暗期光中斷對水稻生長、發育及生產之影響

Abstract

本研究於行政院農業委員會農業試驗所農場進行田間試驗，選用較低感光性稻種台稉2號(TK 2)及較高感光性稻種台稉11號(TK 11)為參試材料，利用高壓鈉燈(HPSL)、水銀燈(ML)及不照光(CK)等三種光源進行夜間暗期光中斷處理（時程介於23:30至01:30，光照2小時），據以探討短期夜間暗期光中斷對不同感光性稻種生長、發育及產量之影響。 Field experiments were conducted in the experimental farm of Taiwan Agricultural Research Institute to study the effects of short-term (2 h in-between 23:30 and 01:30) night interruption, using high pressure sodium lamp (HPSL) and mercury lamp (ML) as light sources with no light treatment (CK) in comparison, on the growth, development and yield of rice (Oryza sativa L.). Cultivars of varied photo-sensitivities, higher sensitive TK 11 relative to lower sensitive TK 2, were selected to grow in the second crop of 2007 and the first crop of 2008.