Abstract: According to the invention, there is provided an inbred corn plant designated RQAB7. This invention thus relates to the plants, seeds and tissue cultures of the inbred corn plant RQAB7, and to methods for producing a corn plant produced by crossing the inbred plant RQAB7 with itself or with another corn plant, such as another inbred. This invention further relates to corn seeds and plants produced by crossing the inbred plant RQAB7 with another corn plant, such as another inbred, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of the inbred corn plant RQAB7, and also to the RFLP and genetic isozyme typing profiles of inbred corn plant RQAB7 ...
Replacement of Normal Maize with Quality Protein Maize on Performance, Immune Response and Carcass Characteristics of Broiler Chickens - Normal Maize;Quality Protein Maize;Performance;Immune Response;Carcass Characteristics;Broiler Chickens;
The inclusion of wet distillers grains plus solubles (WDGS) in feedlot diets has become a common practice in many regions of the United States due to the expanded production of byproducts and fluctuating corn prices related to ethanol production and other factors. In addition, societal concerns over the continued use of antimicrobials in agriculture production combined with an enhanced interest in disease and pathogen prevention in the food supply have led to an increased interest in use of direct-fed microbials (DFM) in growing and finishing cattle. Direct-fed microbials have been shown to improve ADG and feed efficiency, alter ruminal fermentation, and decrease fecal shedding of potential harmful pathogens in feedlot cattle in some experiments. The objective of this experiment was to evaluate the effects of WDGS inclusion with or without a DFM containing Lactobacillus acidophilus (1 x 10(6) cfu . heifer(-1) . d(-1)) combined with Propionibacterium freudenreichii (1 x 10(9) cfu , heifer(-1) . ...
TY - JOUR. T1 - Biochemical profile of leaf, silk and grain samples of eight maize landraces (Zea Mays L.) cultivated in two low-input agricultural systems. AU - UARROTA , VIRGILIO GAVICHO. AU - Severino, Ricardo Brasil. AU - Malinowsky, Carina. AU - de Oliveira, Simone Kobe. AU - Kuhnen, Shirley. AU - Yunes, Rosendo Augusto. AU - Maraschin, Marcelo. PY - 2014/12/1. Y1 - 2014/12/1. N2 - This research aimed to determine the biochemical profile of leaf, silk and grain samples of eight maize landraces (Zea maysL.) cultivated in southern Brazil. To accomplish this, reverse-phase high performance liquid chromatography-UV-visible (RP-HPLC-UV-vis), UV-vis spectrophotometry, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and chemometrics were used to examine carotenoids and their isomers, anthocyanin and phenolic acids. Leaf tissue samples showed higher amounts of carotenoids (838.6μg/g - Língua de Papagaio variety), anthocyanins (405.8μg/g - Palha Roxa ...
Examination of wild ancestors can identify which traits have been altered by selection as possible targets for genetic improvement. We investigated the whole plant response to low nitrogen (LN), especially below ground, by the wild ancestor of modern maize (Zea mays L.), Balsas teosinte (Zea mays subsp. parviglumis H. H. Iltis & Doebley). Teosinte responded to LN by reducing the shoot N concentration and increasing the root:shoot biomass ratio. The lengths of individual crown roots and the total lateral root length increased, compensated by reduced crown root number. Low N caused a decrease in total root hair (RH) length and increased expression of high affinity nitrate transporters. To facilitate future mapping studies, these results were compared to a modern inbred (W22) used as the parent in a modern maize × teosinte population and extensively employed in maize domestication studies. The adaptations to LN in teosinte and W22 were surprisingly conserved, but the strategies employed were ...
