Results 141 to 150 of about 2,017 (187)

Xanthium spinosum L.

2021
Published as part of Info Flora, 2021,
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Xanthium spinosum L.

2018
Xanthium spinosum L. Artbeschreibung: 15-80 cm hoch, verzweigt. Stängel kurz behaart, gelblich, unter den Blättern mit 1,5-2,5 cm langen, 3teiligen gelben Stacheln. Blätter 3lappig oder ungeteilt, ganzrandig, unterseits weissfilzig. Blütenköpfe eingeschlechtig, männliche 4-5 mm lang, gelblich, vielblütig, einzeln oder geknäuelt in oberen Blattwinkeln ...
Konrad Lauber, Gerhart Wagner, Andreas Gygax   +2 more
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Content of metals in the seeds of Xanthium spinosum and Xanthium italicum

Fitoterapia, 2003
The quantitative analysis of metallic cations in the seeds of Xanthium spinosum L. and Xanthium italicum Moretti was performed. The differences for the two species reflect the different presence of some organic compounds having a ligand character.
L, Chirigiu, I, Tiţa, S, Radu, C, Capitanescu   +3 more
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Xanthium spinosum L. - Bathurst burr

2012
Bathurst burr, Xanthium spinosum (Asteraceae), is a widespread summer annual weed in rangeland, pastures and crops in eastern Australia. Possibilities for both the inundative (bioherbicide) and classical biocontrol of Bathurst burr have been explored. In the 1980s–90s, the anthracnose fungus Colletotrichum orbiculare that naturally occurs on Bathurst ...
Louise Morin, Bruce A Auld
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Sesquiterpene and diterpene glycosides from Xanthium spinosum

Phytochemistry, 1996
Abstract Two new sesquiterpene lactone glycosides and three new kaurene glycosides closely related to carboxyatractyloside and atractyloside, together with the 3′, 4′-didesulphated-carboxyatractyloside and 3′, 4′-didesulphated-atractyloside, were isolated from the aerial parts of Xanthium spinosum . Their structures were established by spectroscopic
PIACENTE, Sonia, PIZZA, Cosimo, DE TOMMASI, Nunziatina, DE SIMONE, Francesco   +3 more
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Possible control of Xanthium spinosum by a fungus

Agriculture, Ecosystems & Environment, 1988
Abstract Xanthium spinosum L. is among the world's worst weeds and is particularly important in Australia. Although susceptible to 2,4-D it often occurs near crops where the herbicide cannot be used. The fungus, Colletotrichum orbiculare (Berk. et Mont.) v.
Bruce A. Auld, Cheryl F. McRae, Madeleine M. Say   +2 more
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Anthracnose of Xanthium Spinosum - Quantitative Disease Assessment and Analysis.

Australasian Plant Pathology, 1988
A sensitive disease assessment and analysis technique was developed for anthracnose of the weed Xanthium spinosum caused by Colletotrichum orbiculare. Time to plant death was used to discriminate between treatments. The disease rating scale reflected disease progression patterns rather than static symptoms. The mean daily rating in all treatments up to
CF McRae, HR Ridings, BA Auld
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Field applications of Colletotrichum orbiculare to control Xanthium spinosum

Agriculture, Ecosystems & Environment, 1990
The fungal pathogens Colletotrichum orbiculare is being assessed as the basis for a mycoherbicide for biological control of Xanthium spinosum, Bathurst burr or spiny cockleburr. Following preliminary small plot field applications in summer 1987/88, applications of aqueous spore suspensions of 106 or 107 spores ml−1 were made at four sites in summer ...
B.A. Auld, M.M. Say, H.I. Ridings, J. Andrews   +3 more
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Sclerotinia Minor - a Pathogen of Bathurst Burr (Xanthium Spinosum).

Australasian Plant Pathology, 1993
A stem rot, similar to that caused by Sclerotinia minor on sunflower (Helianthus annuus), was observed on the weed, Bathurst Burr (Xanthium spinosum), in a sunflower field trial at Numurkah, in north-central Victoria. It was confirmed that the fungus causing the stem rot on the Bathurst Burr was S. minor.
RG Clarke, IJ Porter
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Emergence and flowering in Xanthium spinosum

Agriculture, Ecosystems & Environment, 1993
Abstract Xanthium spinosum , Bathurst burr or spiny clotburr is an introduced widespread annual weed in eastern Australia and several other countries. Experiments and field observations were made to contribute to understanding the species' success. Seed dormancy varied between sites and was not affected by partial fruit coat removal. Seeds in fruits
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