이앙시기가 중산간지 고품질 쌀 생산에 미치는 영향

In order to find out better cultivation practices in mid-mountainous area to produce high quality rice, an experiment involving four transplanting times and four varieties was carried out, during past three years (2002∼2004). There was no significantly different on palatability of rice between transplanting time, but an interaction effect was between transplanting time and variety. The palatability of milled rice of Sangmibyeo, Hwayongbyeo and Junambyeo transplanted at May 10th were higher than Samcheonbyeo. The palatability of milled rice grown by May 20th day’s transplanted, Sangmibyeo and Junambyeo were higher than Samcheonbyeo. The palatability of milled rice grown by May 30th day’s transplanted, Sangmibyeo and Hwayongbyeo were higher than Samcheonbyeo and ‘Junambyeo. And the palatability of milled rice grown by June 9th day’s transplanted, Sangmibyeo and Samcheonbyeo were higher than Hwayongbyeo and Junambyeo. It can infer that Sangmibyeo is one of the best option over the transplanting times in term of palatability. Amylose content of milled rice was showed without a significant difference between transplanting time, but there was an interaction eft농ct between transplanting time and variety. The amylose content of grown by May 20th day’s transplanted, Sangmibyeo and Samcheonbyeo were lower than Junambyeo. The amylose content of milled rice grown by June 9th day’s transplanted, Sangmibyeo and Samcheonbyeo were lower than Hwayongbyeo and Junambyeo. And the amylose content of milled rice grown by May 10th day’s and May 30th day’s transplanted, was showed without a significant difference between variety. The protein content of milled rice grown by later season transplanted was lower than grown by earlier. The head rice yield wasn’t different significantly between the treatment of transplanting times and varieties. But the yield of milled rice grown by transplanted at May 20th day was high most in between the treatment of transplanting time. In a conclusion gathering all above the results, 20th May day’s transplanting time and Sangmibyeo was one of the best option for producing high quality rice among the treatments in considering with head rice yield, palatability, amylose · protein content and productivity, at Mid-mountainous area.