<?xml version="1.0" encoding="UTF-8"?><article>
  <title>Genetic variability for yield and yield attributing traits in Advance wheat breeding lines evaluated under Temperate Ecology</title>

      <doi>https://doi.org/10.21276/AATCCReview.2025.13.02.107</doi>
  
  <authors>
      </authors>

      <abstract><![CDATA[<p>The present study was conducted to determine variability for complex traits of yield and<br />
yield attributes by measuring different morphologically related metric traits and evaluation<br />
of the traits which that are closely related to yield. Grain yield showed high heritability along<br />
with high genetic advance yield and the characters which high heritability along with high<br />
genetic advance and genetic gain were spike length, 1000-grain weight, spikelet per spike,<br />
grains per spike, seed size, awn length, peduncle length, and stem weight would be effective<br />
for selection in the breeding programme. However, highest estimates of heritability (b.s.)<br />
accompanied by high genetic advance as per cent of mean were recorded for grain yield/ ha.<br />
The estimates of genotypic coefficient of variation (GCV) were highest for grain yield<br />
(35.24%) followed by 1000 grain weight (23.42%), grains per spike (19. 34%) and a number<br />
of spikelet spike (19.32%).It is obvious that yield is a polygenic trait that results from the<br />
contribution of many interacting factors. The phenotypic and genotypic correlations for yield<br />
and yield attributing traits revealed that grain yield exhibited positive and highly significant<br />
genotypic and phenotypic correlation with 1000 grain weight, grains per spike, and spikelets<br />
per spike but exhibited negative and significant genotypic and phenotypic correlation with<br />
days to flowering and days to maturity. The highest indirect positive effects of a number of<br />
grains per spike on grain yield was recorded via a number of spikelets per spike (0.368)<br />
followed by spike length (0.136) and flag leaf length (0.123) whereas grains per spike<br />
recorded a moderate negative indirect effect via length breadth ratio (-0.014), awn length (-<br />
0.011) and peduncle length (-0.145) on grain yield. This study offers treasured acumens for<br />
breeders and researchers working on enhancing wheat productivity to meet the mounting<br />
demands of increasing human population</p>
]]></abstract>
  
  <body><![CDATA[<div class="aatcc-article-container"><div class="aatcc-category-label">Current Issue</div><div class="aatcc-meta-box"><div class="aatcc-doi-wrap">
            <a class="aatcc-doi-btn" href="https://doi.org/10.21276/AATCCReview.2025.13.02.107" target="_blank">https://doi.org/10.21276/AATCCReview.2025.13.02.107</a>
        </div><div class="aatcc-abstract-section">
                <h3>Abstract</h3>
                <div class="aatcc-abstract-text"><p>The present study was conducted to determine variability for complex traits of yield and<br />
yield attributes by measuring different morphologically related metric traits and evaluation<br />
of the traits which that are closely related to yield. Grain yield showed high heritability along<br />
with high genetic advance yield and the characters which high heritability along with high<br />
genetic advance and genetic gain were spike length, 1000-grain weight, spikelet per spike,<br />
grains per spike, seed size, awn length, peduncle length, and stem weight would be effective<br />
for selection in the breeding programme. However, highest estimates of heritability (b.s.)<br />
accompanied by high genetic advance as per cent of mean were recorded for grain yield/ ha.<br />
The estimates of genotypic coefficient of variation (GCV) were highest for grain yield<br />
(35.24%) followed by 1000 grain weight (23.42%), grains per spike (19. 34%) and a number<br />
of spikelet spike (19.32%).It is obvious that yield is a polygenic trait that results from the<br />
contribution of many interacting factors. The phenotypic and genotypic correlations for yield<br />
and yield attributing traits revealed that grain yield exhibited positive and highly significant<br />
genotypic and phenotypic correlation with 1000 grain weight, grains per spike, and spikelets<br />
per spike but exhibited negative and significant genotypic and phenotypic correlation with<br />
days to flowering and days to maturity. The highest indirect positive effects of a number of<br />
grains per spike on grain yield was recorded via a number of spikelets per spike (0.368)<br />
followed by spike length (0.136) and flag leaf length (0.123) whereas grains per spike<br />
recorded a moderate negative indirect effect via length breadth ratio (-0.014), awn length (-<br />
0.011) and peduncle length (-0.145) on grain yield. This study offers treasured acumens for<br />
breeders and researchers working on enhancing wheat productivity to meet the mounting<br />
demands of increasing human population</p>
</div>
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            <a class="aatcc-pdf-btn" href="https://aatcc.peerjournals.net/wp-content/uploads/2025/05/Genetic-variability-for-yield-and-yield-attributing-traits-in-Advance-wheat-breeding-lines-evaluated-under-Temperate-Ecology.pdf" target="_blank">View / Download PDF</a>
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