938 resultados para ANDROCTONUS-AUSTRALIS-HECTOR
Resumo:
Emex australis and E. spinosa are significant weed species in wheat and other crops. Information on the extent of competition of the Emex species will be helpful to access yield losses in wheat. Field experiments were conducted to quantify the interference of tested weed densities each as single or mixture of both at 1:1 on their growth and yield, wheat yield components and wheat grain yield losses in two consecutive years. Dry weight of both weed species increased from 3-6 g m-2 with every additional plant of weed, whereas seed number and weight per plant decreased with increasing density of either weed. Both weed species caused considerable decrease in yield components like spike bearing tillers, number of grains per spike, 1000-grain weight of wheat with increasing density population of the weeds. Based on non-linear hyperbolic regression model equation, maximum yield loss at asymptotic weed density was estimated to be 44 and 62% with E. australis, 56 and 70% with E. spinosa and 63 and 72% with mixture of both species at 1:1 during both year of study, respectively. It was concluded that E. spinosa has more competition effects on wheat crop as compared to E. australis.
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... "Je viens vous supplier d'être le médiateur entre mon père et moi"
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... "La musique élève l'âme en lui donnant plus de sensibilité."
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Demande une classe au Conservatoire
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... "Permettez-moi de vous rendre la parole que vous m'avez donnée... pour la place de chef de chant"
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Au sujet d'un concert
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... "Veuillez permettre à vos artistes de me donner leur concours
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Au sujet d'un concert
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Au sujet de la transposition pour contralto du rôle d'Orphée pour Madame Stolz
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... "Il est important que le programme du concert soit fixé"