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POD SHATTERING RESISTANCE AND AGRONOMIC TRAITS IN F5 SEGREGATING POPULATIONS OF SOYBEAN.

Authors :
KRISNAWATI, A.
ADIE, M. M.
SOEGIANTO, A.
WALUYO, B.
KUSWANTO
Source :
SABRAO Journal of Breeding & Genetics. Sep2019, Vol. 51 Issue 3, p266-280. 15p.
Publication Year :
2019

Abstract

The soybean productivity can be increased by constant enhancement in the genetic yield potential of the genotypes and to reduce the yield losses due to different factors. The objectives of the present study were to screen and identify the F5 soybean promising lines through agronomic characters and pod shattering resistance. For soybean yield, the selection was made in the segregating populations through pedigree method which resulted in a total of 591 F5 populations and their four parental genotypes (Anjasmoro, G100H, Rajabasa, and Grobogan). Parental cultivar Anjasmoro is highly resistant to pod shattering, whereas the three other parental cultivars are high yielder but medium to susceptible in resistance to pod shattering. For shattering resistance, each soybean line was planted in 4.0 m single row, and then screened as per oven-dry method. Based on resistance to pod shattering, and the resistant gene source (found in cultivar Anjasmoro), 104 populations (16.40%) were selected out of 591 F5 lines and were classified as 'very resistant' to pod shattering. The pod length was one of the important contributors to the pod shattering resistance. New recombinations between Anjasmoro and other susceptible parental genotypes were able to have resistance to pod shattering and perform better for agronomic traits. Through simultaneous selection for pod shattering resistance and agronomic traits, the 30 lines were further selected based on maximum resistance to pod shattering and high grain yield. These selected F5 lines could be used in future breeding program for the development of soybean genotypes with genetic potential of pod shattering resistance and good yield in the tropical regions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10297073
Volume :
51
Issue :
3
Database :
Academic Search Index
Journal :
SABRAO Journal of Breeding & Genetics
Publication Type :
Academic Journal
Accession number :
139240750