Abstract
Released in 1990 for rainy season (July-October) cultivation in zone I of India (Uttar Pradesh, Bihar, Rajasthan, Haryana and Punjab), the groundnut (Arachis hypogaea subsp. fastigiata var. vulgaris) cv. ICGS1 was originally derived from a single-plant selection made in a natural hybrid population of cv. Robut 33-1 (Kadiri 3). ICGS1 produced a 17% higher pod yield than the national standard JL24 in trials in India during 1981-84. It produced an average pod yield of 2350 kg/ha in spring season trials in the Punjab during 1982-85, a 93% increase over the standard, AK12-24. ICGS1 has decumbent 2 to decumbent 3 growth habit and matures in ~112 days in the rainy and 120 days in the spring season in India. It has a 70% average meat content. Seeds are tan in colour, with a 100-seed weight of 35 g, and contain 51% oil and 21% protein. Oleic : linoleic fatty acid ratio was 1.44. ICGS1 has field tolerance of bud necrosis disease (caused by tomato spotted wilt virus) and pod yield shows average recovery from midseason drought.
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