不同植物生长调节剂对干旱胁迫下油茶产量的影响  

Effects of Different Plant Growth Regulators on Camellia oleifera Yield Under Drought Stress

作　　者：朱宁静 何鹏亮 罗子璇 张英[1,2] 揭雨成 ZHU Ningjing;HE Pengliang;LUO Zixuan;ZHANG Ying;JIE Yucheng(Institute of Ramie,Hunan Agricultural University,Changsha Hunan 410128;Hunan Provincial Research Center of Engineering Technology for Grass Crop Germplasm Innovation and Utilization,Changsha Hunan 410128)

机构地区：[1]湖南农业大学苎麻研究所,湖南长沙410128 [2]湖南省草类作物种质创新与利用工程技术研究中心,湖南长沙410128

出　　处：《现代农业科技》2024年第24期77-82,共6页Modern Agricultural Science and Technology

基　　金：国家重点研发计划项目“华中地区主要经济作物气象灾害防控技术研发与产品创制”(2019YFD1002205-3);国家重点研发计划项目“湖南草地牧草资源调查”(2017FY100604-02);湖南省农业厅专项“湖南省草食动物产业技术体系牧草种植与秸秆加工利用岗位专家专项”(2019—2021);国家资源库专项“国家饲草与饲纤兼用作物资源分库”(NCGRC-2020-48)。

摘　　要：为探讨不同植物生长调节剂对干旱胁迫下油茶产量的影响,以湘林系列和华金为材料,在不同试验区对油茶喷施不同植物生长调节剂,测定并分析油茶的净光合速率、鲜果产量、单果鲜重、单果干重、干籽重和果仁重。结果表明:喷施1%吲哚丁酸·三十烷醇乳粉剂250倍液后油茶净光合速率最高,低产林试验区、品种换优区、品种优化配置区和高标准风采示范林的油茶鲜果产量分别为445.05、604.95、925.05、1099.95 kg/hm^(2),分别较清水对照增产53.02%、47.57%、41.22%、54.93%,增产效果明显;单果鲜重、单果干重、干籽重和果仁重均最重。综合分析,喷施1%吲哚丁酸·三十烷醇乳粉剂250倍液处理油茶的抗旱效果最好。In order to explore the effects of different plant growth regulators on the yield of Camellia oleifera under drought stress,this paper took Xianglin series and Huajin as materials,sprayed different plant growth regulators on Camellia oleifera at different experimental sites,measured and analyzed the net photosynthetic rate,fresh fruit yield,fresh weight of a single fruit,dry weight of a single fruit,dry seed weight and kernel weight of Camellia oleifera.The results showed that after spraying 1%indole butyric acid·triacontanol emulsifiable powder formulation 250 times dilu tion,the net photosynthetic rate of Camellia oleifera was the highest,and the fresh fruit yields of Camellia oleifera in the experimental sites of low-yield forest,variety upgrade area,variety optimization allocation area and high standard style demonstration forest were 445.05,604.95,925.05,1099.95 kg/hm^(2),respectively,and compared with the water control,the yield increased by 53.02%,47.57%,41.22%and 54.93%,respectively,and the yield increase effect was obvious;the fresh weight of a single fruit,dry weight of a single fruit,dry seed weight and kernel weight of Camellia oleifera were all the highest.Comprehensive analysis showed that the treatment of spraying 1%indole butyric acid·triacontanol emulsifiable powder formulation 250 times dilution had the best drought resistance effect on Camellia oleifera.

关 键 词：油茶 植物生长调控剂 干旱胁迫 净光合速率 产量 

分 类 号：S794.4[农业科学—林木遗传育种]