Identification of potential parental lines for single, three-way and double crosses in maize (Zea mays L.)


A series of single, three way and double cross hybrids in maize were developed by involving seven inbred lines through half diallel and were evaluated along with private/public hybrids for yield and yield contributing traits in a balanced lattice design at three environments during kharif 2015. Combining ability studies revealed that good
general combiners identified through diallel had significant and desirable 1-line general effects of first kind and second kind for majority of the yield and yield contributing traits in triallel and 1-line general effects in desirable direction for all the studied traits in quadriallel. Good specific combiners that were involved as grandparents / half parents had significant 2-line and 3-line interaction effects in triallel and 2-line, 3-line and 4-line interaction effects in quadriallel for majority of the yield and yield contributing traits. Good specific combiners from diallel viz., BML-
51 × BML-6 as half parents in three-way crosses along with, BML-51 × BML-7 as half parents in double crosses, BML-51 × BML-14, BML-32 × BML-13 and BML-32 × BML-6 as half or grandparents in three way and double crosses produced high yielding three way and double cross hybrids. From the present investigation it is deduced that the good general and specific combiners identified through diallel analysis would certainly contribute to the development of potential climate resilient multiple cross hybrids and save valuable resources and precious time.


Maize, 1- line general, 2- line, 3- line, 4- line interaction effects

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Maydica - A journal devoted to maize and allied species

ISSN: 2279-8013