Ramakrishnan, MGopinathan Nair, VKAU2019-01-182019-01-181994Journal of Tropical Agriculture, 32(1), 1-6.http://krishikosh.egranth.ac.in/handle/1/5810091300Reali/ing the difficulty in determining the time of optimum maturity in groundnut, a maturity index was formulated. Recombination breeding with high productive and extra early types was undertaken. Combining ability was estimated by the line \ tester method. Among lines, Chico was the best combiner for earliness. Among testers, TMV 2 was the best for productivity. High yielding extra early recombinants were selected from the ?2 populations for further testing and selection.ennullArticle