INFLUENCIA DE LA SALINIDAD SOBRE LA GERMINACIÓN DE LA ALFALFA CV. GILBOA AFRICANA

Abstract

Influence of soil salinity upon germination of M. sativa cv. Gilboa Africana was studied under light and temperature controlled conditions. Four replications (100 seed/dish) were used in Petry dishes with double filter paper. Ten concentrations (distillated water) from 0 to 0,9% of CINa were the treatments. Daily counts were made for 8 days. Germination decreased from 50,5 to 23,3% which represented 3% average per each increment in 0,1% of CINa. Significative differences (P<0,01) in respect to the control were recorded from the level 0,3% of CINa in germination and from the level 0,2% in germinative energy. The correlation coefficient among germinative values of distillated water and the rest treatments decreased with the increment of salt concentration. Regression equations among germination and daily salinity levels were obtained. The greater adjustment equation for r=-0,98*** was found during the third day. It was concluded that Gilboa Africana tolerates salinity during germinative stages.