INHERITANCE STUDIES OF PLANT HEIGHT, POD AND SEED ATTRIBUTES IN F2 GENERTION OF CERTAIN GROUNDNUT (ARACHIS HYPOGAEA L.) CROSSES

摘要

Inheritance of plant height, pod length, pod width, seed length and seed width was studiedin a set of crosses grown during rabi2007-08. F2phenotypic data for plant height was a good fit to aphenotypic ratio of 1:4:6:4:1 and 1:2:1 respectively in two crosses studied indicating the involvement ofmore than two genes. Segregation of pod length in F2generation of the cross ICGV 00350 x K 1340, wasa good fit to a phenotypic ratio of 45 medium short : 19 long pods while in the cross ICGV 00350 x TG37A segregation of pod length was a good fit to a phenotypic ratio of 1 long : 2 medium : 1 short podlength. Segregation of pod width in the crosses ICGV 00350 x K 1340 and ICGV 00350 x TG 37Apresented a good fit to a phenotypic ratio of 3 high width: 1 medium width pods, while in the cross ICGV00350 x Jyothi, F2segregation data was a good fit to a phenotypic ratio of 1 high width: 2 medium width:1 low width pods. F2segregation of seed length in the cross ICGV 00350 x K 1340 was a good fit to aphenotypic ratio of 13 long medium: 3 short. Segregation of seed width in F2generation of the crosses K1340 x TCGS 888 and K 1340 x Narayani was a good fit to a phenotypic ratio of 15 medium low : 1 highwidth and 3 low : 1 medium width seeds