不同激素对油茶关键生长过程的调节机制初步研究  

Preliminary Studies on Regulating Mechanism of Different Hormones on Key Growth Stages of Camellia oleifera

作　　者：胡玉玲[1] 胡冬南[1] 王伟峰[1] 龚丽娜[1] 张慧[1] 郭晓敏[1] 

机构地区：[1]江西农业大学园林与艺术学院,江西南昌330045

出　　处：《浙江林业科技》2011年第2期32-37,共6页Journal of Zhejiang Forestry Science and Technology

基　　金：国家十一五科技支撑项目"油茶丰产林水肥控制关键技术研究"(2009BADB1B0202);江西省自然科学基金项目"上海威敌生化(南昌)有限公司产学研合作项目"(2007GZN0242);国际植物营养研究所(IPNI)项目(Jiangxi-29)联合资助

摘　　要：对不同生长阶段的长林53品系油茶,采用L27(313)正交试验设计,分别喷施不同浓度的生长素(IAA)、赤霉素(GA)、细胞分裂素(CTK)和芸苔素内酯(BRs),研究植物激素对油茶生长的影响。结果表明:①IAA是影响产量和叶片相对叶绿素含量的关键因子,GA是影响叶片钾含量的关键因子,IAA与GA交互作用是影响籽出仁率和仁出油率的关键因子,影响花提前开放的关键因子是GA和CTK互作,IAA、GA和CTK互作是影响干物质积累的关键因子,IAA和BRs是影响叶片磷的关键因子,CTK和BRs互作是影响叶片含氮关键因子;②在5月和10月喷施10 mg/L IAA、10 mg/L GA、10 mg/L CTK和0.001 mg/L BRs,长林53号油茶最早开花;5月和9月喷施10 mg/L IAA、0.1 mg/L GA、0.1 mg/L CTK和0.001mg/L BRs,叶片SPAD值最高;5月和9月喷施0.1 mg/L IAA、0.1 mg/L GA、10 mg/L CTK和0.001 mg/L BRs,有最高的干物质积累;5月和10月喷施1 mg/L IAA、1 mg/L GA、10 mg/L CTK和0.01 mg/L BRs,叶片含磷最高;5月和9月喷施1 mg/L IAA、1 mg/LGA、10 mg/L CTK和0.1 mg/LBRs,叶片含氮量最高;③籽出仁率、仁出油率、叶片钾含量及产量最佳组合分别是5月和10月喷施0.1 mg/LIAA、0.1 mg/L GA、10 mg/L CTK和0.1mg/L BRs、5月和10月喷施10 mg/L IAA、1 mg/L GA、1mg/L CTK和0.01mg/L BRs、5月和9月喷施1 mg/L IAA、0.1mg/L GA、1 mg/L CTK和0.001 mg/L BRs、5月和10月喷施0.1mg/L IAA、10 mg/L GA、1mg/L CTK和0.01 mg/L BRs;④叶片干物质和钾的含量对开花生理贡献率最大。Study was conducted on effect of different hormones on the growth of Camellia oleifera. Different concentrations of IAA, GA, CTK and BRs were sprayed on Changlin-53 in different growth stages, according to L27（313） orthogonal design. Determinations showed that IAA is the key factor influencing relative chlorophyll content value and fruit yield GA is the key factor influencing K content in leaf. Interaction of GA and CTK is the key factor influencing early flowering. Interaction of IAA, GA and CTK is the key factor influencing dry matter accumulation. IAA and BRs is the key factor influencing P content in leaf. Interaction oflAA and GA is tile key factor influencing oil rate and seed rate. Interaction of CTK and BRs is the key factor influencing N content in leaf. In May and Oct, spraying 10 mg/L IAA, 10 mg/L GA, 10 mg/L CTK and 0.001 mg/L BRs on Changlin-53 had earlier flowering. In May and September spraying 10 mg/L IAA, 0.1mg/L GA, 0.1 mg/L CTK and 0,001 mg/L BRs, is had highest relative chlorophyll content. In May and September, spraying 0.1 mg/L IAA, 0.1 mglL GA, 10 mg/L CTK and 0.001 mg/L BRs had the highest dry matter accumulation. In May and Oct, sPraying lmg/L IAA, 1 mg/L GA, 10 mg/L CTK and 0.01 mg/L BRs had the highest P content in leaf. In May and September spraying lmg/L IAA, 1 mg/L GA, I0 mg/L CTK and 0.1 mg/L BRs had the highest N content in leaf. The best combination for kernel rate, oil yield, K content in leaf is spraying 0.1 mg/L IAA, 0.1 mg/L GA, 10 mg/L CTK and 0.1 mg/L BRs in May and Oct., spraying 10 mg/L IAA, 1 mg/L GA, 1 mg/L CTK and 0.01 mg/L BRs in May and Oct., spraying 1 mg/L IAA, 0.1 mg/L GA, 1 mg/L CTK and 0-001mg/L BRs in May and September, spraying 0.1mg/L IAA, 10 mg/L GA, lmg/L CTK and 0.01 mg/L BRs in May and Oct. Leaf dry matter and K content in leaf has the greatest effect on the flowering physiology.

关 键 词：油茶 生理 植物生长调节剂 指标 测定 叶片相对叶绿素含量 出油率 

分 类 号：S794.4[农业科学—林木遗传育种]