The results clearly indicated that the seed germinibility in the presence of FB1 was decreased with increasing their concentration, whereas the germinibility was uncompletely ceased at high concentrations, a slight initial lag in germination observed at lowest concentration 28.57 µg /ml and highest concentration 64.11 µg /ml, respectively compared with the control. At concentration of FB1 (28.57 µg /ml), elongation of the hypocotyls and epicotyls in seedlings slightly inhibited compared with the control. Chlorophyll a and b content of seedlings of Zea mays decreased with increasing concentrations of Fumonisin B1. Chlorophyll a content was 6.23, 3.88 and 3.91 (mg/ g fresh weight) at concentrations 28.57, 40.54 and 64.11 (µg /ml) of Fumonisin B1 compared with the control 8.55 mg/ g fresh weight. The ultrastructural studies indicate that there were dramatic differences between the treated and untreated tissues of Zea mays seedlings with the toxin FB1. The treated cells with FB1 are highly
Sweet corn (Zea mays L. var. rugosa) is one of the most popular summer vegetable crops grown in Missouri. Like peppers, pumpkins, squash and beans, sweet corn is native to the New World where it has been cultivated for more than 4,000 years. Sweet corn is a monecious plant, which means it has a separate male and female flower on each stalk. The tassel is the male flower, which produces the pollen, and the ear is the female flower (Figure 1). For kernels to form on each ear, pollen from the tassel must be deposited on the silk of the ear. Sweet corn is wind pollinated, although bees are often seen collecting nectar and pollen from the tassels. For small plantings of sweet corn, a series of short rows rather than a single, long row will improve the chances for efficient pollination. Sweet corn typically produces one or two ears per plant.. Sweet corn is sensitive to cool weather and should be seeded when soil temperatures reach at least 60 degrees Fahrenheit (2 inch depth) or about 7 to 10 days ...
We obtained transgenic maize plants by using high-velocity microprojectiles to transfer genes into embryongenic cells. Two selectable genes were used to confer resistance to either chlorsulfuron or phosphinothricin, and genes encoding either E. coli beta-glucuronidase or firefly luciferase were used …
An investigation was taken up at Maize Research Station, Agricultural Research Institute, PJTSAU, Hyderabad during 2013-14. F1 material was generated by making crosses between BML 6 × CML 181 and BML 7 × CML 181for introgression of opaque 2 gene from Mexican donor CML181 through molecular breeding approach. The converted quality protein maize BML 6 and BML 7 lines (designated as CB6 and CB7) with increased levels of lysine and tryptophan were crossed in various combinations to select a hybrid with increased lysine, tryptophan and high yield. The performance of elite maize genotypes, donor and derived QPM inbreds and their hybrid combinations were analysed for yield and yield attributing characters. The experiment was designed with three replication following Randomized Block Design. Observations were recorded on twelve quantitative and qualitative traits. Hybrids recorded superior performance to parents with respect to plant height (cm), ear height (cm), number of kernel rows per ear, 100 kernel
A discontinuous sucrose density gradient was used to separate membrane fractions from a homogenate of maize root tips. Endoplasmic reticulum-, Golgi apparatus-, plasma membrane- and mitochondria-rich fractions were identified by their enzymic characteristics and by their appearance under the electron microscope. Maize roots were incubated in vivo with D-[U-14C]glucose, [Me-14C]choline chloride and diazotized [U-3H]sulphanilic acid. The pattern of incorporation of radioactivity into the various membrane fractions was investigated. Analyses of the polypeptide chains of the membrane fractions by SDS-polyacrylamide gel electrophoresis showed that the mitochondria-rich fraction had a different pattern of polypeptides from that of the other membrane fractions. The results are discussed in relation to the hypothesis of endomembrane flow and differentiation. ...
A method of removing the hull from corn kernels wherein the method involves exposing the corn kernels to ammonia (e.g., gas-phase anhydrous) under conditions effective to remove the hull from corn kernels.
As family farming in Central Illinois, our fields are filled with cash crops of yellow dent corn [field Corn] and soybeans. However, we always save room for the sweet corn patch. Similar to farmers in our area, our sweet corn is planted in a corner of the field side by side to our field corn. Since, sweet corn is the cream of our crop not financially but a Bonus Nutritional Crop for our dining pleasure all year long, we take great care in raising it. Our family was exciting at the chance to try for free the new Performance Series™ sweet corn Obsession II Variety provide by the Monsanto Company. If you do not partake in the art of growing your own vegetables, you may be asking why our family is stoked about trying a new type of sweet corn. Obsession II is a biotech sweet corn. Yes, I said the BIOTECH word- a term that has been characterized as evil or bad. However, Biotechnology or genetic engineering, simply put, is the process of inserting a desired gene (naturally occurring) from one ...
