Antifungal Activity of Biopesticides and their Effects on the Growth Parameters and Yield of Maize and Pigeon Pea 

Julião Monjane1*, Paulo Dimande2, Amândio Zimba2, Edilson Nhachengo1, Edny Teles1, Hélio Ndima1, Amália Uamusse1
1Department of Chemistry, Eduardo Mondlane University, Maputo, Mozambique.
2Rural Development High School, Eduardo Mondlane University, Vilankulo, Mozambique.

Corresponding Author: monjane.juliao@gmail.com; Tel: +258 868676497
Recieved Date: September 24, 2019; Accepted Date: September 23, 2020; Published Date: 03 October 2020
Citation: Monjane J, Dimande P, Zimba A, Nhachengo E, Teles E, Helio N, Uamusse A. Antifungal Activity of Biopesticides and their Effects on the Growth Parameters and Yield of Maize and Pigeon Pea. Trop J Nat Prod Res. 2020; 4(9):512-515.   https://doi.org/10.26538/tjnpr/v4i9.3
Copyright: © 2020 Monjane et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
ABSTRACT

In recent years, the search for biological methods to avoid the application of chemical
products in agriculture has led to investigating the use of plant extracts and biopolymers-based materials, such as chitosan. The present work was aimed at evaluating the antifungal effect of chitosan and the aqueous extracts of the three aloe species, namely: Aloe vera, A. ferox, and A. marlothii against Cochliobolus heterostrophus on maize and Colletotrichum lindemuthianum on pigeon pea, as well as their effect on the growth parameters, severity degree and grain yields. The experiment was laid out in a Randomized Complete Block Design with three replications and 9 treatments. The spraying of all tested biopesticides at 7th and 14th days showed a significant increase in growth parameter (increase of shoots) on both species. The highest grain yield was observed by applying samples QTZ at 25% (6.0 t.ha-1) and AF_13 (4.2 t.ha-1) on maize, AF_13 (1.2 t.ha-1) and AF_10 (1.6 t.ha-1) on pigeon pea when compared with the positive control - Manconzeb (4.5 and 0.5 t.ha-1 for maize and pigeon pea, respectively). 

Keywords: Chitosan, Aloe species, Biopesticides, Crop protection, Growth parameters, Grain yield.
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