2 edition of Evaluation of parental performance for grain yield in two populations of wheat (Triticum aestivum Vill., Host) found in the catalog.
Evaluation of parental performance for grain yield in two populations of wheat (Triticum aestivum Vill., Host)
Maximino Alcala de Stefano
Published
1973
.
Written in
Edition Notes
| Statement | by Maximino Alcala de Stefano. |
| The Physical Object | |
|---|---|
| Pagination | [12], 74 leaves, bound ; |
| Number of Pages | 74 |
| ID Numbers | |
| Open Library | OL14239228M |
Based on extended field evaluation data for grain yield, plant height, starch content and total pentosan content of elite hybrid rye derived from testcrosses involving two bi-parental populations that were genotyped with molecular markers, we compared the accuracy of prediction of MAS and GS in a cross-validation approach. The F families and the two parental lines were evaluated under artificial Striga infestation to assess variation in their level of resistance. The distributions of grain yield, Striga damage, number of emerged Striga plants as well as ears per plant in the F population are displayed in Figure 1.
The impact of these two landraces on wheat improvement can be seen in the use of a major quantitative trait locus (QTL) for grain yield on chromosome 3A (Ali et al., ; Mengistu et al., ). First, the 3A QTL is most beneficial in the higher-yielding cropping systems of eastern Nebraska and neutral in the lower-yielding cropping systems of. on grain yields of 15 durum wheat genotypes selected from National Durum Wheat Breeding Program tested in 12 rain-fed environments during the 2 cropping seasons ( and ) in Turkey. Results of non-parametric statistics and a combined ANOVA across environments indicated that genotypes varied significantly for grain yield.
a Isolation for the same or higher category of the same species; 2 to 4 m for other species and m for a field of the same species with percent of smut for pre-baisc seed, percent for basic seed, percent for certified 1 seed and percent for certified 2 seed.. b Impurities of other crop species refers to all cereal species other than the crop in question (e.g. in bread wheat. Evaluation of heterosis for grain yield in field trial. Two studies in the s came up with contradictory results. Parent populations can be as far apart as possible without their.
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Evaluation of parental performance for grain yield in two populations of wheat average combining ability of each parent within the populations; (3) estimates of heterosis and heterobeltiosis in the F₁ and (4) the possible influence of the genotype-environmental interactions on the parameters measured.
the number of favorable factors Author: Maximino Alcala de Stefano. To compare grain yield stability of the best 10 hybrids of C 1 S 2-derived lines with that of hybrids formed from pedigree derived lines, commercial checks and founders, we selected two populations ( and ) that were evaluated in three DS locations, and four populations (,and ) that were evaluated in five WW by: Performance and grain yield stability of maize populations followed by two generations of selfing (S 2), and to evaluation From each population, 47–74 C 1S 2 lines developed throughMARS,fiveS 5 linesdevelopedviaphenotypic pedigree selection, and the two founder parents (P1Cited by: Title: EVALUATION OF PARENTAL PERFORMANCE FOR GRAIN YIELD IN TWO POPULATIONS OF WHEAT (TRITICUM AESTIVUM VILL., HOST), Abstract approved: Redacted for privacy Warren E.
Krduistad Six winter wheat cultivars were evaluated for their breeding value in transmitting superior genetic factors for grain yield to sub-sequent progeny. Phenotypic evaluation of parental lines and mapping population. Mean days to flowering (DTF), plant height (PH), grain yield (GY), heritability Author: Shailesh Yadav, Nitika Sandhu, Nitika Sandhu, Vikas Kumar Singh, Margaret Catolos, Arvind Kumar.
A number of mapping studies have been carried out in bi-parental populations for detecting QTLs for grain yield and quality traits because of the ease of population. Figure 1. Phenotypic Variation in Grain Size and Shape in Six DH Mapping Populations.
AxC (A), BxS (B), SxS (C), SaxR (D), SpxR (E), and MxC (F).Within each panel, the grains at the extremities correspond to the parental lines following the order (i.e., left or right) of the cross, while the two middle grains correspond to extreme DH lines. In winter wheat (Triticum aestivum L.), the development of a methodology to estimate genetic divergence between parental lines, when combined with knowledge of parental performance, could be beneficial in the prediction of bulk progeny performance.
