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四个籼稻（Ｏｒｙｚａ ｓａｔｉｖａ Ｌ．）品种幼苗经１℃黑暗或光照２５０ μｍ ｏｌ·ｍ － ２·ｓ－ １处理后，抗冷的“桂山矮选３”比不抗冷的“青华６ 号”幼苗存活率高，其子代是以“桂山矮选３”为母本的比“青华６ 号”为母本的存活率较高。抽穗期剑叶经光照低温处理１２、２４ 和３６ ｈ 后，光合作用是“桂山矮选３”和以“桂山矮选３”为母本的子代比“青华６ 号”和以“青华６ 号”为母本的子代下降较少。呼吸作用是前者比后者在处理１２ ｈ 时有明显升高现象。荧光参数Ｆｖ／Ｆｏ和Ｆｖ／Ｆｍ比值在处理２４ ｈ 时前者比后者下降明显，但在常温下恢复则是前者比后者明显较快。自然低温（寒露风）对叶绿素荧光的影响亦有相似的规律。对水稻后代的抗冷性倾向于母本进行了讨论
Seedlings of four indica rice varieties (Oryza sativa L.) were treated with darkness of 1 ℃ or 250 μmol · m - 2 · s-1 of light, and the cold resistant “Guishan short selection 3” “Seedling survival rate is high, its offspring is based on” Guishan short selection 3 “as the female than” Qinghua 6 “as the female survival rate is higher. After 12, 24 and 36 h of light treatment at heading stage, the photosynthesis was ”Guishan short selection 3“ and ”Guishan short selection 3“ as the offspring of ”Qinghua 6“ and ”Qing Hua 6 "less for the descendants of the female parent. Respiratory effect is the former than the latter in the treatment of 12 h significantly increased. Fluorescence parameters Fv / Fo and Fv / Fm ratio in the treatment of 24 h when the former decreased significantly than the latter, but at room temperature recovery is the former significantly faster than the latter. Natural cold (cold dew) on the impact of chlorophyll fluorescence also have similar laws. Cold tolerance of rice offspring tended to be mothers