当前位置: 首页 > 文章 > 外源物质对大扁杏花器抗寒性的影响 西北林学院学报 2008,23 (1) 82-86
Position: Home > Articles > Effects of Exogenous Regulating Substances on Cold Resistance Capacity of Prunus armeniaca × sibirica' Blossom Organs Journal of Northwest Forestry University 2008,23 (1) 82-86

外源物质对大扁杏花器抗寒性的影响

作  者:
白建军
单  位:
甘肃省林业科学技术推广总站
关键词:
植物生长调节剂;脯氨酸;MDA;稀土微肥;大扁杏;花器;冻害
摘  要:
早春异常低温常会对大扁杏花器官造成伤害,导致大扁杏产量降低甚至绝产。本试验采用两种植物生长调节剂(赤霉素、芸苔素)和稀土微肥处理样树,在蕾期和花期分别测定其花器官中脯氨酸、MDA含量。结果表明:浓度大于等于1.4 m g/mL的芸苔素溶液可以提高低温胁迫后花器官中脯氨酸含量,还可以抑制低温胁迫下脂膜过氧化作用,并降低低温胁迫下花器官中MDA含量;浓度大于等于0.08 m g/mL的赤霉素溶液可以抑制低温胁迫下脂膜过氧作用,并降低低温胁迫下花器官中MDA含量:低温稀土微肥对低温胁迫后花器官中脯氨酸、MDA含量影响较小。
译  名:
Effects of Exogenous Regulating Substances on Cold Resistance Capacity of Prunus armeniaca × sibirica' Blossom Organs
作  者:
BAI Jian-jun(Gansu Forestry Science and Technology Extension Station,Lanzhou,Gansu 730046,China)
关键词:
plant hormones;proline;MDA;rare element fertilizer
摘  要:
Abnormal low temperature in early spring often hurts blossom organs of Prunes armenia × siberia,resulting in low yields or even no yields of the fruit. In this experiment,we treated the trees with two kinds of plant hormones(GA,BR) and rare element fertilizer.During the flower-bud period and blossom period,we measured the contents of proline and molondialdepioyde in blossom organs both under the normal temperature and the artificial cold stress.The results showed that much higher BR could improve proline content in the blossom organs in cold stress.The treatment also repressed the membrane lipid peroxidation effects and decreased the molondialdeployde content.Much higher GA can represse the membrane lipid peroxidation effects and decreased the molondialdeployde content;Rare element fertilizer showed little effect on proline content and moiondialdeployde content.

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