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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Seed Physiological Maturity in Dill (Anethum graveolens L.)) ผู้เขียน: บุญส่ง เอกพงษ์,  นางสุเทวี ศุขปราการ, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractSeed physiological maturity was studied to determine the optimum harvest time for dill seed production at the Faculty of Agriculture, Ubon Ratchathani University during October 2005 to March 2006. Seed reached physiological maturity at 35 days after anthesis with germination of 37.5%. At this stage seed moisture content was too high to harvest and germination percentage was low. The optimum time to commence harvesting should be after seed physiological maturity (45-70 days after anthesis) but before seed shedding. At these stages, seed color was dark brown with 9-12% seed moisture content. The highest seed germination (68.5%) was at 70 days after anthesis while seed started to shed. |
 ที่มา:การประชุมทางวิชาการของมหาวิทยาลัยเกษตรศาสตร์ ครั้งที่ 46หัวเรื่อง:การแก่ทางสรีรวิทยาของผักชีลาว |
ที่มา:การประชุมทางวิชาการของมหาวิทยาลัยเกษตรศาสตร์ ครั้งที่ 46หัวเรื่อง:การแก่ทางสรีรวิทยาของผักชีลาว |
หัวเรื่อง:ปริมาณ GA และ ABA ระหว่างการพัฒนาและการสุกแก่ของเมล็ดแตงกวา ผู้เขียน:ดร.ชวนพิศ อรุณรังสิกุล , Sutavee Sukprakarn, Shoji Shigenaga, Siriporn Chumsangchoteakul สื่อสิ่งพิมพ์:pdf AbstractThe physiological changes of Jed Bai and Puang cucumber seed were studied in rainy season during May August, 1991. Sed of both varieties reached its physiological maturity at 40 days after anthesis. The highest germination percentages of Jed Bai and Puang were obtained at 30 days and 25 days after anthesis, respectively while maximum viability was about 35 days after anthesis. Endogenous GA found in both varieties were GA1, GA3, GA4, GA7, GA19, GA20, GA24, and GA25. The highest total GA and ABA were obtained at 20 days after anthesis in both varieties but Jed Bai was higher in GA while Puang was higher in ABA than Jed Bai. First highest amount of ABA level was at 20 days after anthesis, the gradually decreased and peaked up again at 35 days after anthesis. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Evaluation of Soybean [Glycine max (L.) Merrill] Germplasm for Field Weathering Resistance using Seed Quality and SCAR Markers) ผู้เขียน:Nan Pa Pa Win, ดร.ประภา ศรีพิจิตต์, รองศาสตราจารย์ , ดร.วันชัย จันทร์ประเสริฐ, รองศาสตราจารย์ , ดร.วิภา หงษ์ตระกูล, รองศาสตราจารย์ , เฉลิมพล ภูมิไชย์ สื่อสิ่งพิมพ์:pdf AbstractForty-eight soybean varieties/lines along with resistance and susceptibility checks were grown at the National Corn and Sorghum Research Center, Nakhon Ratchasima province, Thailand in a randomized complete block design with three replications. At physiological maturity, soybean pods were harvested and subjected to incubator weathering, controlled deterioration and electrical conductivity tests to evaluate the seed quality. Soybean seed physical characteristics, including seed coat percentage, seed weight and seed coat color were also investigated. Two sequence characterized amplified region (SCAR) primers, Eaag/Mcac-233 and Eact/Mctt-157, previously reported to link with a quantitative trait locus (QTL) that controlled field weathering resistance, were used to amplify the DNA of the 50 soybean varieties/lines. The results revealed that 48 soybean varieties/lines were significantly different in seed quality and seed physical characteristics. They were classified into four groups: resistant, moderately resistant, moderately susceptible and susceptible to field weathering, according to the average germination percentage after incubator weathering and controlled deterioration. The overall field weathering resistance was found to correlate with seed quality and seed physical characteristics. The two highest correlation coefficients were found between field weathering resistance and germination percentage after incubator weathering (r = 0.898**) and controlled deterioration (r = 0.888**). The two SCAR primers were able to differentiate between resistance and susceptibility checks but were unable to classify field weathering resistance in 48 soybean varieties/lines. It was concluded that the two markers were not appropriate for evaluating field weathering resistance in the soybean varieties/lines. |
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