Leaves of higher plants are produced in a sequential manner through the differentiation of cells that are derived from the shoot apical meristem. Current evidence suggests that this transition from meristematic to leaf cell fate requires the down-regulation of knotted1-like homeobox (knox) gene expression. If knox gene expression is not repressed, overall leaf shape and cellular differentiation within the leaf are perturbed. In order to identify genes that are required for the aquisition of leaf cell fates, we have genetically screened for recessive mutations that confer phenotypes similar to dominant mutations (e.g. Knotted1 and Rough sheath1) that result in the ectopic expression of class I knox genes. Independently derived mutations at the rough sheath2 (rs2) locus condition a range of pleiotropic leaf, node and internode phenotypes that are sensitive to genetic background and environment. Phenotypes include dwarfism, leaf twisting, disorganized differentiation of the blade-sheath boundary, ...
Prior to their release in the environment, transgenic crops are examined for their health and environmental safety. In addition, transgene expression needs to be consistent in order to express the introduced trait (e.g. insecticidal and/or herbicide tolerance). Moreover, data on expression levels for GM events are usually required for approval, but these are rarely disclosed or they are considered insufficient. On the other hand, biosafety regulators do not consider epigenetic regulation (e.g. DNA methylation, ncRNAs and histone modifications), which are broadly known to affect gene expression, within their risk assessment analyses. Here we report the results of a DNA methylation (bisulfite sequencing) and transgene transcript accumulation (RT-qPCR) analysis of four Bt-expressing single transgenic maize hybrids, under different genetic backgrounds, and a stacked transgenic hybrid expressing both insecticidal and herbicide tolerance traits. Our results showed differences in cytosine methylation levels in
Prior to their release in the environment, transgenic crops are examined for their health and environmental safety. In addition, transgene expression needs to be consistent in order to express the introduced trait (e.g. insecticidal and/or herbicide tolerance). Moreover, data on expression levels for GM events are usually required for approval, but these are rarely disclosed or they are considered insufficient. On the other hand, biosafety regulators do not consider epigenetic regulation (e.g. DNA methylation, ncRNAs and histone modifications), which are broadly known to affect gene expression, within their risk assessment analyses. Here we report the results of a DNA methylation (bisulfite sequencing) and transgene transcript accumulation (RT-qPCR) analysis of four Bt-expressing single transgenic maize hybrids, under different genetic backgrounds, and a stacked transgenic hybrid expressing both insecticidal and herbicide tolerance traits. Our results showed differences in cytosine methylation levels in
0040]In one embodiment, a transgene whose expression results or contributes to a desired trait to be transferred to sweet corn inbred line R373D comprises a virus resistance trait such as, for example, a MDMV strain B coat protein gene whose expression confers resistance to mixed infections of maize dwarf mosaic virus and maize chlorotic mottle virus in transgenic maize plants (Murry et al. Biotechnology (1993) 11:1559-64, incorporated herein by reference). In another embodiment, a transgene comprises a gene encoding an insecticidal protein, such as, for example, a crystal protein of Bacillus thuringiensis or a vegetative insecticidal protein from Bacillus cereus, such as VIP3 (see for example Estruch et al. Nat Biotechnol (1997) 15:137-41, incorporated herein by reference). In one embodiment, an insecticidal gene introduced into inbred sweet corn line R373D is a Cry1Ab gene or a portion thereof, for example introgressed into sweet corn inbred line R373D from a maize line comprising a Bt-11 ...
TY - JOUR. T1 - Mycorrhizal impacts on root trait plasticity of six maize varieties along a phosphorus supply gradient. AU - Wang, Xin-Xin. AU - Li, Hongbo. AU - Chu, Qun. AU - Feng, Gu. AU - Kuyper, Thomas W.. AU - Rengel, Zed. PY - 2020/1/9. Y1 - 2020/1/9. N2 - Background and aims: Plasticity of plants refers to their ability to produce different phenotypes in different environments. Plants show plasticity aboveground as well as belowground. The influence of the arbuscular mycorrhizal fungal (AMF) symbiosis on root plasticity is poorly known. This study aimed to quantify plasticity of root-system related, morphological, physiological or mycorrhizal traits along a soil phosphorus (P) supply gradient. Methods: Six varieties of maize (Zea mays L.) were grown in pots with or without AMF at five rates of P supply. Fifteen root traits were measured and calculated after seven weeks of growth. Results: Root system traits (biomass and length) and physiological traits (phosphatase activity at the root ...
