Interspecific Differences in Tolerance to Soil Compaction, Drought and Waterlogging Stresses among Maize and Triticale Genotypes

摘要: Stress susceptibility indexes (SSI) of eight maize and triticale genotypes for their ability to cope with soil compaction (SC) combined drought (D) or waterlogging (W) were estimated through the determination changes in dry matter shoot (S), root (R) whole plant (S+R) grown at three levels (1.1, 1.3 1.6 g cm−3) exposed D W stress 7 14 days. The SSI values showed variation between within genotypes, it was possible divide into groups sensitive resistant ones. correlation coefficients (r) (SCSI) (DSI) (WSI) DSI WSI statistically significant. This indicates that stresses also W. Seedlings under S R ratio (S/R). Sensitive had higher S/R than Decrease depends on duration stresses, may be considered an adaptation mechanism stress. After 7 days recovery treatments, we observed only a partial return growth traits level control plants.