 ผลงานตีพิมพ์ในวารสารวิชาการQuantitative trait loci underlying root yield and starch content in an F1 derived cassava population (Manihot esculenta Crantz)ผู้แต่ง: Supajit Sraphet, Athipong Boonchanawiwat,  Dr.THANWANIT THANYASIRIWAT, Assistant Professor , Ratchdaporn Thaikerd, Sukhuman Whankaew, Dancan R. Smith, Opas Boonseng, David A. Lightfoot, Kanokporn Triwitayakorn, วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการCrystal structure of 3-[2-(1,3-thiazol-2-yl)diazen-1-yl]pyridine-2,6-diamine monohydrateผู้แต่ง:Chotima, R, Boonseng, B, Piyasaengthong, A, Dr.Apisit Songsasen, Associate Professor , Chainok, K, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการSSR and EST-SSR-based genetic linkage map of cassava(Manihot esculenta Crantz)ผู้แต่ง:Dr.THANWANIT THANYASIRIWAT, Assistant Professor, Supajit Sraphet, Athipong Boonchanawiwat, Opas Boonseng, Satoshi Tabata, Shigemi Sasamoto , Kenta Shirasawa, Sachiko Isobe , David A. Lightfoot, Sithichoke Tangphatsornruang, Kanokporn Triwitayakorn, วารสาร: 
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 หัวเรื่อง:อิทธิพลของฤดูปลูก พันธุ์ และอายุเก็บเกี่ยว ต่อคุณสมบัติทางชีวเคมีในหัวมันสำปะหลัง ผู้เขียน:Opas Boonseng, นางสาววิไล สันติโสภาศรี, ผู้ช่วยศาสตราจารย์, Anusart Soommart, Doljai Paetayakratok สื่อสิ่งพิมพ์:pdf AbstractA study on planting seasons, varieties and harvesting times affecting biochemical properties of cassava roots was conducted on six cassava varieties ; Rayong 1, Rayong 60, Rayong 90, Rayong 5, Kasetsart 50 and CMR33-57-81. The data collection was harvested at 6, 8, 10 and 12 months after planting. This experiment was studied on Warin soil series at Kham Talaesau Farm, Nakhon Ratchasima in early (May) and late (October) rainy seasons, 1996. The results of this study indicated that Rayong 90 and Kasetsart 50 gave high average starch content both in the early and late rainy planting seasons. Planting in early and late rainy seasons gave highest starch content at 8 and 12 months after planting, respectively. There were significant differences in the average content of starch between planting seasons. Biochemical properties of cassava roots like lipid and protein decrease starch viscosity and cause the rancidity of cassava starch. Phenolic compounds caused darkening of cassava starch. Moreover, the toxic cyanide and dense fiber imposed difficulties in industrial starch production process. The results of the study revealed that Rayong 90 gave low lipid, protein and fiber content and also Rayong 5 gave low cyanide and phenolic compounds content. Both lipid and phenolic compounds content were low at 6-8 months after planting. Protein and fiber content were low at 12 and 10 months after planting, respectively. Cyanide content was low during the rainy season and high during the dry season. Soil moisture content negatively correlated with cyanide content. There were no significant differences of the average contents of lipid, cyanide and phenolic among planting seasons. Amylose content and amylose size which determine physicochemical properties of starch were not different among cassava varieties. Harvesting cassava at early rainy season caused the reduction of amylose content and size, due to their regrowth as a result of amylose hydrolysis in which glucose was used as the energy source to produce their vegetative growth. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Effect of Genotypes and GE Interaction on Starch Content of Cassava) ผู้เขียน:ดร.ประเสริฐ ฉัตรวชิระวงษ์, รองศาสตราจารย์ , Opas Boonseng, Anusart Summatraya สื่อสิ่งพิมพ์:pdf AbstractThe objective of this study is to explore the effect of genotype and genotype x environment on starch content percentage of 5 cassava genotypes grown under several environments in early and late rainy seasons. The results indicated that there was less seasonal effect on genotypic performance. There was more GE interaction in late rainy season. The sum of squares of GE interaction was partitioned using 3 techniques, viz. linear regression (REG), using Eberhart and Russell (1966) stability, and Additive Main effects and the Multiplicative Interaction (AMMI) model in 2 principal component axes. The AMMI model can explain a large portion of sum of squares, and thus more effective in partitioning the GE interaction SS than the REG technique. Grouping of homogeneous environments using cluster analysis resulted in almost the same genotype ranking in each group. Environmental grouping can then be used to reduce the reversal GE interaction. |
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หัวเรื่อง:เสถียรภาพของพันธุ์มันสำปะหลังของไทยที่ปลูกต้นฤดูฝน ผู้เขียน:Opas Boonseng, เจริญศักดิ์ โรจนฤทธิ์พิเชษฐ์, ดร.เอ็จ สโรบล, ศาสตราจารย์ , นายปิยะ ดวงพัตรา, ศาสตราจารย์, ดร.ประเสริฐ ฉัตรวชิระวงษ์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractCrop performance under abroad range of environments can be studied to reveal cassava varieties with high yield stability. The objective of this study was to recommend cassava varieties for either a wide range of environments or specific environments. When the effect of variety x environment interaction was high, cassava variety yielded differently under different environments. Five cassava varieties, namely: Kasetsart 50, Rayong 1, Rayong 60, Rayong 90 and Sriracha 1, were grown in the early rainy season ( May 1992 ) over 9 environments. They were applied with mixed fertilizer 15-15-15 at the rate of 0, 313, 625 and 1,250 kg/ha. Only the data on dry root yield were analyzed. Results of the analysis, the Additive Main effects and Multiplicative Interaction (AMMI), indicated that Sriracha 1 was most stable when compared with the other varieties but yielded very low. Kasetsart 50 was moderately stable and gave high yield in several environments. Rayong 60 performed well at Khon Kaen Field Crops Research Center and Mukdahan Field Crops Experiment Station environments, whereas Rayong 90 performed well only at Maha Sarakarm Field Crops Experiment Station environment. |
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