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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Sep 2014, 35 (5)                                     Back


nstantaneous and historical temperature effects on a-pinene

Characteristics of tomato plants treated with leaf extracts of neem (Azadirachta indica A. Juss. (L.)) and mata-raton

(Gliricidia sepium (Jacquin)): A greenhouse experiment

 

 

Joaqu?n Adolfo Montes-Molina1, Ibis Harumy Nuricumbo-Zarate1, Javier Hern?ndez-D?az1,

Federico Antonio Guti?rrez-Miceli1, Luc Dendooven2 and V?ctor Manuel Ru?z-Valdiviezo1*?

1Laboratory of Biotechnology, Instituto Tecnol?gico de Tuxtla-Guti?rrez, Tuxtla-Guti?rrez, M?xico.

Carretera Panamericana Km 1080, Tuxtla Guti?rrez, Chiapas

2Laboratory of Soil Ecology, Cinvestav, Av. I.P.N. 2508 C.P. 07360, M?xico D. F., M?xico

*Corresponding Author E-mail: bioqvic@hotmail.com

 

 

 

 

 

Publication Data

Paper received:

14 June 2013

 

Revised received:

22 December 2013

 

Accepted:

08 March 2014

 

 

Abstract

Extracts of neem (Azadirachta indica A.) and mata-raton (Gliricidia sepium) leaves were used as insect repellent during organic cultivation of tomato plants (Solanum lycopersicum) and were compared with untreated plants or plants treated with lambda-cyhalothrin (chemical treatment). The best developed tomato plants were found in the Gliricidia treatment, while difference between other treatments were small. The number of different species of macrofauna found on tomato plants were similar in different treatments, except for corn rootworm (Diabrotica spp.) found in the Gliricidia treatment, but not in other treatments. It was found that leaf extract of G. sepium stimulated tomato growth and altered the leaf and fruit characteristics. This was most likely due to its action as a growth regulator and/or an inductor of changes in the tomato growth regulation, but not due to its action as an insect repellent. Consequently, leaf extract of G. sepium could be used to stimulate tomato development. 

 

Key words

Azadirachta indica, Bioinsecticides, Diabrotica spp., Gliricidia sepium

 

 

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