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与其邻近的枝梢顶端相比,雌球花的赤霉素GA1+3和GA4+7的含量显著较高,而脱落酸(ABA)含量并无明显差异;雄球花与其邻近的枝梢顶端相比,则ABA含量显著较高,而两者的GA1+3或GA4+7含量差异不显著;不论是雌球花或雄球花,其细胞分裂素类中的一组,玉米素核苷组(ZRs)的含量均显著低于其邻近的枝梢顶端,而异戊烯腺嘌呤组(iPAs)或二氢玉米素核苷组(DHZRs)的含量则未见显著差异。对4年生无花史的马尾松幼树施用了GA1+3、GA4+7、ABA、萘乙酸(NAA)等生长调节剂,发现ABA可显著促进雄球花的形成,而GA1+3、GA4+7和NAA则对雌、雄球花的形成均有促进效应。
The GA3 + and GA4 +7 contents of the gypenosides were significantly higher than that of the shoots of their adjacent shoots, while there was no significant difference between the ABA contents of the male flowers and the tops of the adjacent shoots ABA content was significantly higher, while GA1 +3 or GA4 +7 content of the two was not significantly different; either female or male flowers, one of the cytokinin, zeatin riboside group (ZRs) content were significant Was lower than the top of the shoots adjacent to it. However, there was no significant difference in the contents of isoprenyladenine (iPAs) or DHZRs. GAA + 3, GA4 + 7, ABA, NAA and other growth regulators were applied to four-year-old flowerless masson pine saplings and found that ABA could significantly promote the formation of male flower. GA1 +3, GA4 +7 and NAA, The formation of male flowers have a promoting effect.