Effects of irrigation with salty water on the yield and agronomy characteristics of two wheat bread genotypes

In order to investigate the effects of water saltiness of irrigation on the features of the agronomy in two lines (Maya&Tou2) of wheat, an examination was performed in Faculty of The University of Agriculture Science and Natural Resources of Gorgan in 1382. This examination was done by applying irrigation water: 0.67 (witness), 2 and 4 dS/m in three periods (booting, milky and mild doughy). The examination was performed by factorial in form of Complete Randomized Blocks three times. Results indicated that, plant height, 1000 grain weight, total number of head, harvest index and grain yield in two lines of wheat weren’t significant in comparison with witness. In milky phase, the whole dry matter in Tou2 line decreased after using saline water. Increase in the salinity in the third level (4 dS/m), increased the number of spike let per spike in line Maya. Salinity increased the number of spike let per spike of Tou2 line in second level of salinity. The number of spike let per spike, the number of grain per spike, total dry matter, and grain yield and harvest index were much more in Maya line, but total number of head and 1000 grain weight increased. The grain yield in Maya line was more than 30/51 % that in Tou2 line.