Alcântara, Lara Maisa da Silva and Lisboa, Lucas Aparecido Manzani and Storti, Silvia Maria Marinho and Lima, Ana Eliza da Silva and Crispim, Nubia Priscila de Olibveira and Silva, Gabriel Geminiano da and Cardoso, Alan dos Santos (2018) Initial Development of Sunflower (Helianthus annuus L.) under Weed Competition with Different Species of Grasses. Journal of Experimental Agriculture International, 29 (2). pp. 1-11. ISSN 24570591
Lisboa2922018JEAI45613.pdf - Published Version
Download (663kB)
Abstract
Introduction: All cultivated plants are subject to intra and interspecific grass competition, once this competition may gradually increase within the crop cycle.
Objective: In view of the above, this work aims to evaluate the initial development of sunflower, when submitted to competition with different species of grasses.
Material and Methods: A randomized block design was installed in a 2x4 factorial scheme, with two grass species, Urochloa decumbens cv. Basilisk and Panicum maximum cv. Mombasa, with four densities of competition with grasses, plus a control group (absence of grass) and four replications, total of 36 plots.
Results and Discussion: During the sowing of the grasses, the following densities were considered: low; average; high and very high density of competition. While there was an increase in density of competition, sunflower development was impaired.
Conclusion: The initial development of sunflower was impaired, with a yield of 49.06 cm2 for each weed and Panicum maximum species caused greater damage to the crop. The aerial part and the sunflower stomata were compromised.
Item Type: | Article |
---|---|
Subjects: | Article Archives > Agricultural and Food Science |
Depositing User: | Unnamed user with email support@articlearchives.org |
Date Deposited: | 10 Apr 2023 05:38 |
Last Modified: | 21 Oct 2024 04:12 |
URI: | http://archive.paparesearch.co.in/id/eprint/954 |