Browsing by Author "Nair, S S"

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    Bhadra (MO 4) A high yielding dwarf rice variety for Kuttanad
    (Kerala Agricultural University, 1981) Nair, N R; Nair, S S; Rema Bai, N
    IR-8 and Ptb-20 were crossed in 1967-68 at Rice Research Station Moncompu in order to evolve a high yielding variety possessing good grain quality attributes. Culture M-11-57-5-1 is a derivative of the above cross. It has recorded significantly higher yield than the popular high yielding varieties Jaya and Bharathy in the experiments in the Research Station, in State Seed Farm and in cultivators' fields It was also superior to two other varieties Sabari and Aswathi under Kuttanad conditions. Further, this possesses additional attributes like good tolerance to Brown plant hopper and desirable grain qualities. This culture was released by the variety Release Committee of the State as a 'variety under the name "Bhadra" (M 04).
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    Influence of climatic factors on populations of the brown plant hopper in Kuttanad, Kerala
    (Kerala Agricultural University, 1980) Nair, K P V; Mammen, K V; Pillai, K B; Nair, S S
    Studies carried out at the Rice Research Station, Moncompu, Kerala, during 1974-76 showed that in the Kuttanad rice tract, brown plant hopper Nilaparvata /ugens (Stal.) is present in the field throughout the year with a major population peak during January to March for themain crop (winter crop) and a minor peak during August to September for the second crop {autumn crop). Correlation studies revealed that the hopper population was significantly influenced by climatic factors. Rainfall in association with relative humidity and and maximum temperature played a decisive role in regulating the population of the insect.
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    New high yielding, brown plant hopper tolerant variety of rice
    (Kerala Agricultural University, 1978) Nair, N R; Nair, S S; Remabai, N
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    Phosphate and potash fertilisation of rice in the clay loam soils of Kuttanad
    (Kerala Agricultural University, 1979) Ittyavirah, P J; Nair, S S; Sankara Panicker, K; John, P S
    A field experiment was conducted at the Rice Research Station, Moncompu to assess whether rice crop can be raised without continuous application of phosphorus and potash in the clay loam soils of Kuttanad. The variety used wasTriveni. Results revealed that skipping of potash during the alternate seasons is not affecting the yield, end hence csn be adopted for economising ihe expenditure. Skipping of phosphorus is having depressing effect on yieid. Application of nitrogen alone without phosphorus and potash has shown significant reduction in yield, and the crop exhibited typical symptoms of phosphate deficiency.
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    Rate and time of application of nitrogen on dwarf indica rice under the agroclimate of Wynad
    (Kerala Agricultural University, 1972) Muralidharan, A; Kamalam, N; Nair, S S
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    Transplanting rice by broadcasting seedlings
    (Kerala Agricultural University, 1993) Abraham Varughese; Nair, S S; Pillai, K B