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Inclusion of Mechanical Tuber Removal into Integrated Weed Management for Nutsedge Control in Vegetable Production- [electronic resource]
Inclusion of Mechanical Tuber Removal into Integrated Weed Management for Nutsedge Control in Vegetable Production- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214095837
- ISBN
- 9798380309738
- DDC
- 635
- 서명/저자
- Inclusion of Mechanical Tuber Removal into Integrated Weed Management for Nutsedge Control in Vegetable Production - [electronic resource]
- 발행사항
- [S.l.]: : University of Florida., 2021
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2021
- 형태사항
- 1 online resource(128 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
- 주기사항
- Advisor: Dittmar, Peter.
- 학위논문주기
- Thesis (Ph.D.)--University of Florida, 2021.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약Purple (Cyperus rotundus L.) and yellow nutsedge (Cyperus esculentus L.) are the one of most troublesome weeds in Florida vegetable production. Nutsedge propagates by producing underground tubers, which are difficult to control with existing chemical or mechanical methods. This research aimed to evaluate a novel technique for mechanical tuber removal (MTR), its economics, and its impact on long-term nutsedge management. Multiple field trials evaluated MTR and its integration with glyphosate (GLY), cowpea cover crop (CC), and repeated MTR during the fallow period for its efficacy on nutsedge. Further, a greenhouse study evaluated the impact of herbicides (GLY, paraquat; PARA, s-metolachlor; DUAL) and a growth regulator (cytokinin) for their impact on breaking nutsedge tuber bud dormancy and apical dominance. The results from our research experiments demonstrated MTR and GLY were effective in significantly reducing the nutsedge density during the fall crop and resulted in 50% lesser tubers compared to non-treated (NT) at the end of the fall crop. Further, our research showed that the nutsedge control increased with the increased number of MTRs or MTR integration with GLY or CC. The integrated nutsedge management using 1-2 MTRs followed by GLY or CC during the fallow period of the first-year and cover crop planting during the fallow period of the second-year resulted in 77 % reduction in nutsedge density and tuber count relative to NT at the end of fall crop in the second-year. The greenhouse study revealed that cytokinin could break tuber bud dormancy. The economic analysis revealed that MTR during the fallow period cost $826 relative to $73 and $200 ha-1 for GLY and CC, respectively. It is important to note that the production cost increases proportionately with the increase in the number of MTRs or the integration of CC and GLY. Therefore, we recommend the growers adopt 1-2 MTR and integrate it with CC or GLY during the first year and then plant cover crop during the second-year fallow period to extend the effective nutsedge control duration till the end of fall crop in the second year.
- 일반주제명
- Horticulture.
- 일반주제명
- Agriculture.
- 일반주제명
- Plant sciences.
- 키워드
- Management
- 키워드
- Nutsedge
- 키워드
- Sustainable
- 키워드
- Vegetables
- 키워드
- Weed
- 기타저자
- University of Florida Horticultural Sciences
- 기본자료저록
- Dissertations Abstracts International. 85-03B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2021 us |||||||||||||||c||eng d■001000016930931
■00520240214095837
■006m o d
■007cr#unu||||||||
■020 ▼a9798380309738
■035 ▼a(MiAaPQ)AAI28411524
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a635
■1001 ▼aRandhawa, Ranjeet Singh.
■24510▼aInclusion of Mechanical Tuber Removal into Integrated Weed Management for Nutsedge Control in Vegetable Production▼h[electronic resource]
■260 ▼a[S.l.]:▼bUniversity of Florida. ▼c2021
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2021
■300 ▼a1 online resource(128 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-03, Section: B.
■500 ▼aAdvisor: Dittmar, Peter.
■5021 ▼aThesis (Ph.D.)--University of Florida, 2021.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aPurple (Cyperus rotundus L.) and yellow nutsedge (Cyperus esculentus L.) are the one of most troublesome weeds in Florida vegetable production. Nutsedge propagates by producing underground tubers, which are difficult to control with existing chemical or mechanical methods. This research aimed to evaluate a novel technique for mechanical tuber removal (MTR), its economics, and its impact on long-term nutsedge management. Multiple field trials evaluated MTR and its integration with glyphosate (GLY), cowpea cover crop (CC), and repeated MTR during the fallow period for its efficacy on nutsedge. Further, a greenhouse study evaluated the impact of herbicides (GLY, paraquat; PARA, s-metolachlor; DUAL) and a growth regulator (cytokinin) for their impact on breaking nutsedge tuber bud dormancy and apical dominance. The results from our research experiments demonstrated MTR and GLY were effective in significantly reducing the nutsedge density during the fall crop and resulted in 50% lesser tubers compared to non-treated (NT) at the end of the fall crop. Further, our research showed that the nutsedge control increased with the increased number of MTRs or MTR integration with GLY or CC. The integrated nutsedge management using 1-2 MTRs followed by GLY or CC during the fallow period of the first-year and cover crop planting during the fallow period of the second-year resulted in 77 % reduction in nutsedge density and tuber count relative to NT at the end of fall crop in the second-year. The greenhouse study revealed that cytokinin could break tuber bud dormancy. The economic analysis revealed that MTR during the fallow period cost $826 relative to $73 and $200 ha-1 for GLY and CC, respectively. It is important to note that the production cost increases proportionately with the increase in the number of MTRs or the integration of CC and GLY. Therefore, we recommend the growers adopt 1-2 MTR and integrate it with CC or GLY during the first year and then plant cover crop during the second-year fallow period to extend the effective nutsedge control duration till the end of fall crop in the second year.
■590 ▼aSchool code: 0070.
■650 4▼aHorticulture.
■650 4▼aAgriculture.
■650 4▼aPlant sciences.
■653 ▼aManagement
■653 ▼aNutsedge
■653 ▼aSustainable
■653 ▼aVegetables
■653 ▼aWeed
■690 ▼a0471
■690 ▼a0479
■690 ▼a0473
■71020▼aUniversity of Florida▼bHorticultural Sciences.
■7730 ▼tDissertations Abstracts International▼g85-03B.
■773 ▼tDissertation Abstract International
■790 ▼a0070
■791 ▼aPh.D.
■792 ▼a2021
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16930931▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
