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Permanent URI for this collectionhttp://localhost:4000/handle/123456789/1975
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Item Effect of ethrel (2 chloro-ethyl phosphonic acid) on growth and yield of bhendi (Abelmoschus Esculentus L Moench)(Kerala Agricultural University, 1979) Sreekumar, S G; Ramachandran Nair, N; Jayachandran, B K; Mary K GeorgeItem Mutagenic efficiency of gamma rays in sesamum(Kerala Agricultural University, 1977) Ramachandran Nair, N; Gopinathan Nair, VSeeds of sesamum Cv. Kayamkulam-l were irradiated with gamma rays at doses 5 to 30 krad. The effects of irradiation in the M and M, generations were studied. The doses employed had no effect on germination, seedling emergence and plant height in the M, generation. With increase in the dose there was a steady decrease in survival and pollen fertility. The frequency of chlorophyll mutation estimated on M, plant basis was higher than the estimate on !V plant basis The mutation spectrum included xantha (yellow) and chlorina (yellow green). Segregation ratio was maximum at 10 krad and minimum at 25 krad. Mutagenic effectiveness and efficiency were high at the lower doses and decreased with increasing doses. These observations indicate that gamma rays at low fo medium doses can be successfully employed for inducing mutations in sesamum.Item Gamma ray induced viable mutations in sesamum(Kerala Agricultural University, 1978) Ramachandran Nair, N; Gopinathan Nair, VItem Breaking seed dormancy in pottavaga (Albyzzia Stipulata, Boivin)(Kerala Agricultural University, 1978) Gopinathan Nair, N; Ramachandran Nair, N; Sreekumar, S GItem Seed germination in palmarosa (Cymbopogan martini Staff var. Mopia)(Kerala Agricultural University, 1981) Ramachandran Nair, N; Gopinathan Nair, NItem Makaram and Kumbham - Two improved rice varieties for the Cherady tracts of Kerala(Kerala Agricultural University, Vellanikara, 2003) Sverup, John; Mohanakumaran, P D; Vijayagopal, N; Kunjamma P, Mathew; Vasanthakumar, K; Ramachandran Nair, N; Alexander, D