摘要
为比较不同种类的植物生长调节剂对番茄抗寒能力的影响,本研究设计9个处理植物生长调节剂与水溶肥配合处理,测定低温后番茄的生物量及生理生化指标,评估植物生长调节剂对番茄的抗冷效应。结果表明:各处理(T4除外)的株高均高于清水和常规水溶肥对照;T5地上干重显著优于常规水溶肥组和其他处理组,高出常规水溶肥组71%;T1在根干重指标上,显著优于清水对照和其他处理,高出常规水溶肥组78%。高磷水溶肥处理的MDA浓度最低,其SOD酶活性也较高;T5能显著调动更多的脯氨酸参加抗冻防御,脯氨酸含量高出常规水溶肥66.7%;T1、T3和T5的含量显著高于常规水溶肥组,分别高出39%、21%和31%。综合生物量和生理生化指标结果,T5和T1处理表现较好。
In order to compare the effects of different plant growth regulators on the cold resistance of tomatoes,nine treatments of plant growth regulators combined with water-soluble fertilizer were designed to determine the biomass,physiological and biochemical indexes of tomatoes after low temperature,and to evaluate the cold resistance of plant growth regulators to tomatoes.The results showed that the plant height of all treatments(except T4) was higher than that of clear water and conventional water-soluble fertilizer.The above-ground dry weight of T5 was significantly higher than that of conventional water-soluble fertilizer group and other treatment groups,which was 71% higher than that of conventional water-soluble fertilizer group.T1 was significantly superior to water control and other treatments in root dry weight,which was 78% higher than that of conventional water-soluble fertilizer group.The MDA concentration of high phosphorus water-soluble fertilizer treatment was the lowest,and its SOD activity was also higher.T5 could significantly mobilize more proline to participate in anti-freeze defense,and the proline content was 66.7% higher than that of conventional water-soluble fertilizer.The contents of T1,T3 and T5 were significantly higher than those of the conventional water-soluble fertilizer group(39%,21% and 31%,respectively).According to the results of biomass and physiological and biochemical indexes,T5 and T1 treatments performed better.
作者
曲树栋
冷伟锋
尹武传
魏延青
任先顺
王子浩
QU Shu-dong;LENG Wei-feng;YIN Wu-chuan;WEI Yan-qing;REN Xian-shun;WANG Zi-hao(China Sinochem Fertilizer Company Limited,Beijing 100033,China;Linyi Agricultural Centre of China Sinochem Fertilizer Company Limited,Linyi 276023,China)
出处
《黑龙江农业科学》
2019年第6期72-75,共4页
Heilongjiang Agricultural Sciences
基金
国家重点研发计划(2018YFD0201401)
关键词
番茄幼苗
植物生长调节剂
水溶肥
抗寒
tomato seedlings
plant growth regulators
water-soluble fertilizers
cold resistance
