三十烷醇在GA3 影响水稻幼苗生长和生理性状中的增效作用

微量三十烷醇(TRIA)与GA3 配合使用, 比GA3 单独使用能明显地促进幼苗生长和增加幼苗干物质 积累.同时还增强了GA3 对幼叶中叶绿素含量、可溶性蛋白质含量、呼吸速率、细胞膜透性和过氧化物酶 活性的影响.GA3 +TRIA 与GA3 处理相比, 促进幼叶内源GA3 水平提高, 稳定保持内源ZT 于一定水平, TRIA 在GA3 低浓度时降低IAA 水平, 在高浓度时则提高IAA 水平.作者认为TRIA 可作为GA3 处理时 的增效剂

Enhancement of Triacontanol to GA3 in Influencing the Growth and Physiological Characteristics of Rice Seedling

Triaco ntanol(T RIA)with trace supplemented to GA3 is more effective than the single GA3 in promoting the g rowth of rice seedlings , and increasing the dry weight accumulation in them .Meanwhile , it w as observed that GA3 supplemented with TRIA made greater effects than those of GA3 on chlo rophyll and soluble protein contents, respiration rate , membrane permeability and activity of peroxidase in young leaves.As compared with GA3 , GA3 +TRIA increased the endogenous GA3 level and maintained the endogenous ZT in a more stable level.The resulting IAA level was dependent on the GA3 concentration when the TRIA w as supplemented.The present paper sug gested that TRIA could be used as a enhancer fo r GA3 application .