Green Farming
Bi-monthly Journal
NAAS RATING : 4.38
UGC Approved Jr.No. : 45500
ISSN 0974-0775
International Journal of Applied Agricultural & Horticultural Sciences
  • 19 September, 2017
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Innovative Eco-Safe Agri-Horticulture Technology for Greener Environment, Global Energy & Food Security.
Vol. 8 (4) : July-August 2017 issue
Green Farming Vol. 8 (4) : 784-789 ; July-August, 2017
Genetic variability and character association among different methods of selection in segregating generation of rice cross (Oryza sativa L.)
A.K. CHOUDHARYa1*, Z.A. HAIDERb2, K. PRASADb3, M. CHAKARBORTYb4 and NIRAJ KUMARb5
aBhola Paswan Shastri Agricultural College, Purnea City, Purnea - 854 302 (Bihar)
bDepartment of Plant Breeding & Genetics, Birsa Agricultural University, Kanke - 834 006, Ranchi (Jharkhand)
Designation :  
1Assistant Professor-cum-Junior Scientist *(mr.akch@rediffmail.com),
2,4Chief Scientist, 3,5Junior Scientist-cum-Assistant Professor
Subject : Crop genetics & Plant breeding
Paper No. : P-6485
Total Pages : 6
Received : 24 January 2017
Revised accepted : 30 May 2017
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Citation :

A.K. CHOUDHARY, Z.A. HAIDER, K. PRASAD, M. CHAKARBORTY and NIRAJ KUMAR. 2017. Genetic variability and character association among different methods of selection in segregating generation of rice cross (Oryza sativa L.). Green FarmingĀ  Vol. 8 (4) : 784-789 ; July-August, 2017

ABSTRACT
One thousand F2 progeny from the cross BG 102/Rashmi (F1) Commercial Pvt. hybrid were randomly tagged out of which 192 plants were selected and divided into four groups viz., high selection indices, low selection indices, high yielder, and low yielder so as to create 5 % selection intensity in each group. High GCV and PCV have been observed in HSI and LSI for all studied characters existence of wide spectrum of variability for this trait and offer greater opportunities for desired trait through phenotypic selection. HSI and LSI selection methods may be effective for early generation selection while in rest of the traits shown high h2 coupled with low to moderate GA was recorded the expression of gene may be influence due to genotypic as well environmental effect. In Ist date of DS, forth method of selection (LSI), for DFF exhibited positive and significant correlation with PH, PPP, GPP and Tw were recorded positive and significant correlation with GYP plant comprising its high and positive direct effect. Indicating that under normal DS condition in Ist date of planting under forth (LSI) method of selection for DFF may be considered as a important trait for improving the yield potential of rice. In 2nd date of DS, forth (LSI) method of selection for LSI, DFF, PH and GPP had sown positive and significant correlation with GYP plant having its high and positive direct effect. Under LSI selection method in late sown DS, DFF, PH and GPP may be considered as an important character during course of selection for enhancing the yield of rice.
Key words :
Genetic advance, Heritability, High selection Indices (HSI), Low selection Indices (LSI), Rice.