สืบค้นงานวิจัย
PROMISING CLONES OF HEVEA BRASILIENSIS EVOLVED BY ORTET SELECTION FROM A LARGE ESTATE
Mercykutty - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): PROMISING CLONES OF HEVEA BRASILIENSIS EVOLVED BY ORTET SELECTION FROM A LARGE ESTATE
ผู้แต่ง / หัวหน้าโครงการ (EN): Mercykutty
บทคัดย่อ (EN): Systematic screening of a large population of seeding mother trees was carried out at Cheruvally estate of Harrison Malayalam Limited in Central Kerala for selection of high yielding mother threes. Forty two ortets were finally selected based on yield, girth and bark parameters. These were cloned and evaluate in a small scale trial. Clonal performance was evaluated for yield and other secondary attributes during the first five years under tapping. The parameters evaluated include yield, girth and timber attributes. Significant clonal variation for all the traits was noted, which resulted in selection of eight promising primary clones. The clones designated from the estate from which they were evolved include Cy O 18, Cy O30, Cy O 31, Cy O 35, Cy O 41, Cy O 43, Cy O 48 and Cy O 72. With respect to GI on tapping, the highest annual girth increment on tapping was recorded by the clone Cy O 31 (5.36 cm) followed by Cy O 48 (4.27 cm) and Cy O 35 (4.12 cm) which was significantly superior to RRIM 600, a clone which is noted for high girth increment during tapping. Cy O 31, Cy O 43 and Cy O 48 were three ortets noted for high yield and high girth increment rate on tapping. Moreover, the high yielding capacity of these three clones combining high bole volume make them potential candidate clones for exploitation as latex timber (LT) clones in the future large scale evaluation and release of new clones. Three top ranking clones viz. Cy O 48, Cy O 41 and Cy O 35 recorded a mean yield of 67.67 g/t/t, 64.33 g/t/t and 60.37 g/t/t respectively and they were significantly superior in yield to that of RRII 105 with above average bole volume. Among these, Cy O 48 was the most promising selection in terms of yield, vigour and bole volume. The superiority of ortets with respect to yield and secondary characters is discussed in detail, giving emphasis to the eight final selections based on yield.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): immaturity period.
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Mercykutty. "PROMISING CLONES OF HEVEA BRASILIENSIS EVOLVED BY ORTET SELECTION FROM A LARGE ESTATE". ไม่ระบุหน่วยงาน. ม.ป.ป.

Mercykutty. "PROMISING CLONES OF HEVEA BRASILIENSIS EVOLVED BY ORTET SELECTION FROM A LARGE ESTATE". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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PROMISING CLONES OF HEVEA BRASILIENSIS EVOLVED BY ORTET SELECTION FROM A LARGE ESTATE
Mercykutty
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Promising latex timber clones of Hevea brasiliensis evolved by ortet selection TOWARD SELECTION OF IMPROVED HEVEA BRASILIENSIS CLONES FOR SOUTH KONKAN: LONG TERM PERFORMANCE OF ORTET CLONES Evaluation of some clones (Hevea brasiliensis) in a small scale trial in the southern part of Guatemala Studies on Cold Tolerance of Hevea brasiliensis (Muell. Arg.) Clones under Controlled Environmental Conditions Early Performance of some Clones of Hevea brasiliensis In Dry Sub humid Region of North Konkan Evaluation of Rubber (Hevea brasiliensis) Modern Clones under Certain Stressful Climatic Conditions of Odisha Cloning and expression of HbACO2 of Hevea brasiliensis Identification of Rubber Clones (Hevea brasiliensis) Using Inter Simple Sequence Repeat (ISSR) Markers Localization of Peroxidase Enzyme in the Bark of Hevea brasiliensis Plant Hormones and Oxidative Stress in Hevea brasiliensis
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