补光对大棚火龙果冬季促花的影响  

Effect of Supplemental Lighting on Promoting Flower of Pitaya in Greenhouse in Winter

作　　者：赖瑞云[1] 张雪芹[1] 林建忠[1] 钟赞华[1] 谢志南[1] 邱晓晖[1] LAI Rui-yun;ZHANG Xue-qin;LIN Jian-zhong;ZHONG Zan-hua;XIE Zhi-nan;QIU Xiao-hui(Fujian Institute of Subtropical Botany/Fujian Key Laboratory of Physiology and Biochemistry for Subtropical Plant/Xiamen Engineering Research Center for New-superior Seeding Breeding in Agriculture and Forestry,Xiamen 361006,Fujian China)

机构地区：[1]福建省亚热带植物研究所/福建省亚热带植物生理生化重点实验室/厦门市农林新优种苗繁育工程技术研究中心,福建厦门361006

出　　处：《亚热带植物科学》2018年第3期286-288,共3页Subtropical Plant Science

基　　金：厦门市科技项目(3502Z20161241)

摘　　要：为探讨夜间补充光照对大棚火龙果冬季植株促花的效应,以2年生‘短芯’红肉(心)火龙果植株为试材,每天夜间补光6h,以不补光为对照,观测火龙果枝条抽蕾状况。结果显示,在平均光强500lx、每天补充光照6 h、连续补光45 d条件下,第一批次植株抽生花蕾率达83.3%,老枝(枝龄≥12个月)抽生花蕾率为15.2%,青枝(枝龄<12个月)抽生花蕾率为28.0%,抽生花蕾枝条占植株总枝条数的21.4%;枝条花蕾数占枝条上芽点数的比率,老枝为2.7%、青枝为2.9%。而对照植株没有抽生花蕾,抽蕾率为0。表明夜间补充光照可有效地促进大棚火龙果冬季植株抽花。Effect of supplemental lighting on promoting flower of pitaya in greenhouse in winter was carried out.Results showed that the flower bud rate of pitaya reached upto 83.3%in the first batches at the conditions of average light intensity 500 lx,6 h each day for lasting 45 d,the average flower bud rate of old branches(branch age was equal or greater than twelve months)was 15.2%,the average flower bud rate of young branches(branch age was less than twelve months)was 28.0%,the flower bud branches occupied 21.4%of all branches.The percentage of bud points which flowered on old branches was 2.7 percent,while that on young branches was 2.9%.However,there was not flower bud on those plants without supplemental lighting.The results indicated that supplemental lighting could effectively promote flower buds of pitaya in greenhouse in winter.

关 键 词：补光 大棚 火龙果 促花 

分 类 号：S667.9[农业科学—果树学]