Heterosis and combining ability studies and relationship among fruit and seed characters in peanut

Dwivedi, S.L. and Thendapani, K. and Nigam, S.N. (1989) Heterosis and combining ability studies and relationship among fruit and seed characters in peanut. Peanut Science, 16 (1). pp. 14-20.

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F1 progenies from an 8 × 8 full diallel cross were studied for inheritance of fruit yield and fruit and seed characters. Substantial genetic variation was observed for most characters among parents and crosses. The presence of significantly heterotic crosses for several characters was an indication of genetic diversity among the parental lines. Whereas fruit and seed traits were controlled largely by GCA effects and fruits/plant and fruit weight/plant by SCA effects, both were equally important for the control of shelling percentage. Estimates of GCA for ICGV86564 was best for various fruit and seed traits. Other genotypes with good GCA were ICG2379 and ICG3043 for fruit weight/plant and ICGV87123 for shelling percentage. ICG4906, ICG7360, and ICGV86564 showed significant maternal effects for various traits. Significant maternal interaction effects were evident for more than 6 traits in 6 crosses. A positive association among fruit and seed traits, and of fruit weight/plant with fruit number and with fruit and seed length and width was thought promising for the selection of progenies with larger fruit and seed size coupled with increased yields

Item Type: Article
Author Affiliation: ICRISAT, 502 324 Patancheru, Andhra Pradesh, India
Subjects: Plant Protection > Pests
Crop Improvement > Seed Technology
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 24 Mar 2011 17:38
Last Modified: 24 Mar 2011 17:38
URI: http://eprints.icrisat.ac.in/id/eprint/1720

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