Effect Of The Physiological Index, Yiel And Quality Of The Rapeseed With Triaocntnaol And Brassinolide

The studied material was the space was four. Studied by combination of both field trials and indoor chemical analysis. Study triacontanol(TA) and brassinolide(BR) of two kinds of plant growth regulator by soaking, spraying and soaking seeds and spraying combined treatment effect on the chlorophyll content、POD SOD MDA and other physiological and biochemical indexes、agronomic traits of plant、grain yield and quality. Which can provide a theoretical basis and technical guidance for the rational using of the two kinds of plant growth regulators. The main results were as follows:1. Rapeseed with triaocntnaol and brassinolide seed treatments early flowering or bloom spraying on the leaf can improve the leaf chlorophyll content, seed soaking with flowering spraying is the best. Brassinolide spraying on the leaf to leaf chlorophyll content is less than the effects of triacontanol, but its maintain higher chlorophyll levels in a relatively long period of time.Description triacontanol spraying on the leaf chlorophyll content of promotion with immediate effect, and brassinolide acceleration of relatively flat, but the effect lasting, it more advantageous to the leaf senescence.2. With the development of growth period, in rapeseed leves SOD、POD activity and Pro MDA content showed increasing trend.Rapeseed with triaocntnaol and brassinolide seed treatments early flowering or bloom spraying on the leaf can improve the leaf chlorophyll content, seed soaking with flowering spraying, it all will improve the SOD、 POD activity and Pro content, but reduce MDA content. The most significant effect is the seed soaking which can improve the leaves Pro content in the same time reduce MDA content. While soaking and spraying to improve leaf SOD, POD activity and Pro content, decreased the content of MDA had the best effect in the middle and later periods.3. Rapeseed with triaocntnaol and brassinolide seed treatments early flowering or bloom spraying on the leaf can increase the plant height、the stem diameter, and can improve the accumulates of leaves、stem、the grain dry matter and the percentage of dry matter accumulation. Making effective branch number per、the total number of pod、seed number per pod and improve the thousand seed weight, at the same time increase production. The triaocntnaol increasing8.51%-14.92%, the brassinolide increasing19.03%-19.79%.The brassinolide is better than the triaocntnaol. Among the different treatments, with seed soaking and spraying combined treatment had the most obvious effect.4. Rapeseed with triaocntnaol and brassinolide seed treatments early flowering or bloom spraying on the leaf can improve the rape seed oil content, but reduce the crude protein content, the effect of the triaocntnaol is better than the brassinolide treatment. The best is spraying triaocntnaol with seeds and early flowering stage. But the brassinolide treatment is on the bloom is the best. Early flowering stage or full-bloom stage of foliar application of triacontanol can significantly reduce grain glucosinolate glucoside content, The triaocntnaol and brassinolide seed treatments and brassinolide treatment on the leves can improve the content of glucosinolates.5. Rapeseed with triacontanol seed soaking or spraying on the leaf are conducive to improving oleic acid, linoleic acid, palmitic acid content, while reducing the content of erucic acid and stearic acid, it’s better to improve the quality. While treated with Brassinolide makes oleic acid、linoleic acid、erucic acid、peanut acid、palmitic acid、stearic acid content decreased, it’s adverse to improve quality.Treated with triacontanol can improve the concent of oleic acid and linoleic acid, at the same time erucic acid and peanut glucosinolates content are decreased, it is to improve the quality of rapeseed ideal cultivation measures.