Allelopathy research in agroforestry systems of South India

Hunshal, C. S.; Channal, H. T.; Alagawadi, A. R.; Patil, R. K.

doi:10.1007/978-94-011-4173-4_14

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…This is due to many factors interact with allelo-chemicals in soil can cause inhibitory effects even though the concentrations of individual compounds are below their inhibitory levels [15]. The present study coincides with the study reported by [23]. which confirmed that, leaf leachate has showed more allelophatic effect than Bark.…”

Section: Discussionsupporting

confidence: 91%

Allelophatic effects of selected exotic tree species on germination and root length of Maize and Wheat in North Eastern Amhara, Ethiopia

2023

WJFR

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Background: The selected tree species Gravellia robusta, Eucalyptus camaldulensis and Casuarina equisetifolia are the wide spread exotic species in Eastern Amhara. Allelopathy have either stimulatory or inhibitory effect on the germination percent and the radicle length of the crop, by the release of chemicals from plant parts in both natural and agricultural systems. Objective: This study was conducted to identify inhibitory or stimulatory effect using bark and leaf leachates of selected exotic species on the germination and radicle length of test crops. Methods: The experiment was conducted in sirinka agricultural research center under the laboratory. Aqueous bark and leaf extracts were prepared by soaking 25gm powder for each selected species in 500ml distilled water for 48 hrs. and used the extract for the study. The effect of the leachates was tested by placing 100 seeds of maize and wheat separately in three replicate using complete randomized design (CRD). The data were using SAS software version 9.0. Results: Leaf leachate of Eucalyptus camaldulensis showed inhibitory effect. While, Gravellia robusta and Casuarina equisetifolia showed stimulatory effect for on the germination and radicle growth of tested crops. Conclusion: This result implies to conclude in removing excess Eucalyptus camaldulensis leaf from the crop land should be done to reduce the alleophatic effect & to enhance production of crops.

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Section: Discussionsupporting

confidence: 91%

Allelophatic effects of selected exotic tree species on germination and root length of Maize and Wheat in North Eastern Amhara, Ethiopia

2023

WJFR

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Section: Discussionsupporting

confidence: 91%

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2023

WJFR

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Background: The selected tree species Gravellia robusta, Eucalyptus camaldulensis and Casuarina equisetifolia are the wide spread exotic species in Eastern Amhara. Allelopathy have either stimulatory or inhibitory effect on the germination percent and the radicle length of the crop, by the release of chemicals from plant parts in both natural and agricultural systems.Objective: This study was conducted to identify inhibitory or stimulatory effect using bark and leaf leachates of selected exotic species on the germination and radicle length of test crops. Methods:The experiment was conducted in sirinka agricultural research center under the laboratory. Aqueous bark and leaf extracts were prepared by soaking 25gm powder for each selected species in 500ml distilled water for 48 hrs. and used the extract for the study. The effect of the leachates was tested by placing 100 seeds of maize and wheat separately in three replicate using complete randomized design (CRD). The data were using SAS software version 9.0.Results: Leaf leachate of Eucalyptus camaldulensis showed inhibitory effect. While, Gravellia robusta and Casuarina equisetifolia showed stimulatory effect for on the germination and radicle growth of tested crops. Conclusion:This result implies to conclude in removing excess Eucalyptus camaldulensis leaf from the crop land should be done to reduce the alleophatic effect & to enhance production of crops.

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“…Tripathy, (2000) also reported a decreased amount of carbohydrate content in rice seedlings of two improved cultivars (IR-36 and Swarna) influenced by phyllode-leachate of Acacia auriculaeformis and bark leachate of both Acacia nilotica and Acacia auriculaeformis. Similar findings of Hunsal et al, (1998) in soybean also corroborate the present observation. Saleh (2013) demonstrated that corn seeds with olive processing wastes extract at concentration 3.0% (w/v) significantly increased the soluble sugars content in seedlings tissues, while the higher concentrations were inhibitory.…”

Section: Total Carbohydrate Contentsupporting

confidence: 93%

Study on Allelopathic Effect of Cocklebur (Xanthium indicum) on Macromolecular Contents of Green Gram (Phaseolus radiatus L.)

Adhikary¹

2017

Int.J.Curr.Res.Aca.Rev.

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Article InfoWeed releases an array of bioactive secondary metabolites from its various parts such as leaves, stem, root and sometimes decomposed body residues through different mechanism into its surrounding environment. The bioactive chemicals are often termed as allelochemicals and interact with plants which are present in vicinity. Effects of allelochemicals to the agricultural and biological ecosystem are may be positive or negative basing on the type of weed, crop plants and soil medium. Xanthium indicum L. and green gram are growing on paddy field after harvesting of the paddy. Green gram is cultivated by farmer on the post harvested paddy field during winter season in the mean time dormant seeds of the test weed are breakdown dormancy by cold treatment and germinated to produce plants along with crop. Hence, a pot experiment was conducted to find out the effect of various types of leachate of Xanthium indicum with its different graded dose (5, 10, 15 and 20 %) on total carbohydrate and protein content. The data of total carbohydrate and protein content obtained revealed a significant negative correlations with increase in the various types of leachate concentrations of test weed and positive correlations with increase in growth period upto 10 DAS thereafter a negative correlation were marked. This indicates that allelopathic stress of various types of leachates of Xanthium indicum L. were phytotoxic to green gram, when incubation period increase (i.e. 10 days after sowing) the degree of toxicity was higher, this might have due to profuse root system and absorbed more allelochemicals by plant as a result altering or blocking the process of intermediate biochemical pathways which reduced the macromolecular contents. The main purpose of this pot culture experiment is to highlight the adverse allelopathic effect of Xanthium indicum L. on green gram in agro-ecosystem.

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Allelopathy research in agroforestry systems of South India

Cited by 3 publications

References 18 publications

Allelophatic effects of selected exotic tree species on germination and root length of Maize and Wheat in North Eastern Amhara, Ethiopia

Allelophatic effects of selected exotic tree species on germination and root length of Maize and Wheat in North Eastern Amhara, Ethiopia

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Study on Allelopathic Effect of Cocklebur (Xanthium indicum) on Macromolecular Contents of Green Gram (Phaseolus radiatus L.)

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