สืบค้นงานวิจัย
PARAMETERIZATION AND TESTING A PHOTOSYNTHESIS MODEL OT RUBBER LEAVES
Krissada Sangsing - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): PARAMETERIZATION AND TESTING A PHOTOSYNTHESIS MODEL OT RUBBER LEAVES
ผู้แต่ง / หัวหน้าโครงการ (EN): Krissada Sangsing
บทคัดย่อ (EN): The biochemically based model of leaf photosynthesis and stomatal conductance model, the versions that modified by le Roux et.al., (1999) were used to parameterize and to test for rubber. The key parameters of the photosynthesis model were determined from the response of photosynthesis to CO2concentration and leaf irradiance. While, the key parameters of the stomatal conductance model were determined from the stomatal conductance response to leaf irradiance (Q), leaf temperature (T1) water vapor pressure deficit at the leaf surface (D) and air CO2 concentration at the leaf surface (Cs). The there key parameters of the photosynthesis model (maximum carboxylation rate Vcmax maximum electron transport capacity Jmax and dark respiration rate Rd) and the key parameter of the stomatal conductance model (reference stomatal conductance, gsref) were linearly correlated with the amount of leaf nitrogen per unit leaf area (Na). This relationship could be used to describe nitrogen effects on these parameters for leaf from both rubber clones (RRIM 600 and RRIT 251). Nitrogen use efficiency expressed as Vcmax/Na and JmaxNa of RRIM 600 were significantly greater than those of RRIT 251. Influence of leaf temperature on photosynthetic capacity was observed. At a given temperature, an increasing Vcmax of RRIM 600 was greater than that RRIT 251. Strong correlations were found between stomatal conductance (gs) and Q,D, T1 and Cs. To test the model parameters, measurements were made on varies leaf age for both clones. Despite a large variance between measured and simulated in stomatal conductance values, an increasing of simulated values with increase of measured values were observed. The model predicted photosynthesis exhibited well at leaf scale for both clones. The results indicated that the photosynthesis-stomatal conductance model developed here could be applied to rubber tree both at branch scale and canopy scale
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): Hevea
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Krissada Sangsing. "PARAMETERIZATION AND TESTING A PHOTOSYNTHESIS MODEL OT RUBBER LEAVES". ไม่ระบุหน่วยงาน. ม.ป.ป.

Krissada Sangsing. "PARAMETERIZATION AND TESTING A PHOTOSYNTHESIS MODEL OT RUBBER LEAVES". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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PARAMETERIZATION AND TESTING A PHOTOSYNTHESIS MODEL OT RUBBER LEAVES
Krissada Sangsing
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Effect of Temperature Constraints on Photosynthesis of Rubber (Hevea brasiliensis) Rajtree Model Program For the Philippine Rubber Development Recent advances on biotechnology in rubber tree Reverse Engineering of Rubber and Rubber Products MODEL OF DEVELOPING AND STRENGTHENING OF RUBBER NURSERY INSTITUTIONAL TO IMPROVE THE QUALITY OF PLANTING MATERIAL AND PRODUCTIVITY OF INDONESIAN RUBBER SMALLHOLDINGS Supercritical Fluid Extraction of Flavonoids from Hevea Leaves ANALYSIS OF PRETREATMENT METHODS OF WASTE RUBBER TREE FOR EFFECTIVE CELLULOSE DEGRADATION SUPPORTS OF THE VIETNAM RUBBER ASSOCIATION FOR RUBBER INDUSTRY ORGANIZING PROFICIENCY TESTING FOR NATURAL RUBBER LABORATORIES – EXPERIENCE OF RRIV SECI Model
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สนับสนุนโดยสำนักงานพัฒนาการวิจัยการเกษตร (องค์การมหาชน)Supported by the Agricultural Research Development Agency (Public Organization)
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