| Popis: |
Two field experiments were conducted during 2018 and 2019 to examined the effect of herbicides and hand hoeing on productivity and quality characters of Egyptian cotton (Gossypium barbadense L.)cultivar Giza 94. In summary, our work found that the highest effect on the fresh and dry weight of Portulaca olereceae and Echinochloa colonum was achieved by twice hand hoeing and pantira® + fuzilade® after 50 and 70 days of planting. Whereas, during the first season twice hand hoeing recorded the highest decreased value of the fresh weight of Portulaca olereceae (51.25a) after 50 days of planting followed by Pantira® + Fuzilade®(88.75 b). When recording the fresh weight for Echinochloa colonum the highest effect achieved twice hand hoeing (225.5 d and 470 b) after 50 and 70 days, respectively. During the second season 2019 after 50 days of planting the best results for biomass fresh weight achieved against Portulaca olereceae by twice hand hoeing (41.25c) and pantira® + fuzilade®(78.75b). whereas, the same results were achieved against the biomass fresh weight of Echinochloa colonum after 50 days by twice hand hoeing (21.55d) and pantira® + fuzilade®(25.9c). When determined the impact of herbicides on the chlorophyll, plant height, the number of bolls /plants, boll weight, fruit branches, weight 100 seeds and cotton of yield during seasons 2018 and 2019. The highest value was recorded by twice hand hoeing and pantira® + fuzilade for all growth characteristics and yield. |
