Refine your search
Collections
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Bhatt, Jitendra
- Ecology and Regeneration of Carpinus viminea Wall : a Lesser Known Tree Species of the Himalaya
Abstract Views :284 |
PDF Views:0
Uttarakhand, Himalayas
Authors
Source
Indian Forester, Vol 135, No 4 (2009), Pagination: 559-570Abstract
The study species, Carpinus viminea Wall, family Betulaceae, is a medium sized, lesser known, deciduous tree species distributed mainly between 1,800-2,400m elevations in Uttarakhand. It occurs mainly as an under-story species in moist Himalayan temperate forests. The objectives of the present study were to determine the ecological assemblage, seasonal changes, germination and seedling growth. Four study sites between 1,920 and 2,280m altitude were selected for the study. Vegetation characteristics indicated that the species had 33.8±10.8 ind ha-1mean tree density and 1.5±0.4 m2ha-1 mean basal area. Distribution pattern indicated that the species were contiguously distributed. Phenology indicated that leaf fall is completed before seed dispersal. All phenophases delayed towards higher elevations except leaf fall and seed dispersal which is earlier at higher elevation. Seeds germinated from different sitesresponded differently (P<0.001) to germination. Similarly, germination also varied significantly (F= 50.1, P<0.001) in different conditions. It was greater in seed germinator (T1)and least in open nursery conditions (T3). Highest germination was found in seeds of maturity periods (P0), whereas, seedling growth, biomass and survival were greater at P2 storage i.e. 6 months storage. To increase germination in open nursery conditions seeds can be sown in germination trays by adding lime between February and May. These base line data will help in understanding the ecology and regeneration of C.viminea , and also provide basic information for long term studies in relation to climate change research.Keywords
Carpinus viminea Wall., Ecology, Regeneration, Lesser Known Tree Species,Uttarakhand, Himalayas
- Growth Performance of Three Exotic Pine Species in Relation to Indigenous Species in Uttarakhand Himalayas, India
Abstract Views :256 |
PDF Views:0
(Chir Pine). Himalayas, Short Rotation, High Density, Environmental Stability
Authors
Source
Indian Forester, Vol 135, No 11 (2009), Pagination: 1556-1564Abstract
Growth and suitability of three exotic pine species - Pinus patula, P. greggii and P. elliottii were studied in Uttarakhand Himalaya and comparison made with the principal indigenous species, P. roxburghii (Chir pine). Exotic pines had significantly higher (p< 0.001) growth, volume production, increment and relative growth rate compared to P. roxburghii at 35 years of age. Exotic pines had greater growth rate in the initial 15 years than Chir pine. Thereafter, height and diameter growth rate of exotic pines reduced compared to Chir pine. This indicates the suitability of these exotic pines as short rotation, density plantation in order to maintain environmental stability.Keywords
Exotic Pines Pinus patula, P. greggii, P. elliottii, Indigenous Pine P. roxburghii(Chir Pine). Himalayas, Short Rotation, High Density, Environmental Stability
- Propagation of Tejpat (Cinnamomum tamala Nees and Eberm.) through Seeds : a New Approach
Abstract Views :276 |
PDF Views:0