Biologically active secondary metabolites of barley. I. Developing techniques and assessing allelopathy in barley

Allelopathic effects of barley (Hordeum vulgare L.) on white mustard (Sinapis alba L.) were assessed using modified bioassays that reduced other environmental influences. In a Petri dish bioassay, germination of white mustard was delayed and the radicle lengths were significantly inhibited at a dens...

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Bibliographic Details
Published inJournal of chemical ecology Vol. 19; no. 10
Main Authors Liu, D.L, Lovett, J.V
Format Journal Article
LanguageEnglish
Published 01.10.1994
Subjects
ALELOPATIA
ALELOQUIMICOS
ALLELOPATHIE
BRASSICA ALBA
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
CULTIVO HIDROPONICO
CULTURE HYDROPONIQUE
DESHERBAGE
DOSAGE BIOLOGIQUE
ENSAYO BIOLOGICO
ESCARDA
GERMINACION
GERMINATION
HORDEUM VULGARE
METABOLITE
METABOLITOS
NOUVELLE GALLES DU SUD
NUEVA GALES DEL SUR
RACINE
RAICES
SUBSTANCE ALLELOCHIMIQUE
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Summary:Allelopathic effects of barley (Hordeum vulgare L.) on white mustard (Sinapis alba L.) were assessed using modified bioassays that reduced other environmental influences. In a Petri dish bioassay, germination of white mustard was delayed and the radicle lengths were significantly inhibited at a density of 0.5 barley seed/cm2. In a 'siphoning' bioassay apparatus, when the two species were sown together, radicle elongation of white mustard was not inhibited one day after sowing but became increasingly inhibited as bioassay time increased. Barley allelochemicals were released from the roots in a hydroponic system for at least 70 days after commencement of barley germination. Solutions removed from the hydroponic system of growing barley delayed germination and inhibited growth of white mustard. The allelopathic activity of barley was further confirmed at a density of 0.3 barley seed/cm2 in a modified stairstep apparatus
Bibliography:F60
H50
H60
9452842
ISSN:0098-0331
1573-1561