sexless coupling

Contrast experiment of isolating female from male culture and mixed culture of Portunus trituberculatus in 193 mu (1 mu = 0.

在193亩池塘中开展三疣梭子蟹雌雄分养和雌雄混养对比试验。

Phenotypic Characterization and Genetic Mapping of a New Gene Required for Male and Female Gametophyte Development in Rice

一份水稻雌雄不育突变体MFS-Z9的形态特征和遗传定位

Comparative Studies on the Development of Male and Female Gametophytes Between Fertile Line and Male Sterile Line's Flowers of Tagetes erecta L.

可育与雄性不育万寿菊雌雄配子体发育的比较研究

First Report About Found and Preliminary Observation of the Female-sterile but Male-fertile Wild Rice

雌性不育、雄性可育野生稻的发现和初步观察

On the Phenomenon that the Structure of "Nouns+Morphemes Marking Male or Female" not Showing Male or Female in Gan and Hakka Dialects;

客赣方言“名词+雌/雄语素”结构不表雌雄现象探析

The Studies on Parthenogenesis and Fertility Regulation of Photo-thermo-sensitive Genic Male Sterile Wheat;

小麦光温敏雄性不育系孤雌生殖和育性调节研究

Study on the Effects of Development of Mazie Ear and Tassel on Yield under Different Planting Density

不同密度对夏玉米雌雄穗发育和产量影响的研究

Morphological and Cytological Studies of Monogerm Male Sterile and Maintenance Sugarbeet Line in Reproductive Period

甜菜单胚雄性不育系及保持系雌蕊形态学及细胞学研究

A sterile or otherwise sexually imperfect female calf born as the twin of a bull calf.

雄化牝犊不生育或在其它方面有性缺陷的小雌牛，与小雄牛为双胞胎

Research and Prospect of Dichogamy -two-line Breeding in Cotton

棉花雌雄异熟“两系法”育种研究与展望

Having only one type of sexual organ;not a hermaphrodite.

雌雄异体的只有一种类型性器官的；不是雌雄同体的

Characterized by species in which the male and female reproductive organs occur on different individuals; sexually distinct.

雌雄异株的雌花和雄花生在不同的个体上;性区别的

Having either stamens or pistils but not both.

雌雄异花的有雄蕊雌蕊两者之一的，但不是两者兼有

The male's orange beak differentiates it from the female.

那种鸟雄鸟的喙呈橙色, 与雌鸟不同.

(botany) having pistils and stamens in separate flowers.

（生物学）雄蕊和雌蕊生在不同花中的。

The male gamete could not unite with the female.

雄配子不能与雌配子结合。

And there existed a turning point in the growth curve of the stamens and pistils of male sterile lines at the same time, but in different directions.

大多数不育系雌雄蕊的发育曲线存在拐点，它们出现拐点的时期相同，但方向完全相反。

cytoplasmic male sterilty

（细）胞质雄性不育

"Mammary gland Milk-producing gland of female mammals, usually present But undeveloped and nonfunctional in males."

乳腺: 雌性哺乳动物制造乳汁的腺体,通常雄性也有,只是没有发育或不具作用。