PATIL, DR. A.N.BORUDE, GOVARDHAN RAMKISANRAO.2018-07-252018-07-252017-08-19BORUDE GOVARDHAN RAMKISANRAO (2017) “Stability analysis for grain yield and it’s components of advanced breeding lines in mungbean (Vigna radiata (l.) Wilczek) ” Department of Agriculture Botany(Genetics and Plant Breeding) Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2017, print, xii, 80p. (Unpublished).http://krishikosh.egranth.ac.in/handle/1/5810061959Stability analysis for grain yield and its components of advanced breeding lines in mungbean (Vigna radiata L. Wilczek.)” was carried out at Pulses Research Unit, Dr.PDKV, Akola, with the objective to detect suitable genotype for different environments. The study includes 16 genotypes of mungbean collected from Pulses Research Unit, Dr.PDKV, Akola. Field experiment was conducted in Randomised Block Design with three replication in three environments comprising sowing dates viz., i) 7 June, ii) 22 June, iii) 7 July, 2016. The data from each of these three environments was collected on days to 50 percent flowering, days to maturity, plant height at maturity (cm), primary branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant, number of seeds per pod, pod length, 100 seed weight (g), seed yield per plant (g), seed yield per plot (g), harvest index and seed yield per ha. (g). Genotypes x Environment interaction were detected for the character plant height at maturity. The magnitude of linear component was more for the characters viz., days to maturity, plant height at maturity, number of cluster per plant, number of pods per plant, seed yield per plant and harvest index. While non linear component was of higher magnitude for days to 50% flowering, number of primary branches per plant, number of pod per cluster, number of seeds per pod, seed yield per plot and seed yield per ha. The genotype AKM-10-21 was found suitable for earliness in flowering having average stability, whereas the genotypes AKM-12-04, AKM-12-10, AKM-12-22 recorded below average stability and AKM-10-5, AKM-12-06 and AKM-12-28 recorded above average stability. The genotypes AKM-10-5, AKM-10-21, AKM-12-04, AKM-12-06, AKM-12-15 and AKM-12-22 showed earliness in maturity and average stability, whereas as AKM-12-28 showed above average stability. The genotypes AKM-10-5, AKM-10-11, AKM-12-12, AKM-12-22 and AKM-12-24 showed wider adaptability for the plant height (cm) over all environments, whereas the genotypes AKM-12-14, AKM-12-28 and BM 2003-2 (ch) recorded below average stability and AKM-12-10 and PKV AKM-4 (ch) recorded above average stability. For primary branches per plant, among all the genotypes, AKM-12-06 and PKV AKM-4 (ch) showed wider adaptability. Genotypes AKM-10-5 recorded below average stability and AKM-10-11, AKM-12-14 and BM 2003-2 (ch) recorded above average stability. Genotype AKM-12-06, showed the wider adaptability for pod clusters per plant. The genotypes AKM-12-12, AKM-12-23, PKV AKM-4 (ch) were found suitable for below average stability whereas AKM-12-04 and AKM-12-24 showed above average stability. Genotype AKM-12-14, AKM-12-22, AKM-12-28 and PKV AKM-4 (ch), showed the wider adaptability for number of pods per cluster. The genotype AKM-12-24 were found suitable for below average stability whereas AKM-12-15 and AKM-12-23 showed above average stability. Stability analysis for grain yield and its components of advanced breeding lines in mungbean (Vigna radiata L. Wilczek.)” was carried out at Pulses Research Unit, Dr.PDKV, Akola, with the objective to detect suitable genotype for different environments. The study includes 16 genotypes of mungbean collected from Pulses Research Unit, Dr.PDKV, Akola. Field experiment was conducted in Randomised Block Design with three replication in three environments comprising sowing dates viz., i) 7 June, ii) 22 June, iii) 7 July, 2016. The data from each of these three environments was collected on days to 50 percent flowering, days to maturity, plant height at maturity (cm), primary branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant, number of seeds per pod, pod length, 100 seed weight (g), seed yield per plant (g), seed yield per plot (g), harvest index and seed yield per ha. (g). Genotypes x Environment interaction were detected for the character plant height at maturity. The magnitude of linear component was more for the characters viz., days to maturity, plant height at maturity, number of cluster per plant, number of pods per plant, seed yield per plant and harvest index. While non linear component was of higher magnitude for days to 50% flowering, number of primary branches per plant, number of pod per cluster, number of seeds per pod, seed yield per plot and seed yield per ha. The genotype AKM-10-21 was found suitable for earliness in flowering having average stability, whereas the genotypes AKM-12-04, AKM-12-10, AKM-12-22 recorded below average stability and AKM-10-5, AKM-12-06 and AKM-12-28 recorded above average stability. The genotypes AKM-10-5, AKM-10-21, AKM-12-04, AKM-12-06, AKM-12-15 and AKM-12-22 showed earliness in maturity and average stability, whereas as AKM-12-28 showed above average stability. The genotypes AKM-10-5, AKM-10-11, AKM-12-12, AKM-12-22 and AKM-12-24 showed wider adaptability for the plant height (cm) over all environments, whereas the genotypes AKM-12-14, AKM-12-28 and BM 2003-2 (ch) recorded below average stability and AKM-12-10 and PKV AKM-4 (ch) recorded above average stability. For primary branches per plant, among all the genotypes, AKM-12-06 