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每几个不同种的雌性克隆对高温(22℃、24℃、26℃)的适应力有所差异。大西洋沿岸的Laminariahyperhoren和L.sacchrina雌性克隆较太平洋沿岸的L.japonica、L.angustata和L.ochotensis雌性克隆明显地不耐高温,遗传性的不同是造成这种差异的主要原因。这种遗传性差异是海带长期自然选择的结果。同一物种L.japonica和L.japonicaCⅡ两种雌性克隆在24℃条件下,在第24天其死亡率分别是40.2％和25.2％,X~2=12.25,P<0.001,差异是高度显著的,说明这种不同是遗传性不同所致,而且属于物种内部的差异。
Each of several different female clones differed in their adaptability to high temperatures (22 ° C, 24 ° C, 26 ° C). Female clones of Laminariahyperhoren and L.sacchrina on the Atlantic coast were significantly inlerant to high temperature compared to L.japonica, L. angustata and L. ochotensis female clones on the Pacific coast. The difference in heredity was the main reason for this difference. This genetic difference is the result of long-term natural selection of kelp. The same species of L.japonica and L.japonica CII had the highest mortality at 24 ℃ at 40 ℃ and 25.2% at 24 ℃, respectively, X ~ 2 = 12.25, P <0.001. Explain that this difference is due to genetic differences, but also within the species differences.