สืบค้นงานวิจัย
CORYNESPORA LEAF FALL ON RUBBER IN VIETNAM, CURRENT STATUS AND RECENT STUDIES
Phan Thanh Dung - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): CORYNESPORA LEAF FALL ON RUBBER IN VIETNAM, CURRENT STATUS AND RECENT STUDIES
ผู้แต่ง / หัวหน้าโครงการ (EN): Phan Thanh Dung
บทคัดย่อ (EN): Corynespora leaf fall (CLF) on rubber in Vietnam was first detected in 1999. Recently, this disease has been reached an epidemic stage. In 2009, it attacked nearly 2.000 ha rubber in highland and coastal region. Last year, more than 20.000 ha rubber in South East region, highland and coastal area was infected. RRIV 4 is the most susceptible clone for this disease. Almost of rubber clones in Vietnam are infected CLF at mild level except RRIV 2, RRIV 3 and RRIV 4 at severe level. Several seminars and workshops were held to guide the producers how to detect and control the disease. Fungicides (hexaconazole, carbendazim) in combine with farming practices have been successfully applied. The disease severity has reduced and the rubber has been recovered in several areas. However, at present, CLF has been detected in almost rubber planting areas in Vietnam. From the awareness of the importance of CLF, a research project has been set up and carried out with the aim of: Studying the genetic diversity of Corynespora cassiicola isolates using molecular marker techniques i.e. Inter Simple Sequence Repeat (ISSR) and rDNA ITS sequencing markers; Studying the pathogenicity and cross infection ability of C. cassiicola isolates obtained from different rubber clones and hosts; Early selection of resistant rubber clones to CLF; Looking for valuable fungicides with effective concentration to control CLF. From the result of this study, we have found that there are at least 2 distinct genetic groups of C. cassiicola that infect rubber and other hosts in Vietnam. Four isolates, of which two from rubber, one from papaya and one from white pumpkin were tested for cross infection ability. One isolates from rubber could infect papaya and white pumpkin while another isolate do not have this ability whereas both isolates from papaya and white pumpkin could infect all tested rubber clones. Several fungicides were tested for controlling CLF. Hexaconazole and carbendazim at 0.2-0.3% were shown to be effective to control this disease.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): carbendazim.
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
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Phan Thanh Dung. "CORYNESPORA LEAF FALL ON RUBBER IN VIETNAM, CURRENT STATUS AND RECENT STUDIES". ไม่ระบุหน่วยงาน. ม.ป.ป.

Phan Thanh Dung. "CORYNESPORA LEAF FALL ON RUBBER IN VIETNAM, CURRENT STATUS AND RECENT STUDIES". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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CORYNESPORA LEAF FALL ON RUBBER IN VIETNAM, CURRENT STATUS AND RECENT STUDIES
Phan Thanh Dung
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
MANAGEMNET OF CORYNESPORA LEAF FALL DISEASE OF RUBBER IN THE NURSERY DISEASE CAUSED BY BOTRYODIPLODIA THEOBROMEA PAT ON RUBBER TREE IN VIETNAM: CURRENT STATUS AND RECENT STUDIES The Effect of Weeding and Fungicide Treatments on the Development of Corynespora Leaf Fall Disease in Rubber Diversity Analysis of Corynespora cassiicola Isolated from Indonesian Rubber Plantations The Current Status of Three Common Leaf Disease of Para Rubber in Nigeria: Preliminary Investigations Disease Scenario of the Rubber Tree: History and Current Status EPIDEMIC OF CORYNESPORA LEAF FALL ON RUBBER ORCHARD IN COTE D'IVOIRE: ASSESSMENT IN VITRO OF CLONAL RESISTANCE AND FUNGICIDES EFFECTIVENESS. SUPPORTS OF THE VIETNAM RUBBER ASSOCIATION FOR RUBBER INDUSTRY Identification of Resistance of Hevea brasiliensis Clones to Corynespora Leaf Fall Disease CHEMICAL CONTROL OF OIDIUM LEAF FALL ON MATURE RUBBER ESTATES VIETANAM
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