Research advances on secondary blooming in south early-maturing pear and its control measures.
Research advances on secondary blooming in south early-maturing pear and its control measures.
复制标题
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Fu Chuanming;Huang Ningzhen;Zhao Zhiguo;Li Shunhui;Huang ZhiQiong;Shi Yunping;Tang Fengluan
中科院分区：
文献类型：
--
作者：
Fu Chuanming;Huang Ningzhen;Zhao Zhiguo;Li Shunhui;Huang ZhiQiong;Shi Yunping;Tang Fengluan
综述了南方早熟梨二次开花的影响因素及其防治措施的研究进展。梨二次开花是目前研究的重点，它导致梨的坐果率低、果形小，影响产量和经济效益。研究表明，气候条件，栽培管理技术和品种生理特性是造成南方早熟梨二次开花的主要因素，综合防治病虫害、平衡水肥、科学修剪、调整单株果数等措施，可有效地控制和预防二次开花，对二次开花的树体可采取增加养分供应、及时剪去花枝、开花芽内接等，为更新南方早熟梨树，恢复活力，提高坐果率和产量，今后的研究重点应是选育抗病品种，坚持以预防为主，综合防治二次开花的原则，了解植物激素、酶学和分子生物学在控制二次开花中的作用。
The present paper reviewed the research advances on the factors causing secondary blooming in south early-maturing pear and its control measures.The secondary blooming in pears is a major concern of the current researches,and led to low fruit-bearing rate and small-fruit,and affects its yield and economic benefit.Various researches proved that climatic conditions,cultivation and management techniques and physiological properties of varieties were the main factors causing the secondary blooming in south early-maturing pear.The selection of suitable varieties,integrated management of controlling disease and insect pests,balanced irrigation and fertilizer applications,scientific pruning and adjustment of fruit number per plant may effectively control and prevent secondary blooming.Some measures could be adopted for the secondary blooming trees which included increased nutrient supply,timely cutting of flowering branches and inner graft of blossom buds,etc.,in order to update south early-maturing pear tree,restore vigour and improve fruit-bearing rate and yield.The future researches should be more focused on breeding resistant varieties,adherence to the principle of comprehensive prevention and control of secondary blooming while giving priority to prevention,and understanding the roles of phytohormone,enzymology and molecular biology in controlling the secondary blooming.