Recovery of Bacillus and Pseudomonas spp. from the 'fired plots' under shifting cultivation in northeast India.

Soil samples, collected after the fire operations at agricultural sites under shifting cultivation in northeast India, were subjected to physico-chemical and microbial analysis. The fire affected various physico-chemical properties of the soil. Significant differences in pH and electrical conductivity were recorded in soil of fired and fallow plots.

Effect of pre-germination treatments on seed physiology and germination of central Himalayan oaks?

The continuous decline in regeneration of two important species of central Himalayan oak, namely Quercus glauca and Q. leucotrichophora, is of great concern. A study was therefore, carried out to improve germination ability of these species using various presoaking treatments.

Gas exchange variability and water use efficiency of thirty landraces of rice still under cultivation in Kumaun region of the Indian Central Himalaya.

Gas exchange characteristics of thirty landraces of rice (Oryza sativa L.) along with an introduced variety VL-206 (recommended high yielding variety for rainfed uplands of the Indian Central Himalaya, ICH), grown in earthen pots and kept in the open at the Institute nursery at Kosi (1150m amsl, 79°38'10″E and 29°38'15″N) were studied. The photosynthetic rate (Pn) and other related parameters were found to vary considerably among landraces.

Podophyllotoxin content, above- and belowground biomass in relation to altitude in Podophyllum hexandrum populations from Kumaun region of the Indian Central Himalaya.

The morphological features of Podophyllum hexandrum Royle, a 'critically endangered' medicinal herb and a source of podophyllotoxin, were studied in populations growing in different parts of the Kumaun region of the Indian Central Himalaya. Plant growth performance in terms of biomass accumulation and podopyllotoxin levels in the rhizomes collected from eleven natural populations (P1 to P11, altitude ranging from 2740 to 3350 m) were analyzed. Morphological features, e.

In vitro evaluation of antagonistic properties of Pseudomonas corrugata.

Pseudomonas corrugata, a soil bacterium originally isolated from a temperate site of Indian Himalayan Region (IHR) is examined for its antagonistic activities against two phytopathogenic fungi, Alternaria alternata and Fusarium oxysporum. Although the bacterium did not show inhibition zones due to production of diffusible antifungal metabolites, a reduction in growth between 58% and 49% in both test fungi, A. alternata and F.