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利用人工气候箱控制不同光照长度和不同温度,在光敏核不育水稻材料幼穗分化第二次枝梗原基分化期至抽穗期进行处理。结果表明,农垦58S及其以农垦58S为供体转育而来的其他3个不育系,在育性转换中均受到光周期与温度的共同作用。农垦58S、6334S表现光周期作用的温度范围较宽;W6154S、W7415S在一定温度范围内也表现出较强的光周期效应。就此,作者提出了育性转换的光温作用模式,并讨论了新型光敏不育材料的选择目标。
The artificial climate chamber was used to control the different light length and different temperature, and the treatment of the photosynthetic-nuclear genie male-sterile rice material from the differentiation stage of the second branch to the heading stage was conducted. The results showed that Nongken 58S and its other three CMS lines with Nongken 58S as donor were both affected by photoperiod and temperature during fertility transformation. Nongken 58S, 6334S showed a wide range of photoperiod temperature range; W6154S, W7415S in a certain temperature range also showed a strong photoperiod effect. In this connection, the authors proposed a model of light and temperature for fertility conversion and discussed the selection goals for the new photo-sensitive sterile material.