Wild edible plant species diversity in Pinus gerardiana forests of district Kinnaur, Himachal Pradesh was assessed following quadrat method using stratified random sampling. A total of 55 plant species comprising of five trees, 21 shrubs and 29 herb species have been recorded in the study area. Out of the total recorded plant species, 54.55 per cent were edible and 45.45 per cent were non-edible. Among trees, P. gerardiana was recorded with the highest density of 206.77 trees/ha, basal area of 22.43 m2/ha and IVI value of 252.81. Among edible shrubs a rarely used plant, Daphne oleoides was the most dominant species with highest density (0.21 bushes/9m2), frequency (21.23%) and IVI (71.55). In case of herbs, Thymus serphyllum had the highest density of 2.91 individuals/m2, frequency (12.04%) and IVI (31.57). During the present study, it has been observed that the P. gerardiana is an important commercial tree species exploited for its edible nuts. However due to over-exploitation, grazing, habitat degradation and other biotic threats its natural regeneration is dwindling. Besides this important natural resource, other species viz., Prunus persica, Berberis aristata, Elaeagnus umbellata, Chenopodium album, Pyhtolacca acinosa etc., also have market potential, however adequate emphasis has not been laid on their propagation and conservation. The results also revealed that many wild species are under growing pressures from various anthropogenic factors. Therefore, it is suggested that large-scale awareness programmes on wild edible plants should be initiated and these species should be included in the forestry/rural plantation programmes. Further, propagation plan needs to be developed on important wild edible plant species and people should be encouraged to grow these wild edible plants of commercial importance which will reduce the pressure on the wild populations growing in the forest areas.
Ectomycorrhizal fungi associated with Pinus gerardiana in Kinnaur district of Himachal Pradesh, India
