徒长

PP333在叶面喷施温室葡萄新梢后，控制徒长的有效期仅23天左右。

After spraying PP333 on the leaves of new shoots greenhouse grape , the effective period of controlling spindling was only23d or so .

两种调节剂在一定浓度范围内还提高了根系α－萘胺氧化力、ATP水平和营养吸收速率等生理活性，这也是防止秧苗徒长和培育壮秧的生理基础。

The two regulators in a certain range of concentrations can promote α - naphthamine oxidizing ability , ATP level and the absorpting of mineral nutrients of root . These factors are the physiological bases for young seedling spindling control and sound seedling cultivation .

与IAA分解代谢密切相关的IAA氧化酶、IAA过氧化物酶和POD活性，徒长苗均显著低于正常苗。

The enzymes that closely related with IAA catabolism IAA oxidase , IAA peroxidase , POD activity leggy one showed a significantly lower than the normal seedlings .

结果表明：与正常苗相比，徒长苗IAA、GA3和ZT含量升高，ABA含量下降。

The results showed that compare with normal seedlings , IAA , GA3 and ZT content of leggy seedlings were increased , ABA content decreased .

结果显示，促进细胞伸长及分裂的内源激素含量升高，氧化分解IAA的酶活性下降，可能是造成幼苗徒长的原因之一。

Leggy seedlings ' endogenous hormones which promotion cell elongation and division increased , while the enzymes that IAA catabolism , its activity were decreased , maybe it is one of reasons for seedlings leggy .

未出现症状隐蔽的徒长苗及移栽15d后出现症状隐蔽的徒长苗均在水稻抽穗前陆续死去，部分栽后15d内进入症状隐蔽状态的徒长苗可以成穗。

The leggy seedlings which did not show symptom hiding and which showed symptom hiding 15 days after transplant died all successively before early earing . A part of leggy seedlings which entered into symptom hiding state within 15 days could form ears .

秧苗徒长，苗高超标。

The high of seedling was over the proper degree .

减少或避免徒长，提高了抗性；

Reduction or avoidance of excessive growth and resistance improvement ;

徒长苗又有明显的症状隐蔽现象。

The leggy rice seedlings showed also an obvious phenomenon of symptom hiding .

采用药剂调控可显著控制幼苗徒长，提高秧苗素质。

Medicament regulation can control over growth of seedlings and improve seedling quality .

幼苗徒长的非化学调节研究进展

Progress of study on controlling the over-growth of young seedling by non-chemical method

温室葡萄枝叶徒长的调控技术研究

Studies on the Controlling Technology of Spindling of Branches and Leaves of Greenhouse Grape

缩节安对麦后直播棉花迟发徒长的调控作用

The regulation action of pix on late development and spindling of cotton sown after barley

结果：死亡率与秧苗的徒长程度有关。

Result revealed that the death rate was related with the leggy extent of rice seedlings .

多效唑浸种控制杂交水稻秧苗徒长及其与过氧化物酶的关系

Control of Hybrid Rice Seedling Spindling by Soaking Seed in MET and Its Relationship with Peroxidase Activity

结果表明：徒长苗株高、下胚轴长度显著高于正常苗。

The results showed that plant height and hypocotyls length of leggy seedlings were significantly higher than the normal .

在春旱情况下，提倡蕾期蓄水灌溉，但要注意控制徒长。

The irrigation at the squaring stage to store more water was proposed , but plant overgrowth should be controlled .

多效唑对于防止二晚秧苗徒长的生物学效应及其与植物内源激素关系的研究

Studies on the biological effects of Paclobutrazol on preventing excessive growth of Late-season Rice Seedlings and its relationship with phytohormones

徒长苗叶片薄，栅栏组织细胞变短，海绵组织排列疏松，细胞间隙变大。

Leggy seedlings leaves were thin , palisade tissues became shorter , spongy tissue arranged in loose with larger intercellular space .

研究初步确定，由亚高温弱光引起的徒长苗与正常苗在形态、叶片组织及亚细胞结构上存在明显差异。

The study preliminary identified the differences of morphology , leaf tissue and subcellular structure between normal seedlings and leggy Seedlings . 3 .

部分症状隐蔽病苗又会重新转化为徒长苗，其转化高峰发生于水稻拔节初期、破口初期。

A part of hidden symptom seedlings might retransform into leggy seedlings , the transformation peaks occurred at early jointing stage and early earing stage .

基质相对含水量为95%的处理与80%的处理相比，产量未有显著增加，且植株有徒长现象，水分利用率低，水资源浪费严重。

The yield was no significant difference between RWC 80 % and 95 % , but water was seriously wasted in treatment of RWC 95 % .

结果表明，白光和黄光培养壮苗的效果最好，蓝光和红光次之，绿光下徒长。

The results showed white light and yellow light were good for cultivating strong seedling , blue light , red light and green light in turn .

结果表明：徒长苗干物质积累量下降，鲜重、干重显著降低，根冠比显著低于正常苗。

The results showed that : Compare with normal seedlings , dry matter accumulation , and fresh weight , dry weight of leggy seedlings was significantly lower .

说明徒长苗干物质积累量减小，碳水化合物含量降低，能量固定减少，碳氮代谢缓慢。

Leggy seedlings ' dry matter accumulation decreased , carbohydrate content was decreased , the energy fixed less , carbon and nitrogen metabolism is slow . 4 .

下胚轴细胞长度与下胚轴长度呈极显著正相关，徒长苗下胚轴长度和下胚轴细胞长度显著大于正常苗，下胚轴细胞伸长速率显著高于正常苗。

Leggy seedlings hypocotyls length and hypocotyls cell length was significantly longer than the normal one , hypocotyls cell elongation rate was significantly higher than the normal seedlings .

早春保护地内温度不均衡，昼夜温差大，夜间地温偏低，严重阻碍定植作物的生长和发育，易形成徒长苗、僵化苗、花打顶，苗期病害严重。

Diagnosis and control of plant disease during flowers and plants seedling stage Equilibrium of temperature in early spring in protected field hinders seriously growth and development of crops .

在喜树花芽分化过程中结果母枝叶片钾和水溶性总糖含量始终高于徒长性营养枝叶片；对于水，它约为4×10~3大气压。

The contents of P , K total water soluble sugar and starch in the leaves of old-fruit-branch were higher than those of watershoot during the flower-bud differentiation period .

在穴盘育苗条件下由于高度集约化的生产和穴盘构造的特殊性，很容易造成秧苗徒长。

Plug in the breeding conditions due to the highly centralized of production and particularity of plug structure , the excessive growth of the plants is a very serious problem .

连作晚稻秧苗徒长的化学调控Ⅰ.多效唑的控长促蘖效应及其增产效果

CHEMICAL CONTROL OF THE OVERGROWING SEEDLINGS IN THE CONTINUOUS CROPPING OF LATE RICE ⅰ . Effects of MET on the Growth and Tillering of Rice Seedling and the Yield of Rice Grain