สืบค้นงานวิจัย
Effect of High Density Planting on Growth and Yield of Selected RRIM 2000 Series
Zulkefly Sulaiman - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Effect of High Density Planting on Growth and Yield of Selected RRIM 2000 Series
ผู้แต่ง / หัวหน้าโครงการ (EN): Zulkefly Sulaiman
บทคัดย่อ (EN): Rubber smallholders sectors play a significant role in the growth and development of the Malaysian rubber industry with contributed 94.6% of the total rubber production in Malaysia. Although there is an important contribution by the rubber smallholders sector, the majority of them to be plagued by persistent low productivity and income largely due to uneconomic size of holding, planting of non-recommended clones, low adoption of technology, capital deficiency and unstable of rubber price in the past. With the low yield of rubber (average 1480 kg per hectare, 2010) from the rubber smallholders, several approaches have been developed by Malaysian Rubber Boar to increase land productivity and income. One of the approaches is through adopting density planting. A study on the effect of high density planting of rubber on growth and yield of rubber was conducted at FELDA Jenderak Utara. Tenerloh, Pahang, Malaysia, on Durian and Gajah Mati soil series, started from February 2000. The treatments study were (i) Planting densities, i.e. 500 trees/ha (4m x 5m), 700 trees/ha (4m x 3.6m), and 1000 trees/ha (4m x 2.5m) and (ii) rubber clones i.e. RRIM 2025, RRIM 2016 and RRIM 2001. The treatments were arranged according to the Split Randomized Complete Block Design (RCBD) with three replications. The results found there were significant effects of planting density and clone on growth (girth) of rubber, 63 months after planting. Densities of 500 trees and 700 trees/ ha had higher growth (girth) compared to density of 1000 trees/ha with mean of 47.4 cm = 47.2 cm > 44.1 cm, respectively, 63 months after planting. Clone RRIM 2025 had higher growth (girth) compared to RRIM 2016 and RRIM 2001 with mean of 48.3 cm > 46 cm = 44.6 cm, respectively. The densities of 500 and 700 trees/ha produced higher tree productivity (g/t/t) at the second year of tapping compared to the density of 1000 trees/ha with means of 64.9 g/t/t = 64.2 g/t/t >52.9 g/t/t, respectively with tapping system of 1/25 D3 SEN (8xyear). However< there was no significant effect of clone on tree productivity during the same period of tapping (RRIM 2025 = RRIM 2001 = RRIM 2016 with mean of 64.7 g/t/t = 6.3 g/t/t = 59.0g /t/t, respectively) Survey on bark thickness was conducted, 84 months after planting. The result found. The result found, the density of 500 and 700 trees/ha had thicker bark thickness compared to the density of 1000 trees/ha with means of 8.6 mm>8.1 mm>7.0 mm, respectively. Clone of RRIM 2025 had thicker bark thickness compared to the clone RRIM 2016 and RRIM 2001 with means of 8.6 mm > 7.6 mm > 7.1 mm, respectively. Density of 1000 trees/ha had higher clear bole volume (m3/tree) compared to the density of 700 and 500 trees/ha with means of 0.107 m3/tree > 0.77 m3/tree) = 0.076 m3/tree< respectively, 84 months after planting. Clone of RRIM 2025 had higher clear bole volume compared to the clone RRIM 2016 and RRIM 2001 with means of 0.098 m3/tree > 0.080 m3/tree = 0.078 m3/tree, respectively, 84 months after planting.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): http://clinic.rubberboard.org.in/PDF/ircpdf/CM-02%20high%20%20density%20planting,%20karala%20india23.10.10.pdf
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): high density planting
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
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Zulkefly Sulaiman. "Effect of High Density Planting on Growth and Yield of Selected RRIM 2000 Series". ไม่ระบุหน่วยงาน. ม.ป.ป.

Zulkefly Sulaiman. "Effect of High Density Planting on Growth and Yield of Selected RRIM 2000 Series". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Effect of High Density Planting on Growth and Yield of Selected RRIM 2000 Series
Zulkefly Sulaiman
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
EFFECTOS OF PLANTION DENSITY TO GROWTH AND YIELD ATRIBUTES OF RUBBER TREES AT DIFFERENT STAGES Growth and Early Yield of RRIM 2000 Series Clones in Trial and Commercial Plantings EFFECT OF PLANTING DENSITY ON GROWTH AND YIELD OF RUBBER (HEVEA BRASILINENSIS) IN NORTH EASTERN INDIA High Density Planting in Rubber Plantations Growth response to population density in larval stage of darkling beetles (Coleoptera; Tenebrionidae) Tenebrio molitor and Zophobas atratus Is impeded root growth related to the occurrence of rubber tree Trunk Phloem Necrosis (TPN)? Preliminary results from NE Thailand Effect of Waterlogging at Different Growth Stages on Growth and Yield in Hibiscus cannabinus (Kenaf), H. sabdariffa (Roselle) and Corchorus olitorius (Jute) Optimization of parameters for the preparation of high yielded activated carbon from banana trunk The dynamic linkage among the size, growth and profitability of listed companies in the ASEAN-4 countries High Density Planting – An Option for Higher Productivity of Rubber in North Eastern Region of India
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