Effect of Leaf Extracts of Multipurpose Trees on the Life Cycle of Striga asiatica (L.) Kuntze

Barbara Kachigunda; Annancietar Gomba Dr

doi:10.3923/ja.2005.161.164

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Effect of Leaf Extracts of Multipurpose Trees on the Life Cycle of Striga asiatica (L.) Kuntze

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Effect of Leaf Extracts of Multipurpose Trees on the Life Cycle of Striga asiatica (L.) Kuntze

Barbara Kachigunda and Annancietar Gomba Dr

Journal of agronomy, Vol.4(3), pp.161-164

2005

DOI: https://doi.org/10.3923/ja.2005.161.164

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Abstract

Striga asiastica

Acacia angustissima

multipurpose trees

agroforestry

Calliandra callothyrus

Agronomy

Agroforestry

Crop and pasture protection (incl. pests, diseases and weeds)

Expanding knowledge in the agricultural, food and veterinary sciences

A laboratory study was conducted to investigate the effects of several leguminous multipurpose tree (MPT) leaf crude extracts on the different stages of the life cycle of Striga asiatica. The MPTs used were Sesbania sesban, Luceana leucocephala, Acacia angustissima and Calliandra callothyrsus. Stages studied were germination, haustoria initiation, attachment and penetration of Striga asiatica on maize seedlings. Using the agar gel assay method discs containing preconditioned S. asiatica seeds were immersed into 9 cm petri dishes containing two millimeters of the MPT crude leaf extracts. Autoclaved water agar at room temperature was then poured over the mixture of S. asiatica seeds and leaf extract. The petri dishes were swirled around to evenly distribute S. asiatica seeds and leaf extracts in the agar. A germinating maize seed was submerged in the solidifying agar near the edge of the petri dish, with the root tip pointing across the plate. Germination of S. asiatica was significantly reduced (p< 0.05) by all the mulch extracts. The greatest reduction in germination (49%) resulted from S. sesban extracts while extracts from L. leucocephala caused the least reduction (24%). All the leaf mulch extracts did not affect haustoria formation. Attachment was not observed in any of the dishes including the control.

Details

Title: Effect of Leaf Extracts of Multipurpose Trees on the Life Cycle of Striga asiatica (L.) Kuntze
Authors/Creators: Barbara Kachigunda (Author) - Murdoch University, Centre for Biosecurity and One Health
Annancietar Gomba Dr (Author) - Midlands State University
Publication Details: Journal of agronomy, Vol.4(3), pp.161-164
Publisher: Asian Network for Scientific Information
Identifiers: 991005592570207891
Murdoch Affiliation: Centre for Biosecurity and One Health
Language: English
Resource Type: Journal article

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