Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds
Highly diversified tropical tree species could be a potential source of allelopathic compounds, which could lead to development of natural bio-herbicides for sustainable weed management. The present study was therefore designed to investigate into the allelopathic potential of sawdust obtained from...
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| Format: | Article |
| Language: | English |
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Farm to Fork Foundation
2019-09-01
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| Series: | Fundamental and Applied Agriculture |
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| Online Access: | http://www.ejmanager.com/fulltextpdf.php?mno=54326 |
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| author | A K M Mominul Islam Md Mehedi Hasan Sabina Yeasmin Md. Anwarul Abedin Md. Abdul Kader Md. Harun Or Rashid Md. Parvez Anwar |
| author_facet | A K M Mominul Islam Md Mehedi Hasan Sabina Yeasmin Md. Anwarul Abedin Md. Abdul Kader Md. Harun Or Rashid Md. Parvez Anwar |
| author_sort | A K M Mominul Islam |
| collection | DOAJ |
| description | Highly diversified tropical tree species could be a potential source of allelopathic compounds, which could lead to development of natural bio-herbicides for sustainable weed management. The present study was therefore designed to investigate into the allelopathic potential of sawdust obtained from eleven tropical tree species available in Bangladesh viz., Azadirachta indica, Swietenia macrophylla, Acacia auriculiformis, Tamarindus indica, Eucalyptus camaldulensis, Syzygium cumini, Mangifera. indica, Albizia. saman, Artocarpus. heterophyllus, Diospyros discolor and Tectona grandis. The aqueous sawdust extract of these plant species were diluted into four different concentrations viz. 1:5, 1:10, 1:15, 1:20 (w/v) and tested for their potentiality in inhibiting seedling growth of allelopathic sensitive plant Raphanus sativus under laboratory condition. A control (distilled water without extract) was also maintained in every cases and the bioassay experiment was replicated thrice. The results of this experiment showed that S. macrophylla, E. camaldulensis, M. indica and A. saman inhibited more than 90% shoot and root growth of R. sativus. The sawdust of these four plant species were selected to evaluate their potentiality in controlling paddy field weeds under filed condition. A total of 16 weed control treatments were considered in the field experiment viz., sawdust of selected four tree plant species at three application rates (1, 2 and 3 t ha-1), manual weeding (three times), chemical control (pre- + post- emergence herbicides), chemical + manual control and season long weedy (control). The results showed that the effect of different sawdust on the weed control varied significantly. Weed growth suppression by the sawdust was increased with the increase in application rate. The results revealed that manual, chemical weed control and application of E. camaldulensis saw dust @ 3 t ha-1 reduced the weed density by 79, 77 and 72%, respectively, and weed biomass by 86, 84 and 79%, respectively. On the other hand, manual weed control offered 100% rice yield increase while, chemical control and E. camaldulensis saw dust @ 3 t ha-1 both resulted in 92% rice yield increase over control. Although, manual and chemical weed control offered higher weed control efficiency and resulted in better rice productivity, but from environmental viewpoint application of E. camaldulensis sawdust @ 3 t ha-1 may be considered for sustainable weed management in rice. [Fundam Appl Agric 2019; 4(3.000): 906-915] |
| first_indexed | 2024-04-12T22:11:03Z |
| format | Article |
| id | doaj.art-acb37f706d564a03baa4722ccba9d875 |
| institution | Directory Open Access Journal |
| issn | 2518-2021 |
| language | English |
| last_indexed | 2024-04-12T22:11:03Z |
| publishDate | 2019-09-01 |
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| series | Fundamental and Applied Agriculture |
| spelling | doaj.art-acb37f706d564a03baa4722ccba9d8752022-12-22T03:14:44ZengFarm to Fork FoundationFundamental and Applied Agriculture2518-20212019-09-014390691510.5455/faa.5432654326Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weedsA K M Mominul Islam0Md Mehedi Hasan1Sabina Yeasmin2Md. Anwarul Abedin3Md. Abdul Kader4Md. Harun Or Rashid5Md. Parvez Anwar6Agro Innovation Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202Agro Innovation Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202Agro Innovation Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202Laboratory of Environment and Sustainable Development ESD Lab , Department of Soil Science, Bangladesh Agricultural UniversityDepartment of Agronomy, Bangladesh Agricultural University, Mymensingh 2202Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202Agro Innovation Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202Highly diversified tropical tree species could be a potential source of allelopathic compounds, which could lead to development of natural bio-herbicides for sustainable weed management. The present study was therefore designed to investigate into the allelopathic potential of sawdust obtained from eleven tropical tree species available in Bangladesh viz., Azadirachta indica, Swietenia macrophylla, Acacia auriculiformis, Tamarindus indica, Eucalyptus camaldulensis, Syzygium cumini, Mangifera. indica, Albizia. saman, Artocarpus. heterophyllus, Diospyros discolor and Tectona grandis. The aqueous sawdust extract of these plant species were diluted into four different concentrations viz. 1:5, 1:10, 1:15, 1:20 (w/v) and tested for their potentiality in inhibiting seedling growth of allelopathic sensitive plant Raphanus sativus under laboratory condition. A control (distilled water without extract) was also maintained in every cases and the bioassay experiment was replicated thrice. The results of this experiment showed that S. macrophylla, E. camaldulensis, M. indica and A. saman inhibited more than 90% shoot and root growth of R. sativus. The sawdust of these four plant species were selected to evaluate their potentiality in controlling paddy field weeds under filed condition. A total of 16 weed control treatments were considered in the field experiment viz., sawdust of selected four tree plant species at three application rates (1, 2 and 3 t ha-1), manual weeding (three times), chemical control (pre- + post- emergence herbicides), chemical + manual control and season long weedy (control). The results showed that the effect of different sawdust on the weed control varied significantly. Weed growth suppression by the sawdust was increased with the increase in application rate. The results revealed that manual, chemical weed control and application of E. camaldulensis saw dust @ 3 t ha-1 reduced the weed density by 79, 77 and 72%, respectively, and weed biomass by 86, 84 and 79%, respectively. On the other hand, manual weed control offered 100% rice yield increase while, chemical control and E. camaldulensis saw dust @ 3 t ha-1 both resulted in 92% rice yield increase over control. Although, manual and chemical weed control offered higher weed control efficiency and resulted in better rice productivity, but from environmental viewpoint application of E. camaldulensis sawdust @ 3 t ha-1 may be considered for sustainable weed management in rice. [Fundam Appl Agric 2019; 4(3.000): 906-915]http://www.ejmanager.com/fulltextpdf.php?mno=54326Allelopathysawdusttropical tree speciesbio-herbicideweed management |
| spellingShingle | A K M Mominul Islam Md Mehedi Hasan Sabina Yeasmin Md. Anwarul Abedin Md. Abdul Kader Md. Harun Or Rashid Md. Parvez Anwar Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds Fundamental and Applied Agriculture Allelopathy sawdust tropical tree species bio-herbicide weed management |
| title | Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds |
| title_full | Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds |
| title_fullStr | Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds |
| title_full_unstemmed | Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds |
| title_short | Bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds |
| title_sort | bioassay screening of sawdust obtained from selected tropical tree species for allelopathic properties and their field performance against paddy weeds |
| topic | Allelopathy sawdust tropical tree species bio-herbicide weed management |
| url | http://www.ejmanager.com/fulltextpdf.php?mno=54326 |
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