SciELO - Scientific Electronic Library Online

 
vol.10 issue1Effect of N, P, K, Mg, Ca and B deficiencies on the accumulation and distribution of dry mass in guava plants (Psidium guajava L.) var. Palmira ICA II in the nursery phaseEffect of hidroxy-carboxylic acids on the bio-regulation of stress caused by herbicides in tomato crops author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista Colombiana de Ciencias Hortícolas

Print version ISSN 2011-2173

Abstract

CARDONA, WILLIAM ANDRÉS; BAUTISTA-MONTEALEGRE, LUIS GABRIEL; FLOREZ-VELASCO, NIXON  and  FISCHER, GERHARD. Biomass and root development response of lulo (Solanum quitoensevar. septentrionale) plants to shading and waterlogging. rev.colomb.cienc.hortic. [online]. 2016, vol.10, n.1, pp.53-65. ISSN 2011-2173.  https://doi.org/10.17584/rcch.2016v10i1.5124.

Climate change and its variability increase rainy periods, generating flooding and waterlogging, which affect the physiological development of cultivated species. In lulo, although growth under shade is recommended, the effect of stress due to waterlogging was studied under conditions of partial shading in greenhouse. Young lulo plants were planted in 5 L plastic pots with soil and sand quartzite at a ratio of 1: 1 v/v as substrate. The effect of 65% shading and no shading during four periods of waterlogging, 0, 3, 6 and 9 days, and a recovery period of 9 days each on the development of plant biomass and roots was determined. The shading decreased biomass accumulation in all of the vegetative organs, especially the leaves (-22.7%). No interactions between the shading and waterlogging were measured. The root system proved to be the organ most affected by the periods of increased waterlogging (over 6 and 9 days), with reductions in the diameter of the root collar, length of taproot, volume and dry weight of roots, while; as a consequence, the shoot/root ratio of the biomass increased due to rhizosphere oxygen deprivation. During the recovery period of 9 days, the negative effect of the waterlogging persisted and was further aggravated for the volume and root length variables.

Keywords : dry weight; root collar; root length; shoot/root ratio.

        · 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