白杨

Megaspore mother cell just enters leptotene as The meiosis of microspore mother cell develop into tetrads . The meiosis of megaspore mother cell develop into pachytene while that of microspores develop into a single nuclear adjacent to cell wall.

当白杨小孢子母细胞减数分裂至四分体时，大孢子母细胞开始进入减数分裂细线期；而当小孢子发育至单核靠边期上时，大孢子母细胞减数分裂达到粗线期。

In an election that is closely contested across the country, Poplar and Limehouse is a neck-and-neck, three-horse race.

在这场全国范围的激烈竞争中，白杨区和莱姆豪斯区进行的是并驾齐驱的三马奔腾。

At the foot of the colour you stand in a trembling aspen grove, every leaf painted like a butterfly, and away to right and left around the shores sweeps a curving ribbon of meadow, red and brown dotted with pale yellow, shading here and there into haze purple.

立在湖边，身处哗哗作响的白杨林中，只见片片叶子如蝴蝶般斑驳。草地围拥堤岸左右，恰似彩带环绕，红棕之间点缀着苍黄，四处渐次化为暗紫。

2It is practical that triploid white poplars induced by the chromosome doubling of megaspore based on the development of microspore.

2通过小孢子发育进程参照系的设立，实现了大孢子染色体加倍诱导白杨三倍体技术的实用化。

Results indicated : The meiosis stages of megaspore of white poplars are different, while there was a association between MMCs and PMCs meiosis in the same hybrid.

研究表明，不同白杨的大孢子母细胞减数分裂进程存在差异性，而同一树种的大、小孢子母细胞减数分裂进程存在时序性相关。

Now the research has made progress.(1) The meiosis stages of megaspore could be discriminated timely through observing the meiosis of microspore under the same environmental conditions, according to the association of female and male buds during development.

1首次提出利用雌、雄花芽发育进程的时序性相关性，以相同生境以及培养条件下的小孢子发育进程为参照，从而相对准确地实现白杨大孢子母细胞减数分裂进程即时判别的技术方法。

Under the same environmental conditions when the meiosis of microspore mother cell develop into tetrads the female buds were dipped duly with colchicine solution, which guaranteed that chromosome doubling of megaspore in white poplar could be accomplished in a short time. So much workload was cut down, and induction efficiency of triploid white poplars was also improved.

当相同生境以及培养条件下的小孢子母细胞减数分裂达到四分体后，适时采用秋水碱溶液对雌花芽进行浸泡处理，可保证白杨大孢子染色体加倍处理能集中于一个较短的时间段内进行，从而大大减轻了工作量，同时提高三倍体诱导效率和效果。

Every night to sunrise, the eastern side of the ray pailou Madadayo smoke straight up, circled filled in Poplar, between the willows, misty indistinct缥缈, Tibetan temple to the sea to add a wonderful atmosphere of magic, called "sea possessionyan liu ""han yan sunrise," a Temple for the wonders of the sea.

每至日出时分，牌楼东侧一缕青烟袅袅直上，盘旋缭绕于白杨、垂柳之间，缥缥缈缈，给海藏古刹增添了一种神奇绝妙的气氛，人称"海藏烟柳"、"日出寒烟"，为海藏寺一大奇景。

Like a palm tree in En-gedi, like a rosebush in Jericho, Like a fair olive tree in the field, like a plane tree growing beside the water.

我高峻，如恩革狄的棕树，有如耶里哥的玫瑰树。我好象平原上一棵美丽的橄榄树，又像一棵耸立在街道溪畔的白杨。

Poplar around in polite hello to me, as if to say: Good morning!

周围的白杨在彬彬有礼地向我问好，好像在说：早上好！

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。