수수의 고휴점파 본수에 따른 생육특성과 수량 변화

Abstract

This study was conducted to evaluate effectof plants number per hill (PNH) on growth and yield ofsorghum in drained paddy field for 2 years. Crop growthand development and yield in the field was examined toknow the efficiency of proposed cropping system. At seedingafter 40 days, leaf number and stem diameter were highestat 1 PNH plot, on the other hands, plant height was at 5PNH plot the 1st and 2nd, respectively. The harvest stage,5 PNH plot was highest culm length of 183, 188 ㎝ the1st and 2nd, however, culm diameter was lowest. Culm lengthof sorghum was highest by 183, 188 ㎝ at 5 PNH plotalso, culm diameter was thickest by 19.18, 20.13 ㎜ at 1PNH, respectively. Yield components of ear length, seednumber per ear and 1000-seed weight were highest at 1PNH the 1st and 2nd, respectively. As yield of sorghum washighest at 2 PNH plot 344 ㎏․10a-1, 382 ㎏․10a-1 yearly,respectively that it were in order of 1 PNH plot > 3 PNHplot > 4 PNH plot > 5 PNH plot.