Canola cultivar performance in weed-infested field plots confirms allelopathy ranking fromin vitrotesting

Autor:	Min An, Deirdre Lemerle, James Pratley, David Luckett, Raymond Cowley, Asaduzzaman
Rok vydání:	2014
Předmět:	food.ingredient biology ved/biology Lolium rigidum fungi ved/biology.organism_classification_rank.species food and beverages biology.organism_classification Cultural control Crop food Agronomy Insect Science Sisymbrium orientale Cultivar Weed Canola Agronomy and Crop Science Allelopathy
Zdroj:	Biocontrol Science and Technology. 24:1394-1411
ISSN:	1360-0478 0958-3157
DOI:	10.1080/09583157.2014.942596
Popis:	Crop competition and allelopathy are two cultural control options for possible inclusion in cropping systems. This research aimed to identify superior allelopathic canola genotypes through a two-year field study. First year screening results of 312 diverse Brassica genotypes showed genotypes differed significantly in their ability to suppress weed infestations. Crop plant height was correlated with the competitive ability of several genotypes, while other genotypes showed good weed-suppressive ability despite being short. Thirty-six of the genotypes grown in the field had been previously assessed for their allelopathic ability to inhibit the growth of annual ryegrass (Lolium rigidum) seedlings using an in vitro technique. The highly allelopathic genotypes: Av-opal, Sardi603, Rivette and Atr-beacon performed well against annual ryegrass in the laboratory and also against other species, including Capsella bursa-pastoris, Sisymbrium orientale and Hordeum leporinum in the field. The weakly allelopathic Baross...
Databáze:	OpenAIRE
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