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研究4种不同的药剂对低夜温下番茄幼苗的影响,探讨番茄幼苗耐低温的指标和提高番茄幼苗耐低温的方法,以期降低番茄育苗生产中的加温成本。以番茄L402为供试材料,用50、100和200毫克/升的氯化钙、水杨酸、硝普钠和壳聚糖处理低夜温下的番茄幼苗,清水为对照,测定其鲜干重、相对生
The effects of four different agents on the tomato seedlings under low night temperature were studied. The indices of low temperature tolerance of tomato seedlings and the methods to improve the low temperature tolerance of tomato seedlings were also discussed in order to reduce the heating cost in tomato seedling production. To tomato L402 as the test material, 50,100 and 200 mg / L of calcium chloride, salicylic acid, sodium nitroprusside and chitosan treatment of tomato seedlings under low temperature, fresh water as a control, measured fresh Heavy, relative health