Popping volume and grain yield in diallel set of popcorn inbred lines

Abstract

Popping volume and yield are traits caused by several heredity factors. It is difficult to obtain superior genotypes for both traits but it is possible to develop genotypes with good popping volume and satisfactory yield. The hybrid ZPPL2 x ZPPL5 was superior in yield, heterosis and SCA for both yield and popping volume. As inbred ZPPL4 in all combinations has a good value for popping volume could be concluded that this inbred may be used as parent in further crosses. Analysis of variance of the combining ability indicating significant SCA effect for grain yield, and significant both GCA and SCA effects for popping volume. Therefore it can be stated that yield is influenced by non-additive and popping volume by both additive and non- additive gene effects. Analysis of variance of genetic components for popping volume indicates that the additive as well as dominant components significantly affected the inheritance of this trait in popcorn. The objective of this study was to evaluate heteorsis and combing ability for grain yield and popping volume in dialalel set of six maize inbred lines.

Zapremina kokičavosti i prinos su svojstva pod uticajem nekoliko naslednih faktora. Teško je dobiti superiorne genotipove za oba svojstva ali je moguće dobiti genotip sa dobrom zapreminom kokičavosti i zadovoljavajućim prinosom. Hibrid ZPPL2 x ZPPL5 je superioran za prinos, heterozis i PKS za prinos i zapreminu kokičavosti. Kako linija ZPPL4 u svim kombinacijama ima dobre vrednosti za zapreminu kokičavosti može se zaključiti da ova linija se može koristiti kao roditelj u budućim ukrštanjima. Analiza varijanse za kombinacionu sposobnost ukazuje na značajan PKS efekat za prinos zrna, značajan PKS i OKS efekat za zapreminu kokičavosti. Prinos je pod uticajem neaditivnih a zapremina kokičavosti i aditivnih i neaditivnih gena. Analiza varijanse genetičkih komponenti za zapreminu kokičavosti ukazuje da aditivne kao i dominatne komponente značajno utiču na nasleđivanje ovog svojstva kod kokičara. Cilj ovih istraživanja bio je ispitivanje heteorzisa i kombinacionih sposobnosti za prinos zrna i zapreminu kokičavosti u dialelnom setu šest linija kukuruza.