GENETSKA VARIJABILNOST, ZNAČAJKE I GENETSKA RAZLIČITOST AZIJSKOG GRAHA (VIGNA RADIATE L. WILCZEK)

Genetic variability, correlation coefficient, path coefficient and genetic diversity were determined among fifty mungbean genotypes. There was a great deal of significant variation for all the characters among the genotypes. Considering genetic parameters high genotypic co-efficient of variation (GCV) was observed for no. of primary branches, seed yield per plant but no. of seed per pod and days to 80% maturity showed low GCV. In all the cases, phenotypic variances were higher than the genotypic variance. High heritability with low genetic advance in percent of mean was observed for days to 50% flowering suggesting non-additive gene effects for the expression of the character and selection for such trait might not be rewarding. High heritability with high genetic advance in percent of mean was observed for no. of primary branches per plant and a thousand seed weight indicating that this trait was under additive gene control and selection for genetic improvement for this trait would be effective. Seed yield per plant showed highest significant positive correlation with a thousand seed weight. It also has a significant positive correlation with seed per pod at genotypic level and a non-significant positive correlation with seed per pod at phenotypic level. Therefore, these traits could be important for the direct selection to improve yield. Total six clusters were formed for fifty genotypes. Considering group distance, cluster mean values, and other agronomic performances, inter genotypic crosses between G16 and G47; G16 and G13; G47 and G13: G21 and G19: G8 and G21, G21 and G35, G3 and G8, G3 and G35, G3 and G19, G8 and G19 might be suggested for future hybridization program.Među pedeset genotipova azijskog graha određeni su genetska varijabilnost, koeficijent korelacije, koeficijent putanje i genetska različitost. Među genotipovima bilo je mnogo značajnog variranja u svim značajkama. U genetskim parametrima primijećen je značajno visoki koeficijent raznolikosti (GLV) u broju primarnih grančica i prinosu sjemena po biljci, ali je broj sjemenki po mahuni dana do 80% zrelosti pokazao niski GLV. U svim slučajevima fenotipska variranja bila su viša nego genotipska variranja. Visoka nasljednost s niskim genetskim napretkom u postotku prosjeka primijećeni su za dane do 50% do cvatnje, što pretpostavlja djelovanje neaditivnog gena za izražavanje značajki pa selekcija za takve osebine možda nije korisna. Visoka nasljednost s visokim genetskim napretkom u postotku prosjeka primijećena je za broj primarnih grančica po biljci i težinu 1000 sjemenki, što upućuje da je ova osobina pod kontrolom aditivnog gena, te da bi selekcija za genetsko poboljšanje ove osobine bila djelotvorna. Prinos sjemena po biljci pokazao je najvišu značajnu pozitivnu korelaciju s težinom 1000 sjemenki. Isto tako ima pozitivnu korelaciju sa sjemenom po mahuni na razini fenotipa. Stoga bi ove značajke mogle biti važne za izravnu selekciju radi poboljšanja prinosa. Formirano je ukupno šest klastera za pedeset genotipova. S obzirom na grupnu udaljenost, srednju vrijednost klastera i druge agronomske rezultate/performanse može se preporučiti međugenetsko križanje za buduće programe hibridizacije između G16 i G47; G16 i G13; G47 i G13; G21 i G19, G8 i G21, G21 i G35, G3 i G8, G3 i G35, G3 i G19, G8 i G19