evergreen是什么意思

用法例句

It can keep evergreen during a year.

本研究的目的是筛选出能适应长江中下游地区生长条件的常绿、抗褐斑病较强的高羊茅品种,探索与抗病性有关的相关蛋白或酶类,加速高羊茅草坪草的抗病育种进程。

Photosynthetic characteristics of three semi evergreen-evergreen poplar clone A-65/27,A-65/31 and A-61/186 were investigated.

选用A-65/27、A-65/31及A-61/1863个半常绿-常绿杨树品系,比较了其光合速率日变化特征及光合速率的光响应和CO2响应特性。

The response on five species of evergreen trees under Cd stress was studied.

研究了 5种常绿树木对镉污染胁迫的反应 ,实验结果表明 ,在高浓度镉胁迫下 ,5种树木叶片的叶绿素含量、细胞质膜透性、过氧化氢酶活性及镉富集量等生理生化特性均产生明显变化 ,但变化不尽一致。

Application of Kira and Holdridge′s temperature indexes to low temperature tolerance of evergreen trees;

Kira与Holdridge热量指标对常绿树种耐低温能力的评价