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การพัฒนาพันธุ์ข้าวแข่งขันกับวัชพืช : ลักษณะของต้นและรากข้าวเพื่อการแข่งขันกับวัชพืช Thai Agricultural
Ronnachai Changsri; Ofelia Namuco; David Johnson.
Greenhouse study was conducted at the Weed Science, Crop and Environmental Sciences Division, IRRI in February-April, 2013. The objective was to assess the competitiveness of rice (IR64, Sabita, KDML105, Weedy rice (Oryza sativa f. spontanea Acc. 105798 (THA)) and six rice progenies derived from a cross between IR64 and Sabita that have high potential for competitiveness against weeds. The six progenies were SB561 (IR88633:1-66-B), SB562 (IR88633:1-67-B), SB604 (IR88633:1-136-B), SB665 (IR88633:1-138-B), SB708 (IR88633:20-69-B), and SB769 (IR88633:12-55-B). We evaluated the competitive ability of these rice genotypes under severe pressure from Echinochloa colona. The experimental design was RCB with 3 replications. Several rice shoot and root traits were...
Tipo: Collection Palavras-chave: Rice Weed Competition of root Weed competitive rice; Weed suppressiom ข้าว วัชพืช การแข่งขันของราก ข้าวแข่งขันกับวัชพืช การกดดันจากวัชพืช.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5916
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การอนุรักษ์และใช้ประโยชน์ข้าวพันธุ์พื้นเมืองในภาคตะวันออกเฉียงเหนือ Thai Agricultural
Weerasak Hormsombut; Ronnachai Changsri.
Although traditional rice germplasm in northeastern Thailand is only a small portion comparing to modern popular varieties, they are still grown throughout the region. Those traditional varieties grown in the lower part of the region are mostly non-glutinous varieties, while those grown in the upper part are glutinous ones. The existence of these traditional varieties in the region is not only because of growing for sale, but also due to some special reason, such as, believes in their medicinal and nutritional properties, culture and ancestor’s believes. The main objective of this study is to preserve traditional rice varieties for farmers, with the strategic goal of protecting rice germplasm from losses. The experiments were conducted at Sakon Nakhon Rice...
Tipo: PhysicalObject Palavras-chave: Traditional variety; Local variety; Special property; Special characteristic; Pure line; Selection; Exploration; Collection; Conservation; Utilization; ข้าวพันธุ์พื้นเมือง; คุณสมบัติพิเศษ; อัตลักษณ์เฉพาะพันธุ์; การคัดเลือกพันธุ์บริสุทธิ์; การสำรวจ; การรวบรวม; การอนุรักษ์; การใช้ประโยชน์.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5537
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ปัจจัยที่มีผลกระทบต่อคุณภาพข้าวหอมมะลิไทย Thai Agricultural
Ronnachai Changsri; Grissana Sudtasarn; Pharichart Khongsuwan; Patcharaporn Rakchum; Duangjai Suriyaarunroj; Thani Chuenban; Waraporn Wongboon.
Study on factors affecting Thai Hom Mali rice quality aims to investigate causal factors contributing to rice qualities such as production process, post-harvesting process and storage.This research was carried out in rice growing areas of northeast and upper north of Thailand during 2011-2014. The 5 major projects included in this research were: I) Survey on quality variation of Hom Mali rice II) Effects of water deficit on 2-acetyl-1-pyrroline content, grain yield and grain quality of Khao Dawk Mali 105 (KDML105) and RD15 III) Effects of plantnutrients, sulphur, calcium, manganese and magnesium on 2-acetyl-1-pyrroline content, grain yield and grain quality of KDML105 IV) Postharvest technologies affecting Khao Dawk Mali 105 grain qualities V) Yields...
Tipo: Collection Palavras-chave: Thai Hom Mali Rice; KDML 105; RD15; Water deficit and 2AP in rice; Plant nutrition and 2AP in rice; Postharvest technology; Hom mali growing off-season; ข้าวหอมมะลิไทย; ขาวดอกมะลิ 105; กข15; การขาดน้ำและปริมาณ2AP ในข้าว; ธาตุอาหารพืชและปริมาณ2AP ในข้าว; เทคโนโลยีหลังการเก็บเกี่ยว; ข้าวหอมมะลินอกฤดู.
Ano: 2015 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5920
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ประสิทธิภาพของสารเคมีป้องกันกำจัดวัชพืชในนาข้าวที่ใช้ทั่วไปใน สาธารณรัฐฟิลิปปินส์ Thai Agricultural
Ronnachai Changsri; Namuco, Ofelia; Migo, Teodoro; Johnson, David.
The efficacy of bispyribac sodium, fenoxaprop-p-ethyl + ethoxysulfuron, and propanil+butachlor were evaluated in greenhouse and field experiments, Weed Science, Crop and Environmental Sciences Division, IRRI in February - April 2013. The field plots had high weed density that had 4-6 leaves when the herbicides were applied at 15 days after land preparation. In the greenhouse experiment we grew Echinocloa crus-galli, Ludwigia octovalvis, Cyperus iria, weedy rice (Oryza sativa f. spontanea Acc. 105798 (THA)), and rice cultivars KDML105 and IR64 in pots. At 7 days after rice and weed germination, we sprayed herbicides to the above-mentioned species using a research track sprayer. The results showed that bispyribac sodium and fenoxaprop-p-ethyl+ethoxysulfuron...
Tipo: PhysicalObject Palavras-chave: Rice; Weed; Herbicides; Greenhouse; Trails; Bispyribac sodium; Fenoxaprop-p-ethyl; Ethoxysulfuron; Propanil; Butachlor; Philippines; ข้าว; วัชพืช; สารป้องกันกำจัดวัชพืช; ความเป็นพิษ; การควบคุมวัชพืช; เรือนทดลอง.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5626
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ลักษณะของต้นและรากข้าวเพื่อการแข่งขันกับวัชพืช Thai Agricultural
Ronnachai Changsri; Namuco, Ofelia; Johnson, David.
Greenhouse study was conducted at the Weed Science, Crop and Environmental Sciences Division, IRRI in February-April, 2013. The objective was to assess the competitiveness of rice (IR64, Sabita, KDML105, Weedy rice (Oryza sativa f. spontanea Acc. 105798 (THA)) and six rice progenies derived from a cross between IR64 and Sabita that have high potential for competitiveness against weeds. The six progenies were SB561 (IR88633:1-66-B), SB562 (IR88633:1-67-B), SB604 (IR88633:1-136-B), SB665 (IR88633:1-138-B), SB708 (IR88633:20-69-B) and SB769 (IR88633:12-55-B). We evaluated the competitive ability of these rice genotypes under severe pressure from Echinochloa colona. The experimental design was RCB with 3 replications. Several rice shoot and root traits were...
Tipo: PhysicalObject Palavras-chave: Rice; Weed competitiveness; Weed suppression; Shoot traits; Root traits; ข้าว; การแข่งขันกับวัชพืช; การกดดันจากวัชพืช; ลักษณะต้นข้าว; ลักษณะรากข้่าว.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5625
Registros recuperados: 5
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