Abstract

                                Studies were carried out to assess the influence of three seed sizes with five intra- Tow spacings on the growth and yield of potato during rabi of 1977-78 and 1978-79 as well as kharif of 1978 in red sandy loam soil of Bangalore. Higher yields were recorded. from kharif crop. The maximum yield (335.2 q/ha) was obtained with large sized seed tubers spaced at 25 cm between tubers, while the lowest yield (241.7 e/ha) was recorded with small sized seed tubers spaced at 25 cm between tubers. The large and medium sized soed tubers produced higher yields of large and medium sized tubers as well as higher number of tubers and shoots per hill as compared to small sized seed tubers. The results indicated that when the inter-row spacing was 60 cm. the intra-row spacing could be quite narrow (15-20 cm) for small sized seed tubers and slightly wider spacing (20-25 cm) for large and medium sized seed tubers to obtain higher yields under Bangalor conditions.

Key words :