Repercussions of four herbicides on reproductive and vegetative development in potted grapevines

Research output: Contribution to journalArticle

Abstract

Spring drift of herbicides can have devastating consequences on grapevines. The impact of 2,4-dichlorophenoxyacetic acid (2,4-D), dichloro-2-methoxybenzoic acid (Dicamba), 2-methyl-4-chlorophenoxyacetic acid (MCPA) and glyphosate exposure on reproductive and vegetative development was investigated. Methods and Results: Simulated herbicide drifts were applied to potted vines at the cessation of flowering. Leaf gas exchange and biomass, root structural biomass and carbohydrate reserves, fruit yield and compound bud necrosis were assessed, along with berry composition, including the primary metabolites, at fruit maturity. Fruit yield was reduced by 2,4-D without any detriment to most aspects of berry composition. While root structural development was curtailed by 2,4-D, Dicamba and MCPA, none of the herbicides altered the reserve level of root total non-structural carbohydrates. Primary bud necrosis was evident following 2,4-D and Dicamba exposure, especially in younger buds. Conclusions: Exposure to 2,4-D may be particularly damaging to fruit yield during the current season because of an increased risk of bunch necrosis. Bud fruitfulness can be impaired by 2,4-D and Dicamba because of the increased potential for primary bud necrosis. Significance of the Study: Auxin-type herbicides can limit fruit yield during the current and next season. Compared to cane pruning, spur pruning may minimise the detrimental effects of these herbicides on fruitfulness.
Original languageEnglish
JournalAustralian Journal of Grape and Wine Research
DOIs
Publication statusPublished - 29 Apr 2019

Fingerprint

2,4-D
herbicides
dicamba
fruit yield
buds
necrosis
pruning
small fruits
4-CPA
MCPA (herbicide)
carbohydrates
fruit maturity
biomass
canes
glyphosate
vines
gas exchange
auxins
metabolites
flowering

Cite this

@article{f1a97e632fb742c2865bc4afe0891048,
title = "Repercussions of four herbicides on reproductive and vegetative development in potted grapevines",
abstract = "Spring drift of herbicides can have devastating consequences on grapevines. The impact of 2,4-dichlorophenoxyacetic acid (2,4-D), dichloro-2-methoxybenzoic acid (Dicamba), 2-methyl-4-chlorophenoxyacetic acid (MCPA) and glyphosate exposure on reproductive and vegetative development was investigated. Methods and Results: Simulated herbicide drifts were applied to potted vines at the cessation of flowering. Leaf gas exchange and biomass, root structural biomass and carbohydrate reserves, fruit yield and compound bud necrosis were assessed, along with berry composition, including the primary metabolites, at fruit maturity. Fruit yield was reduced by 2,4-D without any detriment to most aspects of berry composition. While root structural development was curtailed by 2,4-D, Dicamba and MCPA, none of the herbicides altered the reserve level of root total non-structural carbohydrates. Primary bud necrosis was evident following 2,4-D and Dicamba exposure, especially in younger buds. Conclusions: Exposure to 2,4-D may be particularly damaging to fruit yield during the current season because of an increased risk of bunch necrosis. Bud fruitfulness can be impaired by 2,4-D and Dicamba because of the increased potential for primary bud necrosis. Significance of the Study: Auxin-type herbicides can limit fruit yield during the current and next season. Compared to cane pruning, spur pruning may minimise the detrimental effects of these herbicides on fruitfulness.",
keywords = "chemical spray drift, crop injury, grapevine pruning, primary bud necrosis, root growth",
author = "Rossouw, {G. C.} and Holzapfel, {B. P.} and Rogiers, {S. Y.} and Gouot, {J. C.} and Schmidtke, {L. M.}",
year = "2019",
month = "4",
day = "29",
doi = "10.1111/ajgw.12395",
language = "English",
journal = "Australian Journal of Grape and Wine Research",
issn = "1322-7130",
publisher = "Wiley-Blackwell",

}

TY - JOUR

T1 - Repercussions of four herbicides on reproductive and vegetative development in potted grapevines

AU - Rossouw, G. C.

AU - Holzapfel, B. P.

AU - Rogiers, S. Y.

AU - Gouot, J. C.

AU - Schmidtke, L. M.

PY - 2019/4/29

Y1 - 2019/4/29

N2 - Spring drift of herbicides can have devastating consequences on grapevines. The impact of 2,4-dichlorophenoxyacetic acid (2,4-D), dichloro-2-methoxybenzoic acid (Dicamba), 2-methyl-4-chlorophenoxyacetic acid (MCPA) and glyphosate exposure on reproductive and vegetative development was investigated. Methods and Results: Simulated herbicide drifts were applied to potted vines at the cessation of flowering. Leaf gas exchange and biomass, root structural biomass and carbohydrate reserves, fruit yield and compound bud necrosis were assessed, along with berry composition, including the primary metabolites, at fruit maturity. Fruit yield was reduced by 2,4-D without any detriment to most aspects of berry composition. While root structural development was curtailed by 2,4-D, Dicamba and MCPA, none of the herbicides altered the reserve level of root total non-structural carbohydrates. Primary bud necrosis was evident following 2,4-D and Dicamba exposure, especially in younger buds. Conclusions: Exposure to 2,4-D may be particularly damaging to fruit yield during the current season because of an increased risk of bunch necrosis. Bud fruitfulness can be impaired by 2,4-D and Dicamba because of the increased potential for primary bud necrosis. Significance of the Study: Auxin-type herbicides can limit fruit yield during the current and next season. Compared to cane pruning, spur pruning may minimise the detrimental effects of these herbicides on fruitfulness.

AB - Spring drift of herbicides can have devastating consequences on grapevines. The impact of 2,4-dichlorophenoxyacetic acid (2,4-D), dichloro-2-methoxybenzoic acid (Dicamba), 2-methyl-4-chlorophenoxyacetic acid (MCPA) and glyphosate exposure on reproductive and vegetative development was investigated. Methods and Results: Simulated herbicide drifts were applied to potted vines at the cessation of flowering. Leaf gas exchange and biomass, root structural biomass and carbohydrate reserves, fruit yield and compound bud necrosis were assessed, along with berry composition, including the primary metabolites, at fruit maturity. Fruit yield was reduced by 2,4-D without any detriment to most aspects of berry composition. While root structural development was curtailed by 2,4-D, Dicamba and MCPA, none of the herbicides altered the reserve level of root total non-structural carbohydrates. Primary bud necrosis was evident following 2,4-D and Dicamba exposure, especially in younger buds. Conclusions: Exposure to 2,4-D may be particularly damaging to fruit yield during the current season because of an increased risk of bunch necrosis. Bud fruitfulness can be impaired by 2,4-D and Dicamba because of the increased potential for primary bud necrosis. Significance of the Study: Auxin-type herbicides can limit fruit yield during the current and next season. Compared to cane pruning, spur pruning may minimise the detrimental effects of these herbicides on fruitfulness.

KW - chemical spray drift

KW - crop injury

KW - grapevine pruning

KW - primary bud necrosis

KW - root growth

UR - http://www.scopus.com/inward/record.url?scp=85065179006&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065179006&partnerID=8YFLogxK

U2 - 10.1111/ajgw.12395

DO - 10.1111/ajgw.12395

M3 - Article

JO - Australian Journal of Grape and Wine Research

JF - Australian Journal of Grape and Wine Research

SN - 1322-7130

ER -