Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions

© 2007-2019 Southern Cross Publishing-Australia. To verify how different growing environments affect the aroma quality and production yield of fragrant rice, two commercial Thai fragrant rice cultivars, Khao Dawk Mali 105 (KDML 105) and Pathum Thani 1 (PTT 1) were grown in a greenhouse and also open...

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Main Authors: Pittayaporn Boontakham, Phumon Sookwong, Sakda Jongkaewwattana, Sutee Wangtueai, Sugunya Mahatheeranont
Format: Journal
Published: 2019
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/65293
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-652932019-08-05T04:31:32Z Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions Pittayaporn Boontakham Phumon Sookwong Sakda Jongkaewwattana Sutee Wangtueai Sugunya Mahatheeranont Agricultural and Biological Sciences © 2007-2019 Southern Cross Publishing-Australia. To verify how different growing environments affect the aroma quality and production yield of fragrant rice, two commercial Thai fragrant rice cultivars, Khao Dawk Mali 105 (KDML 105) and Pathum Thani 1 (PTT 1) were grown in a greenhouse and also open air. Between the two growing environments, the temperature difference averaged 6 °C. Each rice cultivar was grown in clay loam and sandy loam soils. In addition, a water stress treatment was applied at the beginning of the grain filling stage and onward. Determination of 2-acetyl-1pyrroline (2AP) in both rice leaves and grain was accomplished using automated headspace-gas chromatography with selective nitrogen/phosphorus detection. The results showed that throughout all growth stages the rice leaf 2AP content was different for both rice cultivars depending on the soil type. The KDML 105 cultivar had higher 2AP content in clay loam soil compared to PTT 1. A reverse trend was observed in the sandy loam soil. The grain 2AP content and grain yield of both rice cultivars were lower for those plants grown in the greenhouse condition. The water stress treatment led to higher 2AP content in both the leaves and grain of the two rice cultivars, which averaged 19% higher for rice leaves and 22% higher for rice grain. However, the water stress treatment dramatically decreased grain yield for all growing conditions. The interaction effects of these environmental factors were analysed using a full-factorial design. The interaction between rice cultivar × temperature had the strongest effect on the 2AP content, whereas rice cultivar × soil type greatly affected rice grain yield. 2019-08-05T04:31:32Z 2019-08-05T04:31:32Z 2019-01-01 Journal 18352707 18352693 2-s2.0-85063521734 10.21475/ajcs.19.13.01.p1431 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063521734&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/65293
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Agricultural and Biological Sciences
spellingShingle Agricultural and Biological Sciences
Pittayaporn Boontakham
Phumon Sookwong
Sakda Jongkaewwattana
Sutee Wangtueai
Sugunya Mahatheeranont
Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
description © 2007-2019 Southern Cross Publishing-Australia. To verify how different growing environments affect the aroma quality and production yield of fragrant rice, two commercial Thai fragrant rice cultivars, Khao Dawk Mali 105 (KDML 105) and Pathum Thani 1 (PTT 1) were grown in a greenhouse and also open air. Between the two growing environments, the temperature difference averaged 6 °C. Each rice cultivar was grown in clay loam and sandy loam soils. In addition, a water stress treatment was applied at the beginning of the grain filling stage and onward. Determination of 2-acetyl-1pyrroline (2AP) in both rice leaves and grain was accomplished using automated headspace-gas chromatography with selective nitrogen/phosphorus detection. The results showed that throughout all growth stages the rice leaf 2AP content was different for both rice cultivars depending on the soil type. The KDML 105 cultivar had higher 2AP content in clay loam soil compared to PTT 1. A reverse trend was observed in the sandy loam soil. The grain 2AP content and grain yield of both rice cultivars were lower for those plants grown in the greenhouse condition. The water stress treatment led to higher 2AP content in both the leaves and grain of the two rice cultivars, which averaged 19% higher for rice leaves and 22% higher for rice grain. However, the water stress treatment dramatically decreased grain yield for all growing conditions. The interaction effects of these environmental factors were analysed using a full-factorial design. The interaction between rice cultivar × temperature had the strongest effect on the 2AP content, whereas rice cultivar × soil type greatly affected rice grain yield.
format Journal
author Pittayaporn Boontakham
Phumon Sookwong
Sakda Jongkaewwattana
Sutee Wangtueai
Sugunya Mahatheeranont
author_facet Pittayaporn Boontakham
Phumon Sookwong
Sakda Jongkaewwattana
Sutee Wangtueai
Sugunya Mahatheeranont
author_sort Pittayaporn Boontakham
title Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
title_short Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
title_full Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
title_fullStr Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
title_full_unstemmed Comparison of grain yield and 2-acetyl-1-pyrroline (2AP) content in leaves and grain of two Thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
title_sort comparison of grain yield and 2-acetyl-1-pyrroline (2ap) content in leaves and grain of two thai fragrant rice cultivars cultivated at greenhouse and open-air conditions
publishDate 2019
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063521734&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/65293
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