低浓度海盐苦卤处理对番茄种子萌发及幼苗生长的影响

以番茄种子及其幼苗为试验材料，以蒸馏水和0.40%氯化钠溶液为对照，研究番茄种子在海盐苦卤浓度为0.05%、0.10%、0.20%和0.40%处理下发芽率和发芽势。试验以Hoagland’s营养液及含0.40%和0.60%氯化钠的Hoagland’s营养液为对照，研究番茄幼苗在海盐苦卤浓度为0.05%、0.10%、0.20%和0.40%的Hoagland’s营养液处理下的株高、干重、鲜重、电导率、丙二醛含量及脯氨酸含量。结果表明：浓度为0.05%和0.10%海盐苦卤处理对番茄种子及幼苗无负面影响，且在一定程度上提高了番茄种子的发芽势，增加了番茄幼苗的株高、干重和鲜重，有效降低了番茄叶片的电导率，并且对番茄叶片丙二醛（MDA）含量及脯氨酸（PRO）含量影响很小；浓度为0.20%和0.40%海盐苦卤处理对番茄种子萌发无明显影响，对番茄幼苗的生长具有负面影响，且其负面影响低于同浓度氯化钠对番茄幼苗造成的影响。

Effects of Low Concentration Sea Brine on Seeds Germination and Seedlings Growth of Tomato

The materials used in the study were tomato seeds and tomato seedlings which were treated by the low concentration at 0.05%,0.10%,0.20% and 0.40% of sea brine.It was studied germinability and germination rate of tomato seeds compared with distilled water and 0.40% NaCl treatments,and studied stem length,natural weight,dried weight,leaf conductivity,leaf MDA content and leaf PRO content of tomato seedlings compared with 0.40% NaCl Hoagland's nutrient solution treatments.The results showed that the treatments...