Please use this identifier to cite or link to this item:
Title: Effect of Different Growth Regulators on Vegetative Propagtion of Ginkgo biloba
Authors: Gopichand
Nehria, Rakesh
Meena, Ramjee Lal
Singh, R.D.
Ahuja, P S
Issue Date: Jun-2006
Publisher: NISCAIR-CSIR, India
Abstract: Ginkgo biloba L. is the oldest living tree in the world, dates back to the Permian period, (200 million years ago) and is considered as a "living fossil". G. biloba L.(syn. Salisburia ¬†adiantifolia Sm.) belongs to the family Ginkgoaceae and is the only existing representative of the entire Ginkgophyta Division. G. biloba is an important medicinal plant. In India, since it is very rarely available and in a threatened state there is an urgent need for its extension. For its vegetative propagation at IHBT, Palampur some growth regulators viz., catechin and gallic acid (2 .5, 5.0 and 10.0 mg/L) were deployed. The effect of these compounds was evaluated in terms of rate of sprouting and rooting of semi-hard wood cuttings of mature G. biloba trees. These stem cuttings were dipped in different concentrations for 4 hours and planted in polyhouse, poly tunnel and in open field . The overall leaf sprouting percentage was 94 to 100% at different concentrations. Treated stem cuttings were uprooted after 6 months of planting. The rooting percentage, length and number of roots were measured. At 5 mg/L of catechin, rooting rate was 53.3% with average root length of 11.2 cm. At 10 mg/L of gallic acid, the rate of rooting was 56.7%, however, average root length was 8.7 cm. Roots in sprouted stem cutting varied from 3 to 5. About 28 to 41 % stem cuttings showed just callus formation and root initiation. It means that the stem cuttings require more time for rooting. In literature, it has also been reported that the stem cuttings of G. bilaba take almost 2 years for rooting. In polyhouses with controlled conditions the stem cuttings produced better results.
Page(s): 21-24
ISSN: 0975-2412 (Online); 0771-7706 (Print)
Appears in Collections:BVAAP Vol.14(1) [June 2006]

Files in This Item:
File Description SizeFormat 
BVAAP 14(1) 21-24.pdf881.97 kBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.