TY - CHAP. T1 - Relationship between properties of maize cell walls and in vitro fermentation characteristics. AU - He, Y.. AU - Dijkstra, J.. AU - Mouthier, T.M.B.. AU - Kabel, M.A.. AU - Cone, J.W.. PY - 2015. Y1 - 2015. M3 - Abstract. SP - 33. EP - 34. BT - Proceedings of the 40th Animal Nutrition Research Forum. PB - Ghent University - Faculty of Veterinary Medicine. CY - Merelbeke. ER - ...
PAN Czytelnia Czasopism, CHLOROPHYLL CONTENT OF APHID-INFESTED SEEDLING LEAVES OF FIFTEEN MAIZE GENOTYPES - Acta Biologica Cracoviensia s. Botanica
Varietal Screening of Winter Maize Genotypes in Terai Region of Nepal - Agrarwissenschaften - Bachelorarbeit 2019 - ebook 16,99 € - Diplomarbeiten24.de
RNase P, a ribonucleoprotein responsible for the 5´ maturation of precursor tRNAs (ptRNAs) in all organisms, can be enticed to cleave any target mRNA that forms a ptRNA-like structure and sequence-specific complex when bound to an RNA, termed the EGS (external guide sequence). In the present study, F3H (flavanone 3-hydroxylase), a key enzyme in the flavonoid biosynthetic pathway that participates in the formation of red-coloured anthocyanins, was used as a target for RNase P-mediated gene disruption in maize cells. Transient expression of an EGS complementary to the F3H mRNA resulted in suppression of F3H to 29% of the control, as indicated by a reduced number of anthocyanin-accumulating cells. This decrease was not observed in experiments where a disabled mutant EGS was expressed. Our results demonstrate the potential of employing plant RNase P, in the presence of an appropriate gene-specific EGS, as a tool for targeted degradation of mRNAs.. ...
Ngoc Chi Dang, Ingrid Aulinger-Leipner, Ham Le Huy, Peter Stamp: Protein Quality Improved Waxy Maize Varieties for South East Asia
Corn is one of the most popular crops to grow in the home garden. Not only is it delicious, but it is impressive when all goes well. But what happens if your corn plants have yellowing leaves? And how do you go about treating them? Find out here.
Maize leaf blades differentiate dimorphic photosynthetic cell types, the bundle sheath and mesophyll, between which the reactions of C(4) photosynthesis are partitioned. Leaf-like organs of maize such as husk leaves, however, develop a C(3) pattern of differentiation whereby ribulose bisphosphate carboxylase (RuBPCase) accumulates in all photosynthetic cell types. The Golden2 (G2) gene has previously been shown to play a role in bundle sheath cell differentiation in C(4) leaf blades and to play a less well-defined role in C(3) maize tissues. To further analyze G2 gene function in maize, four g2 mutations have been characterized. Three of these mutations were induced by the transposable element Spm. In g2-bsd1-m1 and g2-bsd1-s1, the element is inserted in the second intron and in g2-pg14 the element is inserted in the promoter. In the fourth case, g2-R, four amino acid changes and premature polyadenylation of the G2 transcript are observed. The phenotypes conditioned by these four mutations demonstrate
TY - JOUR AU - Srdić, Jelena AU - Pajić, Zorica AU - Filipović, Milomir AU - Babić, Milosav AU - Sečanski, Mile PY - 2011 UR - http://rik.mrizp.rs/handle/123456789/372 AB - Sweet corn is mutation of field corn in which greater accumulation of sugars and water soluble polysaccharides provide specific taste and texture. It is consumed in the milky stage of the endosperm, so the products quality and its appearance are important as well as ear yield. That is why breeders pay the same attention to these traits in breeding process. In this paper we analyzed combining ability and mode of inheritance of ear yield and yield components in sweet corn, such as kernel-row number, and ear length, by the use of diallel crosses of six sweet corn inbred lines. ANOVA showed that estimates of general (GCA) and specific (SCA) combining abilities were highly significant (p lt 0.01) for all observed traits. Nonaditive gene effects were more significant in the expression of ear yield and ear length, while ...
