- adventitious
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偶然的, 外來的
偶然的, 外來的
adventitious adj. 偶然的, 外來的 ...
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A Basic Introduction Cultural Connotation釋義不定根(adventitious root)是植物的莖或葉上所發生的根。大多數情況下,不定根的發生是由於植物器官受傷或激素、病原微生物...(adventitious root)。生長素、乙烯、淹沒在水中、土壤中、遮光...
釋義 基本特徵 不定根形成 生長機制 存在植物從根的最先端到著生根毛這一段幼嫩部分叫根尖。不論主側根、不定根都具有根尖,它是根中生命活動最旺盛的部分,都由根冠、3區、伸長區和...