Survey on genetic parameters, variability and trait association in tuberose ( Polianthes tuberosa L.).
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Date
2019
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Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University Varanasi .
Abstract
Floriculture is an emerging sector in India which is now attracting the view of an individual and also a great source for employment opportunities. Floriculture is concerned with production and marketing of various flowers, potted plants, nursery plants, bulbs, seed, corm and extraction of oils. Tuberose (Polianthes tuberosa L.) is one the important ornamental bulbous plant which is grown in India. Among various bulbous plant, tuberose is one of the important cut as well as loose flower grown in tropical part of the country for its long lasting spikes. The data on twenty one traits of twenty different cultivars of tuberose viz., days taken to bulb sprout (days), plant height at (cm), number of leaves/plant, length of longest leaf (cm), width of largest leaf (cm), internodal length of spike (cm), plant spread (cm), number of spikes/plant, spike length (cm), weight of spike (g), rachis length (cm), number of florets/plant, floret length (cm), floret diameter (cm), vase life of floret (days), length of big bulb (mm), diameter of big bulb (mm), weight of big bulb (g), length of small bulb (mm), diameter of small bulb (mm) and weight of small bulb (g) were conducted at Vegetable Research Farm, Department of Horticulture, Institute of Agricultural Sciences, BHU, Varanasi during 2018-19. Among the different cultivars, the maximum number of florets per plant was recorded in Bidhan Snigdha followed by the cultivars Prajwal, Sikkim Selection, Mexican Single, Vaibhav, Shringar, Phule Rajani, Single, Hyderabad Double and Swarna Rekha. While, the minimum florets per plant was recorded in cultivar STR-505. Hyderabad Double and Swarna Rekha were found to be statistically at par with Single. Phenotypic and Genotypic variance was found maximum for weight of bulb trait. Similarly, Phenotypic and Genotypic Coefficient of Variation was noted maximum for weight of spike
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Floriculture