SciELO - Scientific Electronic Library Online

 
vol.3 issue2Evaluation of Creole avocados in Nuevo León, Mexico: southern regionPhysical quality from rainfall Mexican bread wheat (Triticum aestivum L.) grains author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Revista mexicana de ciencias agrícolas

Print version ISSN 2007-0934

Abstract

YANEZ JUAREZ, Moisés Gilberto et al. Alternatives for the control of powdery mildew (Oidium sp.) in cucumbers (Cucumis sativus L.). Rev. Mex. Cienc. Agríc [online]. 2012, vol.3, n.2, pp.259-270. ISSN 2007-0934.

This research was conducted to know the effect of phosphorous and potassium salts in the growth and control of powdery mildew (Oidium sp.) in cucumbers. Cucumber plants of the variety Poinset 76 with signs of the disease were sprayed with potassium bicarbonate, sodium bicarbonate, monopotassium sulphate, potassium nitrate, potassium chloride and potassium phosphite solutions. The application of salts showed no significant effects (p≤ 0.05) on the height and number of leaves of plants evaluated. With potassium phosphite, the incidence of the disease varied between 27.9 and 32.4%; with potassium bicarbonate, it was between 19.9 and 29.5%, and in the control, variation went between 44.1 and 47.4%. Twenty-six days after the first application (dda), plants treated with potassium bicarbonate and potassium phosphite showed 67.7 and 62.0% less severity than the controls. Forty-two dda with potassium bicarbonate and potassium phosphite, there was 49.4 and 44.5% less severity than in the control. Results showed that the potassium phosphite and potassium bicarbonate at 5 and 4.7 g L, respectively, reduced significantly (p≤ 0.05) the incidence and severity of the disease.

Keywords : Oidium; cucurbits; phytomineralotherapy.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License