Effect of seed production locations on seed quality and storabillty in rice (Oryza sativa L.) hybrid KRH-4

Abstract

The experiment was conducted at Department of Seed Science and Technology G.K.V.K, U.A.S, Bengaluru. To investigate the “Effect of seed production locations on seed quality and storabillty in rice (Oryza sativa l.) hybrid KRH-4”. Freshly harvested seeds were collected from three different locations viz,.L1-Mandya, L2-Tumkur, L3-Kollegala and used for investigation. The seeds were stored for twelve months under ambient condition and observation were recorded on seed quality parameters bimonthly up to ten months and their after observation were recorded monthly interval. Among different locations, seeds produced at Mandya had better seed storability and seed quality parameters such as moisture content (10.18%), test weight (18.97 g), germination (80.08%), seedling vigour index-II (846), electrical conductivity of see leachates (3.79 dSm-1), pH of seed lechates (7.33). alpha amylase activity (0.27 cm), total dehydrogenase activity (0.36 A480nm), seed infection (15.37%), seed infestation (22.17%) and field emergence (76.29%). This study could be concluded, that the rice hybrid KRH-4 produced at Mandya location can be stored for longer period. However, seed produced at Kollegala location recorded lower seed quality parameters.