ga1

IAA and GA1 + 3 contents first went down then kept low level .

生长素（IAA）和赤霉素（GA1+3）含量先下降，后保持低水平。

It was proposed in this paper that the ratio of ZRs / GA1 + 3 was one could be the critical index of longan floral bud physiological differentiation .

提出ZRs/GA1+3的比值为1可作为龙眼花芽生理分化的临界指标。

The content of IAA and iPAs were increased , and at the end surpassed that of control fruit . while the content of GA1 / 3 was relatively low .

IAA、iPAs含量也上升，且超过对照果，而GA1/3含量相对较低。

At the early grain-filling stage , the ABA and GA1 + 3 contents in the developing grains were higher in the upper than in the lower part of the panicle .

在结实的前中期，谷粒中ABA、GA（1+3）的含量基本上均是穗上部谷粒高于穗下部谷粒。

At the formation of floral receptacle and floscule , high levels of ZRs , ABA and low level of GA1 + 3 , IAA were observed .

在花托和小花形成阶段，芽内需要较高水平的ZRs、ABA和较低水平的GA（1+3）、IAA；

Result showed that the content of ZRs and IAA in the vitrified plantlet was lower than that in the normal plantlet , while the content of GA1 / 3 and ABA was higher .

玻璃化苗与正常苗从形态及繁殖系数上都明显区别于正常苗，内源激素测定结果显示ZRS和IAA的含量明显少于正常苗，GA1/3和ABA含量高于正常苗。

ABA was the key endogenous hormone to adjust anthocyanin synthesis . iPAs and GA1 / 3 all took part in anthocyanin synthesis , The forming of pigments was the results that the several endogenous hormone regulated generally .

ABA是调节荔枝果皮花青苷合成的关键因素，iPAs和GA1／3都参与了荔枝果皮花青苷的合成，调节荔枝果皮色素的形成是多种激素综合作用的结果。

GA1 + 2 + 3 stimulates the elongation of fiber after anthesis . GA1 + 2 + 3 with high contents is in favor of the thickening of fiber cell wall and abundant sediment of cellulose , thereby , heightening fiber strength .

GA1+2+3在开花后对纤维的伸长起着刺激作用，高含量的GA1+2+3有利于纤维细胞壁的加厚、纤维素的沉积，从而使大量葡聚糖合成，提高了纤维强度；

The inhibition of new shoot growth , improvement of fruit-set and other physiological effects caused by trunk strangulation were related with the decrease of IAA , GA1 + 3 , CTKs contents in leaves and the increase of GA1 + 3 , CTKs contents in fruits .

环扎所导致的新梢生长受到抑制，座果率提高等生理效应可能与环扎后叶片中IAA、GA1＋3、CTKs等激素含量降低和果实中赤霉素、细胞分裂素含量提高有关。