亚麻生育后期打顶抑芽的光合特性研究

在田问试验条件下,研究了打顶+抑芽敏、打顶+人工抹芽、打顶和抑芽敏处理对亚麻生育后期光合特性的影响.结果表明,打顶+抑芽敏处理可明显增加打顶后期单株叶数和叶面积指数,提高叶绿素含量,延长叶片功能期,增强打顶中后期光合势,促进后期净同化率和群体生长率增长,使打顶中后期光合特性维持在较高水平;打顶+人工抹芽和打顶处理也在一定程度上改善了生育后期光合特性,而抑芽敏处理对光合特性影响不明显.综合考虑,亚麻生育后期以打顶+抑芽敏处理光合特性较为理想.

Study on Photosynthetic Characteristics of Decapitation and Inhibiting Sucker at Growth Later Stage in Flax

Effects of decapitation and suckering agents,decapitation and artificial removing sucker,decapitation and suckering agents treatment on photosynthetic characteristics in flax on the conditions of field experiments were studied.The results showed: decapitation and suckering agents treatment can significantly increase leaves and leaf area index at topping later stage,enhanced chlorophyll content,extended the function of leaves,improved photosynthetic potential at the topping mid and later stage,and promoted a...