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利用3种扁桃砧木,进行不同浓度盐胁迫处理。结果表明:石头扁桃叶片可溶性蛋白质含量在NaCl胁迫下5,10,20d后随盐浓度的增大先升高后下降,但盐胁迫20d后比其他处理区下降幅度大。脯氨酸含量各处理区随盐浓度的增大而升高,盐胁迫5d和10d后浓度为350mmol/L时达到最大值,20d后各处理区出现大幅度下降趋势,而且盐浓度为350mmol/L处理区的植株因高盐浓度,处理时间长而死亡。桃扁桃叶片可溶性蛋白质含量在盐处理5d和10d后随盐浓度的增大先升高后下降,在300mmol/L时达到最大值,20d后随盐浓度的增加有明显下降。这说明桃扁桃受到一定的盐胁迫时间后才表现出反应。脯氨酸含量均随盐浓度的增大而迅速升高,在盐胁迫5,10,20d后均在浓度为350mmol/L时达到最大值。毛桃叶片可溶性蛋白质含量在10d和20d后各处理区都出现下降趋势。但20d后各处理区的变化趋势比较平缓,差异变化不太明显。脯氨酸含量均在浓度为350mmol/L时达到最大值,而且每个处理区积累的脯氨酸含量比其它两个砧木的pro含量高。5,10,20d的含量分别比对照提高了18.64倍、9.16倍和18.10倍。这就说明蛋白质达到平衡时,脯氨酸急剧上升。通过本研究初步判断毛桃具有较强的抗盐能力。
Three almond rootstocks were used for salt stress treatment. The results showed that the content of soluble protein in the leaves of A. almond increased firstly and then decreased after 5, 10 and 20 days of NaCl stress, but decreased significantly after 20 days of salt stress. The content of proline increased with the increase of salt concentration. When the salt concentration reached 350mmol / L at 5d and 10d, the maximum reached the maximum value. After 20d, the content of each proline decreased sharply, and the salt concentration was 350mmol / Plants in L treated area died due to high salt concentration and long treatment time. The content of soluble protein in leaves of peach tree peach increased firstly and then decreased with the increase of salt concentration at 5d and 10d after salt treatment, reached its maximum at 300mmol / L, and decreased significantly with the increase of salt concentration after 20d. This shows that peach almond subjected to certain salt stress time before showing a response. Proline content increased rapidly with the increase of salt concentration, and reached the maximum at the concentration of 350 mmol / L after 5, 10 and 20 days of salt stress. The contents of soluble protein in leaves of peach decreased in all treatment areas after 10 days and 20 days. However, after 20 days, the change trend of each treatment area is relatively gentle, the difference is not obvious. Proline content reached the maximum at the concentration of 350mmol / L, and the accumulation of proline in each treatment area was higher than that of the other two rootstocks. 5, 10 and 20d respectively increased by 18.64 times, 9.16 times and 18.10 times than the control. This shows that the protein reaches a balance, proline sharp rise. Through this study, peach has a strong ability to resist salt.