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Chand, Romesh
- Effect of Pollination Methods on Seed Yield and Colchicine Content in Glory Lilly (Gloriosa superba L.)
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Indian Forester, Vol 134, No 4 (2008), Pagination: 549-553Abstract
The medicinal properties of Gloriosa superba, a perennial herb reproducing both by seed and tuber, are due to presence of colchicine in its seeds and tubers. The weak stemmed aerial part is annual which dries off after setting seed. Harvesting its tubers for medicament leads to destructive harvesting. Using seeds for drug purposes (with higher colchicines content as compared to tuber) has the advantage of annual harvest and also avoiding destructive harvesting. However, seed production under natural condition is quite low and uneconomical. It has been found that seed setting in the species is pollen limited. Results obtained have revealed that although the species is both self as well as cross compatible but seed setting is significantly influenced by pollination methods used. Controlled selfing between different flowers on the same plant have given significantly higher seed setting as compared to other methods tried. There was considerable increase in number of seeds produced per capsule (42.26) and dry seed weight per plant (1.13 g). It is suggested that for increasing seed set different flowers on the same plant should be selfed (Gnetonogamy) at stigma receptive stage.Keywords
Gloriosa superba, Pollination, Fruit Set, Seed Set, Colchicine
- Enhancing Rootstock Biomass Production in Picrorhiza kurroa through Growth Regulator Treatment
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Indian Forester, Vol 133, No 8 (2007), Pagination: 1091-1096Abstract
Effect of different concentrations and dipping time periods of growth regulators IAA, IBA, NAA and GA3 on ischolar_maining, field survival and ischolar_mainstock biomass yield in important endangered alpine medicinal plant Picrorhiza kurroa revealed that pre-planting treatments of stolon cuttings by IBA 100ppm for 24 hrs resulted in maximum sprouting percentage (88.89 %), field survival (77.18 %) and dry ischolar_main-stock (economic part) biomass yield of 7.8 g/plant after two years. Treated cuttings can be directly field planted which can reduce the cost. An estimated yield of approximately 577 kg of dry ischolar_mainstock per hectare can be obtained after two years of field growth.- A Simple and Cost-Effective Method of Raising Quality Planting Material of Picrorhiza kurroa Royle Ex. Benth
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1 College of Horticulture and Forestry, CAU, Pasighat (Arunachal Pradesh), IN
2 Depertment of Forest Products, Dr. Y.S.Parmar UHF, Nauni-Solan (HP), IN
3 Division of Agroforestry, ICAR Research Complex for NEH Regions, Umiam (Meghalaya), IN
1 College of Horticulture and Forestry, CAU, Pasighat (Arunachal Pradesh), IN
2 Depertment of Forest Products, Dr. Y.S.Parmar UHF, Nauni-Solan (HP), IN
3 Division of Agroforestry, ICAR Research Complex for NEH Regions, Umiam (Meghalaya), IN