and PKV AKM-4 (ch) showed wider adaptability. Genotypes AKM-10-5 recorded below average stability and AKM-10-11, AKM-12-14 and BM 2003-2 (ch) recorded above average stability. Genotype AKM-12-06, showed the wider adaptability for pod clusters per plant. The genotypes AKM-12-12, AKM-12-23, PKV AKM-4 (ch) were found suitable for below average stability whereas AKM-12-04 and AKM-12-24 showed above average stability. Genotype AKM-12-14, AKM-12-22, AKM-12-28 and PKV AKM-4 (ch), showed the wider adaptability for number of pods per cluster. The genotype AKM-12-24 were found suitable for below average stability whereas AKM-12-15 and AKM-12-23 showed above average stability. The genotype AKM-12-24 was showed average stability over all types of environments for number of pods per plant whereas AKM-12-06, AKM-12-22, AKM-12-23 and PKV AKM-4 (ch) recorded below average stability. For pod length, among all the genotypes, AKM-10-11 and AKM-10-21 showed wider adaptability. Genotypes AKM-12-22 and BM 2003-2 (ch) recorded below average stability. Genotypes AKM-10-5 and BM 2003-2 (ch) showed wider adaptability for 100 seed weight (g), suggesting their stability for all types of environments, AKM-10-10 found stable for below average stability, whereas AKM-10-11 found stable for above average stability. Genotype AKM-10-11, AKM-12-12, AKM-12-22 and AKM-12-24 recorded average stability for seed yield per plant (g) and found suitable for all type of environment, while AKM-12-23 and AKM-12-28 showed above average stability and AKM-10-10, AKM-12-15, PKV AKM-4 (ch) and BM 2003-2 (ch) recorded below average stability. Genotypes AKM-10-11, AKM-12-14, AKM-12-22, AKM-12-23, PKV AKM-4 (ch) and BM 2003-2 (ch) showed below average stability for harvest index whereas AKM-10-5 showed above average stability. Genotypes AKM-12-23, AKM-12-24, AKM-12-28 and BM 2003-2 (ch) recorded average stability for seed yield per plot (g) and found suitable for all type of environment, while AKM-12-12 showed above average stability and PKV AKM-4 (ch) recorded below average stability.The present investigation in mungbean was undertaken with a view to detect genotype x environment (G x E) interaction for grain yield and its components of advanced breeding lines in mungbean and to identify genotypes suitable for different predictable environments. Sixteen genotypes were sown on three different sowing dates in Randomised Block Design, with three replications for measuring the stability of genotypes for different characters. The data was subjected to statistical analysis by following the approach given by Eberhart and Russell (1966). In general, genotypic differences were found significant for fourteen characters indicating the presence of genetic diversity in the genotypes and the character plant height at maturity. Linear component of G x E interaction was significant for the characters days to maturity, plant height at maturity, number of cluster per plant, number of pods per plant, seed yield per plant and harvest index. Whereas pooled deviation were found significant for characters viz., days to 50% flowering, number of primary branches per plant, number of pod per cluster, number of seeds per pod, seed yield per plot and seed yield per hectare. Estimates of environmental indicate (lj) suggested that E1 environment i.e. sowing on 7th June was found to be most favorable for the seed yield and important yield contributing characters. None of the genotype was found stable for all characters under study. The genotype viz., AKM-10-21 showed average stability for earliness in flowering. Genotypes AKM-10-5, AKM-10-21, AKM-12-04, AKM-12-06, AKM-12-15 and AKM-12-22 exhibited average stability for earliness in maturity, whereas, AKM-12-28 showed above average stability. AKM-10-5, AKM-10-11, AKM-12-12, AKM-12-22 and AKM-12-24 showed average stable performance for plant height at maturity (cm). For primary branches per plant among all the genotypes, AKM-12-06 and PKV AKM-4 (ch) showed wider adaptability. Genotype AKM-12-06, showed the wider adaptability for number of clusters per plant. Genotype AKM-12-14, AKM-12-22, AKM-12-28 and PKV AKM-4 (ch), showed the wider adaptability for number of pods per cluster. The genotype AKM-12-24 was showed average stability over all types of environments for number of pods per plant whereas AKM-12-06, AKM-12-22, AKM-12-23 and PKV AKM-4 (ch) recorded below average stability. For pod length, among all the genotypes, AKM-10-11 and AKM-10-21 showed wider adaptability. Genotypes AKM-10-5 and BM 2003-2 (ch) showed wider adaptability for 100 seed weight (g), suggesting their stability for all types of environments. Genotype AKM-10-11, AKM-12-12, AKM-12-22 and AKM-12-24 recorded average stability for seed yield per plant (g) and found suitable for all type of environment. Genotypes AKM-10-11, AKM-12-14, AKM-12-22, AKM-12-23, PKV AKM-4 (ch) and BM 2003-2 (ch) showed below average stability for harvest index whereas AKM- 10-5 showed above average stability. Genotypes AKM-12-23,AKM-12-24, AKM-12-28 and BM 2003-2 (ch) recorded average stability for seed yield per plot (g) and found suitable for all type of environment, while AKM-12-12 showed above average stability and PKV AKM-4 (ch) recorded below average stability. Above average stability was exhibited by very few genotypes. Most of the genotypes showed below average stability for most of the characters under study because of wide range of environments and unfavorable climatic conditions during the period of investigations.ennullThesis