Seventeen elite maize inbred lines of West and Central Africa adaptation with tropical and temperate x tropical origin were investigated for diversity at 18 SSR loci in non-coding regions of the maize genome, alongside two temperate inbred lines (B73 and Mo17), perennial teosinte (Zea diploperennis) and gamagrass (Tripsacum dactyloides). A total of 174 alleles were detected with a range of 5 to 15 alleles per maker and an average of 9.7 alleles per locus. Polymorphic information content (PIC) ranged from 0.29 in umc1226 to 0.92 in bnlg2122 with an average of 0.75. Relationships between heterotic groups and groups based on SSR data were quite varied for the lines studied. Primarily, the SSR markers grouped the lines on the basis of their origin, with three instances of a pair of heterotic lines clustering together; one pair of temperate origin and the other two tropical vs temperate x tropical. Four inbred lines (CMR 19, CMR 20, CMR 21, and CMR 26), belonging to three heterotic groups were, however,
Abstract: In a 2x2x3 factorial study, the effect of milling technique (hammer vs. roller) with differing particle sizes (fine or coarse) of maize from three sources (Downs, Emerald or Moree) on growth performance, ileal digestibility and intestinal microbial profiles of broiler chickens (from 1-21 days post-hatch) was investigated. A total of 420 day-old male Cobb chicks were randomly allocated to 12 treatments of 5 replicates (seven birds per replicate) in brooder cages set up in an environmentally controlled room. The maize grain was finely ground using a hammer mill or roller mill with a 2 mm screen or coarsely ground through a 4 mm screen. Feed intake up to 7 days of age was higher (p,0.003) on the diet containing finely roller-milled grain than on the coarsely milled grain but no effect found on d21. Live weight was affected by the source of maize (p,0.04). The FCR to d21 was improved (p,0.042) on the Moree maize that was finely roller milled. The relative weight of proventriculus plus ...
Maize breeding efforts to generate high yielding and adaptive cultivars have recently been given emphasis by national maize breeding program. In Ethiopia, the maize production system is mainly dominated by subsistence farmers where their production is below average. The objectives of this study were to determine the combining ability between lines and testers, and to evaluate the performance of crosses (hybrids) and parents for grain yield and yield component traits. Twenty-seven inbred lines were generated by crossing nine female lines (L1-L9) and three male testers (T1-T3) using line × tester mating system at International Maize and Wheat Improvement Center (CIMMYT), East African high land maize improvement program. The inbred lines along with parents were evaluated in randomized complete block design with two replications at three locations (Ambo, Kulumsa and Haramaya). Significant differences were observed among genotypes for all ten traits considered. Eight crosses (L1 × T2, L1 × T3, L3 × T3,
The Plants Database includes the following 1 variety of Zea mays ssp. parviglumis . Click below on a thumbnail map or name for variety profiles ...
The history of maize breeding methods in the USA is reviewed to examine the question of types of maize cultivars in sustainable agriculture. The yield potential of OP cultivars was much higher than national average yields prior to 1930, but hybrid cultivars today often out-yield OP cultivars by 50-100% or more. However, rates of gain for yield using recurrent selection on populations appear equal to that recorded for commercial hybrid breeding. The inbred-hybrid method, while successful, was not
INTRODUCTION. Cereal grains contribute to over 60% of the total world food production. In spite of being among the most important species cultivated in the world and serving as a source of dietary calories and protein, maize grains are poor in both oil content (OQuinn et al., 2000; Romanelli & Milan, 2005) and quality protein (Varisi et al., 2007), since their predominant grain storage proteins, the zeins, are deficient in lysine and tryptophan (Azevedo et al., 1997; Ferreira et al., 2006; Landry & Delhaye, 2007) The study of nitrogen (N) metabolism has been a major factor to help understanding amino acids metabolism (Medici et al., 2004, 2005; Lea & Azevedo, 2006, 2007; Samborski et al., 2008). Different strategies have been used to improve these traits by either independent or concomitant approaches. Maize has been improved for high oil content alone (Adams & Jensen, 1987; Thomison et al., 2003), or both high oil and high lysine contents (OQuinn et al., 2000), using traditional plant ...
The [email protected] Centre provides a platform for research students to deposit their Ph.D. theses and make it available to the entire scholarly community in open access ...
