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- A microscopic fossil, as of a pollen grain or unicellular organism. 微體化石一種微小的化石,如花粉?;騿渭毎袡C體的化石
- The innermost wall of a spore or pollen grain. 內壁孢子或花粉粒最深處的壁
- Pollen grain trilobate in polar view. 花粉粒三裂在極面觀(guān)。
- Pollen grain semiangular in polar view. 花粉粒半具角在極面觀(guān)。
- A microscopic fossil,as of a pollen grain or unicellular organism. 微體化石一種微小的化石,如花粉?;騿渭毎袡C體的化石
- We can see spinous pollen grain in the fruit by microscope. 顯微觀(guān)察可見(jiàn),果中的刺球狀花粉粒最為顯著(zhù)。
- The contents of the pollen grain represent the male gametophyte. 花粉粒為雄性配子體。
- Both the pollen grains and the gynoecia are active. 花粉粒和雌蕊都具有活力。
- The pollen grains still to keep tetrahedral form. 小孢子四分體為四面體型。
- Pollen grains triporate, exine reticulate. 花粉粒三孔,外壁網(wǎng)狀。
- Pollen grains prolate, semicircular in polar view. 花粉粒長(cháng)球形,半圓的在極面觀(guān)。
- Pollen grains prolate, smooth, not reticulate. 花粉粒長(cháng)球形,平滑,不為網(wǎng)狀。
- The outer wall (extine) of the pollen grain is often diagnostic (see pollen) and very resistant to decay. 花粉粒外壁(花粉壁)通常為特異性的并很難腐爛。
- Discussion on the origination of Chinese tree-peony cultivars according to pollen grain morphology. 根據花粉形態(tài)探討中國栽培牡丹的起源。
- The probability of any air-borne pollen grain impacting a female strobilus is in any case very small. 任何在空氣中飄浮的花粉粒粘著(zhù)于雌球花的幾率,在任何情況下都是很小的。
- It had snow-melting-like veins on the surface of pollen grain with several hollows. 萌發(fā)孔溝多為3對(頂分體3條,側分體各對應1條),以四面體幾何中軸為中心,中心對稱(chēng)分布于四面體的3個(gè)側面。
- Stamens included size of anther,pollen number of p er anther,size,shape and viability of pollen grain. 雄蕊檢測包括花藥大小,單花藥花粉量,花粉粒形狀、大小和生活力。
- Germination The first outward sign of trowth of a reproductive body, such as a spore or pollen grain. 萌芽(萌發(fā)):是繁殖體長(cháng)出孢子,花粉粒等的過(guò)程。
- In the newly formed pollen tube,the coated vesicles mainly come from the pollen grain. 剛剛形成的花粉管中,被膜小泡主要來(lái)自于花粉粒營(yíng)養細胞的細胞質(zhì)。
- The pollen grains were spherical or oblate, with irregul... 結論:上述顯微特征可作為菱葉紅景天的鑒別依據。