During casual observation of the varietal trial-plots at the Groundnut Research Station, Mainpuri in the year 1963-64 a plant with unhealthy appearance marked conspicuously by the absence of green healthy leaves and shorter stature among the taller healthy and bushy plants of the newly introduced variety C. 501 was spotted. It was found to bear only two thin pods with four healthy seeds. They were sown next year in a row by the side of C. 501. All the four seeds germinated and there was no appreciable difference, among the seedlings upto two weeks. Thereafter, mosaic mottling in upper leaves of three seedlings appeared gradually, while the fourth plant was quite normal and similar to the plants of C. 501. As the age advanced, the mottled plants became more distinct by their small, yellowish green and mottled appearance of leaves as also dwarf nature. The flowers, pegs, pods, and the seeds did not differ much in these three plants. The mottled plants were, however, found to bear chaffy pods having shrunken seeds not found in the normal plant. On maturity which was similar in all the four plants as also in C. 501, one of the three abnormal plants did not yield healthy seeds. The rest two plants were also found to give less yield than the normal plant. The normal plant was, however, quite similar to C. 501 in all respect.
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