Grain yield variation

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August undefined, 2024

WebGrain yield was correlated with linear grain growth under well-watered (r =0.96) and droughted (r =0.83) conditions. The genotypic variation observed indicates that breeding for a higher rate of linear grain growth and greater contribution of stem reserves to grain yield should be possible in wheat to stabilize grain yield in stressful ... WebJun 16, 2015 · PC2, on the other hand, also accounted for 21.3 % of the total variation among the test genotypes, whereby grain yield, shoot biomass, and harvest index traits were contributing majorly. PC 3 , on the other hand, has contributed for 12.3 % of the total variation of the genotypes mainly resulting from variation in days to grain filling, days to ...

Nitrogen use efficiency in spring wheat: genotypic variation and grain …

WebMay 15, 2024 · Grain yield and yield components of four rice varieties grown in three seasons in Chiang Mai, Thailand. Significant difference within column (by LSD 0.05) … WebJan 8, 2024 · Grain size is an important determinant of rice grain yield, but the genetic basis of the grain size remains unclear. Here, we report a set of chromosome segment substitution lines (CSSL) developed ... phil herbert transport

Spatial variation of yield response and fertilizer

WebGrain filling in rice, a staple cereal crop worldwide, is a critical determinant of grain yield and quality. However, there is little available information on the relationship between … WebJul 24, 2024 · This means that when you multiply this with an average kernel weight you can have a more accurate estimate of grain yield. The formulas for wheat, barley, and oats … WebMar 5, 2024 · We found great spatial variations in grain yield, yield response and relative yield between and within regions. The CVs of yield response to N, P, and K fertilizer application reached 39.2%, 57.0% ... phil herbst cleary

Genotypic variation in the grain photosynthetic contribution to …

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WebJun 18, 2024 · Objectives of this study were to (1) quantify the variation in leaf anatomical, physiological and yield traits among the minor millets and (2) to assess whether photosynthesis associated traits had a relationship with grain yield in minor millet. The result indicated that finger millet, little millet, barnyard millet, proso millet, foxtail ... WebNov 27, 2024 · Introduction. Maize provides 42% of the world-wide food calories consumed by humans, and in doing so it has exceeded the consumption of rice to become the world’s most important cereal crop (Hawkins et al., 2013).By 2050, a 50% increase in cereal grain production will be required to meet the needs of the estimated human population of c. 9.7 … philherWebJan 19, 2024 · Spike shape, plant height, flag leaf angle and thousand-grain weight were the most significant predictors of grain yield, accounting for 45.9 % of the total variation. Spike number, spike shape, leaf water content and flag leaf width were the most significant predictors of thousand-grain weight, accounting for 36.4 % of the total variation. phil herbst

"WebMar 19, 2024 · The YL variation had the highest impact on grain number per square meter and grain yield and, followed by Y and Y × YL, YL had a greater impact on spike number and 1000-grain weight than Y. Significant differences in the mean grain yield were observed among three yield levels. " - Grain yield variation

Grain yield variation

HSP90.2 promotes CO2 assimilation rate, grain weight and yield …

WebJun 10, 2024 · Understanding yield potential and yield-limiting factors is essential for improving profitability and grain yields while avoiding adverse environmental effects. In the USA, grain yield monitors are widely used but the information they provide is rarely used to understand within-field yield variations and associated yield constraints. The objectives … WebDec 1, 2024 · The genotype, environment and management interactions on wheat traits and grain yield variations were analyzed based on long-term field trials during 2003–2016 at five representative stations across China. And then, a machine learning method was applied to quantify the relative contributions of these factors to wheat traits and grain yield ...

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WebApr 14, 2024 · This paper explores the effects of water and nitrogen management on drip irrigated rice root morphology, nitrogen metabolism and yield, clarifies the relationship … WebApr 10, 2024 · Time-series variations of the highest value in the coefficient of determination, R 2, for prediction of (a) measured yield (Y), (b) estimated yield (Y′), (c) number of panicles per unit area (D), (d) number of grains per panicle (N), (e) percentage of ripened grains (R), and (f) 1000-grain weight (W) with respect to the number of days …

WebJan 26, 2024 · P-values and significance of year-to-year variation in maize grain yield and mineral content between the 2024–19 and 2024–20 conservation agriculture trials. Given that maize plant is sensitive to drought stress, variation in climatic conditions, especially rainfall, during the two trial seasons may explain the observed difference. ... WebDec 1, 2024 · With local farmer's practices, about 3.5–40.9%, 19.6–58.3% and 0.1–8.2% of the yield variations were associated with agricultural management practices, climate …

WebApr 29, 2024 · Although the surface roots showed the same trends as grain yield in the field, the soil water consumption did not show this trend (Figs. 5, 8 and 9). Therefore, the root and soil moisture results tended not to explain the … WebWinter rye is the most winter hardy and drought tolerant of all small grains. It continues to grow until late fall, overwinters, and then resumes growth in the spring, making it a …

WebJun 16, 2015 · The estimated values for GCV ranged from 2.7 % for days to grain filling to 20.3 % for grain yield per hectare, while the PCV estimates ranged from 4.3 % for days …

WebDec 29, 2024 · Rice (Oryza sativa L.) is one of the major crops in the world and significant increase in grain yield is constant demand for breeders to meet the needs of a rapidly growing population.The size of grains is one of major components determining rice yield and a vital trait for domestication and breeding. To increase the grain size in rice, … phil heppner phil hercules voice actorWebIn order to identify wheat cultivars most suitable for cultivation in organic agriculture, we tested 16 Romanian winter wheat cultivars in yield tests organized in South Romania at Fundulea and Valu lui Traian during 2024-2024. Most of the yield phil hercules disney wikiWebAround 50% of the increase in grain yield has been attributed to genetic improvement. Genome-wide association (GWA) based on large-scale sequencing provides a powerful … phil hercules costumeWebJan 11, 2024 · Introduction. Increasing grain yield in cereal crops has been a major goal of most breeding programs, and the effects of genetic improvement on yield potential has been reported in several studies [1–6].Improving grain yield has always been a difficult task as it is a typical quantitative trait controlled by several genes, strongly influenced by … phil herman hudsonWebApart from a higher proportion of non-additive variation for yield, the analysis of four diverse wheat varieties indicated that the presence and direction of dominance, as well … phil hercules full nameWebApr 1, 2009 · Grain yield is controlled by quantitative trait loci (QTLs) derived from natural variations in many crop plants. Here we report the molecular characterization of a major rice grain yield QTL that acts through the determination of panicle architecture. The dominant allele at the DEP1 locus is a gain-of-function mutation causing truncation of a ... phil hercules disney