多裂骆驼蓬提取物对黄瓜种子萌发和幼苗生理特性的影响

Effects of Extracts from Peganum multisectum on Seed Germination and Seedling Physiological Characteristics of Cucumber

通过室内培养和盆栽土培试验研究了多裂骆驼蓬提取物对黄瓜种子萌发和幼苗生长及生理特性的影响。结果表明,多裂骆驼蓬总生物碱提取液、水溶性生物碱提取液和脂溶性生物碱提取液浸种均抑制黄瓜种子萌发过程中淀粉酶、蛋白酶和脂肪酶活性,种子活力和萌发速率降低,呼吸速率减慢;幼苗生长过程中根系活力、硝酸还原酶活性升高,叶绿素含量增加,超氧化物歧化酶(SOD)和过氧化物酶(POD)活性提高。说明用多裂骆驼蓬提取液浸种能够促进黄瓜幼苗生长,有利于培育壮苗。

Effects of extracts from Peganum muhisectum（ Maxim. ） Bobr. on seed germination, seedling growth and physiological characteristics of cucumber under the conditions of indoor culture and soil culture in flowerpot were investigated. The results showed that the cucumber seeds soaked with extracts of total alkaloid, dissoluble alkaloid and fat-soluble alkaloid from P. multisectum（ Maxim. ） Bobr. , the activities of amylase, protease and lipase during seed germination were inhibited, the seed vigor and germination rate were suppressed, and respiration rate of seedling was slackened; root activity, chlorophyll content and activities of nitrate reductase, superoxide dismutase （SOD） and peroxidase （POD） of cucumber seedlings during seedlings growth were increased. The results indicated that cucumber seed soaked with extracts from P. muhisectum（ Maxim. ） Bobr. could accelerate the growth of seedling and promote the breeding of healthy seedhng.