Allelopathy effect of rice straw on the germination and growth of Echinochloa crus-galli (L.) P. Beauv

Fitryana Dewi Khairul Anuar, Ismail Sahid, Wan Juliana Wan Ahmad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A study on the effect of extract and decomposing rice straw of MR220 CL2, MR253 and MR263 on the germination and seedling growth of Echinochloa crus-galli has been conducted in the laboratory and greenhouse of Universiti Kebangsaan Malaysia. Three concentrations of aqueous extract (25, 50 and 100 g L-1) and decomposing rice straw (5, 10 and 15 g 500g-1) were used in the experiment. The experimental design used was the Complete Randomized Design (CRD) to evaluate the allelopathic effect of various concentrations of rice straw on various growth parameters of the test plants. All the experiments were carried out in three replications and conducted twice. Results showed that the rice straw extract of all the varieties showed significant effects on the germination and seedling growth of E. crus-galli. Aqueous extract of MR263 showed the greatest reduction on the germination of E.crus-galli compared to the other varieties at 100 g L-1 concentration (26% as compared to control). As the extract concentration of rice straw increased, the radicle length of E. crus-galli was significantly reduced. The radicle and hypocotyl length of E. crus-galli was significantly inhibited by 82.28% and 41.13% respectively at 100 g L-1 concentration of the aqueous extract of MR263. Decomposing rice straw of all rice varieties inhibited germination and all the growth parameters of the test plants. As the concentration of rice debris increased, the radicle length of the test plant decreased for all treatments. Decomposing rice straw of MR220 CL2 showed the greatest inhibitory effect on the growth of E. crus-galli compared to the other varieties. It inhibited the radicle, hypocotyl, fresh and dry weight of the test plants by 63.29%, 62.61%, 83.68% and 82.49% respectively as compared to the control. Therefore, rice straw of MR220 CL2, MR253 and MR263 showed allelopathic characteristics as they inhibited the germination and various growth parameters of E. crus-galli. However, further studies need to be conducted to determine the mode of action of the allelochemicals involved in rice allelopathy.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
PublisherAmerican Institute of Physics Inc.
Volume1678
ISBN (Print)9780735413252
DOIs
Publication statusPublished - 25 Sep 2015
Event2015 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2015 - Selangor, Malaysia
Duration: 15 Apr 201516 Apr 2015

Other

Other2015 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2015
CountryMalaysia
CitySelangor
Period15/4/1516/4/15

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germination
rice
Malaysia
greenhouses
debris

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Anuar, F. D. K., Sahid, I., & Wan Ahmad, W. J. (2015). Allelopathy effect of rice straw on the germination and growth of Echinochloa crus-galli (L.) P. Beauv. In AIP Conference Proceedings (Vol. 1678). [020014] American Institute of Physics Inc.. https://doi.org/10.1063/1.4931199

Allelopathy effect of rice straw on the germination and growth of Echinochloa crus-galli (L.) P. Beauv. / Anuar, Fitryana Dewi Khairul; Sahid, Ismail; Wan Ahmad, Wan Juliana.

AIP Conference Proceedings. Vol. 1678 American Institute of Physics Inc., 2015. 020014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Anuar, FDK, Sahid, I & Wan Ahmad, WJ 2015, Allelopathy effect of rice straw on the germination and growth of Echinochloa crus-galli (L.) P. Beauv. in AIP Conference Proceedings. vol. 1678, 020014, American Institute of Physics Inc., 2015 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2015, Selangor, Malaysia, 15/4/15. https://doi.org/10.1063/1.4931199
Anuar, Fitryana Dewi Khairul ; Sahid, Ismail ; Wan Ahmad, Wan Juliana. / Allelopathy effect of rice straw on the germination and growth of Echinochloa crus-galli (L.) P. Beauv. AIP Conference Proceedings. Vol. 1678 American Institute of Physics Inc., 2015.
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abstract = "A study on the effect of extract and decomposing rice straw of MR220 CL2, MR253 and MR263 on the germination and seedling growth of Echinochloa crus-galli has been conducted in the laboratory and greenhouse of Universiti Kebangsaan Malaysia. Three concentrations of aqueous extract (25, 50 and 100 g L-1) and decomposing rice straw (5, 10 and 15 g 500g-1) were used in the experiment. The experimental design used was the Complete Randomized Design (CRD) to evaluate the allelopathic effect of various concentrations of rice straw on various growth parameters of the test plants. All the experiments were carried out in three replications and conducted twice. Results showed that the rice straw extract of all the varieties showed significant effects on the germination and seedling growth of E. crus-galli. Aqueous extract of MR263 showed the greatest reduction on the germination of E.crus-galli compared to the other varieties at 100 g L-1 concentration (26{\%} as compared to control). As the extract concentration of rice straw increased, the radicle length of E. crus-galli was significantly reduced. The radicle and hypocotyl length of E. crus-galli was significantly inhibited by 82.28{\%} and 41.13{\%} respectively at 100 g L-1 concentration of the aqueous extract of MR263. Decomposing rice straw of all rice varieties inhibited germination and all the growth parameters of the test plants. As the concentration of rice debris increased, the radicle length of the test plant decreased for all treatments. Decomposing rice straw of MR220 CL2 showed the greatest inhibitory effect on the growth of E. crus-galli compared to the other varieties. It inhibited the radicle, hypocotyl, fresh and dry weight of the test plants by 63.29{\%}, 62.61{\%}, 83.68{\%} and 82.49{\%} respectively as compared to the control. Therefore, rice straw of MR220 CL2, MR253 and MR263 showed allelopathic characteristics as they inhibited the germination and various growth parameters of E. crus-galli. However, further studies need to be conducted to determine the mode of action of the allelochemicals involved in rice allelopathy.",
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