Morphological response in Morus alba genotypes under saline stress induced with Sodium Chloride (Original)
Keywords:
Sodium Chloride; electrical conductivity; in vitro; mulberry; salinityAbstract
The cultivation of mulberry is of great importance in Cuba for animal feed, however, various factors affect the production of biomass in this crop, and not all varieties respond in the same way to salinity stress conditions. Therefore, this work aimed to evaluate the morphological response of four mulberry genotypes subjected to salt stress conditions induced with sodium chloride. The percentage of cuttings with shoots and/or roots was evaluated; number of shoots per cuttings; and the length of the root, in propagules from the field of the varieties Acorazonada, Criolla, Yu-62 and Doña Betty placed in jars with water with different values of electrical conductivity 0.5; 1.0; 2.0; 4.0 and 6.0 dS.m-1, for 30 days of culture. The results showed that the increase in Sodium Chloride concentrations affected the morphological response of the plants in the four genotypes evaluated; where the Doña Betty variety showed the greatest susceptibility to this factor during cutting sprouting. In conclusion, salt stress affected the morphological response of the genotypes studied, where the Acorazonada and Criolla varieties had the highest tolerance up to 2.0 dS.m-1 of sodium chloride.
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