花粉

The results showed that: at metaphase I, the homoeologous chromosome pairing among different F1 hybrids ranged from 2.0 to 11.4 bi-valents formed by homoeologous chromosomes per pollen mother cell, and very few multivalents, and even very few bivalents were formed by two chromosomes within one genome rather than homoeologous chromosomes in some PMCs; at anaphase I, all biva-lents were disjoined and most univalents were divided.

结果表明在中期I阶段，这些杂种一代的近缘染色体联会变化很大，每个花粉母细胞中二价体形成的数目从平均2个到11.4个不等，甚至在某些花粉母细胞中，还发现极少的多价体和非部分同源染色体所形成的单基因组内二价体；在后期I时，所有的二价体分离，同时多数单价体也分离，分离的二价体和分离的单价体都移向两极，从而形成两组染色体；因为这时完整花粉母细胞中分离的二价体在两组染色体中总是对应出现，从而根据半二价体上染色体重组的位置可以分析在二价体的四分体时期发生在非姊妹染色体之间的多种染色体交换类型，如单交换、三线双交换、四线双交换、四线三交换和四线多交换。

Based on the practice of nectarine breeding,the systematical inheritance of peel tomenta, flesh color ,pollen fertility and flavor of parents and their hybridization offsprings was analysed.

结合油桃育种实践，对亲本、杂交后代的果皮茸毛、肉色、花粉育性、果实风味等性状进行了系统遗传分析，结果进一步证实了果皮茸毛、肉色、花粉育性3个性状各由1对等位基因控制，其中果皮有茸毛对无茸毛、白肉对黄肉、花粉可育对败育均呈完全显性，且这3对等位基因分别呈独立遗传，无互作效应；选择甜风味的品种作亲本，杂交后代出现甜油桃单株的比例较高。

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。

The tomato adult plant has the vigor, the growth good pollen, can promote the pollen through the vibration or the undulation inflorescence to disperse from the anther sac, and falls to the column head on, thus achieves the manual supplementary pollination the goal.

番茄植株具有活力、发育良好的花粉，通过振动或摇动花序能促进花粉从花粉囊里散出，并落到柱头上，从而达到人工辅助授粉的目的。

The tomato adult plant to have the vigor, the growth good pollen, can promote the pollen through the vibration or the undulation inflorescence to disperse from the anther sac, and falls to the column head on, thus achieves the manual supplementary pollination the goal.

番茄植株具有活力、发育良好的花粉，通过振动或摇动花序能促进花粉从花粉囊里散出，并落到柱头上，从而达到人工辅助授粉的目的。

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。

In this study, in order to examine the dynamics of tip [Ca2+]i together with the dynamics of tip-localized F-actin in vivo, a kind of double labeled material was constructed. The Ca2+ and actin microfilaments of Arabidopsis pollen tubes were labeled by cameleon and GFP-mTalin respectively.

本研究以拟南芥花粉管为材料，通过转基因技术，将分别标记Ca~(2+)和微丝的两种荧光蛋白cameleon与GFP-mTalin在花粉管中同时表达，实现活体花粉管中Ca~(2+)与微丝的同时标记。

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。

Exam ination ofin vitrogerm ination of these 2n pollen grains revealed that the ir germ ination percentage and pollen tube elongation rate were w ith in the norm a...

初步观察了2n花粉离体萌发状况，其萌发率与花粉管伸长速度较为正常，但萌发启动比单倍性花粉慢。

With basic liquor,wild thorn pear juice,bee pollen and flavouring as the materials,the processing technology for nutritional juice containing alcohol was explored through orthogonal experiments,and the wall-breaking of bee pollen was studied.

用基础酒、野刺梨果汁、蜂花粉、香精为原料，通过正交实验，探索含酒营养果汁饮料的生产工艺；并对蜂媒花粉的破壁工艺进行了探讨，实验可知花粉用曲霉培养，在pH5。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。