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1996 - 199922000 - 20012

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Author: search.filters.author.Sujatha, V S

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    Isoenzyme variation in different plant parts and at different stages of leaf development in Piper nigrum L.
    (Kerala Agricultural University, 1996) Abraham Sebastian; Sujatha, V S
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    Isoenzyme variation and species relationship in genus piper
    (Kerala Agricultural University, 1996) Abraham Sebastian; Sujatha, V S; Nybe, E V; Sreekandan Nair, G; Augustine, A
    Eleven species of Piper including Piper rugrum were studied for variations in isoenzymes of three enzymes viz., peroxidase, esterase and glutaraate oxaloacetate transaminase. On grouping based on isoenzyme similarity, P. nigrum Linn.. P. pseudonigrum Velayudhan and Amalraj, P. bababudani Rahirnan and P. galeatum DC formed one group while P. argyrophyllum Miq. and P. attenuatum Buch-Hara constituted the second group and P. chaha Hunter, P. hapnium Miq. and P. colubrinum Link emerged as the third group. P. betle Linn, and P. longum Linn, showed their distinctness from the rest of the species. Least similarity was observed between P. colubrinum on one side and P. pseudonigrum and P. bahabudam on the other side.
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    Isoenzyme variation in Piper nigrum L.
    (Kerala Agricultural University, 2000) Abraham Sebastian; Sujatha, V S; Nybe, E V; Sreekandan Nair, G; Mallika, V K
    Isoenzyme patterns of 26 varieties of P. nigrum were compared for three enzymes viz., csterase, peroxidase and glutamate oxaloacetate transaminase. Similarity among the varieties ranged from 0.40 1.00. Wide variation was observed among the cultivated types of P. iiignini for the three enzymes analysed.
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    Survey, evaluation and identification of black pepper cultivars
    (Kerala Agricultural University, Vellanikara, 2001) Prasannakumari Amma, S; Nybe, E V; Sujatha, V S; Prabhakaran, P V
    A survey was conducted in the traditional pepper growing tracts of Thodupuzha and Meenachil taluks of Kerala during 1995. Thirty holdings per each taluk were selected. The pepper cultivars grown in these selected homesteads were evaluated for yield and yield contributing characters for the two years. Results showed that in Thodupuzha taluk, Neelamundi, Kaniyakkadan and Mundi performed best. In Meenachil taluk, Karimunda was the best during the first year. However, during 1997, Jeerakamunda was the highest yielder. Karimunda, the most popular cultivar in these areas recorded relatively poor performance