Growth and nutrients competition between weedy rice and crop rice in a replacement series study

© 2018 Friends Science Publishers. This study examined competitive ability of two rice varieties with a weedy rice biotype in pot experiment. In the first experiment, each of the rice variety was grown with the weedy rice in a replacement series experiment, with five proportions of crop to weedy ric...

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Main Authors: Ronnachit Jindalouang, Chanya Maneechote, Chanakan Prom-u-thai, Benjavan Rerkasem, Sansanee Jamjod
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/48704
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-487042018-06-18T08:57:20Z Growth and nutrients competition between weedy rice and crop rice in a replacement series study Ronnachit Jindalouang Chanya Maneechote Chanakan Prom-u-thai Benjavan Rerkasem Sansanee Jamjod Agricultural and Biological Sciences © 2018 Friends Science Publishers. This study examined competitive ability of two rice varieties with a weedy rice biotype in pot experiment. In the first experiment, each of the rice variety was grown with the weedy rice in a replacement series experiment, with five proportions of crop to weedy rice at 100:0, 75:25, 50:50, 25:75 and 0:100. In the second experiment, cv. SPR1 crop rice and weedy rice were grown in monoculture and in 50:50 mixtures with mixed or separated roots. The weedy rice was more competitive than the two crop rice varieties, with proportionately greater number of tillers, grain yield, total dry weight and accumulation of nutrients in shoot of the weedy rice when grown at 75:25 crops to weed proportion. The competition between crop and weedy rice was predominantly in the roots, as the advantage of weedy rice in growth, yield and nutrients accumulation largely disappeared when the roots were separated. These results are in agreement with invasiveness of the weedy rice in crop field. The difference between crop rice varieties found here suggests that competitiveness against weedy rice could be selected for as part of the strategy for weedy rice control, with a focus on the root traits. 2018-06-18T08:57:20Z 2018-06-18T08:57:20Z 2018-01-01 Journal 18149596 15608530 2-s2.0-85045628874 10.17957/IJAB/15.0568 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85045628874&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/48704
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
Ronnachit Jindalouang
Chanya Maneechote
Chanakan Prom-u-thai
Benjavan Rerkasem
Sansanee Jamjod
Growth and nutrients competition between weedy rice and crop rice in a replacement series study
description © 2018 Friends Science Publishers. This study examined competitive ability of two rice varieties with a weedy rice biotype in pot experiment. In the first experiment, each of the rice variety was grown with the weedy rice in a replacement series experiment, with five proportions of crop to weedy rice at 100:0, 75:25, 50:50, 25:75 and 0:100. In the second experiment, cv. SPR1 crop rice and weedy rice were grown in monoculture and in 50:50 mixtures with mixed or separated roots. The weedy rice was more competitive than the two crop rice varieties, with proportionately greater number of tillers, grain yield, total dry weight and accumulation of nutrients in shoot of the weedy rice when grown at 75:25 crops to weed proportion. The competition between crop and weedy rice was predominantly in the roots, as the advantage of weedy rice in growth, yield and nutrients accumulation largely disappeared when the roots were separated. These results are in agreement with invasiveness of the weedy rice in crop field. The difference between crop rice varieties found here suggests that competitiveness against weedy rice could be selected for as part of the strategy for weedy rice control, with a focus on the root traits.
format Journal
author Ronnachit Jindalouang
Chanya Maneechote
Chanakan Prom-u-thai
Benjavan Rerkasem
Sansanee Jamjod
author_facet Ronnachit Jindalouang
Chanya Maneechote
Chanakan Prom-u-thai
Benjavan Rerkasem
Sansanee Jamjod
author_sort Ronnachit Jindalouang
title Growth and nutrients competition between weedy rice and crop rice in a replacement series study
title_short Growth and nutrients competition between weedy rice and crop rice in a replacement series study
title_full Growth and nutrients competition between weedy rice and crop rice in a replacement series study
title_fullStr Growth and nutrients competition between weedy rice and crop rice in a replacement series study
title_full_unstemmed Growth and nutrients competition between weedy rice and crop rice in a replacement series study
title_sort growth and nutrients competition between weedy rice and crop rice in a replacement series study
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85045628874&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/48704
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