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  <title>Assessment of genetic variability in F5 generation across upland and lowland condition in rice (Oryza sativa L.)</title>

      <doi>https://doi.org/10.21276/AATCCReview.2025.13.01.50</doi>
  
  <authors>
      </authors>

      <abstract><![CDATA[<p>The present study was conducted with the objectives to estimate genetic variability for<br />
different characters, to estimate heritability, genetic advance as per cent of mean for<br />
identification of promising genotypes suited for direct seeded and transplanted condition in<br />
rice. As varietal development for direct seeded rice has been neglected which may explain<br />
why it has not become popular such comparison were made on uncertain rainfall conditions.<br />
Analysis of variance indicated that the mean square due to between family were highly<br />
significant for all characters under study under direct seeded and transplanted condition,<br />
which revealed presence of significant genetic variability between the families. Intra class<br />
correlation lead the interference that differences between family is large and each family<br />
differentiated distinctly from the other at higher level in F 5 generation. High genotypic and<br />
phenotypic coefficient of variation was recorded for grain yield plant -1 (g) and moderate for<br />
others under direct seeded condition and moderate GCV and PCV was recorded for grain<br />
yield plant -1 and moderate for others in transplanted condition. High heritability coupled with<br />
genetic advance as per cent of mean was recorded for days to 50% flowering, days to<br />
maturity, number of panicles plant -1 , number of spikelets panicle -1 , plant height (cm), number<br />
of filled grains panicle -1 , 1000 grain weight (g), grain yield plant -1 (g) and moderate for others<br />
in direct seeded and transplanted condition. This study, between-family variance was<br />
prioritized during selection to enhance genetic superiority in grain yield. Out of twenty-six<br />
families derived from thirteen crosses, seven families under direct seeding and nine families<br />
under transplanted condition exhibited superior yield traits compared to the check. Notably,<br />
six families demonstrated consistent superiority across both conditions.</p>
]]></abstract>
  
  <body><![CDATA[<div class="aatcc-article-container"><div class="aatcc-category-label">Original Research Article</div><div class="aatcc-meta-box"><div class="aatcc-doi-wrap">
            <a class="aatcc-doi-btn" href="https://doi.org/10.21276/AATCCReview.2025.13.01.50" target="_blank">https://doi.org/10.21276/AATCCReview.2025.13.01.50</a>
        </div><div class="aatcc-abstract-section">
                <h3>Abstract</h3>
                <div class="aatcc-abstract-text"><p>The present study was conducted with the objectives to estimate genetic variability for<br />
different characters, to estimate heritability, genetic advance as per cent of mean for<br />
identification of promising genotypes suited for direct seeded and transplanted condition in<br />
rice. As varietal development for direct seeded rice has been neglected which may explain<br />
why it has not become popular such comparison were made on uncertain rainfall conditions.<br />
Analysis of variance indicated that the mean square due to between family were highly<br />
significant for all characters under study under direct seeded and transplanted condition,<br />
which revealed presence of significant genetic variability between the families. Intra class<br />
correlation lead the interference that differences between family is large and each family<br />
differentiated distinctly from the other at higher level in F 5 generation. High genotypic and<br />
phenotypic coefficient of variation was recorded for grain yield plant -1 (g) and moderate for<br />
others under direct seeded condition and moderate GCV and PCV was recorded for grain<br />
yield plant -1 and moderate for others in transplanted condition. High heritability coupled with<br />
genetic advance as per cent of mean was recorded for days to 50% flowering, days to<br />
maturity, number of panicles plant -1 , number of spikelets panicle -1 , plant height (cm), number<br />
of filled grains panicle -1 , 1000 grain weight (g), grain yield plant -1 (g) and moderate for others<br />
in direct seeded and transplanted condition. This study, between-family variance was<br />
prioritized during selection to enhance genetic superiority in grain yield. Out of twenty-six<br />
families derived from thirteen crosses, seven families under direct seeding and nine families<br />
under transplanted condition exhibited superior yield traits compared to the check. Notably,<br />
six families demonstrated consistent superiority across both conditions.</p>
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