Browsing by Author "Mohamed Kunju, U"
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Item Effect of CCC (2-chloroethyl trimethyl ammonium chloride) on growth and yield of sweet potato variety H 42(Kerala Agricultural University, 1976) Nambiar, I P S; Sadanandan, N; Mohamed Kunju, UItem Effect of CCC on the starch content of sweet potato tuber(Kerala Agricultural University, 1977) Nambiar, I P S; Sadanandan, N; Mohamed Kunju, UItem Effect of different maize-legume mixtures on the quality of forage under graded levels of nutrition(Kerala Agricultural University, 1984) Mercy George; Mohamed Kunju, UItem Effect of different plant densities on sunflower varieties in red loam soils(Kerala Agricultural University, 1978) Salam, M A; Sadanandan, N; Nair, K P M; Mohamed Kunju, UAn experiment was conducted at the College of Agriculture, Vellayani to study the effect of different spacings on the yield of sunflower varieties. The results revealed that closer spacing decreased the head diameter and number of seeds per head, but significantly increased the total yield of seed. Closer spacing of 30x20 cm gave a maximum yield of 2163.1 kg seeds per hectare. The varieties did not show any difference in yield potential.Item Effect of graded doses of nitrogen on growth and yield of sweet potato variety, H.42 in red-loam soils(Kerala Agricultural University, 1976) Nambiar, I P S; Sadanandan, N; Mohamed Kunju, UA field experiment was conducted in the red-loam soils of Agricultural College Farm, Vellayani during 1974-1975 to study the effect of graded doses of nitrogen (50, 75 and 100 kg/ha) on the growth and yield of sweet potato, variety H. 42. The length of vine, weight of vine, and length of individual tuber were not significantly influenced by levels of nitrogen whereas the number of tubers per plant was significantly increased due to incremental doses of this nutrient and the response was linear. The yield of tuber was increased progressively with incremental doses of nitrogen. Nitrogen at 100 kg. /ha recorded an yield of 104.92 quintals of tuber per hectare while 50 kg. N/ha gave only an average yield of 81.43 quintals.Item Effect of graded levels of phosphorus and potassium on nodulation of two varieties of groundnut (Arachis hypogaea L.)(Kerala Agricultural University, 1980) Purushothaman Nair, N; Sadanandan, N; Nair, K P M; Mohamed Kunju, UItem Effect of mulching and size of seed materials on the tuber yield and quality of colocasia [Colocasia Esculent.A (L.) Schott](Kerala Agricultural University, 1981) Kamalam Joseph; Mohamed Kunju, UItem Effect of mulching on the bulk density and water stable aggregates of soil(Kerala Agricultural University, 1982) Kamalam Joseph; Mohamed Kunju, UItem Influence of Irrigation on germination, growth and yield of sesamum(Department of Agronomy, College of Agriculture, Vellayani, 1985) Thomas Mathew; Mohamed Kunju, UA field study was undertaken at the Rice Research Station, Kayamkulam, during the third crop season of 1983-84 to find out the influence of irrigation on germination, growth and yield of sesamum, with eleven main plot treatments as time of sowing and three sub plot treatments as frequency of irrigation. There were 33 different treatment combinations The study revealed that the optimum soil moisture for maximum germination of sesamum seed is 12.72 per cent. Moisture contents above or below this adversely affect the germination percentage. Optimum soil moisture for germination could be achieved by irrigating the plots to field capacity and sowing one day after the irrigation. Dry matter production, number of seeds per capsule, distribution of dry matter in capsule, seed yield, oil content, oil yield and shelling percentage were highest in the treatment where sowing was done one day after the initial irrigation. Maximum uptake of N, P and K was also observed in this treatment. One irrigation at the vegetative phase or two irrigations one at the vegetative and the other at the reproductive stages have favourably influenced the growth characters like plant height, number of leaves, number of branches and nodes, leaf area, dry matter production, number of capsules per plant, capsule weight per plant, number of seeds per capsule, seed weight per plant and seed yield per ha. The oil content, oil yield and the uptake of N, P and K were also maximum in the above Irrigation treatments. The study revealed that irrigating the plot to field capacity and sowing the seeds one day after irrigation has resulted in obtaining maximum germination and optimum plant density. Similarly irrigation during the growth phases have also increased the seed yield. Maximum seed yield of 859 kg/ha. was produced by sowing the seeds one day after Initial irrigation followed by giving one irrigation each during the vegetative and reproductive phases.Item Influence of irrigation on germination, growth and yield of sesamum(Department of Agronomy, College of Agriculture, Vellayani, 1985) Thomas Mathew; Mohamed Kunju, UA field study was undertaken at the Rice Research Station, Kayamkulam, during the third crop season of 1983-84 to find out the influence of irrigation on germination, growth and yield of sesamum, with eleven main plot treatments as time of sowing and three sub plot treatments as frequency of irrigation. There were 33 different treatment combinations. The study revealed that the optimum soil moisture for