Resumo

IGLESIA, Aleika et al. NEW SCALE FOR THE EVALUATION OF THE VARIETAL RESISTANCE AGAINST RATOON STUNTING DISEASE IN SUGARCANE. Rev. Protección Veg. [online]. 2007, vol.22, n.1, pp. 34-40. ISSN 2224-4697.

The search of effective methods for the evaluation of the varietal resistance to Ratoon Stunting Disease (RSD) in sugarcane is of major interest nowadays. Thus, there is a need of validated procedures of diagnostic and evaluation of the variety behavior. The relationship existent between the percentage of functional bundles and the varietal reaction was determined by the staining transpiration methods (STM). A statically proved evaluation scale of the variety behavior with 96.4 percent of good classification was determined. It is a practical approach for this matter that can be helpful for the National Genetic Improvement Program.

Palavras-chave : ratoon stunting disease; resistance; STM; evaluation scale.