Eco-physiology, Nutritive value and Allelopathic effect of two Bauhinia species on Wheat varieties in Garhwal Himalaya
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Date
2015-08
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College of Forestry, Ranichauri Campus , V.C.S.G. Uttarakhand University of Horticulture and Forestry
Abstract
The present investigation was carried out during the year 2014-15 in the Research Block of Department of Forestry, V.C.S.G. Uttarakhand University of Horticulture and Forestry, Ranichauri, Tehri Garhwal, Uttarakhand. Seed germination study at diffrent constant temperature, seed storability, seed sown in nursery at diffrent depth, orienation, size and seed coat colour of Bauhinia retusa and Bauhinia variegata were evaluted in Randomized Block Design (RBD). Nutirutive value of both species were also analysed by using RBD. The allelopathy expriements was condected in laboratry by using CRD. The seed germination experiments were conducted with different constrant temperature (250, 200& 150C) and different type of storage container (Plastic cane, cotton bag & Polybag). In these extprements germination percent, radicle and plumule growth was calculaued. Seed were sown in nursery and thier germination percent, mean germination time, germination index and growth chracters and their biomass (i.e. shoot length, collar diameter, number of leaves/plant, root length, shoot dry weight, root dry weight, leaves dry weight, total dry weight and root/shoot dry weight) in field condition were masured. The nutritive value of collected leaves were analysed Total ash, Ether extract, Crude fiber, Crude protein, Nitrogen free extract, Organic matter and Total corbohydrate. In allelopathy expriemnts, diffrent leaves and bark extract concentartion were prepared to evuluate the effects of these extract on diffrent wheat varieties.
The result revealed that the optimum and uniform germination of both Bauhinia species was found at 250C constant temperature. The radicle and plumule growth were also recorded maximum at this temperature. Polybags are suitable for the storage of Bauhinia seeds. On an average, large size seed, yellow seed coat colour had given higher germination as well as good growth. Seeds of B. retusa were sown at horizontal position while B variegata were sown at upright position had more germination and produced vigour seedlings. Seeds of both Bauhinia species sown at different depth proclaimed that the seeds of B. retusa had more germination at 4 cm depth while produced teller seedlings at 2cm depth. Seeds of B. variegata were sown at 2 cm depth germinate better and produced vigorous seedling growth as well as biomass. Crude protein was found maximum in month of August and May for B. retusa and B. variegata, respectively. Among the test crops, VL 829 shows more resistance for bark and leaves extract. While bark extracts were more toxic as compared to the leaves extracts.
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