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Articles by Suresh Rai
Total Records ( 1 ) for Suresh Rai
  R. Manohar Reddy , Suresh Rai , A.K. Srivastava , P.K. Kar , M.K. Sinha and B.C. Prasad
  Assorted F1 hybrids and reciprocals of divergent tasar ecoraces of Antheraea mylitta viz., Daba, Jata and Raily were evaluated for relative heterosis. The DabaxJata [R] (random female and male) and its reciprocal hybrids have recorded high positive heterosis for fecundity (+17.45 and +1.70%), egg fertility (+11.58 and +7.20%), shell weight (+34.76 and +27.44%), silk ratio (+30.49 and +24.15%) and silk yields (+94.33 and +82.51%), respectively. Dabax Jata [PxS] (high pupal female and high shell male) hybrid, although recorded positive heterosis for all traits, but was next to random parental hybrids. The DabaxJata [PxP] (high pupal female and high pupal male) combination and its reciprocal have shown positive heterosis only for fecundity (+22.13 and +35.89%), while DabaxJata [SxS] (high shell female and high shell male) hybrid and its reciprocal are positive in shell weight (+45.12 and +33.54%) and silk ratios (+26.95 and 27.95%). All hybrids of DabaxRaily including reciprocals have shown negative heterosis for fecundity and silk yields. However, DabaxRaily [R], [SxS], [PxS] hybrids and their reciprocals have shown uneven positive heterosis for egg fertility (+1.65 to +20.74%), shell weight (+7.56 to +56.98%) and silk ratios (+1.02 to +54%). In general, all reciprocal F1 hybrids of Daba, Jata and Raily ecoraces have shown lesser heterosis. The dissimilar performance of assorted F1 hybrids and reciprocals of Daba, Jata and Raily ecoraces reveal their varied potential on relative heterosis. However, the study infers commercial prospective and optimal seed cocoon expediency in Daba and Jata ecoraces as F1 hybrids [R] and reciprocals. While, the trait specific positive heterosis in high pupal and high shell hybrids (assorted F1 hybrids) have application in segregating lines with desired traits and aggregating them in to needy one(s).
 
 
 
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