Sunn hemp (Crotalaria juncea) weed suppression and allelopathy at different timings
Type de document
journalArticle
Langue source
-- Langue source --
Titre
Sunn hemp (Crotalaria juncea) weed suppression and allelopathy at different timings
Titre français
Titre anglais
Auteur(s)
- BUNDIT Apirat
- OSTLIE Michael
- PROM-U-THAI Chanakan
Editeur(s)
Autre(s)
Id
TA9Y34KI
Version
2709
Date ajout
10 mars 2021 22:07
Date modification
10 mars 2021 22:07
Résumé
The utilisation of plant allelopathy is an important tool in a diversified weed management strategy. Allelochemicals are released by some plants, such as sunn hemp (Crotalaria juncea L.), to inhibit the growth of neighbouring plants. This species was tested for use as an allelopathic plant for weed control in cropping systems. The allelopathic properties of sunn hemp were tested under field conditions at different timings of 4, 8, 12 and 16 weeks after planting (WAP). The results showed that sunn hemp at 8, 12 and 16 WAP significantly decreased the total number of weeds compared with the control weedy check. The similar trend of decreasing weed number was observed in grass and broadleaf weeds, as well as sedge. The allelopathic activity of sunn hemp was further investigated in the soil planted with sunn hemp and water extracts on tested plants. Phytotoxicity of the soil, planted with sunn hemp at different timings, did not significantly decrease germination, shoot length, root length and dry weight of tested plants. However, the water extracts caused significantly decreased germination and plant growth, especially the shoot extracts exhibited the inhibitory effects more than the root extracts. Interestingly, the extracts from sunn hemp at 4 WAP had higher inhibitory effects than the extracts from other stages. These results suggest that sunn hemp growth stage is an important consideration for maximising biological weed control in cropping systems.
Note
None
CRAW tags
- crotalaria juncea
- AB - Utile à l'AB
- FREDO adventice
- FREDO lutte
- GEO Thaïlande
- allelopathy
WEB tags
- allelopathic plant
- growing period
- growth stage
- morphological characteristics
- sunn hemp
Titre de la publication
Biocontrol Science and Technology
Volume
0
Pages
1-11
Date caractères
February 8, 2021
Date publication
8 février 2021
Doi
10.1080/09583157.2021.1881446
Le DOI est une URL unique de référencement d'une publication.
Il est donc plus fiable et permanent qu'une URL classique
Issn
0958-3157
L’ISSN est un code de 8 chiffres servant à identifier
les journaux, revues, magazines, périodiques de toute nature et
sur tous supports, papier comme électronique.
Url publication