花芽分化

青花菜的花芽分化过程伴随着GA3、IAA的含量、POD和转化酶的活性变化。

The flower-bud differentiation was accompanied by the changes of GA3 contents , IAA contents , POD activities and invertase activities in broccoli .

当植株进入花芽分化临界期时，叶片中GA3含量以及POD和转化酶活性均开始剧增，而IAA含量开始剧减；

GA3 contents , POD activities and invertase activities started to increase significantly while IAA contents started to decrease significantly when plants entered the critical stage of flower-bud differentiation ;

而过氧化氢酶（CAT）的活性则在诱导后呈下降趋势，未发现其与子叶的花芽分化有明显关系。

But there was no obvious relationship between CAT activity and floral bud formation .

洗衣粉和高pH缓冲液浸种对黄瓜子叶离体培养物花芽分化的影响

Effect of seeds pretreated with detergent and high pH buffer on the floral differentiation in cucumber cotyledons cultured in vitro

花芽分化是果树生长发育最重要的生理过程之一，而有关Ca和CaM的研究又是当今生理学研究的最活跃的领域。

Flower differentiation is one of the most important physiological processes in the growth and development of fruit trees .

本文对ABA与花芽分化的关系作对了讨论。

The relation between ABA and flower bud initiation is also discussed .

多效唑（PP（333））对黄瓜离体子叶节花芽分化的影响

Effect of Paclobutrazol ( PP_ ( 333 )) on the Floral Bud Differentiation of Cucumber Cotyledonary Nodes Cultured in Vitro

唐菖蒲在生长期K的含量大于P的含量，植株在花芽分化期对K和P的需求量最大；

During growth periods , the absorption amount to K was more than P , and the peak value both appeared during the differentiation of flower buds .

以德国鸢尾‘Royaltouch’为试验材料，研究了5种光周期对其花芽分化和光合作用的影响。

Iris germanica ' Royal touch ' was used to investigate the effects of 5 different photoperiods on flower bud differentiation and photosynthesis .

露地菊的生长亦呈Logistic曲线，并且露地菊的花芽分化阶段正是植株旺盛生长的时期。

The growth of Ground-grow Chrysanthemum also conforms to the Logistic Curve . When the flower bud differentiates , the plants grow luxuriantly .

高产区叶片N、P含量在营养生长旺盛期、花芽分化初期显著高于低产区。

The N , P content in the leaf of Ber in high yield trees was higher than those in low yield trees at fast vegetative stage and bud differentiation stage .

POD同工酶酶谱在花芽分化初期和花序原基分化期出现了新的条带，可作为分化的起始标志。

POD isozyme presented new bands in beginning period and inflorescence primordial differentiation , which could be a sign of beginning .

施用6-BA对春石斛花芽分化及内源激素的影响

Effects of applying 6-BA on the Nobile-type Dendrobium flower bud differentiation and changes of hormones

苹果梨树花芽分化期核糖核酸酶（RNase）活性变化的研究

Study on the RNase activity variation of apple-pear tree during bud differentiation

测定了这两个品种在花芽分化期间鳞茎中的可溶性总糖、淀粉、蔗糖和可溶性蛋白质、POD活性等生理指标的变化。

The changes of total soluble sugar , sucrose , starch , protein and POD activity occurring during floral bud differentiation in hippeastrum were studied .

K1处理的碳化合物含量最高，而氮化合物含量最低，SS/TP比高，花芽分化最迟，其他处理的花芽分化期差异不大。

The carbohydrate content was highest , the protein content lowest and SS / TP ratio high , but flower bud differentiation was latest in K1 treatment when compared with other treatments .

TDZ不能促进花芽分化。

TDZ was of no use to bud differentiation induction .

在长春花花芽分化即营养生长向有性生殖转变的过程中，内源激素GA3起抑制作用，而ABA和IAA起促进作用。

In flowering differentiation ( transforming from Vegetative growth to sexual reproduction ), GA_3 played an inhibition role while IAA and ABA played a promotion role .

在花芽分化期Z和的ZR变化基本一致：在诱导期含量较低，而在花原基将出现时迅速上升，达到高峰。我们认为这时ZR和Z的急剧增加可促进花原基的形成。

The level of Z and ZR are low in flower induction period and rise dramatically just before flower primordium formation , which may promote the flower primordium development .

不同苎麻雌性不育材料表现败育的部位及时期均不一致。PFS为花芽分化期的花被形成到心皮缝合时期，表现为花芽的死亡；

The PFS ramie sterile from the stage of flower bud differentiation period to carpel stiching stage , representing floral bud death ;

结果表明：大樱桃花芽分化期需要有高水平的ZRs、低水平的GA1/3和IAA。

The results showed that flower bud differentiation needs the high ZRs and low IAA and GA 1 / 3 content .

在植物花芽分化过程中，多胺水平会发生显著的变化，单独或混合外施Spm、Spd与Put能够促进花芽形成，增加花芽的数目。

In the processes of floral initiation , polyamine contents had remarkable changes , alone or mix usage of Spm , Spd and Put promoted flower bud formation , increased flower bud numbers .

生长素极性运输抑制剂（TIBA）对烟草离体花柄花芽分化的影响

The effect of Tiba on the floral bud differentiation from tobacco pedicels in vitro

相关性分析表明：0～8d期间外源Ca2+影响花芽分化率与总芽中花芽比例极显著相关，提示Ca2+可能影响子叶向花芽或营养芽分化的趋势。

These results suggested that exogenous Ca 2 + control the ratio of floral bud to total bud .

珍珠黄杨花芽分化期花芽GAs含量呈降-升-降的趋势，IAA含量急剧下降，于8月3日达到最低值，随后逐渐有所回升。

During the flower bud physiological differentiation of Buxus sinica var. parvifolia , GAs content showed a trend of fall-rise-fall . IAA content decreased at the beginning , and gradually reaches a lowest value on Aug.3 , and then increased .

这一现象表明细胞分裂素BA、KT在竹子组织培养过程中的作用不是完全相同的，BA有利于花芽分化，而KT则有利于营养生长的改善。

All the above outcomes prove the role of BA and KT are not all same in bamboo tissue cultivation , or BA benefits flower bud differentiation , and KT does nutrient growth .

可见，青花菜侧花茎每一级的花芽分化要求较高含量的GA3、较低含量的IAA和较高活性的POD、转化酶。

In a word , higher GA3 contents , lower IAA contents , higher POD activities and invertase activities were required at each grade of furcation scape primordium differentiation stage of broccoli plant .

花芽分化前30～40天所有样本均有一个CTKs含量高峰。

Levels of CTKs in all samples peaked in 30 ~ 40 days before flower initiation .

8h短日照处理能够促进唐菖蒲植株的花芽分化，提前花期，特别是对中熟和晚熟品种作用更为明显。

Short daylength light treatment of 8 hours could promote flower bud differentiation of Gladiolus , and advance florescence , especially for middle and late variety of mature period .

在刺梨花芽分化的不同时期，花芽和叶芽中的GA1+3、ZRs、IAA、ABA、淀粉、可溶性总糖、总氮含量变化不一。

At the different flower bud differentiation stage , the changes of the contents of ZRs , IAA , ABA , starch , total water soluble sugar and total nitrogen were different .