Author Summary Natural allelic variability is crucial for genetic improvement. While the genetic mechanisms leading to such variation have been studied in depth, relatively less is known about the role of epigenetic mechanisms in generation of allelic diversity. Paramutation is a phenomenon in which one allele can silence another allele in trans and, once established, such epigenetic silencing is heritable. To further understand the molecular components of paramutation, we characterized two epialleles of the pericarp color1 (p1) gene of maize, which originated from a common progenitor; however, only one of these alleles is paramutagenic. Results show that, while both alleles have high levels of symmetric (CG and CHG) methylation in a distal enhancer element, only the paramutagenic allele has higher levels of asymmetric (CHH) methylation. Since CHH methylation is imposed and maintained through RNA-mediated mechanisms, these results indicate that paramutation at the p1 locus involves RNA-mediated
During its long domestication process, maize has lost its ability to survive in the wild. In the Netherlands, the appearance of maize volunteers is rare and establishment of volunteers in the wild has never been reported. There are no reasons to assume that the introduced traits will increase the potential of maize to establish feral populations. The introduced genes cannot spread to closely related species since wild relatives of maize are not present in Europe. Therefore, COGEM is of the opinion that incidental spillage of maize line 98140 will probably not pose a risk to the environment.. However, COGEM points out that the molecular analysis of maize line 98140 does not meet the criteria of COGEM as the applicant restricted the analysis of putative open reading frames at the junction between maize genomic DNA and the T-DNA fragment to amino acid sequences that start with a methionine residue ...
Native to various parts of Central America, the corn plant (Zea mays) has been grown and bred by humans for centuries, confounding botanists as to their precise native region or genetic identities. Overall, there are four species of wild corn. Corn grows quickly as an annual, completing its entire life cycle in one ...
TERRA, Tatiana de Freitas et al. Genetic variability in maize and teosinte populations estimated by microsatellites markers. Cienc. Rural [online]. 2011, vol.41, n.2, pp.205-211. Epub Feb 11, 2011. ISSN 0103-8478. http://dx.doi.org/10.1590/S0103-84782011005000005.. Wild species are important sources of genetic variability and may be exploited by breeding programs. Crosses between teosinte and maize occur freely and teosinte serves as genetic source of agronomic traits for introduction in maize. The objective of this study was to estimate genetic variability among and within maize and teosinte populations (Zea mays mexicana). Two sweet maize populations (BR400 and BR402), two common maize populations (Suwan and Pampa) and one teosinte population were analyzed using microsatellites markers. Results indicated that 64,5% of the variation was detected within the populations, suggesting the possibility of obtaining genetic progress by selection within each population. The analysis with 25 ...
Paper: Linear and nonlinear-segmented models describing response of maize grain yield to nitrogen fertilization. The 11th Agronomy Conf., Assiut Univ., 15-16 November, Egypt , Author:Tageldin, M.H., and N.K.B. El-Gizawy , Year:2005 , Faculty of Agriculture ,Department of Agronomy ,Benha University
A novel maize variety designated PH25M1 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH25M1 with another maize plant. Methods for
FOND DU LAC - With tar spot apparently having established itself as a permanent late season disease threat to corn in Wisconsin, Extension Service plant pathologist Damon Smith wants to update his data for where it has appeared in the state.. Speaking at the 2019 pest management update meetings, Smith asked growers and crop consultants from the counties bordering Lake Michigan to share samples of corn plant residue for testing if there was any suspicion of the disease in the field. This would augment the documented outbreaks of various severity in multiple counties in the southern half of the state in the past few years, he noted.. During 2019, tar spot was also found in all but the far western counties in Iowa, far southern Minnesota, the northern half of Illinois, much of Indiana, southern Michigan, and one county in Ohio. The disease thrives on wet corn foliage, as was illustrated in the photo of an irrigated Michigan field even though the field was treated with a fungicide as the corn was ...
Maize (Zea mays L.) is a cereal that has grown in all agricultural regions of the world. It is a cereal grown in a wide variety of growing conditions ranging from tropical to temperate climates. However, climate change, which is causing more intense drought followed by severe soil degradation, will lead to a reduction in the development and production of maize plants in northern Côte dIvoire. The aim of this study was to develop high-performance cultivars adapted to environmental conditions within a short period of time; Gamma radiation-induced mutation techniques were initiated. Three different gamma radiation doses (100; 200; 300 Grays) were applied to maize seeds of the variety EV8728. These seeds had grown and the technique of controlled self-fertilization was carried out as soon as the first flowers appeared. Data collected were analyzed with Statistic software. The impact of gamma irradiation at different doses on the growth and yield of first generation maize mutants was evaluated. ...
