Productivity evaluation of Indian gooseberry cultivars (Emblica officinalis Gaertn) on degraded land under rainfed conditions of north-west Himalayan region.

摘要

Productivity of six cultivars of Indian gooseberry was evaluated on degraded wastelands under sub-humid rainfed condition at Research Farm, Central Soil and Water conservation Research and Training Institute at Selakui, Dehradun (Uttarakhand) during 1997 to 2007. The cultivar NA-7 of Indian gooseberry produced maximum canopy volume (36.7 m3), number of fruits (18.1 branchlet-1) & (2866.1 tree-1) and fruit yield (20.51 ha-1), productivity of fruit (14.0 kg ha-1 mm-1), TSS:acid ratio (8.3), leaf litter fall (17.5 q ha-1) and ranked first based on cost benefit ratio (1:5.9). Krishna also grown vigorously on degraded wastelands under rainfed conditions and gained canopy volume statistically at par with NA-7 (35.9 m3), maximum wood biomass (12.5 t ha-1), wood productivity (1.3 kg ha-1 mm-1), better physical fruit quality parameters, ranked 2nd position considering economic returns and cost benefit ratio (1:5.4) and leaf litter fall (17.9 qha-1). The cultivar NA-6 produced maximum TSS (18.9 degrees Brix); total sugar (11.2%) and occupied third place based on C:B ratio (1:5.29), whereas NA-10 was poorest among all cultivars based on cost benefit ratio.