Allelopathic effects of eucalyptus salubris F. Muell. and E. Brockwayii C.A. gardner on germination and seedlings growth of prairie ground cherry (physalis hederifolia A. Gray)

H. Wu, J. M. Lin, J. B. Zhang

Research output: Contribution to journalArticle

Abstract

We evaluated the allelopathic potential of two selected Eucalyptus species (Eucalyptus salubris F. Muell. and E. brockwayii C.A. Gardner) on noxious perennial weed prairie ground cherry (Physalis hederifolia A. Gray). Steam distillation of eucalyptus leaves produced two bioactive fractions: essential oil fraction and the aqueous volatile fractions (AVFs). Both the essential oils and the AVFs inhibited the germination and growth of prairie ground cherry, however, the essential oils of E. salubris and E. brockwayii was more inhibitory than commercial eucalyptus essential oil. In addition, the inhibitory effects of E. salubris on the germination and growth of weed were higher than E. brockwayii. At 0.15 ml/L oil concentration, E. salubris inhibited the germination and seedling growth of prairie ground cherry by 94-95% and completely suppressed these at concentrations > 0.45 ml/L. The AVFs of both eucalyptus species also completely inhibited the germination and seedling growth at 75% AVF concentration. In glass house, the foliar application of essential oils severely damaged the seedlings of prairie ground cherry. At 21 days after foliar application, the E. salubris essential oil at 20% concentrations complete killed 5-leaf old seedlings. Thus eucalyptus essential oils could be further exploited to control weeds in integrated weed management.

Original languageEnglish
Pages (from-to)109-119
Number of pages11
JournalAllelopathy Journal
Volume46
Issue number1
DOIs
Publication statusPublished - 01 Jan 2019

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Physalis
prairies
Eucalyptus
seedling growth
essential oils
germination
foliar application
water
noxious weeds
perennial weeds
integrated weed management
seedlings
weed control
leaves
weeds
greenhouses
oils

Cite this

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title = "Allelopathic effects of eucalyptus salubris F. Muell. and E. Brockwayii C.A. gardner on germination and seedlings growth of prairie ground cherry (physalis hederifolia A. Gray)",
abstract = "We evaluated the allelopathic potential of two selected Eucalyptus species (Eucalyptus salubris F. Muell. and E. brockwayii C.A. Gardner) on noxious perennial weed prairie ground cherry (Physalis hederifolia A. Gray). Steam distillation of eucalyptus leaves produced two bioactive fractions: essential oil fraction and the aqueous volatile fractions (AVFs). Both the essential oils and the AVFs inhibited the germination and growth of prairie ground cherry, however, the essential oils of E. salubris and E. brockwayii was more inhibitory than commercial eucalyptus essential oil. In addition, the inhibitory effects of E. salubris on the germination and growth of weed were higher than E. brockwayii. At 0.15 ml/L oil concentration, E. salubris inhibited the germination and seedling growth of prairie ground cherry by 94-95{\%} and completely suppressed these at concentrations > 0.45 ml/L. The AVFs of both eucalyptus species also completely inhibited the germination and seedling growth at 75{\%} AVF concentration. In glass house, the foliar application of essential oils severely damaged the seedlings of prairie ground cherry. At 21 days after foliar application, the E. salubris essential oil at 20{\%} concentrations complete killed 5-leaf old seedlings. Thus eucalyptus essential oils could be further exploited to control weeds in integrated weed management.",
keywords = "Allelopathy, Aqueous volatile fractions, Essential oil fraction, Eucalyptus, Eucalyptus brockwayii, Eucalyptus salubris, Physalis hederifolia, Prairie ground cherry, Seed germination, Seedlings growth",
author = "H. Wu and Lin, {J. M.} and Zhang, {J. B.}",
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T1 - Allelopathic effects of eucalyptus salubris F. Muell. and E. Brockwayii C.A. gardner on germination and seedlings growth of prairie ground cherry (physalis hederifolia A. Gray)

AU - Wu, H.

AU - Lin, J. M.

AU - Zhang, J. B.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - We evaluated the allelopathic potential of two selected Eucalyptus species (Eucalyptus salubris F. Muell. and E. brockwayii C.A. Gardner) on noxious perennial weed prairie ground cherry (Physalis hederifolia A. Gray). Steam distillation of eucalyptus leaves produced two bioactive fractions: essential oil fraction and the aqueous volatile fractions (AVFs). Both the essential oils and the AVFs inhibited the germination and growth of prairie ground cherry, however, the essential oils of E. salubris and E. brockwayii was more inhibitory than commercial eucalyptus essential oil. In addition, the inhibitory effects of E. salubris on the germination and growth of weed were higher than E. brockwayii. At 0.15 ml/L oil concentration, E. salubris inhibited the germination and seedling growth of prairie ground cherry by 94-95% and completely suppressed these at concentrations > 0.45 ml/L. The AVFs of both eucalyptus species also completely inhibited the germination and seedling growth at 75% AVF concentration. In glass house, the foliar application of essential oils severely damaged the seedlings of prairie ground cherry. At 21 days after foliar application, the E. salubris essential oil at 20% concentrations complete killed 5-leaf old seedlings. Thus eucalyptus essential oils could be further exploited to control weeds in integrated weed management.

AB - We evaluated the allelopathic potential of two selected Eucalyptus species (Eucalyptus salubris F. Muell. and E. brockwayii C.A. Gardner) on noxious perennial weed prairie ground cherry (Physalis hederifolia A. Gray). Steam distillation of eucalyptus leaves produced two bioactive fractions: essential oil fraction and the aqueous volatile fractions (AVFs). Both the essential oils and the AVFs inhibited the germination and growth of prairie ground cherry, however, the essential oils of E. salubris and E. brockwayii was more inhibitory than commercial eucalyptus essential oil. In addition, the inhibitory effects of E. salubris on the germination and growth of weed were higher than E. brockwayii. At 0.15 ml/L oil concentration, E. salubris inhibited the germination and seedling growth of prairie ground cherry by 94-95% and completely suppressed these at concentrations > 0.45 ml/L. The AVFs of both eucalyptus species also completely inhibited the germination and seedling growth at 75% AVF concentration. In glass house, the foliar application of essential oils severely damaged the seedlings of prairie ground cherry. At 21 days after foliar application, the E. salubris essential oil at 20% concentrations complete killed 5-leaf old seedlings. Thus eucalyptus essential oils could be further exploited to control weeds in integrated weed management.

KW - Allelopathy

KW - Aqueous volatile fractions

KW - Essential oil fraction

KW - Eucalyptus

KW - Eucalyptus brockwayii

KW - Eucalyptus salubris

KW - Physalis hederifolia

KW - Prairie ground cherry

KW - Seed germination

KW - Seedlings growth

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U2 - 10.26651/allelo.j/2019-46-1-1202

DO - 10.26651/allelo.j/2019-46-1-1202

M3 - Article

VL - 46

SP - 109

EP - 119

JO - Allelopathy Journal

JF - Allelopathy Journal

SN - 0971-4693

IS - 1

ER -