宇花灵促进沃柑春梢成花技术研究  

Study on the Technology of Yuhualing Foliar Fertilizer on Promoting Flower Formation of Spring Shoots in Orah Mandarin

作　　者：阮经宙[1] 覃楠 吴承芳 韦园菊 包亚萍 梁甲毅 阮俊翔 RUAN Jingzhou;QIN Nan;WU Chengfang;WEI Yuanju;BAO Yaping;LIANG Jiayi;RUAN Junxiang(Horticultural Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,Guangxi;Nanning Yuyiyuan Agricultural Technology Development Co,.Ltd.,Nanning 530007,Guangxi)

机构地区：[1]广西壮族自治区农业科学院园艺研究所,广西南宁530007 [2]南宁宇益源农业科技发展有限公司,广西南宁530007

出　　处：《中国热带农业》2023年第6期60-65,59,共7页China Tropical Agriculture

基　　金：南宁市重点研发项目(20212151、20212150)。

摘　　要：为了研究宇花灵叶面肥促进春梢成花作用,以沃柑为试验材料,在春梢开始萌动时,针对不同树况分别采用不同浓度、不同间隔时间进行叶面喷施,比较春梢成花、坐果、长势及叶片碳水化合物含量变化曲线。结果表明:喷施宇花灵处理叶片碳水化合物含量明显比对照高,3种组别初花期淀粉含量比相应的对照树分别提高了14.96%、10.36%、38.86%。在春梢萌动期,连喷2次宇花灵可使正常成花的树提高花质促进坐果,使芽多花少或春芽长3cm时仍无现花蕾的树春芽转成花芽。萌动期无现花蕾的树,采用200倍宇花灵隔5d喷第2次后,春梢成花率达95%,对照树春梢成花率为11.67%,效果显著。可见柑橘在春梢萌动期叶面喷施宇花灵,可提高树体碳水化合物含量,有利于促进春梢成花、提高坐果率。To explore the effects of Yuhualing foliar fertilizer on promoting flower formation of spring shoots,orah mandarin fruit trees was used as the experimental material.Different concentrations and time intervals of foliar fertilizer treatment were used for foliar spraying according to different tree conditions.Rates of flower formation of spring shoots,fruit setting and trend carbohydrate in leaves were used to evaluate the promoting effects of flower formation of spring shoots of Yuhualing.The results showed that the carbohydrate in leaves increased significantly in Yuhualing groups compared with that of the control,and the starch content of the three groups in the early flowering stage increased by 14.96%,10.36%and 38.86%respectively.The promoting effects of the quality of flowers and fruit setting percentage increased significantly by Yuhualing foliar fertilizer treatment twice when the shoots began to germinate in spring.This could help trees with more buds and fewer flowers,or trees with spring buds that were 3 cm long but still without flower buds,to transform into flower buds.Trees without flower buds during the stage of bud germination which shown no signs of flower bud differentiation were sprayed with Yuhualing once every 5 days by diluted 200 times after the second time,resulting in the flowering rate increased to 95%,which was significantly higher than 11.67%in the control group,indicating a significant effect.In summary,Yuhualing treatment during spring shoot germination of orah mandarin could increase the carbohydrate level,which was conducive to promoting flower formation of spring shoots and improving the fruit setting rates.

关 键 词：宇花灵 沃柑 春梢成花 碳水化合物 

分 类 号：S666[农业科学—果树学]