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Impact of Salicylic Acid Treatment to Enhance Drought Tolerance of Nursery Rubber Plants (Hevea brasiliensis Mull.Arg) When Introducing Them to Monaragala District in the Intermediate Zone of Sri Lanka
S. A. Nakandala - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Impact of Salicylic Acid Treatment to Enhance Drought Tolerance of Nursery Rubber Plants (Hevea brasiliensis Mull.Arg) When Introducing Them to Monaragala District in the Intermediate Zone of Sri Lanka
ผู้แต่ง / หัวหน้าโครงการ (EN): S. A. Nakandala
บทคัดย่อ (EN): Present experiment was conducted in Monaragala District, in the Intermediate zone of Sri Lanka (Average rainfall <1623 mm, with distinct dry period during June-August) to examine if treatment of rubber nursery plants with Salicylic acid (SA), would elevate the drought tolerance of the nursery plants. Five SA concentrations (0mM, 0.05mM, 0.1mM, 0.5mM, 1mM) were tested with soil drench and foliar application to determine the concentration of Salicylic acid which could improve the drought tolerance of rubber nursery plants at Monaragala substation, Rubber Research Institute of Sri Lanka during the dry months of June – August, 2011. Design of the experiment was factorial randomized complete block design (RCBD). Soil physical properties, permanent wilting point (PWP) of rubber nursery plants and the depletion level of available soil water content that could affect on the plant growth were tested prior to apply imp SA. Subsequently soils were saturated with water and kept at the field capacity was reached. Plants were treated with 100 ml of SA per plant with the above concentrations and subjected to water stress. Stress tolerance was monitored by observing the wilting patterns of the plants throughout the stress cycle of 21 days until, plants reached their permanent wilting point. Soil physical properties of bulk density, true density and porosity of the potting media of nursery plants were 1.32 g/cm3, 2.5 g/cm3 and 48% respectively. PWP of the rubber seedlings was 4.3%. Out of all treatments, rubber nursery plants treated with 0.5 mM SA as soil drench, showed a significant enhanced tolerance to the drought. Furthermore avenues are opened to elevate the depletion level up to 70% by using salicylic acid 0.5 mM concentration for the better growth and development of rubber nursery plant while reducing the irrigation need of the plants. Salicylic acid treatment with irrigation was found to be a promising and a feasible physiological approach to increase the drought tolerance of rubber nursery plants.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): soil physical properties
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

S. A. Nakandala. "Impact of Salicylic Acid Treatment to Enhance Drought Tolerance of Nursery Rubber Plants (Hevea brasiliensis Mull.Arg) When Introducing Them to Monaragala District in the Intermediate Zone of Sri Lanka". ไม่ระบุหน่วยงาน. ม.ป.ป.

S. A. Nakandala. "Impact of Salicylic Acid Treatment to Enhance Drought Tolerance of Nursery Rubber Plants (Hevea brasiliensis Mull.Arg) When Introducing Them to Monaragala District in the Intermediate Zone of Sri Lanka". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Impact of Salicylic Acid Treatment to Enhance Drought Tolerance of Nursery Rubber Plants (Hevea brasiliensis Mull.Arg) When Introducing Them to Monaragala District in the Intermediate Zone of Sri Lanka
S. A. Nakandala
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
FEASIBILITY OF RUBBER (Hevea brasiliensis Mull. Arg.) CULTIVATION IN THE EASTERN PROVINCE OF SRI LANKA; A NON TRADITIONAL AREA FOR RUBBER An Integrated Method for the Management of White Root Disease in Rubber Plantations in Sri Lanka Drought Tolerance in Transgenic MsSOD Hevea brasiliensis in A Dry Humid Environment Components of Inorganic Phosphates in Rhizosphere of Rubber Tree (Hevea brasiliensis) Expression of NAC Transcription Factor under Drought Stress in Hevea brasiliensis Elephant Dung as Potting Medium for Root Trainer Plants of Rubber (Hevea brasiliensis) Studies on Cold Tolerance of Hevea brasiliensis (Muell. Arg.) Clones under Controlled Environmental Conditions Development and Promotion of Rubber (Hevea brasiliensis Muell Arg.) Towards Commercialization in Oriental and Occidental Mindoro Effect of Temperature Constraints on Photosynthesis of Rubber (Hevea brasiliensis) TOWARD SELECTION OF IMPROVED HEVEA BRASILIENSIS CLONES FOR SOUTH KONKAN: LONG TERM PERFORMANCE OF ORTET CLONES
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