Article(id=1277254128908763799, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1277254112370623080, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1000-2561.2026.02.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1763308800000, receivedDateStr=2025-11-17, revisedDate=null, revisedDateStr=null, acceptedDate=1765987200000, acceptedDateStr=2025-12-18, onlineDate=1782450714566, onlineDateStr=2026-06-26, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782450714566, onlineIssueDateStr=2026-06-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782450714566, creator=13701087609, updateTime=1782450714566, updator=13701087609, issue=Issue{id=1277254112370623080, tenantId=1146029695717560320, journalId=1235980609244409860, year='2026', volume='47', issue='2', pageStart='281', pageEnd='551', issueExtLink='null', onlineDate='null', pubDate='1771948800000', pubDateStr='2026-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1782450710622, creator='13701087609', updateTime=1782451594955, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1277257821632729830, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1277254112370623080, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1277257821632729831, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1277254112370623080, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=372, endPage=380, ext={EN=ArticleExt(id=1277254129625989785, articleId=1277254128908763799, tenantId=1146029695717560320, journalId=1235980609244409860, language=EN, title=Breeding Report of the Excellent Rubber Clone Yunyan 76-235, columnId=1236256430060261740, journalTitle=Chinese Journal of Tropical Crops, columnName=Germplasm Resources, Genetics & Breeding, runingTitle=null, highlight=null, articleAbstract=

High yield with cold resistance clones is the core objective of rubber tree breeding in Yunnan. In this study, the cold-resistant clone GT1, which exhibits strong tolerance to radiative chilling injury, was selected as the female parent, and the widely cultivated fast-growing, high-yielding variety Yunyan 277-5 was used as the male parent. Through artificial isolated pollination, hybrid offspring were obtained. After a sexual family trial, individual plants with potentials were selected from the progeny population and entered into small-scale and large-scale clone comparative trials. This process led to the selection of an excellent clone, Yunyan 76-235, which is characterized by high yield and fast growth with the cold resistance and latex production type comparable to the clone RRIM600. Thirty years of systematic evaluation demonstrated that Yunyan 76-235 exhibits rapid early growth, with an average annual girth increment of 6.0 cm by the 6^th year after planting in the primary trial area, which is 115.4% of the clone RRIM600. It also shows high yield of dry rubber, with an average annual dry rubber yield per tree of 2.64 kg in years 1-5 of tapping in the small-scale clone comparative trials, representing 149.26% and 168.54% of the RRIM600 and GT1, respectively. In the large-scale clone comparative trials, the average annual rubber production per tree in years 1-13 of tapping was 4.6 kg, which is 140.12% of the RRIM600. Its cold resistance is stronger than that of RRIM600 but weaker than that of GT1 and Yunyan 77-4. The successful breeding of clone Yunyan 76-235 enriches the genetic resources for rubber cultivation in areas of Yunnan where prone to mild and moderate cold damage, providing variety support for the development and enhancement of the local rubber industry.

, authors=null, authorsList=Zhongliang LIU, Xiaojun GAO, Zaiyun XIAO, Suming HE, Huabo DU, Mingqian LI, Ligang HE, authorCompany=null, correspAuthors=Ligang HE, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1277254130397741723, articleId=1277254128908763799, tenantId=1146029695717560320, journalId=1235980609244409860, language=CN, title=橡胶树优良品种云研76-235的选育报告, columnId=1236256430219645304, journalTitle=热带作物学报, columnName=种质资源与遗传育种, runingTitle=null, highlight=null, articleAbstract=

抗寒高产一直是云南橡胶树育种的核心目标。通过选择抗辐射型、寒害能力强的品种GT1为母本，大规模推广的速生高产品种云研277-5为父本，采用人工隔离授粉，获得杂交后代，经过有性系比试验，从后代群体中选出优异单株，进入无性系初级比较试验和无性系高级比较试验，筛选出产量高、生长快、抗寒性和产胶类型与对照RRIM600相当的优良无性系云研76-235。30 a的系统鉴定表明，云研76-235早期生长快，在初级比较试验中，无性系定植后第6年，年平均茎围增长6.0 cm，为对照RRIM600的115.4%，干胶产量高，无性系1~5割年年均单株干胶产量为2.64 kg，分别为对照RRIM600和GT1的149.26%和168.54%；在高级比较试验中，无性系1~13割年，单株年平均产胶量为4.6 kg，为对照RRIM600的140.12%，抗寒能力强于RRIM600，弱于GT1和云研77-4。该品种的选育成功丰富了云南轻中寒害区橡胶种植的品种资源，为云南橡胶产业发展和提升提供品种支撑。

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刘忠亮（1973—），男，本科，副研究员，研究方向：橡胶树栽培、遗传育种、胶乳生理；

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刘忠亮（1973—），男，本科，副研究员，研究方向：橡胶树栽培、遗传育种、胶乳生理；

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