Fungi associated with the new malady of coffee in South IndiaProceedings / Indian Academy of Sciences - Tập 75 - Trang 55-64 - 1972
V. Agnihothrudu
Amarked decline in the coffee yields was first noticed in Mysore during the monsoon period of 1957. The leading symptom which manifests between March/May was found to be chlorosis and epinasty of penultimate or subpenultimate pair of leaves followed by their death and the extension of necrosis from the leaf scar into the internodes. Occasionally, browning of the pith and intercellular mycelium was...... hiện toàn bộ
Gibberellin-like substances in seed and leachates of black gram (Phaseolus mungo L.)Proceedings / Indian Academy of Sciences - Tập 92 - Trang 397-402 - 1983
A V Kumar, S V Prasad, K N Rao, G R Rao
Gibberellin-like substances of black gram at different periods after soaking were extracted from seed and leachates into neutral, acidic and bound fractions. Five different factors in the acidic, four factors in the neutral and eight factors in bound fractions have been located based on their biological activity in the seed and their leachates. The effect of leaching of gibberellin-like substances...... hiện toàn bộ
Structure and function of the Central Himalayan oak forestsProceedings / Indian Academy of Sciences - Tập 96 - Trang 159-189 - 1986
S P Singh, J S Singh
Oak (Quercus spp.) forests represent the climax evergreen vegetation between 1000–3600 m in the Central Himalaya. Shrub layer is well developed in these forests and phanerophytes prevail (50–60%). Though one oak species mixes frequently with other oak species, or conifers, the single-species dominance is quite common. All the oak forests are vulnerable to fire. They support a great variety of wild...... hiện toàn bộ
Some observations on the anatomy of the heart of the African lung fish,Protopterus aethiopicus HeckelProceedings / Indian Academy of Sciences - Tập 84 - Trang 6-11 - 1976
M. G. K. Nair
The heart of the dipnoanProtopterus aethiopicus structurally resembles that of the amphibians, but its conducting system is typically piscine. The sinus venosus is thick-walled and single chambered. The atrium, the ventricle and the conus are incompletely divided, each into two parts. A single atrioventricular plug of fibrocartilagenous consistency guards the atrioventricular opening. No ventricul...... hiện toàn bộ
Population structure of tree species in forests as an indicator of regeneration and future stabilityProceedings / Indian Academy of Sciences - Tập 96 - Trang 443-455 - 1986
S P Singh, J C Tewari, S Yadav, P K Ralhan
The size class distribution in tree populations will continue to be used for analysing the regeneration of tree species and successional patterns in forest communities at extensive levels. However, information regarding the approximate estimates of lifetime expectancy (residence time) for each of the size classes, viz seedlings, saplings and trees, and the estimates of rate of net gain for them (p...... hiện toàn bộ