The frost injury index and advection cold injury index of tropical herbage and the hot injury index of temperate herbage are found.
分别找到了热带牧草的霜冻指标、平流寒害指标以及温带牧草的热害指标。
Single cell of INA bacteria can not act as ice nucleus, therefor the key to the study on the relationships between INA bacteria and frost injury to plants is to study the population of INA bacteria.
由于单个的冰核细菌细胞并不具有冰核活性，因此，研究植物上冰核细菌的种群数量或密度是研究冰核细菌与植物霜冻害关系的关键。
Based on investigations, researches and scientific experiments, the cool injury index and frost index to crops that fit the fact of heilongjiang Province are analyzed and obtained.
在调查研究和科学实验的基础上，分析出符合黑龙江省实际的农作物冷害指标和霜冻指标。
Supercooled ovaries of pear flower were undamaged while ice formation in the tissues caused frost injury.
处于过冷却状态的子房不受害，而一旦组织内形成冰晶就会造成霜冻害；
The degree of frost injury in east slope is more serious than that in the west.
西坡水由柳受霜害程度明显低于东坡；
The relationship between frost injury to pear blossoms and low temperature were studied through laboratorially simulated frost injury experiment.
通过霜冻害模拟试验，研究了梨花霜害与低温的关系。
The relationship between frost injury to pear blossoms and low temperature were studied through laboratorially simulated frost injury experiment.
通过霜冻害模拟试验，研究了梨花霜害与低温的关系。
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