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在不同程度的水分协迫条件下,供试的不同品种棉花叶片的蒸腾速率及叶片游离脯氨酸含量等都有明显变化。随着干旱程度的加剧,各品种棉叶蒸腾速率均呈下降趋势,而游离脯氨酸含量呈上升趋势。新陆早1号的日平均蒸腾速率最高,其次是新陆早4号,系5最低。棉花叶片游离脯氨酸含量的积累,新陆早4号最高,其次是系5,新陆早1号最低。
Under different degrees of water stress, the transpiration rate and leaf free proline content of different cotton varieties tested had obvious changes. With the aggravating degree of drought, the transpiration rate of cotton leaves of all varieties showed a decreasing trend, while the content of free proline increased. Xinluzao 1 had the highest daily average transpiration rate, followed by Xinluzao 4, the lowest of 5. The accumulation of free proline in cotton leaves was highest in Xinluzao 4, followed by 5, and Xinluzao 1 was the lowest.