Inheritance studies of plant height, pod and seed attributes in F2 genertion of certain groundnut (arachis hypogaea l.) crosses.

ABSTRACT

Inheritance of plant height, pod length, pod width, seed length and seed width was studied in a set of crosses grown during rabi 2007-08. F2 phenotypic data for plant height was a good fit to a phenotypic ratio of 14641 and 121 respectively in two crosses studied indicating the involvement of more than two genes. Segregation of pod length in F2 generation of the cross ICGV 00350 x K 1340, was a good fit to a phenotypic ratio of 45 medium short 19 long pods while in the cross ICGV 00350 x TG 37A segregation of pod length was a good fit to a phenotypic ratio of 1 long 2 medium 1 short pod length. Segregation of pod width in the crosses ICGV 00350 x K 1340 and ICGV 00350 x TG 37A presented a good fit to a phenotypic ratio of 3 high width 1 medium width pods, while in the cross ICGV 00350 x Jyothi, F2 segregation data was a good fit to a phenotypic ratio of 1 high width 2 medium width 1 low width pods. F2 segregation of seed length in the cross ICGV 00350 x K 1340 was a good fit to a phenotypic ratio of 13 long medium 3 short. Segregation of seed width in F2 generation of the crosses K 1340 x TCGS 888 and K 1340 x Narayani was a good fit to a phenotypic ratio of 15 medium low 1 high width and 3 low 1 medium width seeds.