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干旱条件下叶片中游离脯氨酸的积累量,已用作筛选作物品种相对耐旱性的参数之一。Barnet 和 Naylor(1966)最先指出狗牙根(Bermuda grass)各品种间存在游离脯氨酸积累程度的差异,其后 Rajagopal 和 Sinha(1975)对高粱基因型也得到类似的观测结果。Singh 等人(1972)确立了大麦产量稳定性指数与游离脯氨酸积累之间的相关性。Rajagopal
The accumulation of free proline in leaves under drought conditions has been used as one of the parameters to screen the relative drought tolerance of crop varieties. Barnet and Naylor (1966) first pointed out the differences in the accumulation of free proline among Bermudagrass cultivars. Later, Rajagopal and Sinha (1975) also obtained similar observations on sorghum genotypes. Singh et al. (1972) established the correlation between barley yield stability index and free proline accumulation. Rajagopal