The objective of this study was to relate F2 heterosis for grain yield and its components in crosses to two independent estimates of genetic. In experiments harvested in and the grain yields of 61 F 1 hybrids among winter wheat varieties and advanced breeding lines were 59% greater than the yields of the best parents.
In a trial with hybrids inthe hybrids yielded 36% more grain than the best parents. The aim of the study was to evaluate grain yields, protein yields, and net metabolic energy yields of different combinations of spring types of barley, oat, and wheat arranged in 10 mixtures and grown under different soil types.
Naked cultivars of barley and oat were used. The three-year field experiment was conducted at the Agricultural Advisory Centre in Szepietowo, Poland. The grain yield of wheat is determined by three yield components: productive spikes per unit area, number of grains spike-1 and grain weight (Tian et al., ).
The grain yield and its components are controlled by many genes, whose expression is greatly influenced by the varying environments (Groos et al., ). In most of the. Variation and Heritability of Grain Size and Shape in DH Populations. Six morphometric parameters, grain weight (TGW), grain area, width (W), length (L), L/W ratio, and factor form density (FFD), which efficiently and reproducibly capture grain size and shape variation, were measured in a collection of six DH mapping populations (Table 1, Figure 1).
Abstract Wheat (Triticum aestivum) plant and crop responses to seeding rates and fertiliser nitrogen (N) application practices were measured in 19 field experiments undertaken in three successive cropping years. Increasing the number of wheat seeds sown produced more dense wheat populations, reduced both plant grain yield components and plant grain yield, boosted some crop grain yield.
Plant material. Three parental winter rye elite inbred lines (LoN, LoN, LoN) were chosen for this study. Two segregating populations, each consisting of F 2 lines were generated by crossing (1) inbred line LoN with inbred line LoN (Pop-A) and (2) inbred line LoN with inbred line LoN (Pop-B).
Parents belong to the Petkus gene pool (seed parent) and possessed normal. F 3 population Ghaznavi x Pirsabak showed maximum mean value for grain weight ( g) and biological yield ( kg ha-1), whereas, maximum values for grain yield ( kg ha Grain Yield (kg ha-1) Data concerning grain yield are presented in Table 1 and Fig.
Analysis of the data revealed that significant difference was noted for grain yield. Maximum grain yield was produced by line planted 30 cm ( kg ha-1) followed by single row on ridge ( kg ha-1) whereas minimum grain yield.
conducted for grain yield (YLD) and yield components on a wheat association mapping initiative (WAMI) population of elite, spring wheat lines grown under temperate irri-gated high-yield potential condition in Ciudad Obregón, Mexico, during four crop cycles (from – to – ). The population was genotyped with high-density.
The last (third) stage (years 8–12) involves evaluation of F 8 or later generation breeding lines through regional (advanced yield nursery) and state-wide (intrastate yield nursery) trials and large-scale quality trials such as Regional Performance Nursery Programs (RPN) and Wheat Quality Councils (WQC).
Final varietal release decisions are. The field application of jeevamrit over two years ( and ) neither alone nor in combination with chemical fertilizers or farmyard manure influenced the grain yield of rice, maize and.
Promoting Montana wheat and barley overseas, the Wheat and Barley Committee helps foreign buyers source and utilize the grain they need. With the assistance of Montana producers, the committee participates in an Overseas Varietal Analysis survey.
Specific wheat samples are sent for testing and comparison in foreign mills. The results and evaluations are then returned and used to strengthen. predict genotype performance in those environments Wheat yield and end-use quality depend upon the [6]. environment, genotype, and their interaction [16].
Many studies have also reported the high influence of environment and genotype-environment interaction in determining wheat grain yield.
1. Introduction. Wheat, an important source of calories and proteins is a key cereal crop that impacts the global economy and food security. Continuous development of agronomically superior wheat varieties with high grain yield (GY), good nutrition and processing quality and tolerance to biotic and abiotic stresses is critical for ensuring food security.Norman Ernest Borlaug (/ ˈ b ɔːr l ɔː ɡ /; Ma – Septem ) was an American agronomist who led initiatives worldwide that contributed to the extensive increases in agricultural production termed the Green g was awarded multiple honors for his work, including the Nobel Peace Prize, the Presidential Medal of Freedom and the Congressional Gold Medal.
