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Under the same environmental conditions when the meiosis of microspore mother cell develop into tetrads the female buds were dipped duly with colchicine solution, which guaranteed that chromosome doubling of megaspore in white poplar could be accomplished in a short time. So much workload was cut down, and induction efficiency of triploid white poplars was also improved.

当相同生境以及培养条件下的小孢子母细胞减数分裂达到四分体后,适时采用秋水碱溶液对雌花芽进行浸泡处理,可保证白杨大孢子染色体加倍处理能集中于一个较短的时间段内进行,从而大大减轻了工作量,同时提高三倍体诱导效率和效果。

The objective of this research is to study the effects of PP333, ABA, TDZ, BA, nitrogen concentrations and sucrose concentrations on flowering in vitro of D. nobile Lindl.

本文研究了PP_(333)、ABA、TDZ、BA、含氮量和糖浓度等因素对金钗石斛组培苗花芽发生和花发育的影响。

Based on the investigation of pseudobulbs horizontal elongation and growth of nobile type dendrobium, the effects of growth regulators such as GA3, 6-BA on the floral bud differentiation were studied.

摘 要:调查了春石斛假鳞茎封顶和增粗的生长情况,并以不同浓度6-BA、GA3溶液进行灌根处理,观测其对花芽分化的效应。

To be classified as pekoe, the tea must be composed purely of the new flushes - a flush being the flower bud plucked with two youngest leaves.

作为白毫分类,茶叶必须由单纯的新的刷新-作为一个刷新花芽有两个最年轻的叶采。

The flower bud differentiation and development of 4 varieties of Phalaenopsis had been studied on different treat time at an elevation of 700 meters.

研究了不同上山时期处理对蝴蝶兰不同品种花芽分化和发育的影响以及高山处理下蝴蝶兰花梗的发育规律。

A close relationship between external morphology and anatomical structure of pistillate flower-bud was found.

中文摘要:以雄先型早实核桃辽宁1号为试材,通过观察照相和制作石蜡切片对雌花芽分化过程的外部形态及内部结构进行了研究。

The female parents are 4 choice [1] ness clones in Chinese fir primary orchard. The male parents are 3 polyanthus clones in the gene pool of old Chinese fir, the mixed pollen of these clones and all the clones in this gene pool. The testing woods were founded with 18 cross grouping which were obtained by the using of NCⅡ.

以经过子代测定的杉木初级种子园中的4个优良无性系为母本,老杉木种质资源库中的3个花芽较多的无性系及其混合花粉和种子园混合花粉为父本,采用测交系交配设计进行杂交制种,获得18个杂交组合并以此营建试验林。

Trees were applied with potassium chlorate (KClO_3) in soil from April to June. The contents of protein and carbohydrates in the leaves were determined in the period of floral bud formation.

用KClO3诱导龙眼树在4-8月份进行花芽分化并开花,在诱导成花过程中测定了结果母枝叶片碳水化合物和蛋白质的变化。

Longan trees were applied with potassium chlorate (KClO3) in soil in June and July 2001 and 2002, and the effects on inducing floral bud formation were investigated.

研究了用氯酸钾(KClO_3)诱导龙眼树成花,使其在6、7月份也能进行花芽分化并开花,在诱导成花过程中观察了龙眼成花的情况及新梢长度和粗度的变化,测定了龙眼叶片中各种生理生化指标的动态变化,结果表明: 1。

Longan (Dimocarpus longan Lour.) trees were applied with potassium chlorate ( KClO3) in soil from April to August.

用氯酸钾(KClO3)诱导成年龙眼树在4-8月进行花芽分化,开花,并测定内源激素含量的变化。

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Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆,把帆卷起,系住。

Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.

因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。