A replacement series evaluation of competition between rice (Oryza sativa L.) and rice barnyardgrass (Echinochloa oryzicola Vasing)

Scientific Research and Essays

Hashem Aminpanah¹ 

关键词:  ;    Competitiveness;    rice;    rice barnyardgrass;    relative yield total.;   

DOI  :  10.5897/SRE11.1310

学科分类：社会科学、人文和艺术（综合）

来源: Academic Journals

【 摘 要 】

To evaluate the competitive ability of two rice cultivars with rice barnyardgrass (ECPH), a pot experiment was carried out in a replacement series study. Treatments were arranged as a factorial with two cultivars (Hashemi, and Deylamani) and five rice: rice barnyardgrass mixture proportions (8:0, 6:2, 4:4, 2:6 and 0:8). The experiment was conducted as a randomized complete block design with three replications. Relative yield total of above ground dry weight, root dry weight and leaf area showed that rice cultivars and rice barnyardgrass were competing for the same resources. In general, replacement series curves and RCC values demonstrated that Deylamani was morecompetitivethan rice barnyardgrass and rice barnyardgrass was more competitive than Hahsemi. This experiment confirmed that there are differences in weed competitiveness among rice cultivars.

【 授权许可】

CC BY