Indian Journal of Genetics and Plant Breeding (The)
Year : 1981, Volume : 41, Issue : 1
First page : ( 66) Last page : ( 74)
Print ISSN : 0019-5200. Online ISSN : 0975-6906.

Evaluation of heterosis through combining ability in pearl millet II. multiple grosses

Arunaghalam V., Reddy B. B.

Indian Agricultural Research Institute, Regional Station, Rajendranagar, Hyderabad-500 030, India

Summary

Using parents and single crosses classified as high or low general combiners, multiple crosses were made in triallel (TLL), 3-way line × tester (3 LT), 4- way diallel (4 DL) and 4-way line × tester (4 LT) designs in pearl millet. It was shown that H × L single crosses provided the best base to produce heterotic multiple crosses in all the systems. Several genotypes were found to provide more heterosis in multiple crosses when used as grandparents than in single crosses. A high frequency of heterotic crosses had non-significant SGA for all component characters and yield in 4 LT. Geographic diversity when coupled with combining ability diversity was found to produce high heterosis which was, populations were discussed.

Top