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ผลงานตีพิมพ์ในวารสารวิชาการEvaluation of F1 and F2 generations for yield and yield components and fiber quality parameters on cotton (Gossypium hirsutum L.) under Werer, Ethiopia conditionผู้แต่ง: Desalegn Z.,  Dr.Ngamchuen Ratanadilok, Associate Professor , Dr.Rungsarid Kaveeta, Associate Professor , Mr.Pradit Pongtongkam, Emeritus Professor, Mr.Ananchai Khuantham, Associate Professor, วารสาร: 
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : A study on Germination of Mungbean, Upland Rice, Sorghum and Millet Seed under Drought Condition) ผู้เขียน:วิเชียร อุ่นเรือน, นายชัยฤกษ์ มณีพงษ์, รองศาสตราจารย์, ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe objectives of this study were to evaluate the influence of drought condition on germination of four crop seeds; mungbean, upland rice, sorghum and millet, and the tolerance under three drought. If this method is effective, it will be used for drought tolerant screening in breeding program. The least drought tolerance was mungbean seeds. They could not germinate normally at -5 bars. Upland rice germination percentage but not different at all three levels. For these results, drought condition that should be used for selecting drought tolerant varieties of mungbean, upland rice, sorghum and millet were less than -5 bars, between -5 and -10 bars, more than -10 bars and less than -10 bars, respectively. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Backcross Techniques in Transferring Insect Resistance and Good Fiber Qualities to Naturally Colored Cotton) ผู้เขียน:ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์, ดร.ประภารัจ หอมจันทน์, ศาสตราจารย์ , นางอรุณี วงศ์ปิยะสถิตย์, ศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe backcross method was used to transfer traits of resistance with regard to some cotton insects and the good fiber qualities of Salid 1 (SD1) and 413, the recurrent parents, respectively, to naturally colored cotton varieties, the non recurrent parents, (Green, Dark Green, Brown and Red Brick). The experiment was conducted at Suwan Farm, Nakhon Ratchasima from 2002 to 2006. Both the parent types and backcross progenies (SD1green, SD1dark green, SD1brown and SD1red brick) obtained were compared in terms of yield, fiber qualities and hopperburn rate during 2006 to 2008. The results indicated that in 2006, all backcrosses gave significantly lower seed cotton yields than those of their recurrent and non recurrent parents, except SD1green and SD1brown. In 2007, only SD1 red brick had a significantly higher yield than that of its non recurrent parent, Red Brick. There were no significant differences in terms of 2008 agronomic performance among all parents and the backcrosses. The high volume instrument (HVI) average results showed that all backcrosses, except SD1 413, had the fiber length determined as short. Fiber strength (g/tex) of each backcross also expressed better results than that of its recurrent parents. Only SD1 redbrick showed improved fiber elongation compared with its non recurrent parent, though it was only slight. The naturally colored cotton varieties, Brown and Dark Green, were significantly lower than their progenies, SD1brown and SD1 dark green, in terms of leafhopper numbers, during the years 2006 and 2007, respectively. In 2006, all backcrosses had a hopperburn rating slightly better than that of both their parents. The 2007 ratings of most backcross progenies were equal to the parents, except for SD1 green and SD1 brown, which were better. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Temperate Cereal Improvement for Sustainable Agriculture Powdery Mildew Resistence in Barley Lines (Powdery Mildew, Erysiphe graminis DC. ex Merat hordei Marchat)) ผู้เขียน:ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractDuring 1991-92, several promissing barley lines from the Temperate Cereal Improvement project were tested in replicated trial for grrain yield potential for malt quality and diseases at the Royal Angkhang stations. Seed samples were taken from the selected lines to Denmark in 1992 for further tests both in the green house for powdery mildew reaction and in the laboratory for final malt quality. The results indicated that there were some high potential barley lines concerning malt quality and disease resistance. Thai 1,2,4 and Thai 5 were powdery mildew resistance with different genetic background and the Thai 2 and 5 were both resistance to the disease and acceptable for malt quality. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Stomatal Size, Stomatal Frequency and Pollen Grain Diameter as Indirect Method for Identification of Ploidy Levels in Cotton) ผู้เขียน:นางอรุณี วงศ์ปิยะสถิตย์, ศาสตราจารย์, ดร.