Investigation of Causes and Control Strategies of Early Defoliation of  Main Sand Pear Cultivars in Hubei Province

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Investigation of Causes and Control Strategies of Early Defoliation of  Main Sand Pear Cultivars in Hubei Province

Author(s):: YANG Xiaoping1; 2; ZHANG Jingguo1; FAN Jing1; HU Hongju1; DENG Xuezhou3; LI Rongmei4; (1.Research Institute of Fruit and Tea,Hubei Academy of Agricultural Science,Wuhan,Hubei 430064；2.Laboratory of Integrated Pest Management on Crop in Central China,Ministry of Agriculture,Wuhan,Hubei 430064；3.Agricultural Service Center of Jiukou Zhongxiang,Zhongxiang,Hubei 431928；4.Specialty Technology Promotion Station of Jingshan County,Jingshan,Hubei 431800)

Abstract:: Sand pear is one of the most important cultivated fruit trees in Hubei Province.Refoliation and reflorescence were caused by pear early defoliation and lead to decrease percentage of fertile fruit,affected the yield and economic benefits.This study was to provide technical support for the prevention and control the early defoliation,refoliation and reflorescence.The early defoliation,refoliation and reflorescence of 32 pear orchard in Hubei Province were investigated and analyzed in this paper.The results showed different pear cultivars,waterlogging,high temperature and drought,pests and diseases of pear,pear orchard closed canopy,chlorosis caused by deficiency iron,age of the tree and pear orchard management conditions were major cause of early defoliation of pear cultivars planted in Hubei Province.According to early defoliation and the incidence of the main cause,resistance varieties to early defoliation,reasonable construction orchard,built irrigation and drainage systems,integrated control disease and pest,deep plowing soil,strengthen nutrition,enhance vigour and spraying plant growth regulators were proposed to control early defoliation.

[1]中国种植业信息网[EB/OL].http://www.zzys.moa.gov.cn/.

[2]张桂池.福建梨“二次花”发生情况及其原因研究[D].福州:福建农林大学,2016.

[3]黄新忠,陈义挺,雷龑,等.福建梨早期大量落叶诱因与防控策略[J].中国农学通报,2010,26(2):91-95.

[4]田瑞,胡红菊,陈启亮.梨树“返青返花”的原因及预防措施[J].西南园艺,2002,30(4):25.

[5]唐晓华,欧毅,王玉霞,等.南方早熟梨早期落叶及秋花调查初报[J].西南园艺,2004,32(3):42.

[6]胡子有.亚热带地区梨树二次开花防治措施[J].中国农学通报,1992,8(3):45.

[7]徐少军.湖北省抗御2016年洪涝灾害的回顾与思考[J].中国防汛抗旱,2017,27(1):52-61.

[8]安华明,樊卫国.果树铁营养研究进展[J].西南农业学报,2001,14(3):83-89.

[9]黄新忠,陈小明,张长和.梨叶早衰脱落主要类型表现与防控对策[J].中国南方果树,2014,43(1):98-100.

[10]任艳.辽西北半干旱地区梨树早期落叶病发生原因调查与防控对策[J].防护林科技,2015(2):73-74.

[11]王进,欧毅,武峥,等.高温胁迫对早熟梨生理效应和早期落叶的影响[J].西南农业学报,2011,24(2):546-551.

[12]付传明,黄宁珍,赵志国,等.南方早熟梨二次开花的成因及防治研究进展[J].南方农业学报,2011,42(4):422-425.

[13]黄新忠,张长和,曾少敏,等.梨叶部病害与梨叶早衰脱落相关性分析[J].植物保护,2015,41(4):160-164.

[14]夏临华.南方早熟梨二次开花原因与预防措施[J].南方农业,2015,24(9):56-57.

[15]柯冠武,郭林榕.南方早熟梨早期落叶、二次开花和果实偏小现象原因及对策[J].中国南方果树,2007,36(1):77-79.

[16]钟必凤,张全军,李文贵,等.南方砂梨返花过程中内源激素含量变化及其与秋季返花的关系[J].西北植物学报,2014,34(12):2453-2458.

[17]郑鹏华,刘国琴,滕元文.植物生长调节剂对“翠冠”梨秋季二次开花返青的控制效果[J].中国南方果树,2015,44(5):95-97.

Last Update: 2018-04-17