สืบค้นงานวิจัย
RESPONSE OF SOME SRILANKAN RUBBER CLONES TO GASEOUS STIMULATION IN TAPPING: A PRELIMINARY INVESTIGATION
V.H.I Rodrigo - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): RESPONSE OF SOME SRILANKAN RUBBER CLONES TO GASEOUS STIMULATION IN TAPPING: A PRELIMINARY INVESTIGATION
ผู้แต่ง / หัวหน้าโครงการ (EN): V.H.I Rodrigo
บทคัดย่อ (EN): With no success in mechanised tapping, the Low frequency Tapping (LFT) systems are found to be the only option available to address the main issues in the rubber tapping such as shortage of tappers, high level of cost on tapping, poor earnings of tappers and high level of bark consumption reducing the lifespan of rubber tree. Ethylene gas is an effective stimulant in LFT and those gaseous stimulate tapping (GST) systems are considered to be successful in addressing above issues with high yields given and reduced bark consumption. However, no systematic studies on these systems have been conducted with the clones developed in Sri Lanka. Therefore, the present study was aimed to assess the effectiveness of the gaseous stimulation in tapping with Sri Lankan clones under local conditions. A GST system was set up in the Rubber Research Institute of Sri Lankan (RRISL) in six tapping blocks with two clones and also in another six estates at different scales as stakeholder collaborative trials. The tapping system of 1/8S(↑) d/3 ET(G) 1/10d was applied except for except for two tapping blocks, one from each clone in the RRISL where 1/8S(↓) d/3 ET(G) 1/10d was tested. With initial observations made for two months, the frequency of tapping and gassing of GST was reduced in the experimental site of the RRISL leaving two tapping blocks as originally set up for upward and downward tapping. Data on latex yields were continuously monitored where possible with the records on bark conditions. With few exceptions, latex yields were very high with the GST at the beginning and thereafter tended to decline and in some cases, up to the values recorded in the control blocks with the traditional tapping system. Yields given by the downward tapped GST was comparable with that of the control tapping blocks, particularly in the clone RRIC 100. Thepercentage dry rubber content of the latex (%DRC) also dropped with the application of gaseous stimulation and fell below 30%, except in the clone RRIC 121. Bark wounds connected with bark rotting were developed in some trees of all GST blocks and in some cases, this was associated with borer attacks. However, the above bark deterioration appeared to be less severe in occasions where gassing frequency was reduced. Number of trees affected with Tapping Panel Dryness (TPD) was greater in the GST blocks when compared to that recorded in the control blocks. Therefore, the present study emphasizes the needs of further investigations to identify suitable intensities of tapping and gassing with GST, if it is to be applied under Sri Lankan conditions.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): low frequency tapping.
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

V.H.I Rodrigo. "RESPONSE OF SOME SRILANKAN RUBBER CLONES TO GASEOUS STIMULATION IN TAPPING: A PRELIMINARY INVESTIGATION". ไม่ระบุหน่วยงาน. ม.ป.ป.

V.H.I Rodrigo. "RESPONSE OF SOME SRILANKAN RUBBER CLONES TO GASEOUS STIMULATION IN TAPPING: A PRELIMINARY INVESTIGATION". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



TARR Wordcloud:
RESPONSE OF SOME SRILANKAN RUBBER CLONES TO GASEOUS STIMULATION IN TAPPING: A PRELIMINARY INVESTIGATION
V.H.I Rodrigo
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
The Effect of Accelerator Combination of the Curing System on the Physical Properties of the Natural Rubber and Ethylene Propylene Diene Monomer Rubber Blends Comparison in Hydraulic Response to Water Stress Tolerance of Two Rubber Clones Evaluation of Gaseous Stimulation on Panel BO-2 Raw Rubber Properties of New Clones Introduced by Rubber Research Institute of Sri Lanka PERFORMANCES OF NEW PROMISING VIETNAMESE RUBBER CLONES OPTIMIZED EXPLOITATION SYSTEM FOR VARIOUS RUBBER CLONES ANALYSIS OF PRETREATMENT METHODS OF WASTE RUBBER TREE FOR EFFECTIVE CELLULOSE DEGRADATION Investigation on a new rubber based farming system in China TAPPING SYSEM AND STIMULATION OF RUBBER IN HEAVY RAINFALL CONDITION BIOMOLECULES CONTENTS AND RUBBER PROPERTIES OF SOME HEVEA BRASILIENSIS CLONES
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