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为了找出导致杂交稻在高肥水平下不实率较高的原因,探索降低空秕率的办法.1978年我们利用光呼吸抑制剂亚硫酸氢钠(NAHSO_3)进行试验,探讨它对水稻结实的影响,不实粒形成的原因及其控制途径,为增产措施提供依据. 材料与方法早稻试验材料为“两系”杂交稻鉴59×泾紫8—3、270—2泾紫8—3两个杂交组合和常规种广陆矮四号,就不同地方(芜湖地区农科所试验田和当涂县农科所试验田)、不同肥力(以亩产千斤左右田块为高肥水平和亩产800斤左右田块为中肥水平) 条件下,单本栽插,选点定棵(每一处理各取5棵,每棵有效穗数相等),将在
In order to find out the reasons for the high false-rate of hybrid rice and explore the way to reduce the empty rate, we used the photo-respiration inhibitor sodium bisulfite (NAHSO_3) to test the effect on rice seedling , The reasons for the formation of unacceptable grains and the ways of controlling them, and provide the basis for stimulation measures.Materials and Methods The experimental materials of early rice were “Two lines ” Hybrid rice Kam 59 × Jing Zi 8-3,270-2 Jing Zi 8 -3 two hybrid combinations and conventional Guanglu Dwarf Fourth, on different places (Wuhu experimental farm and Dangtu County Agricultural Experimental Farm), different fertility (in order to produce high yield per hectare field and high yield per mu 800 pounds field for the level of fertilizer) under the conditions of the single planted, set point selection (each treatment each take 5, each effective spike equal), will be in