สืบค้นงานวิจัย
HEVEA BRASILIENSIS: RESULTS FROM THE CAMBODIAN LARGE SCALE CLONE TRIALS IN 2011
Phen Phearun - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): HEVEA BRASILIENSIS: RESULTS FROM THE CAMBODIAN LARGE SCALE CLONE TRIALS IN 2011
ผู้แต่ง / หัวหน้าโครงการ (EN): Phen Phearun
บทคัดย่อ (EN): In order to update the clonal recommendations in Cambodia, a set of 14 Large Scale Clonal Trials (LSCT) was analysed globally for 36 clones, based on linear adjustments of the data from each trial. Although this method was statistically not very powerful, it made possible to compare all the clones between each other, whatever the trials in which they were set. Among the 36 clones, the adjusted mean girth at opening varied from 41 cm (RRIC102) to 52 cm (PB235), with a medium group of 20 clones (including GT1) varying from 46 cm to 48 cm. The cumulated yield over the first 7 years of tapping (Cum1-7) varied from 5279 kg/ha (K2) to 14935 kg/ha (IRCA130). The ranking of the clones by decreasing girth at opening was as following : PB235, PB330, IRCA130, IRCA209, PB280, IRCA111, KV4, IRCA230, TJIR1, PR261, IRCA209, PB310, PB254, GT1, AVROS208, PB255, PB260, RRIC121, IRCA18, RRIM600, RRIC101, RRIM712, PB314, PB217, KHA9, PR306, BPM24, PR303, PR255, K2, IRCA41, PR300, PR107, PB324, PB86, and RRIC102. The ranking of the clones by decreasing cumulated yield over 7 years of tapping (Cum1-7) was as following : IRCA130, PB235, KV4, RRIC101, IRCA109, PB314, RRIM712, PB280, PB260, IRCA230, RRIM600, PB330, PB310, PR303, IRCA111, RRIC121, PB255, IRCA41, PB254, PB217, PR300, PR255, BPM24, IRCA18, PR306, IRCA209, PB324, GT1, PB86, KHA9, PR261, PR107, RRIC102, AVROS308, TJIR1, and K2. The relationships between girth at opening and yields were examined, and a method was carried out for making cumulated yields independent from girth at opening (Cum1-7reg). However this correction had important effects only for the two extreme clones PB235 (highest vigour) and RRIC102 (lowest vigour). There was a good correlation between the initial yield of the first four years (Cum1-4) and the later yield from year 5 to year 7 (Cum5-7) with R² = 0.40. Girth at opening partly explained the initial yield (R² = 0.37), but its correlation with the later yield was non significant (R² = 0.09). Initial yield was generally higher than later yield for high-yielding clones, and the opposite was found for low-yielding clones. By decreasing order of Cum1-7, the clones with initial yield higher than later yield were IRCA130, PB235, RRIC101, PB314, PB280, PB260, IRCA230, IRCA111, PB255, IRCA18, and IRCA209 (group A, quick-starters). The clones with initial yield equivalent to later yield were KV4, IRCA109, RRIM712, RRIM600, PB330, PB310, IRCA41, PB254, PB217, PR300, PR255, BPM24, GT1, PB86, and PR261 (group B). The clones with later yield higher than initial yield were PR303, RRIC121, PR306, PB324, KHA9, PR107, RRIC102, AVROS308, TJIR1, and K2 (group C). These results were submitted to a critical discussion for application to clonal recommendations.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://agritrop.cirad.fr/563767/1/document_563767.pdf
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): yield
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Phen Phearun. "HEVEA BRASILIENSIS: RESULTS FROM THE CAMBODIAN LARGE SCALE CLONE TRIALS IN 2011". ไม่ระบุหน่วยงาน. ม.ป.ป.

Phen Phearun. "HEVEA BRASILIENSIS: RESULTS FROM THE CAMBODIAN LARGE SCALE CLONE TRIALS IN 2011". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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HEVEA BRASILIENSIS: RESULTS FROM THE CAMBODIAN LARGE SCALE CLONE TRIALS IN 2011
Phen Phearun
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Results of Some Hevea Clones from the Large Scale Clone Trials in Cambodia First Five Years Results of Some Promising Clones from Large Scale Clone Trials in Cambodian Rubber Research Station Evaluation of some clones (Hevea brasiliensis) in a small scale trial in the southern part of Guatemala COMPARATIVE CLONAL STUDIES IN CAMBODIAN RRI FIRST RESULTS FROM 4 RUBBER LARGE SCALE CLONAL TRIALS IN CAMBODIA PERFORMANCE OF FIVE HIGH YIELD HEVEA CLONES IN A LARGE SCALE CLONE TRIAL IN YUNNAN Promising latex timber clones of Hevea brasiliensis evolved by ortet selection Yield Modeling and Analysing the Critical Factors of Productivity of Natural rubber (Hevea brasiliensis) Effect of fertilization on latex yield potential and physiological parameters of clone PB 217 in Cambodia Lipid composition of Hevea brasiliensis latex and dry rubber: characterization and relation with some physical properties Evaluation of ground basalt as soil amelioration in relation to growth and nutrition of Hevea brasiliensis grown in polybags
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