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Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia

Understanding temperature and moisture stress that influence sethoxydim-resistant (R) goosegrass (Eleusine indica) germination is crucial for effective weed control, but little research has been done on the impact of these environmental factors on germination of the R goosegrass biotype. This resear...

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Main Authors: Chuah, Tse Seng, Hiew, Chee Nam, Nursyafiqah Izzati Norzaidi,, Goh, Sunny Eng Giap
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2023
Online Access:http://journalarticle.ukm.my/22565/1/STT%208.pdf
http://journalarticle.ukm.my/22565/
https://www.ukm.my/jsm/
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spelling my-ukm.journal.225652023-11-23T04:24:26Z http://journalarticle.ukm.my/22565/ Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia Chuah, Tse Seng Hiew, Chee Nam Nursyafiqah Izzati Norzaidi, Goh, Sunny Eng Giap Understanding temperature and moisture stress that influence sethoxydim-resistant (R) goosegrass (Eleusine indica) germination is crucial for effective weed control, but little research has been done on the impact of these environmental factors on germination of the R goosegrass biotype. This research aims to confirm sethoxydim resistance in goosegrass and to examine interaction effects of different temperatures and water potentials on germination of the R goosegrass biotype. Dose–response tests showed that the R goosegrass biotype exhibited high resistance level to sethoxydim with 17-fold. In laboratory bioassays, the R goosegrass biotype germinated by 88-100% at 35 °C with water potentials ranging from 0 to -0.80 MPa, but no seed germination occurred at 10 °C and 40 °C under all water potential treatments. With rising water potentials from 0 to -0.80 MPa, seed germination at 15 to 30 °C decreased markedly. The time it took to achieve 50% seed germination (T50) increased drastically when decreasing temperature from 35 to 15 °C. The T50 at 20 to 30 °C also increased as the water potential increased from -0.20 to -0.80 MPa. At 35 °C, however, the water potential level had no impact on T50, implying that the R goosegrass biotype seed is water stress tolerant at 35 °C. The base temperature and base water potentials estimated were 10.6 °C and -1.28 MPa, respectively. These findings can help in determining the optimal time to apply pre-emergent and early post-emergent controls when a large proportion of R goosegrass biotype have already germinated or emerged. Penerbit Universiti Kebangsaan Malaysia 2023 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/22565/1/STT%208.pdf Chuah, Tse Seng and Hiew, Chee Nam and Nursyafiqah Izzati Norzaidi, and Goh, Sunny Eng Giap (2023) Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia. Sains Malaysiana, 52 (7). pp. 1985-1997. ISSN 0126-6039 https://www.ukm.my/jsm/
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Understanding temperature and moisture stress that influence sethoxydim-resistant (R) goosegrass (Eleusine indica) germination is crucial for effective weed control, but little research has been done on the impact of these environmental factors on germination of the R goosegrass biotype. This research aims to confirm sethoxydim resistance in goosegrass and to examine interaction effects of different temperatures and water potentials on germination of the R goosegrass biotype. Dose–response tests showed that the R goosegrass biotype exhibited high resistance level to sethoxydim with 17-fold. In laboratory bioassays, the R goosegrass biotype germinated by 88-100% at 35 °C with water potentials ranging from 0 to -0.80 MPa, but no seed germination occurred at 10 °C and 40 °C under all water potential treatments. With rising water potentials from 0 to -0.80 MPa, seed germination at 15 to 30 °C decreased markedly. The time it took to achieve 50% seed germination (T50) increased drastically when decreasing temperature from 35 to 15 °C. The T50 at 20 to 30 °C also increased as the water potential increased from -0.20 to -0.80 MPa. At 35 °C, however, the water potential level had no impact on T50, implying that the R goosegrass biotype seed is water stress tolerant at 35 °C. The base temperature and base water potentials estimated were 10.6 °C and -1.28 MPa, respectively. These findings can help in determining the optimal time to apply pre-emergent and early post-emergent controls when a large proportion of R goosegrass biotype have already germinated or emerged.
format Article
author Chuah, Tse Seng
Hiew, Chee Nam
Nursyafiqah Izzati Norzaidi,
Goh, Sunny Eng Giap
spellingShingle Chuah, Tse Seng
Hiew, Chee Nam
Nursyafiqah Izzati Norzaidi,
Goh, Sunny Eng Giap
Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia
author_facet Chuah, Tse Seng
Hiew, Chee Nam
Nursyafiqah Izzati Norzaidi,
Goh, Sunny Eng Giap
author_sort Chuah, Tse Seng
title Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia
title_short Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia
title_full Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia
title_fullStr Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia
title_full_unstemmed Seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (Eleusine indica (L.) Gaertn.) from Malaysia
title_sort seed germination characteristics as affected by interaction of moisture stress and temperature in sethoxydim-resistant biotype of goosegrass (eleusine indica (l.) gaertn.) from malaysia
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2023
url http://journalarticle.ukm.my/22565/1/STT%208.pdf
http://journalarticle.ukm.my/22565/
https://www.ukm.my/jsm/
_version_ 1783877719620059136
score 13.211869

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