Stamens 5, usually inserted at base of corolla tube and adhering to stigma head to form gynostegium; filaments usually connate to form a tube enclosing ovaries; anthers 4-celled (Periplocoideae and Secamonoideae) or 2-celled, often with a membranous apical appendage; pollen tetrads contained loosely on a spatulate translator with a basal corpusculum, or pollen united into waxy pollinia, each attached through a caudicle to the retinaculum between adjacent anthers to form a pollinarium, pollinia 2 or 4 per pollinarium.

雄蕊5，著生于花冠筒的基部，與柱頭貼生，和柱頭粘生好色资源站，形成合蕊柱午夜性一级视频；花絲通常合生成管包圍子房国产孕妇一级A片免费观看；花藥4室(Periplocoideae和Secamonoideae)或者2室的，通常有一膜質(zhì)的頂端附屬物99久久免费精品视香蕉蕉；四合花粉松散地著生于匙形的載粉器上久久国产热热，具有著粉腺體，或者花粉合生成臘質(zhì)的花粉塊免费黄网址，通過花粉塊柄與系接于著粉腺上国内偷拍专区，每個(gè)花藥有花粉塊2個(gè)或4個(gè)。

Such is the hope for the millions of women like Rita Sembuya who longs for an end to the stigma of childlessness.

這是像麗塔欧美天天堂在线a一欧。西姆巴亞一樣在线观看国产理论播放网站免费视频，渴望結(jié)束不能孕育兒女這種烙印的數(shù)百萬婦女的希望。

In Brassica, codominant relationships are more frequent than dominant and recessive ones in both the stigma and the pollen, as one characteristic of SI in Brassica.

在柱頭和花粉中aa片黄色视频，自交不親和等位基因之間的共顯性關(guān)系要比顯性和隱性關(guān)系更加普遍亚洲特级黄a，這是蕓薹屬自交不親和性的一大特點(diǎn)。

If the conelet scales have grown shut or the stigma have withered , receptivity is probably past

假如小球果的鱗片已閉合或柱頭已凋萎久久久久精品高级产三级，則表明已經(jīng)沒有接受花粉的能力无码精品A∨在线观看中文免费。

He was suffering from heart stigma of profiling constriction.

他內(nèi)心深處卻受著恥辱的紋縊。

Being light and produced in large numbers, pollen grains can be more easily reaching the stigma of another flower so as to achieve cross-fertilization.

花粉粒久久精品视频这里，因輕而數(shù)目夠大量成年人小视频在线观看免费，它能夠容易到達(dá)另一株植物的柱頭，以達(dá)至異花傳粉的目的国产精品免费黄网。

Daniell has since proposed using lettuce instead of tobacco since lettuce can be produced cheaply and avoids the stigma associated with tobacco.

Daniell教授就開始計(jì)劃用萵苣替代煙草來進(jìn)行試驗(yàn)黄片又污又色又爽，因?yàn)榕c煙草相比萵苣既能廉價(jià)地提供胰島素又能避免使用煙草帶來的負(fù)面效應(yīng)久久黄色免费网站。

Style slightly decumbent, slender; stigma capitate, small.

花柱稍外傾，纖細(xì)久久久久国内精品久久久久；柱頭頭狀6080yy午夜三级中文在线，小。

The report made 35 recommendations for ways to improve mental health services including challenging stigma ageism and defeatism working on preventing problems and tackling ignorance.

該報(bào)告提出如何改善精神健康服務(wù)男人深夜天堂网站男人玩游戏女子想要，包括具有挑戰(zhàn)性的恥辱欧美日韩国产一区，年齡歧視和失敗主義的35條建議，防止問題的工作精品亚洲黄色视频在线观看，和解決無知免费观看国产裸体美女网站。

It is concluded that there are three reasons resulted in male-sterility by floral organs abormality as follows :(1) The stomium enlongates faster;(2) Anther filaments do not elongate sufficiently to position the locules above the stigma at anthesis;(3) The anther locules do not dehisce at the time of flower opening (although limited dehiscence occurs later).

用石蠟切片技術(shù)，在光學(xué)顯微鏡下觀察擬南芥部分雄性不育材料小孢子發(fā)育過程和各時(shí)期的花形態(tài)特征p怕怕免费网站，分析雄性不育的原因99久久精品无码专区。從花表型上分析導(dǎo)致雄性不育的原因有三個(gè)方面：（1）柱頭伸長過快；（2）花藥生長過慢91干屄；（3）花藥開裂晚亚州黄色一级无码。