Stability analysis for seed yield in mungbean, Vigna radiata L. Wilczek

Stability analysis for seed yield in mungbean, Vigna radiata L. Wilczek

2008

REP.MB-3211

Stability and wider adaptability of elite lines of mungbean (Vigna radiata) developed atNuclear Institute for Agriculture and Biology (NIAB), Jhang Road, Faisalabad, Pakistan were studied at four locations in Punjab province during 2004. The results indicated that genotype x environment interaction (G x E) was highly significant and was crossover in type. Mean seed yield performance of five environments revealed the superiority of genotype NM-1 by producing significant higher seed yield (1383 kg/ha) followed by NM 10-12-1 (1217 kg/ha). NM-1 and NM 10-12-1 responded better to favourable conditions because of high regression coefficient (b) value. Medium seed yield combined with high value of regression coefficient (b) in case of NM - 9800, NM 49-7, NM 20-11, NM 15-11 and NM - 92 (check) indicated that these genotypes were adapted to high performing environments while genotypes NM 15-5, NM 18-12 and NM 2 were found adaptable to low performing environments because of low regression coefficient (b) value. Negative regression values of M-6 and M-1 may be an indicator of better response to poor environment yet showing low seed yield. NM 20-4 had stable performance under different locations having above average seed yield, non-significant unit regression co-efficient alongwith the lowest and non-significant variance due to deviation from regression.

v.46(3):223-228, JOURNAL OF AGRICULTURAL RESEARCH (Pakistan)

Research > Published Articles