Effect of weight of planting material on growth and yield of ginger (Zingiber officinale Rosc.) in the hilly region of Darjeeling District.

摘要

A field trial was conducted for two consecutive years to study the effect of weight of planting material in relation to growth and yield of ginger (Zingibar officinale Rosc). Ginger cv Gorubathan was planted in ten different size, viz. 10 to 100 g with a increase at of 10 g. The spacing of 25 cm row to row and 20 cm plant to plant were maintained in both the years. The results revealed that rhizome pieces weighing 40 g each were found to be optimum for planting, which resulted in increase in plant height (74.58 cm), number of pseudostem per clump (4.73), number of leaves (54.79 per clump) and yield (49.08 tonnes per ha) compared to smaller rhizomes weighing 10, 20 or 30 g. Although an increase in the weight of planting materials upto 100 g increase the yield about 2:88 tonnes per hectare, further increase was however found to be uneconomical due to higher cost of the planting materials. Although 50 to 100 g showed maximum growth and yield but due to higher cost of planting materials it is uneconomical. Rhizome size 40 g each is best for planting material in the hilly region of Darjeeling District.