สืบค้นงานวิจัย
IMPROVEMENT OF RUBBER TREES’ PRODUCTIVITY IN SMALLHOLDING BY THE INTRODUCTION OF UPWARD TAPPING
Samuel OBOUATEBA - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): IMPROVEMENT OF RUBBER TREES’ PRODUCTIVITY IN SMALLHOLDING BY THE INTRODUCTION OF UPWARD TAPPING
ผู้แต่ง / หัวหน้าโครงการ (EN): Samuel OBOUATEBA
บทคัดย่อ (EN): In smallholding 9 to 12 years of downward tapping on virgin bark are followed by downward tapping in renewed bark, with the result that the whole period of exploitation can barely exceed 20 years, whereas in industrial plantations, the introduction of upward tapping enables up to 36 years of exploitation. An experiment was set up in order to evaluate the feasibility of upward tapping in smallholding conditions in four locations, Downward tapping on renewal bark ( ½ S d/3 6d/7 Et 2.5% pa 1/1 10/y) was compared to upward tapping on virgin bark; ¼ Sr d/3 6d/7 Et 5% pa 1/1 10/y and ½ Sr d/6 6d/7 Et 2.5% pa 2/1 10/y. Tapping systems performances were assessed for rubber production, vegetative growth, physiological profile and the tapping panel dryness susceptibility of rubber trees. The productivity of the downward tapping, on first renewal bark, is satisfactory, but significantly lower than productivities of upward tapping systems on virgin bark. Compare to downward tapping on renewed bark, upward tapping on virgin bark increase the productivity of rubber tree of about 34% for the quarter spiral and 36% for the half spiral. Globally, the physiological profile of all tested systems are good, with little occurrence of tapping panel dryness. These results show that the upward tapping on virgin panel, especially the upward quarter of spiral, is the best tapping system of trees in smallholding
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): tapping panel dryness.
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
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IMPROVEMENT OF RUBBER TREES’ PRODUCTIVITY IN SMALLHOLDING BY THE INTRODUCTION OF UPWARD TAPPING
Samuel OBOUATEBA
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Yield Performance of Controlled Upward Tapping Systems in Relation to Tree, Land and Labour Productivity Recent advances on biotechnology in rubber tree ANALYSIS OF PRETREATMENT METHODS OF WASTE RUBBER TREE FOR EFFECTIVE CELLULOSE DEGRADATION Genomics Assisted Crop Improvement – Applications and Potential in Tree Improvement THE “DOUBLE CUT ALTERNATIVE” (DCA) TAPPING SYSTEM: AN INNOVATIVE TAPPING SYSTEM DESIGNED FOR THAI RUBBER SMALLHOLDINGS USING HIGH TAPPING FREQUENCY RESULTS AFTER TEN YEARS OF TAPPING Differential expression of mitochondrial pyruvate dehydrogenase gene correlates with latex yield and tapping in rubber tree IMPACTS OF LOW FREQUENCY TAPPING ON PRODUCTIVITY AND PRODUCTION COST : A CASE STUDY OF RUBBER INDUSTRY IN VIETNAM EVOLUTION OF SOIL FERTILITY AND ITS CORRELATION WITH RUBBER TREE LEAF NUTRITION IN RUBBER PLANTATION Transcriptome Analyses Reveal Molecular Mechanism Underlying Tapping Panel Dryness of Rubber Tree (Hevea brasiliensis) RESOURCE PRODUCTIVITY AND EFFICIENCY OF RUBBER SMALLHOLDERS IN NIGERIA
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