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In addition,the proportion of Typical Abortive pollen and Normal pollen acted as the fertility indexs and typical sterile group or normal fertile group was classified in segregative population according to the pollen fertility of parent or F1 hybrid.

在育性指标的划分上，本研究确定以亲本不育系及与恢复系配制的杂种F_1的花粉育性作为划分典型不育株和正常结实株的标准。

The results of studying the effects of several plant growth regulating substances on pollen germination and tube growth in pear (Pyrus serotina Rhed.) by cultivating pollens in liquid media showed that GA3,TRIA,IAA and 2,4D stimulated pollen germination and tube growth when pollen was cultivated in their lower concentration media.

采用花粉液体培养法研究了植物生长调节物质对梨花粉萌发和花粉管生长的影响，结果表明：较低浓度的赤霉素、三十烷醇、吲哚乙酸及2，4-D均能促进花粉萌发和花粉管生长，而超过一定浓度时却起抑制作用，最适宜于花粉萌发和花粉管生长的赤霉素浓度为50～300mg/L，三十烷醇为3～100mg/L，吲哚乙酸为5～25mg/L，2，4-D为5～10mg/L。

Pollen germination rate on stigmas, pollen germination rate on culture medium and stainable pollen grain rate by I-KI of the four cultivars on average under high temperature were 16.00, 25.85, and 11.74 percentage points lower than those under nonnal temperature at that time, and 8.49, 6.63, and 6.02 percentage points lower than those under normal temperature at 4 days after treatment.

相同的趋势也表现在同期开花颖花的结实特征上，高温处理的当天和其后4d开花颖花的结实率分别平均下降了14.04和5.95个百分点；而高温处理当天的空粒率和秕粒率平均分别提高了10.06和3.98个百分点，处理后4d分别提高了3.98和1.97个百分点。

Adding purified stylar S-RNase from Prunus mume cultivar 'Gessekai' to liquid medium, for cultivating self- and cross-pollen at temperatures lot, 25℃ and 35℃, respectively, then determining the rate of pollen germination and the length of pollen tube after different periods of cultivating time.

在液体培养基中添加从果梅'月世界'花柱中纯化的S-RNase，并分别于10℃、25℃和35℃条件下培养自花、异花花粉，测定不同培养时间后的花粉萌发率和花粉管生长长度；离体条件下进行果梅花柱S-RNase降解花粉管RNA反应后，用琼脂糖凝胶电泳检测不同温度条件下自花、异花花粉管RNA被降解的程度。

Effects of arabinogalactan proteins in pollen germination and pollen tube growth of Torenia fourieri and Nicotiana tabacum were studied with the in vitro pollen tube growth system.

采用花粉离体培养技术研究了阿拉伯半乳糖蛋白(arabinogalactan proteins， AGPs)在烟草和蓝猪耳花粉萌发及花粉管生长中的作用。

The DNA relative content of large unreduced pollen grains induced by colchicine was determined quantitatively with laser scanning confocal microscopy using the normal-sized pollen grains as control. The results suggest that the large unreduced pollen grains are diploid.

以正常花粉作对照，用激光扫描共聚焦显微镜对经秋水仙碱处理诱导出的大花粉进行了DNA含量的定量测定，初步确认该试验诱导的大花粉是一种二倍体花粉。

With the aid of aniline blue staining, pollen tube growth in pistil tissue was observed in Arabidopsis thaliana, and the growth speed of pollen tubes in style and ovary were calculated, the results showed that the pollen tube grew faster as time goes on.

以模式植物拟南芥为供试材料，利用脱色苯胺蓝染色的方法观察了拟南芥花粉管在雌蕊组织中的生长情况，获得了花粉管从萌发到进入花柱和子房不同时期的生长速率，结果表明，花粉管在不同时期的生长速率呈现出逐步加快的趋势。

Bee Pollen,Cellwall Pollen Powder, Pollen Extract, Propolis, Royal Jelly, Lyophilized Royal Jelly Powder, Queen Bee Larva, Drone Larva Powder,Beeswax; Aloe Vera Extract, Aloe Vera Gel Spray Dried Powder, Aloe Vera Gel Freeze Dried Powder, Aloe Vera Whole Leaf Powder.

花粉，破壁花粉，花粉提取物，蜂胶，蜂王浆冻干粉，雄蜂蛹，蜂皇胎，蜂蜡；芦荟提取物，芦荟凝胶喷雾粉，芦荟凝胶冻干粉，芦荟全叶粉。

The trial kale were used to a life of pollen determination of a study on the appropriate kale pollen of life of the liquid medium and colourings; different storage conditions on the kale and pollen storage life of the impact of .

本试验以羽衣甘蓝为试材，进行了花粉生活力测定方法的研究，探讨了适合羽衣甘蓝花粉生活力测定的液体培养基和染色剂；不同贮藏条件对羽衣甘蓝花粉生活力及贮藏力的影响。

The results showed that pollen in differentfamily or genus of plant have different requirements for phytohormones.The basicmedium of pollen culture supplemented with 2ppm NAA and GA_3 can promotes thepollen germination in Cruciferae.It has been proved that basic medium supplemtedwith 2ppm IAA and GA_3 has special effect on pollen germination and elongation ofpollen tube of woody plant in Rosace...

结果证明：不同科属的植物花粉对激素的要求不同，如在花粉萌发的基本培养基上加2ppm的NAA和GA_3混合液对十字花科植物花粉有促进作用，加2ppm的IAA和GAa_3混合液对蔷薇科木本植物花粉萌发和花粉管伸长有显著效果，而葫芦科植物的花粉在基本培养基上只要有无机盐离子就可以萌发，激素仍有促进花粉萌发的作用。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。