2. Institutional Publications
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Item Response of sesamum variety Kayamkulam 1 to graded doses of phosphorus and potash in the red lom soils of Vellayani(Kerala Agricultural University, 1978) Sadanandan, N; Sasidhar, V KItem Comparative study of soil and foliar application of urea on sesamum(Kerala Agricultural University, 1975) Nair, N R; Santhakumari, R; Gopalakrishnan, RAn experiment to study the comparative effect of soil and foliar application of urea on yield of sesamum was conducted at the Oil Seed Research Station, Kayamkulam during 1971 - 72, Application of half the quantity of urea as basal and half the quantity through foliage 20 days after sowing has been found to be beneficial in increasing yield of sesamum. Spraying 3 .28 per cent urea 20 days after sowing has been observed to cause leaf scorching which reduced the yield considerably.Item 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 Melanagromyza azawii spencer (Agromyzidae: Diptera) - as a pest of sesamum(Kerala Agricultural University, 1980) Balakrishna Pillai, K; Thomas, M J; Nair, N R