CORRELATION AND PATH COEFFICIENT STUDIES FOR GRAIN YIELD AND OTHER YIELD ATTRIBUTES ON AROMATIC SHORT GRAIN RICE (Oryza sativa L.) GENOTYPES
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 51
Abstract
The present study was carried out on Aromatic short grain rice genotypes tested under Advance Varietal Trial-Two (AVT-2) consisting of total 11 entries along with three checks. The trial was conducted at Thakur Chhedilal Barrister College of Agriculture and Research Station, Sarkanda (IGKV Raipur), Bilaspur, and Chhattisgarh during kharif 2013. Thirty days old seedlings were transplanted by maintaining 20 cm plant-to-plant and row-to-row spacing. Analysis of variance reflected significant differences among the genotypes for all the traits studied. Association analysis suggested that days to 50% flowering and days to maturity exhibited highly significant negative genetic association with number of productive tillers per plant, 1000 grain weight and grain yield per plant. Plant height and panicle length exhibited highly significant positive genetic association with tillers per plant and 1000 grain weight but grain yield shown negative association with plant height. Plant height exhibited highly significant positive genetic association for panicle length and flag leaf length. Flag leaf length correlates negatively with tillers per plant suggest that few tillers increases flag leaf length. Tillers per plant and 1000 grain weight height exhibited highly significant positive genetic association for grain yield. Path analysis had portioned the direct and indirect effects and concludes that flag leaf length has high direct effect followed by days to maturity, tillers per plant and panicle length. Association and path analysis suggested that productive tillers per hill, days to maturity, panicle length and 1000 grain weight may be considered important for the improvement of grain yield in the aromatic rice.
Authors and Affiliations
ROSHAN PARIHAR
Keywords
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