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| Registros recuperados: 169 | |
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| Phuttapong Manokam; Nattinee Phatarakul; Sansanee Jamjod; ฺำBenjavan Rerkasem. |
| Rice plants with more roots are better at acquiring water and nutrients from the soil. But to study rice root system in the soil is time consuming and labour intensive, making screening for root traits in breeding programs difficult. The objective of this study was to compare root growth of two rice varieties with different rooting habits, Bue Bang and KDML105, in 8 rooting media, in order to develop a simple and rapid means for screening. The rooting media were T1, Sansai soil; T2, black loam soil; T3, 1:1 mixture (by weight) of black loam soil and fine sand; T4, 2:1 mixture of black loam soil and fine sand; T5, 1:1 mixture of black loam soil and coarse sand; T6, 2:1 mixture of black loam soil and coarse sand; T7, complete nutrient solution and T8,... |
| Tipo: PhysicalObject |
Palavras-chave: Rice root; Root length; Root dry weight; Screening method; ข้าว; รากข้าว; ความยาวราก; น้ำหนักแห้งราก; วิธีการประเมิน; วัสดุปลูก; การคัดเลือกพันธุ์; การปรับปรุงพันธุ์. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5433 |
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| Tatsaporn Siripug; Suporn Katawatin. |
| HSP70-2 is well accepted as an indicator of heat stress. The purpose of this study was to investigate the physiological responses to heat stress of differential genotypes of HSP70-2 in dairy cattle. Thirty two female Holstein Friesian (HF) crossbred heifers, 2-3 years of age, 266 ± 5.6 kg body weight were placed outdoor with partial roof. Blood samples were collected to do genotyping of HSP70-2 using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. Ambient temperature, relative humidity and physiological responses, including rectal temperature, respiration rate, sweating rate, pulse rate, skin temperature, and N/L ratio were examined at 06.00, 14.00, 18.00 and 22.00. Genotyping revealed that there were 14 and 18... |
| Tipo: PhysicalObject |
Palavras-chave: Dairy cattle; Genotypes; Genetic variation; Hsp70-2; Heat stress; Heat tolerant; Genetic improvement; โคนม; รูปแบบจีโนไทป์; พันธุกรรม; การแสดงออกของยีน; ความแตกต่างทางพันธุกรรม; การตอบสนองทางสรีรวิทยา; ความเครียด; อากาศร้อน; การทนร้อน; การรักษาสมดุลความร้อน; การปรับปรุงพันธุ์. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5750 |
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| Registros recuperados: 169 | |
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