Browsing by Author "Philip Varghese"

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    Clinical evaluation of the comparative effect of xylazine and xylazine-ketamine premedication in thiopentone anaesthesia in dogs
    (Department of Veterinery Surgery and Radiology, College of Veterinary and Animal Sciences, Mannuthy, 2006) Philip Varghese; Rajankutty, K
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    Genetic variability and heritability studies in snakegourd (Trichosanthes Anguina L.)
    (Kerala Agricultural University, 1993) Philip Varghese; Rajan, S
    Genetic variability and heri lability parameters were studied in48snakegourd accessions. The genotypic coefficient of variation was high for f r u i t i ng nodes on main vine, male flowers/plant, sex ratio, fruits/plant and crude fibre content. The heritabilily was high for total duration of the crop and crude protein content of the f r u i t . Male flowers/plant, sex ratio, fruiting nodes on main vine and fruits/plant exhibited high heritability and high genetic gain indicating additive gene action. Yield/plant, fruit length, total crop duration, days to first harvest and days to first male flower anthesis exhibited high heritability and low genetic gain which indicate nonadditive gene action including epistasis and dominance pointing towards heterosis breeding for high yields and earliness.
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    Heterosis in snakegourd (Trichosanthes anguina L.)
    (Department of Olericulture, College of Horticulture, Vellanikkara, 1991) Philip Varghese; Rajan, S
    The present investigation "Heterosis in snakegourd" was conducted at the College of Horticulture during 1988-1990. Assessment of genetic variability showed significant differences of 25 characters in 48 snakegourd genotypes. The highest phenotypic coefficient of variation was observed for fruiting nodes on main vine, male flowers/plant, sex ratio and fruits/plant. The pcv was lowest for total crop duration. The gcv resulting in high heritability was high for majority of the characters. High heritability coupled with high genetic gain was noticed for male flowers/plant, sex ratio and fruiting nodes on main vine. The 48 genotypes were grouped into 10 clusters. The combing ability analysis revealed significant gca variances for all characters. The sca variances were also significant for all characters. The sca variances were also significant for all characters except for total crop duration, sex ratio and fruits/plant.
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    Heterosis of growth characters and earliness in Snakegourd (Trichosanthes anguina L.)
    (Kerala Agricultural University, 1993) Philip Varghese; Rajan, S
    Heterosis of growth characters and earliness in snakegourd was worked out in a 13 x 13 analysis. Heterobeltiosis and standard heterosis were found for main vine length, primary branches per plant, days to first male flower anthesis, days to first female flower opening, fruiting nodes on main vine, days to fruit maturity and days to first f r u i t picking maturity. Days to first female flower opening showed high heterobeltiosis in parental combinationsTA 102xTA 41, TA 77xTA 41 and TA87xTA30. The crosses TA 77 xTA 55, TA 89 xTA 19,TA89xTA 102andTA77xTA 99 were highly heterobelliotic for days to first fruit pickig maturity and in crosses TA 100 x TA 82, TA 77 x TA 99, TA 77 x TA 41 and TA 30 x TA 99, standard helerosis was high for this trait.