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以‘中华寿桃’(Prunus persica L.var.densa Makino cv.‘Zhonghuashoutao’)为试材,连续2年研究其花芽在自然休眠过程中部分生理指标的变化规律。结果表明:‘中华寿桃’花芽在2013—2015年2年度间休眠进程、可溶性蛋白质含量、总氨基酸含量、过氧化物酶(POD)活性、过氧化氢(H_2O_2)含量和抗坏血酸(AsA)含量不同;2013—2014年度花芽内休眠维持时间比2014—2015年度长,2013—2014年度可溶性蛋白质含量高于2014—2015年度,而总氨基酸、POD活性、H_2O_2含量和AsA含量都低于2014—2015年度;2年度‘中华寿桃’花芽内休眠及其解除过程中花芽可溶性蛋白质含量逐渐降低,而总氨基酸含量则逐渐升高,POD活性和H_2O_2含量呈相似的变化趋势;AsA含量呈现“升-降-升-降”的变化规律,但最高值和最低值出现的时间在年度间有所不同。
Prunus persica L.var.densa Makino cv.’Zhonghuashoutao ’was used as experimental material to study the changes of some physiological indexes of flower buds during natural dormancy for two consecutive years. The results showed that the flower buds of ’Zhonghua Shou Tao’ had different contents of soluble protein, total amino acid, peroxidase (POD), hydrogen peroxide (H 2 O 2) and ascorbic acid (AsA) in the second year of 2013-2015 ; The dormancy in flower buds in 2013-2014 was longer than that in 2014-2015, the content of soluble protein in 2013-2014 was higher than that in 2014-2015, and the total amino acids, POD activity, H 2 O 2 content and AsA content were lower than those in 2014-2015 ; The contents of soluble protein in flower buds of Hwa Shou Tao during the two years of dormancy and its release were gradually decreased while the contents of total amino acids increased gradually while the contents of POD and H 2 O 2 showed a similar trend; - up - down "changes, but the highest and lowest values appear in the year between the different.