anatropous ovule是什么意思

网络释义

用法例句

The first discovery of epiphyllous ovule from clone progeny of Ginkgo biloba var. epiphylla-in China with comments on its genetic stability;

中国首次发现叶籽银杏子代无性系叶生胚珠表达——兼论其遗传稳定性

epiphylla can be separated into normal leaf and leaf with epiphyllous ovules.

本研究以来自沂源的中国第一株叶籽银杏为试材,运用植物制片技术、植物染色体分析技术等对叶籽银杏的叶生胚珠形态发生过程进行了研究,同时对叶籽银杏进行比较形态学研究。

At the end of February, the bract attained approximately their full size, and a pair of anatropous ovules were initiated on the adaxial surface at the base of the fertile ovuliferous scale.

2月底，苞片体积不再发生变化，珠鳞膨大端的基部的近轴面分化出2个倒生胚珠。

The occurrence of more than one embryo in the ovule denotes polyembryony.

在胚珠中有一个以上的胚发生是表示多胚现象。

(of a plant ovule) partly inverted; turned back 90 degrees on its stalk.

（指植物的胚珠）部分的倒转；在干上向后旋转90度。

(of a plant ovule) completely inverted; turned back 180 degrees on its stalk.

（指植物的胚珠）完全倒转；在干上向后旋转180度。

being or of the nature of an ovule.

胚珠的或有胚珠特点的。

Frequently the basal ovule, which is the last one to be fertilized would abort.

最后受精的基生胚珠经常败育。

Having an ovule partially inverted and curved such that the micropyle nearly meets the funiculus.

弯生胚珠的具有部分地反向生长并变弯曲以致卵孔几乎碰到珠柄的胚珠的

Growing straight, so that the micropyle is at the end opposite the stalk. Used of an ovule.

直生的直立生长以至珠孔在茎的另一端的。用于形容胚珠

The primary chalazal haustorium ramifies around the vascular tissues of the ovule.

初生合点吸器沿着胚珠的维管组织分支。

It lasted for more than four months from initiation of the ovulate strobilus to formation of anatropous ovules.

从雌球果原基发生到胚珠分化历时4个多月。

STUDIES ON PLANTLET REGENERATION OF COTYLEDON AND HYPOCOTYL IN DESCURAINIA SOPHIA

播娘蒿子叶及下胚轴诱导再生植珠的研究

Studies on Cell and Biochemistry at Gametophytes Stage of Ovule in Pinus Tabulaeformis Carr.;

油松胚珠雌配子体发育阶段的细胞及生化研究

Establishment of Ovule Culture and Immature Cotyledon Regeneration System in Stone Fruit;

核果类果树胚珠培养及子叶再生体系构建

Study on Somatic Embryogenesis and Callus of Acacia Podalyriifolia

珍珠相思体细胞胚胎发生及愈伤组织培养

the scar on certain seeds marking its point of attachment to the funicle.

种子上的疤痕，系胚珠于胚珠柄的痕迹。

Green Gram s ovary consists of singe carpel, one locule, cantaining9-13 campylotropous ovules bearing at the marginal placentation.

绿豆子厉由单心皮构成,1室,有9—13个弯生胚珠着生在边缘胎座上。

development of flower and ovule

花及胚珠发育的时间表

The central portion of an ovule in which the embryo sac develops;the megasporangium.

珠心胚珠的中心，胚芽囊在此发育；大孢子囊