ประภารัจ หอมจันทน์, ศาสตราจารย์, Katarut Chusreeaeom, ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractSeeds of diploid local variety cotton (Gossypium arboreum), PM2, were treated with 0, 0.1 and 0.5% colchicine solutions at duration of 24 and 36 hours for polyploidy induction. Seed germination, seedling survival, stomatal size, stomatal frequency, percent pollen grain sterility and pollen grain diameter were recorded. The results showed seed germination, seedling survial and stomatal frequency to be negatively correlated with colchicine concentrations and durations of seed soaking while numbers of plant having large stomatal size and % pollen grain sterility have positive correlation. Stomatal size increased whereas stomatal frequency decreased. No correlation between pollen grain diameter and colchicine concentrations as well as durations of seed soaking was found. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Correlation and Heritability for Yield and Fiber Quality Parametersof Ethiopian Cotton (Gossypium hirsutum L.) Estimated from 15(diallel) Crosses) ผู้เขียน:Zerihun Desalegn, ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์, ดร.รังสฤษดิ์ กาวีต๊ะ, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractCorrelation and heritability estimates of the yield and the fiber or lint quality were determined using 15 F1 cotton hybrids obtained from a diallel cross made in the Werer Agricultural Research Center, in Ethiopia, in 2003. The results indicated that the seed cotton yield was highly genetically correlated to boll weight (r = 0.99**), lint yield (r = 0.88**) and lint index (r = 0.96**). The lint yield was highly correlated to lint percentage (r = 0.94**) and the number of seeds per boll (r = 0.96**). The results illustrated that a high lint percentage, more bolls per plant and a small seed size were positively correlated to high cotton lint yield. Fiber strength was highly correlated to all fiber quality parameters and positive correlations were found between staple length 2.5% (r = 0.99**) staple length 50% (r = 0.64**) and fiber strength. A positive correlation was also found between the fineness indicator (micronaire) and the uniformity ratio (r = 0.61**). However negative correlations were observed between fiber length and the fineness indicator (micronaire) (r = -0.86**), short fiber index (r = -0.85**) and uniformity ratio (r = -0.99**). Negative genetic correlation coefficients of lint percentage and lint yield with fiber strength were quite high (r = -0.99 and r = -0.96**, respectively), but they had a positive correlation with the fiber-fineness indicator or micronaire (r = 0.99** and 0.79**, respectively). The broad-sense heritability estimates of the yield and yield components were high for lint percentage (h2 = 97%), lint yield (h2 = 72%), lint index (h2 = 79%) and seed index (h2 = 86%). As they also had a strong relationship with other fiber quality parameters as well, they could be considered as indicators of the yield and fiber quality improvement in cotton. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Evaluation of F1 and F2 Generations for Yield and Yield Components and Fiber Quality Parameters on Cotton (Gossypium hirsutum L.) Under Werer, Ethiopia Condition) ผู้เขียน:Zerihun Desalegn, ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์, ดร.รังสฤษดิ์ กาวีต๊ะ, รองศาสตราจารย์, นายประดิษฐ์ พงศ์ทองคำ, ศาสตราจารย์เกียรติคุณ, Ananchai Kuantham สื่อสิ่งพิมพ์:pdf AbstractDue to the difficulty of producing F1 hybrid seed, the use of heterosis in cotton (Gossypium hirsutum L.) has been limited. This study was conducted on fifteen F1, fifteen F2 and 6 parental genotypes obtained from partial diallel cross of 6 varieties with the objectives of comparing the parents, F1 and F2 generations and to identify the competitive potential of F2 hybrids over the best yielding cultivars for yield component and fiber quality parameters. It was evident to find the seedcotton and lint yield superiority of F1 hybrid over parents and F2 generations. F1 hybrids showed an overall seedcotton yield advantage of F1 over the parental means of 26.4 %, while F2 hybrids were 9.3%. Best F1 hybrids showed 19.5% yield advantage over the best check parent, while best F2 hybrids were only 2.5%. Almost the same pattern was observed for lint yield with the level of heterosis at 28.6, 10.2, 30.4 and 0.8 % for F1 and F2 mid-parent and best parent, respectively. Significant differences were not observed for fiber quality parameters except fiber strength. The result of this study demonstrated the potential of F1 rather than F2 hybrids and the need for further investigation on heterosis and inbreeding depression and development of economically feasible hybrid seed production technology. |
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งานวิจัยการปรับปรุงพันธุ์ฝ้ายสีธรรมชาติเพื่อสิ่งแวดล้อมและการพัฒนาที่ยั่งยืน (2016)หัวหน้าโครงการ:ดร.พีรนุช จอมพุก, รองศาสตราจารย์ ผู้ร่วมโครงการ:ดร.ประภารัจ หอมจันทน์, ศาสตราจารย์, ดร.งามชื่น รัตนดิลก, รองศาสตราจารย์, นางอรุณี วงศ์ปิยะสถิตย์, ศาสตราจารย์, ดร.ชูศักดิ์ จอมพุก, รองศาสตราจารย์ , ดร.คทารัตน์ ชุตินันทกุล, ผู้ช่วยศาสตราจารย์ , นางสาวณัฐ์นิชภู สุกิน แหล่งทุน:ทุนอุดหนุนวิจัยมก. |
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