The Ac-specific ORFa protein, overexpressed in a baculovirus system, specifically binds to several subterminal fragments of Ac. The 11 bp long inverted repeats of the transposable element are not bound by the ORFa protein. Major ORFa protein-binding sites were delineated on 60 and 70 bp long sequenc …
for te1 in maize are 57 and 44% of these values for ssp. parviglumis. In addition, there are only three maize haplotypes among 12 maize individuals compared to five haplotypes among 5 ssp. parviglumis individuals, suggesting that haplotypic diversity is reduced more severely than nucleotide diversity. Simulations of the bottleneck process have shown that the reduction in maize genetic diversity can be explained by a short bottleneck involving only a few individuals (Eyre-Walkeret al. 1998). The low number of te1 haplotypes in maize may therefore be due to a narrow bottleneck from which only a few haplotypes emerged.. Time of historical events: Since te1 appears to be evolving in a neutral manner, te1 sequences should be useful in estimating the time of historical events. To do this requires that the rate of sequence evolution at synonymous sites be known. Gaut and colleagues (Gautet al. 1996; Eyre-Walkeret al. 1998; Hilton and Gaut 1998) have used a rate of 6.5 × 10−9 substitutions per ...
Improvement of biofeedstock quality for cellulosic ethanol production will be facilitated by inexpensive and rapid methods of evaluation, such as those already employed in the field of ruminant nutrition. Our objective was to evaluate whether forage quality and compositional measurements could be used to estimate ethanol yield of maize stover as measured by a simplified pretreatment and simultaneous saccharification and fermentation assay. Twelve maize varieties selected to be diverse for stover digestibility and composition were evaluated. Variation in ethanol yield was driven by glucan convertibility rather than by glucan content. Convertibility was highly correlated with ruminal digestibility and lignin content. There was no relationship between structural carbohydrate content (glucan and neutral detergent fiber) and ethanol yield. However, when these variables were included in multiple regression equations including convertibility or neutral detergent fiber digestibility, their partial regression
Cool nights and some rainy days appear to be holding corn pests at moderate levels for this time of year, as the sweet corn season winds down. However, we may still have the remnants of tropical storms to deal with over the next couple of weeks which could cause an increase in corn earworm and/or fall armyworm populations. Next week will be the last scheduled issue of the Sweet Corn IPM Newsletter for the 2017 season.. European corn borer: No moth captures this week, suggesting the threat of corn borer may be over for this season. Larval feeding injury on younger corn was also very low, and did not exceed threshold at any location.. Corn earworm: Overall, moth counts remain fairly low this week, but high enough to keep some sites on a tight spray schedule for any fresh silking corn remaining. A 5-day spray schedule was recommended in Auburn, New Gloucester, North Berwick, and Wells. A 4-day spray interval was recommended in Biddeford, Cape Elizabeth, one Dayton location, Lewiston, Monmouth and ...
View Notes - Homework Due 100410 from BIOL 202 at UNC. I HAVE USED THIS ASSIGNMENT! IF YOU USE IT YOU WILL BE CAUGHT! 1. Two pure breeding corn plants at 3 loci are crossed, one homozygous WT, the
190 calores; 4 g fiber. Non GMO. Gluten free. Open with joy. Eat Happy: We barely popped these addictive corn kernels for a crispy crunch that comes packaged with 4 grams of fiber. No wonder theyre so darn popular. - Joy Bauer. Certified: Gluten-free. Try all of our delicious varieties. nourishsnack.com.. ...
Photo about Harvested corn kernels sit ready to be processed for various uses that range from ethanol to farm animal feed. - 34438643
Question - Feeling corn kernel stuck in throat under tonsil. What could this possibly be?. Ask a Doctor about Palate, Ask an ENT Specialist
Fingerprint Dive into the research topics of Ultrastructural characterization of maize (Zea mays L.) kernels exposed to high temperature during endosperm cell division. Together they form a unique fingerprint. ...
Vitti, A., J.; Bergamin-Filho, A.; Amorim, L.; Fegies, N., C., 1995: Comparative epidemiology of common maize rust and northern corn maize rust and northern corn leaf blight: II. Epidemic development under natural infection