湖南农业大学学报（自然科学版）2018，Vol.44Issue(2)：124-129,6.DOI:10.13331/j.cnki.jhau.2018.02.002
渍涝胁迫后喷施植物生长调节剂对花生生长及产量品质的影响
Effects of spraying plant growth regulators on peanut growth and yield & quality under waterlogging stress
摘要
Abstract
In order to decrease the loss of peanut caused by waterlogging disasters, the waterlogging–tolerant cultivar Xianghua 2008 and waterlogging–sensitive cultivar Zhonghua 4 were used as the experimental materials to investigate the effect of plant growth regulator on the accumulation of dry matter, yield and quality of peanut. The process of waterlogging stress was simulated in the middle vegetative growth stage (south rainy reason), and peanuts were sprayed with three kinds of plant growth regulator –GA3(Gibberellic), ETH (ethephon) and PP333(Paclobutrazol). The results indicated that: (1) The roots growth of waterlogging–tolerant varieties was increased by three plant growth regulator treatment under waterlogging condition. The aboveground and underground growth was promoted under GA3and ETH treatment. The plant height and branch length were inhibited under PP333treatment. (2) The pod yields of waterlogging–tolerant varieties were increased by –1.7%–24.9% under different content of regulators treatment. Whereas the yield of waterlogging–sensitive cultivar was increased by 4.7%–45.3% under the treatment. The GA3treatment had the best effect on the yield of two peanut cultivars, followed by ethephon, PP333. (3) GA3treatment increased oil content, decreased protein content, improved the O/L ratio for resistant cultivar; while reduced oil content, increased protein content, reduced O/L ratio for sensitive cultivar. ETH especially high concentration decreased oil content as well as protein content for two cultivars. PP333increased oil content, decreased protein content and O/L ratio for resistant cultivar,while had lower effects on quality indexes for sensitive cultivar. Therefore, peanut cultivars with different waterlogging tolerance character should take corresponding chemical control measures after the disaster.关键词
花生/渍涝/赤霉素/乙烯利/多效唑Key words
peanut(Arachis hypogaea)/waterlogging stress/GA3/ETH/PP333分类
农业科技引用本文复制引用
黄辉,刘登望,李林,吴佳宝,万书波,李新国..渍涝胁迫后喷施植物生长调节剂对花生生长及产量品质的影响[J].湖南农业大学学报（自然科学版）,2018,44(2):124-129,6.基金项目
国家科技支撑计划项目(2014BAD11B04) （2014BAD11B04）
国家自然科学基金项目(31671634) （31671634）
国家花生产业技术体系建设专项(CARS–14) （CARS–14）
