cotyledons

美 ['k?t?lidnz] 　英 ['k?t?li:dnz]

• n.子葉
• 網(wǎng)絡(luò)子葉；胚子；分葉狀

詞形變化

復(fù)數(shù)：cotyledons  

英漢解釋

n.

1. 絨毛葉,子葉

英英解釋

n.	1. the first leaf, or one of the first pair of leaves, produced by the seed of a flowering plant. 2. a tuft of projections on the placenta of a mammal

例句

Hypocotyls The stem below the cotyledons, occupying the region between the cotyledon stalks and the point where lateral roots arise.

是子葉以下的胚軸部分，即子葉著生點(diǎn)與側(cè)根出現(xiàn)位點(diǎn)間的區(qū)域。

During development of the seedling, the hypocotyl forms the lower portion of the stem from the radicle up to the cotyledons.

在幼苗發(fā)育期間，下胚軸從胚根到子葉的莖的下部形成。

Photosynthetic contribution of cotyledons to seedling growth was evaluated as well.

另外也對子葉光合作用對幼苗成長的幫助進(jìn)行評估。

Cotyledons should pull in the end, about the size of the package when the hand to pull up, and its advantage is thin, tender, plump.

要把胚子拉到底，差不多大小，包的時(shí)候手要向上拉，它的優(yōu)勢是皮薄，肉嫩，豐滿。

Guard cells length increased gradually while guard cell width did not change significantly during the development of cotyledons. 4.

子葉保衛(wèi)細(xì)胞的長度隨其發(fā)育而增大，但保衛(wèi)細(xì)胞寬度保持穩(wěn)定。

embryo with broad fleshy cotyledons completely united externally or not.

胚具寬的肉質(zhì)的子葉在外部完全合生或者不。

Changes of physiology and biochemistry before and after differentiation of floral primordia in cotyledons of cucumber seedlings .

黃瓜花原基分化前后子葉的生理生化變化。

When the embryo differentiated cotyledons, the haustorium cells gradually degenerated, then disappear.

胚分化出子葉時(shí)，胚乳吸器自合點(diǎn)端向珠孔端退化。

Results showed that cultured cotyledons were more sensitive to hygromycin than to kanamycin.

經(jīng)實(shí)驗(yàn)證明，離體培養(yǎng)的子葉對潮霉素的敏感性大于卡那霉素。

However, the epidermal cells of cotyledons, leaves and sepals were irregular with undulate anticlinal walls.

子葉、葉、花萼和果實(shí)上的表皮細(xì)胞呈無規(guī)則形，垂周壁波形。

Seed: embryo curved, cotyledons enclosing the endosperm, radicle elongated.

種子：胚彎曲，子葉包圍胚乳，胚根拉長。

embryo straight, cotyledons recurved, enclosing the endosperm.

胚直，子葉下彎，包圍胚乳。

family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination.

開花植物的一個(gè)屬，種子具兩片子葉（胚芽）

endosperm copious; cotyledons linear, flat, radicle superior.

胚乳豐富線形，平的子葉，上位的胚根。

radicle directed toward hilum, usually included between cotyledons.

胚根對著種臍，通常夾在2個(gè)子葉之間。

Stage I of seed development produces the radicle, which gives rise to the root, and the plumule, giving the shoot and cotyledons.

種子發(fā)育的第一個(gè)時(shí)期是形成胚根和胚芽，胚根形成根，胚芽形成莖和子葉。

Embryos erect, radicle directed downward, cotyledons fleshy.

胚直立，胚根向下指導(dǎo)，子葉肉質(zhì)。

Third, foliar fertilizer: two cotyledons fully developed and reveal a new leaf and melon spray a subsequent Block stable.

葉面追肥：在兩個(gè)子葉充分展開并露出一個(gè)新葉和瓜座穩(wěn)后各噴一次。

Cotyledons orbicular, flat, or conduplicate; embryo curved.

外果皮肉質(zhì)子葉圓形，平，或對折；

Cotyledons of mature seed from two cultivars "Qingzhou honey peach" and "Winter peach" were used as explant.

以青州蜜桃、冬桃成熟胚子葉為外植體，研究了利用子葉再生不定梢的適宜培養(yǎng)基。

Seed: embryo curved, cotyledons folded, enclosing the mealy endosperm.

種子：胚彎曲，子葉折疊，包圍粉狀的胚乳。

hypocotyl partly included between cotyledons.

下胚軸部分藏于子葉間。

A flowering plant with two embryonic seed leaves or cotyledons that usually appear at germination.

雙子葉植物具有兩片胚籽的或通常在萌芽上有雙子葉的花卉植物

The placenta should be examined for missing cotyledons or blind vessels.

檢查胎盤是否有小葉殘余或斷裂的血管。

Seed: embryo curved, cotyledons thin, broad, enclosing the thin endosperm.

種子胚彎曲，瘦的子葉，寬，包圍薄的胚乳。

Of light, stripped of skin, a layer of film-that the endosperm in the cotyledons Jinguo outside.

體輕，剝去種皮，可見一層薄膜狀的胚乳緊裹于子葉之外。

cotyledons incumbent, oblique, or accumbent.

子葉現(xiàn)任，偏斜，或者依著。

Dicotyledonae A class of flowering plants( phylum Angiophyta) characterized by having two cotyledons in the seed.

雙子葉植物綱：顯花植物的一個(gè)綱（隸屬被子植物門），特征是在種子的胚內(nèi)包含兩片子葉。

Seed without endosperm; cotyledons fleshy, equal or unequal.

子葉肉質(zhì)，相等的或不等長。

cotyledons thick and fleshy in exalbuminous seeds, thin in albuminous ones.

在無胚乳的種子里子葉厚并且肉質(zhì)，在有胚乳的種子里子葉薄。

embryo erect, radicle terete, cotyledons oblong.

胚直立，胚根圓柱狀的，子葉長圓形。

cotyledons large and broad, leaflike, compressed-flat or folded.

子葉大和寬，葉狀，壓扁平的或折疊的。

cotyledons ovate, radicle inferior.

卵形的子葉，下位的胚根。

Seedlings have cotyledons that are narrow and green to reddish in color.

幼苗有兩個(gè)狹窄的顏色由綠漸變為淡紅的子葉。

cotyledons incumbent or rarely accumbent.

子葉現(xiàn)任的或很少依著。

embryo small, arched, cotyledons thick, radicles small, papillate.

小的胚，拱起，厚的子葉，小，具乳突。

cotyledons fleshy, epigeous.

肉質(zhì)的子葉，地上。

embryo(s) 1 to many, like cotyledons milky white, green, or rarely yellowish, germination hypogeous.

胚1到多數(shù)，與子葉同為乳白色，綠色，或很少淡黃色，萌發(fā)時(shí)不出土。

Cotyledons fleshy, usually with abundant oil.

肉質(zhì)的子葉，通常具豐富的油。

cotyledons elliptic, base subcordate, apex rounded.

子葉橢圓形，基部近心形，先端圓形。