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International Journal of Applied Agricultural & Horticultural Sciences
  • 28 April, 2024
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Frequency : Bimonthly
Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
E-ISSN : 2582-4198
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Vol. 4 (3) : May-June 2013 issue
Green Farming Vol. 4 (3) : 253-257 (May-June, 2013)
Genetic analysis of quantitative traits over environments in upland rice (Oryza sativa L.)
VIPUL P. PATEL1*, VINAY S. PATEL2 and A.R. PATHAK3
Regional Rice Research Station, Navsari Agricultural University, Unai Road, Vyara - 394 650 (Gujarat)
Designation :  
Subject : Agronomy and Crop Production
Paper No. :
Total Pages : 5
Received : 07 August 2012
Revised accepted : 14 May 2013
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Citation :

VIPUL P. PATEL, VINAY S. PATEL and A.R. PATHAK. 2013. Genetic analysis of quantitative traits over environments in upland rice (Oryza sativa L.). Green Farming Vol. 4 (3) : 253-257 ; May-June, 2013

ABSTRACT
Fifty- two crosses generated by crossing four females and 13 males were studied alongwith the parents for combining ability for thirteen traits over the locations. The estimates of gca variances were higher than those of sca variances for days to 50% flowering, days to maturity, plant height, panicle length, 100-grain weight and straw yield per plant which indicated preponderance of additive gene action in the inheritance for these characters. The estimates of sca variances were higher than those of gca variances for productive tillers per plant, grains per panicle, grain length, grain breadth, grain length to grain breadth ratio, grain yield per plant and harvest index suggesting predominance of non-additive gene action in the inheritance of these traits. Females Sathi 34-36 and GR 5 were good general combiner for grain yield per plant and various yield contributing traits. GR 8 and Kalinga III were good general combiner for early flowering and maturity. Among 13 males Heera emerged out best general combiner for grains per panicle. Males RR 354-1, Anjali, GR 9, Hara and Ashoka 228 exhibited significant positive gca effect for straw yield per plant. Crosses Sathi 34-36 x Chavariyu, Sathi 34-36 x Hara, GR 8 x RR 354-1 and Sathi 34-36 x Heera were identified as potential one for grain yield per plant and desired traits based on sca effects.
Key words :
Combining ability, GCA & SCA variances, Line x Tester, Quantitative traits, Upland rice.