Grass herbicides effects, applied in post-emergence, on grain oats, forage oats and wheat

Planta Daninha

UFRGS¹  UFRGS, Porto Alegre¹  Fleck, Nilson G.¹  Vargas, Leandro¹  Vidal, Ribas A.¹  Cunha, Marcos M. da¹ 

关键词: Avena sativa;    Avena strigosa;    Triticum aestivum;    diclofop;    fenoxaprop.;   

DOI  :  10.1590/S0100-83581998000100006

学科分类：农业科学（综合）

来源: Sociedade Brasileira da Ciencia das Plantas Daninhas (S B C P D) / Brazilian Society of Herb Science

【 摘 要 】

During the growing seasons of the 1993 and 1994, two trials were conducted, being one in pots in greenhouse, at the UFRGS Agronomy School, in Porto Alegre/RS, and the other at field conditions at the UFRGS Agronomic Experimental Station, in Eldorado do Sul/RS. The objective of this research was to investigate tolerance levels of grain oat genotypes, of forage oats, and of wheat to herbicides with grass activity applied in post-emergence. Ten oat genotypes (Avena sativa L.) forage oats (Avena strigosa Schreb), and wheat (Triticum aestivum L.), were evaluated, which were treated with the herbicides clethodim, diclofop, fenoxaprop, fluazifop, haloxyfop, and sethoxydim. Variables evaluated were plant injury by visual rating, and grain yield. It was detected that fenoxaprop controls both oat species at level over 98% and presents selectivity to wheat (BR-23). On the other hand, diclofop presents control level higher than 94% for grain oat, whereas for forage oats shows moderate damage, and presents high selectivity for wheat. The remainder herbicides behaved as not selective for all genotypes tested.

【 授权许可】

Unknown