plant的过去式怎么写精品多篇

HOW TO PLANT A TREE 篇一

HOW TO PLANT A TREE

1 The ground must be just center -- neither too wet nor too dry. It's best to plant trees in spring because it's warmer.

2 Dig a hole large enough for the tree. But the hole should not be too deep.

3 Knock a long, strong stick into the earth next to the hole. Make sure that it is straight.

4 Put the tree in the hole so that it is straight.

5 Put the earth back in the hole again. Push it down hard with your foot several times.

6 Tie the tree to the top of the stick to keep it straight.

7 Water it well, as often as possible.

如何种一棵树

1地面必须是中心——既不太湿也不太干。最好在春天种树的原因是它的温暖。

2挖一个足够大的树洞。但孔不宜太深。

3把长，结实的木棍旁边的'孔。确保它是直的。

4把洞的树，那么它是直的。

5把土放回坑里去。你用力踩几次。

6把树捆在木棍的顶端保持直立。

7的水好，尽可能多地。

Genetic Analysis on Plant Type of No 篇二

Genetic Analysis on Plant Type of Northern Japonica Hybrid Rice

This study was designed to analyze the genetic relationship of the morphological traits of the northern japonica hybrid rice. The genetic relationship of the morphological traits of the 100 cultivars combined by the 10 sterile lines and the 10 restore lines was studied by using the principle component analysis and the SAS and QGA. The results showed that compared with the female parent, most of the morphological traits related closely to their father. The additive genetic effect and the dominant genetic effect appeared significantly, and the former was more significant than the latter. Genetic correlation analysis indicated that high plants or high plants with more leaves were in favor of improving the number and the weight of the spike and producing the hybrid vigor. The important factors influencing the plant type of the northern japonica hybrid rice were the plant height (PH), the angle of the flag leaf (FLA), flag leaf length (FLL), and the weight of the shoots and leaves (SLW), respectively. The morphological traits system of the northern japonica hybrid rice was very complex, and the restore line should be given more importance compared with the sterile line, and PH, FLA, FLL, and SLW should be considered first in the plant type breeding.

作 者：MA Xiu-fang HUA Ze-tian HAO Xian-bin SHEN Feng  作者单位：MA Xiu-fang(Shenyang AgrICUltural University, Shenyang 110161, a;Liaoning Rice Research Institute, Shenyang 110161, P.R. China)

HUA Ze-tian,HAO Xian-bin,SHEN Feng(Liaoning Rice Research Institute, Shenyang 110161, P.R. China)

刊 名：中国农业科学（英文版） 英文刊名：AGRICULTURAL SCIENCES IN CHINA 年，卷(期)：2008 7(11) 分类号：Q94 关键词：hybrid japonica rice   plant type   genetic correlation analysis

plant的过去式怎么写 篇三

过去式planted造句

1. She planted a kiss on each of his leathery cheeks.

她在他粗糙的面颊上左右各吻了一下。

2. Bombs were planted in stores in Manchester and Blackpool.

炸弹被安放在曼彻斯特和布莱克浦的'几家商店里。

3. A bomb planted in a garbage can exploded early today.

今天早些时候，安放在垃圾箱里的一枚炸弹爆炸了。

4. The interior flatlands and valleys are thickly planted with coconuts.

内陆的平地和山谷中种着茂密的椰子树。

5. Tubs planted with wallflowers brightened the area outside the door.

桂竹香盆栽为门外的景致增色不少。