A TEXT BOOK ON HETEROSIS AND INBREEDING DEPRESSION STUDIES IN OKRA.

      Аннотация: A textbook on Heterosis and inbreeding depression studies in Okra describes about average heterosis, heterobeltiosis and standard heterosis over direct and their reciprocal crosses with inbreeding depression studies over direct and reciprocal crosses. It also included heritability and genetic advance was calculated. Besides this the maternal effect in crosses with regard to their heterosis and inbreeding depression were also studied. This study is more useful to develop a new variety which is more vigorous, more variations with low inbreeding depression. Parents in Diallel selective mating procedure. The estimates of heterosis and inbreeding depression also provide information about the type of gene action involved in expression of various quantitative traits. Selection of individuals is made on the basis of their phenotype to bring about improvement in the characters in desirable direction. Thus, the exploitation of hybrid vigour in okra has been recognized as important tool by the breeder for increasing the yield. The aim of present investigation is to spot out the best heterotic combinations giving high degree of useful heterosis with low inbreeding depression.

Ключевые слова: Heterosis, Inbreeding depression, OKRA