Seed Germination, Seedling Emergence, and Response to Herbicides of Wild Bushbean (Macroptilium lathyroides)

Chauhan, Bhagirath S. and De Leon, Ma Jenina (2014) Seed Germination, Seedling Emergence, and Response to Herbicides of Wild Bushbean (Macroptilium lathyroides). Weed Science, 62 4: 563-570. doi:10.1614/WS-D-14-00038.1

Author Chauhan, Bhagirath S.
De Leon, Ma Jenina
Title Seed Germination, Seedling Emergence, and Response to Herbicides of Wild Bushbean (Macroptilium lathyroides)
Journal name Weed Science   Check publisher's open access policy
ISSN 0043-1745
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1614/WS-D-14-00038.1
Open Access Status
Volume 62
Issue 4
Start page 563
End page 570
Total pages 8
Place of publication Lawrence, KS United States
Publisher Weed Science Society of America
Collection year 2015
Language eng
Formatted abstract
Experiments were conducted in laboratory and screenhouse to determine the effects of light, temperature, salt and water stress, seed burial depth, and amount of rice residue on seed germination and seedling emergence of wild bushbean and to evaluate the response of that weed to commonly available POST herbicides in the Philippines. Germination (81 to 85%) was not influenced by light;  however, it was higher at 30/20 C (88%) than at 25/15 C (82%) and 35/25 C (80%) day/night
temperatures. The sodium chloride and osmotic potential required for 50% inhibition of maximum germination were 149 mM and  - 20.28 MPa, respectively. Seedling emergence (81%) was similar for seeds placed on the soil surface and for seeds buried up to 4 cm deep. No seedlings emerged from a burial depth of 8 cm. Rice residue applied on the soil surface up to 8 t ha21-1 did not affect seedling emergence (72 to 80%) of wild bushbean. The herbicide bentazon provided 100% control of wild bushbean when applied at the three- to five-leaf stages. However, to achieve 100% control by 2,4-D and metsulfuron-methyl + chlorimuron-ethyl, herbicides had to be applied at the three-leaf stage.   The information gained from this study can help in developing components of integrated weed management programs for wild bushbean. A deep-tillage operation to bury weed seeds below their maximum depth of emergence and early application of an effective POST herbicide can help in
managing this weed in rice fields.
Keyword Bentazon
Wild bushbean
Macroptilium lathyroides
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2015 Collection
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Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
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Created: Fri, 19 Dec 2014, 13:22:35 EST by Bhagirath Chauhan on behalf of Centre for Plant Science