สืบค้นงานวิจัย
Hevea Clonal Resistance to Wind Damage
Mokwunye M.U.B. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Hevea Clonal Resistance to Wind Damage
ผู้แต่ง / หัวหน้าโครงการ (EN): Mokwunye M.U.B.
บทคัดย่อ (EN): A field survey was conducted to determine the effect of wind damage on Hevea clones in a 40-hectre polyclonal garden at the Rubber Research Institute of Nigeria main Station, Iyanomo, Benin City, Nigeria. Nine Hevea clones were evaluated for resistance against wind damage, and these comprised six local (NIG. 800, 801, 802, 803, 804, 805) and three exotic (PR 107, GT1 and RRIM 707) clones parameters of the clones assessed were branch/trunk snapping, canopy load damage and root lodging. A total of 463 trees planted in a sub plot were sampled for each clone replicated thrice in three blocks investigated. Wind velocity was evaluated for three months-part of the rain stormy period from August to October, 2006. Results showed that mean percentage Hevea resistance to wind damage varied among the clones with the least and highest damage records ranging from 2.23 to 8.05% in RRIM 707 and NIG. 804, respectively, with intermediates scores. These low values obtained indicated that the clones were generally tolerant to wind damage effect. However, the least level of resistance recorded in NIG 804 was significantly different from other clones (LSD=5.83-410>3.85) except for NIG. 805 (LSD= 3.02<3.85) and NIG.802 (LSD=2.94<3.85). Average wind velocity recorded was generally low (1.7m per sec.) to produce any significant wind damage effect on the branch and trunk. Effect of wind damage on canopy load was significant (P<0.05). NIG. 804 was the most affected (87.83%) while the least effect in NIG 800 (16.42%). The high percentage value in NIG. 804 was significantly different from values obtained for other clones (LSD=39.77<71.41 – 46.15) except for NIG.802 (LSD=39.77>377.43). The susceptibility of canopy to wind damage was observed to be attributed to the heavy canopy load bearings. No appreciable incidence of root lodging could be obtained. Latex (biomass) yield in the period was high with a total output of 78,863.16kg. The present study reports Hevea clonal resistance to wind damage as well as provides suggestions in reducing incidence of canopy load damage in rubber plantations.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): clonal garden.
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
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Mokwunye M.U.B.. "Hevea Clonal Resistance to Wind Damage". ไม่ระบุหน่วยงาน. ม.ป.ป.

Mokwunye M.U.B.. "Hevea Clonal Resistance to Wind Damage". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Hevea Clonal Resistance to Wind Damage
Mokwunye M.U.B.
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
DISEASES OF RUBBER (Hevea brasiliensis) IN THE PHILIPPINES, CONTROL AND SCREENING FOR RESISTANCE Assessment of Rootstock Drought Resistance of Hevea with Root Hydraulic Conductance CLONAL VARIABILITY IN THE INCLINATION OF LATICIFERS AND PHLOIC RAYS IN HEVEA BRASILIENSIS Identification of Resistance of Hevea brasiliensis Clones to Corynespora Leaf Fall Disease Early Clonal Selection of Hevea brasiliensis Based on Latex Physiological Parameters in Cambodia Development of a Natural Rubber Dryer Based on Multi Energy Resources (Biomass, Solar and Wind) POST-INFECTIONAL CHANGES OF ENZYMES AND PROTEINS IN HEVEA BRASILIENSIS AND THEIR ROLE IN RESISTANCE TO CORYNESPORA CASSICOLA EPIDEMIC OF CORYNESPORA LEAF FALL ON RUBBER ORCHARD IN COTE D'IVOIRE: ASSESSMENT IN VITRO OF CLONAL RESISTANCE AND FUNGICIDES EFFECTIVENESS. Functional Characterization of a Novel Hevea â-1, 3-Glucanase Gene Promoter and Its Regulatory Role in Hevea and Tobacco Tissues Prevalence of primary HIV drug resistance in Thailand detected by short reverse transcriptase genotypic resistance assay
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