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Meddling Wheat Germplasm to Augment Grain Protein Content and Grain Yield Mohan D*, Gupta RK, Tyagi BS Directorate of Wheat Research, Karnal-132001, Haryana *Author for Correspondence: E-mail: devmohan@gmail.com
Online published on 15 February, 2014. Abstract Association of grain protein content with grain yield components was critically examined in (Triticum aestivum L.) to facilitate development of genetic resources blended with yield and protein. Investigations carried out for four years on 400–450 line/year, revealed that grain weight plays a defining role in augmenting protein content with grain yield. Even though the extent of variability matched in the four populations, negative association between grain size and protein content was not registered when population mean improved and the trend remained unchanged even when shrivelled or poorly developed grains were removed. Negative association between grain size and protein content also weakened when very small grains were separated. A population with increased grain weight enhanced protein yield and it made selection easier. Population with improved grain weight provided an equal opportunity of selecting genotypes of improved grain yield and grain protein with no deficit on genetic variability. The study demonstrated that grain weight can be articulated to combine yield and grain protein content more efficiently. Top Keywords Bread wheat, Diversity, Grain protein content, Grain weight, Protein yield, Selection efficiency, Yield components. Top | |
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