Formerly International Journal of Basic and Applied Agricultural Research

Study of genetic diversity in bread wheat (Triticum aestivum L. em. Thell) under late sown irrigated conditions

VIJAY KAMAL MEENA , R K SHARMA , NARESH KUMAR , MONU KUMAR and ATTAR SINGH
Pantnagar Journal of Research, Volume - 19, Issue - 1 ( January-April, 2021)

Published: 2021-05-01

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Abstract


Wheat is one of the most important crop among the prime cereals at the global level. In the present investigation, 36 bread wheat (Triticum aestivum L.) genotypes were evaluated to estimate the extent of genetic diversity in late sown conditions in 2016-17 and 2017-18 at ICAR-IARI, New Delhi. Analysis of variance revealed that genotypes possess significant genetic variability among all traits. A significant positive correlation was observed among yield, grain weight per spike, grain number per spike, spike per meter square, harvest index and thousand grain weight in both the years whereas in 2017-18 biological yield also found positively significant correlated with yield. On contrary, days to 50% heading and grain filling duration revealed a negative correlation. Diversity analysis classified the evaluated wheat genotypes into four and eight distinct groups based on an index of similarity and dissimilarity of attributing traits in 2016-17 and 2017-18 respectively. A perusal of cluster means for all the traits for both the crop seasons revealed considerable difference all the characters between the clusters. Such differences in genetic component of traits can be applied as a new source of variation. The diverse parents indentified in this study could be used for creating desirable variability.


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