柠檬花期、幼果期抹梢对产量的影响  

Influence of Erasing Spring-Shoot on Yields of Eureka Lemon during Blossom and Fruitlet Period

作　　者：段惠芬[1,2] 杨恩聪[1,2] 李进学[1,2] 朱春华[1,2] 景德华[1,2] 赵俊[1,2] 岳建强[1,2] 

机构地区：[1]云南省农业科学院红瑞柠檬研究所国家柑橘产业技术体系柠檬综合试验站,云南瑞丽678600 [2]云南省农业科学院热带亚热带经济作物研究所,云南保山678000

出　　处：《西南农业学报》2011年第5期1888-1891,共4页Southwest China Journal of Agricultural Sciences

基　　金：云南省国际科技合作项目(2008CA029);云南省科技计划党政"一把手"科技工程项目(2008QA004);国家科技支撑计划重大项目(2008BADP6B06);国家科技部科技人员服务企业行动(2009GJF30028)

摘　　要：不同树龄柠檬在开花期与幼果期,通过抹除全部不带花蕾的嫩梢,研究其对柠檬产量的影响。结果表明,在第一次生理落果至第二次生理落果结束时,均未出现生长的新梢。柠檬的结果量、春花着果量及其坐果率均较对照增加,春花着果量比对照增加46.0%～92.4%。3年生、4年生、5年生柠檬树平均单株产量分别比对照高11.8、9.9、9.8 kg,平均产量分别为26 748、40 570.5、51 720 kg/hm2,分别比对照增产18 813、16 626、17 652 kg/hm2;经济效益分别比对照增加49 467、43 300.5、50 775元/hm2。梢抽生数量、平均梢长都与第二次生理落果后春花着果、柠檬着果率呈极显著负相关;柠檬落果数量与平均单株产量及实际测定产量呈极显著相关。A field experiment was carried out by erasing all the shoots of non-bud in the blossom and fruitlet period of lemon trees with different ages to study its yields.Results showed that after different treatments,the trees did not grow new shoots from the first physiological fruit-dropping to the end of second physiological fruit-dropping.Compared with the control,the amount of fruits, the flower setting amount and its fruit set rate（46.0 %-92.4 %） was increased.The average yield per plant planted 3-yr,4-yr,5-yr were 11.8,9.9,9.8 kg higher than that of the control,respectively. And average yields was 26 748,40 570.5,51 720 kg/hm2,which increased by 18 813,16 626,17 652 kg/hm2,respectively.And profits increased by 49 467,43 300.5,50 775 yuan/hm2,respectively.The number of shoots,the average shoot length significantly correlated to the second physiological fruit-dropping of spring flowers,fruit set rates negatively. There were very significant correlation between the number of fruit-dropping related to yields of per plant and the real average acreage yields.

关 键 词：柠檬 抹梢 着果率 产量 

分 类 号：S666.5[农业科学—果树学]