Redirigiendo al acceso original de articulo en 15 segundos...
ARTÍCULO
TITULO

Influence of dry leaves of common tree and shrub species from southern Chile on the growth of lettuce infected with Meloidogyne hapla

Nolberto Arismendi    
Laura Böhm    

Resumen

Extracts of many plant species have shown nematicide activity attributable to phytochemicals present in their tissues or formed during a degradation process. Nevertheless, before the application of plant compounds in the field, it is necessary to know their effect on plant hosts. Three concentrations (1, 2.5 and 5% w/w) of dry leaves of Buddleja globosa, Drymis winteri, Eucalyptus globulus, Gevuina avellana, Laurelia sempervirens and Ugni molinae were evaluated on growth parameters (plant height, root length and leaf dry matter) in plants of Lactuca sativa infested with Meloidogyne hapla. Lettuce growth parameters were significantly affected by the interaction between the species and dry leaf tissues concentrations. Drymis winteri showed the biggest reductive effect on the evaluated parameters, but not significantly different as the effects from E. globulus. Independently of nematode infestation in lettuce plants, the incorporation of greater than 5% of dry leaves of D. winteri, E. globulus, G. avellana, L. sempervirens and U. molinae into the substrate had an important effect in the reduction of aerial biomass, estimating that the increase of dry leaf concentration explained about 60% of the reduction of this parameter. This suggests that the plant species evaluated have common active components with phytotoxic activity on lettuce plants, even though no complete information are available for concentrations, interactions and synthesis of derivatives during the degradation process of these tissues.

 Artículos similares

       
 
William Overbeek, Marc Lucotte, Joël D?Astous-Pagé, Thomas Jeanne, Clara Pin, Matthieu Moingt and Richard Hogue    
Glyphosate-based herbicide (GBH) usage is ubiquitous in Quebec field crops, apart from organic management. As glyphosate generally degrades rapidly in agricultural soils, aminomethylphosphonic acid (AMPA) is produced and persists longer than glyphosate. ... ver más
Revista: Agronomy

 
Long Wan, Yi Jian, Mei Zhang, Jing Tong, Ansa Rebi and JinXing Zhou    
Due to the influence of the Asian southwest monsoon, seasonal drought is serious and water resources are scarce in the Yunnan province of Southwest China. More effective water-saving irrigation methods should be developed to solve the problem of water sc... ver más
Revista: Agronomy

 
Reagan W. Hejl, Matthew M. Conley, Desalegn D. Serba and Clinton F. Williams    
The development of management plans which lead to water efficient landscapes is a growing need in the turfgrass community. While deficit irrigation as a scheduling method can improve water conservation, more information is desired on how to best leverage... ver más
Revista: Agronomy

 
Eric Bisangwa, Jonathan D. Richwine, Patrick D. Keyser, Amanda J. Ashworth and Forbes R. Walker    
The identification of appropriate nitrogen (N) rates for native warm-season grasses (NWSG) is needed to inform forage management in the southeastern United States. Experiments were conducted in Knoxville and Springfield, TN, from 2015 to 2019, to evaluat... ver más
Revista: Agronomy

 
Kurt Heil, Christian Klöpfer, Kurt-Jürgen Hülsbergen and Urs Schmidhalter    
This study had three main objectives. First, weather indices were listed and their derivations were described to show which weather parameters could be used to describe the influence on agricultural yields. Second, farmers and agricultural scientists sho... ver más
Revista: Agriculture