Author(s):

Roshin Mariam George, Beena Thomas and Amrutha Unni M

Abstract: Ten genotypes of Phalaenopsis having good market value and cut flower qualities were evaluated using completely randomized design. The analysis of variance revealed that significant difference exists among the parental genotypes with respect to the majority of biometric characters studied. Vegetative characters such as leaf area, plant height, number of leaves and leaf width exhibited the highest estimates of variance at both genotypic and phenotypic levels. Among the floral traits, length of inflorescence, number of flowers per inflorescence, vase life, internodal length of the peduncle and days to first flower opening from inflorescence emergence showed the highest genotypic and phenotypic variances. Floral characters like length of inflorescence, flower longevity on the plant, days to first flower opening from inflorescence emergence, length of flower, width of the flower and internodal length of peduncle as well as vegetative characters like plant height, leaf width and leaf area showed high heritability. High heritability (>70%) combined with high genetic advance (>20%) was exhibited by majority of the characters under study indicating additive gene action for these characters and it provides a scope for further improvement of these traits in advance generations.

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