Studies on the effects of temperature during the reduction division and the grain filling stage in rice plants, 2: effect of air temperature at the grain filling stage in indica-Japonica crosses
1983
Kim, K.C. (Chunnam National Univ., Kwangju (Korea R.). Dept. of Agricultural Biology)
This is a study on effect of air temperature on the grain filling stage of indica-japonica crosses in artificial temperature-controlled cabinets, using indica-japonica crosses (Suweon 264, Suweon 258 and Milyang 29), Indica (IR 36 and Lengkwang) and a Japonica rice (Jinheung). The optimum temperature to achieve maximum grain weight during the grain-filling stage was 26/18 deg Centigrade for all varieties. The whole panicle took 10-15 days later than the special spikelets to reach the maximum weight. At lower-than-optimum temperature range (17/9 deg Centigrade and 20/12 deg Centigrade), all IR 36 plant died within 15 days after flowering
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