SciELO - Scientific Electronic Library Online

 
vol.62 issue3Genotypic correlations, phenotypic, environmental and path analysis in tomato tree (Cyphomandra betacea Cav. Sendt.)Study of pollination and floral biology of Passiflora edulis f. edulis Sims as a basis for pre-breeding author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

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

Share


Acta Agronómica

Print version ISSN 0120-2812

Abstract

UNIGARRO MUNOZ, Carlos Andrés  and  VICTORIA KAFURE, Jorge Ignacio. Evaluation of aerenchyma radical area in sugar cane (saccharum spp.) as feature of tolerance to hypoxia. Acta Agron. [online]. 2013, vol.62, n.3, pp.223-231. ISSN 0120-2812.

The research was developed at the experiment station San Antonio (EESA) of Cenicaña located in the village of San Antonio de los Caballeros (Florida, Cauca Valley). Two experiments were conducted one on semi-dry conditions and another on wet conditions, each one with a design of a randomized complete block with three replications. The aerenchyma observed in the fibrous roots of 13 varieties of sugarcane was evaluated (Saccharum spp) by 4, 6 and 8 months after planting. Agronomic variables as height, diameter, population, stalk weight of total plot, sucrose (% cane) and yield of sucrose per plot were evaluated at harvesting time. It was found that there was a differential response between environments because of the lack of oxygen (hypoxia) in soil. On wet conditions, the aerenchyma occupied 55% of the total area in the root tissues although did not show statistical differences between varieties, whereas the opposite occurred on semi-dry conditions where only occupied 33%. The aerenchyma was not associated with any agronomic traits evaluated. The variety CC 01-1884 had the best agronomic performance in the evaluations.

Keywords : Drought stress; fibrous roots; flooding stress; soil waterlogging; sugarcane.

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