maximum germination of sesamum seed is 12.72 per cent. Moisture contents above or below this adversely affect the germination percentage. Optimum soil moisture for germination could be achieved by irrigating the plots to field capacity and sowing one day after the irrigation. Pry matter production, number of seeds per capsule, distribution of dry matter in capsule, seed yield, oil content, oil yield and shelling percentage were highest in the treatment where sowing was done one day after the initial irrigation. Maximum uptake of N, P and K was also observed in this treatment. One irrigation at the vegetative phase or two irrigations one at the vegetative and the other at the reproductive stages have favourably influenced the growth characters like plant height, number of leaves, number of branches and nodes, leaf area, dry matter production, . number of capsules per plant, capsule weight per plant, number of seeds per capsule, seed weight per plant and seed yield per ha. The oil content, oil yield and the uptake of N, P and K were also maximum in the above Irrigation treatments. The study revealed that irrigating the plot to field capacity and sowing the seeds one day after irrigation has resulted in obtaining maximum germination and optimum plant density. Similarly irrigation during the growth phases have also increased the seed yield. Maximum seed yield of 859 kg/ha. was produced by sowing the seeds one day after Initial irrigation followed by giving one irrigation each during the vegetative and reproductive phases.Item Influence of levels of nitrogen, methods of application and plant population on the performance of the high yielding rice variety Sabari(Department of Agronomy, College of Agriculture, Vellayani, 1989) Mohamed Kunju, U; Sadanandan, NItem Note on optimum and economic doses of nitrogen and nitrogen utilisation efficiency of sunflower(Kerala Agricultural University, 1978) Salam, M A; Sadanandan, N; Mohamed Kunju, UItem NPK requirement of short duration tapioca varieties grown in the uplands of Kuttanad(Department of Agronomy, College of Agriculture, Vellayani, 1986) Sunnykutty M Kurien; Mohamed Kunju, UItem Performance of cowpea varieties under varying levels of phosphorus in red-loam soils(Kerala Agricultural University, 1976) Mohamed Kunju, U; Ramachandran Nair, V; Manikantan Nair, P; Sadanandan, NItem Performance of sunflower varieties under graded doses of nitrogen in redloam soils of Kerala(Kerala Agricultural University, 1978) Salam, M A; Sadanandan, N; Nair, K P M; Mohamed Kunju, UAn experiment using three varieties of sunflower and three levels of nitrogen was conducted at the College of Agriculture, Vellayani during 1974 in order to assess the performance of sunflower varieties under different levels of nitrogen. The varieties tried were EC.68413, EC. 6841 4 and Sunrise selection. The levels of nitrogen were 40 kg, 90 kg and 120 kg per hectare. The results indicated that there was no significant difference among the varieties in plant height, total dry matter production, leaf area index net assimilation rate, lodging, head diameter, number of seeds per head, percentage of filled grains per head, 1000 seed weight and yield of seeds. But, there was significant difference in the yield of atover and oil and protein contents of seeds among them. The effects of incremental doses of nitrogen were significant in head diameter and yield of seeds. Maximum yield of 1887.1 kg seeds per hectare was obtained at 80 kg nitrogen per hectare.Item Protein content of paddy grains as influenced by slow release nitrogen fertilisers(Kerala Agricultural University, 1977) Oommen, M; Sadanandan, N; Mohamed Kunju, UItem Rainfall distribution pattern at Vellayani(Kerala Agricultural University, 1975) Ramachandran Nair, V; Mohamed Kunju, UItem Response of cowpea (Vigna unguiculata (L.) Walp.) to water management practices and phosphorus nutrition(Kerala Agricultural University, 1989) Balakumaran, K N; Mohamed Kunju, UItem Spatial arrangement and nutrient management for maize-fodder cowpea intercropping in rice fallows(Department of Agronomy, College of Agriculture, Vellayani, 1989) Geetha Kumary, S; Mohamed Kunju, UAn investigation was carried out during the summer season of 1987-88 in the Instructional Farm attached to the College of Agriculture, Vellayani to determine the best crop arrangement for a grain maize + fodder cowpea intercropping in summer rice fallows under different fertility levels. The different crop arrangements tried were pure crop of maize at normal row arrangement, maize at normal row arrangement + two rows of cowpea in between the maize, pure crop of maize at paired row arrangement , maize at paired row arrangement + three rows of cowpea in the interpair spaces and pure crop of cowpea. The fertilizer levels tried were 100, 75 and 50 per cent of the recommended levels of nutrients of maize , cowpea and maize + cowpea, depending on crop arrangement and the area occupied by each crop. The experiment was laid out in split plot design with three replications. The crop arrangements were allotted to main plots and the fertility levels to the subplots.Item Studies on the effect of N, P and K fertilization on the growth and yield of chilli (Capsicum annuum, L.)in red loam soils of Kerala(Division of Agronomy, Agricultural college & reseach institute Vellayani, Trivandrum, 1968) Mohamed Kunju, U; George, C M