SciELO - Scientific Electronic Library Online

 
vol.36Application of Plant Growth Regulators to Stipa krylovii in the Xilin Gol GrasslandAllelopathic potential of Cover Crops in Control of Shrubby False Buttonweed (Spermacoce verticillata) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Planta Daninha

Print version ISSN 0100-8358On-line version ISSN 1806-9681

Abstract

REHMAN, A. et al. Competitive Ability of Santa-Maria (Parthenium hysterophorus L.) with Spring Maize. Planta daninha [online]. 2018, vol.36, e018172580.  Epub July 10, 2018. ISSN 0100-8358.  http://dx.doi.org/10.1590/s0100-83582018360100051.

In recent decades, allelopathy has gained considerable attention in sustainable agricultural systems. In the current situation, an attempt has been made to investigate the optimal competition period for weed control in maize. Experiments were designed in randomized complete block design and Parthenium hysterophorus was naturally infested in experimental plots during the spring season 2014 to determine the critical competition period for weed control in maize. The relations between grain yield and different competition durations were determined via regression analyses. The experiment comprised seven treatments viz, control treatment, competition for 30, 45, 60, 75, 90 and 105 days after emergence. The results suggested that a weed-free period (control treatment) of maize was enough to provide acceptable grain yield. Whole season different competition periods and weed-free plots were included in the experiment for yield comparison. The highest grain yield was obtained from plot kept weed-free (control treatment). The results clearly indicated that P. hysterophorus was competitively more aggressive and its control in maize crop provide maximum grain yield.

Keywords : competition; weeds; yields.

        · abstract in Portuguese     · text in English     · English ( pdf )