Herbicide selectivity: I - use of additional check methods in sugarcane experiments

Planta Daninha

Azania, C.A.M.¹  Rolim, J.C.¹  Casagrande, A.A.¹  Instituto Agronômico, Ribeirão Preto¹  Lavorenti, N.A.¹  UNESP¹  Azania, A.A.P.M.¹  UFSCar¹ 

关键词: sugarcane;    herbicides;    selectivity;    statistics;    and experimental precision.;   

DOI  :  10.1590/S0100-83582005000400014

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 】

This research aimed to evaluate the experimental precision of randomized complete block design and randomized complete block design using additional checks on herbicide selectivity using a third cut ratoon, cv RB835089. The experimental designs consisted of a randomized complete block and a randomized complete block with additional checks in four replications. The treatments were diuron + hexazinone, azafenidin + hexazinone, metribuzin and isoxaflutole and hand-weeded checks. Sugarcane height, stand, weight and recoverable sugar were evaluated. The randomized complete block design with additional checks was more effective than the randomized complete block design. However, when comparing treatment averages, the Student's t test was more sensitive than the Tukey's test, since it presented more treatments with differences in relation to the check, with higher experimental precision.

【 授权许可】

Unknown