Effect of Levels Water Salinity and Inoculation With Azospirillum and Bacillus on Some Growth and Yield Characters of Wheat (Triticum aestivum L.)

A field experiment has been conducted at the College of Agriculture - University of Al-Muthanna (Al Bandar station 2 km from the center of Al-Muthanna Governorate), during seasons 2019-2020 and 2020-2021, to study the effect of four salinity levels of irrigation water (S1, S2, S3, S4) and four treatments. of Bio Fertilization (A, B, AB, C), and knowing its effect on some characteristics of growth and yield of wheat, result showed that levels of water salinity was significant effect on growth characters, the level S1 was superior in high plant, No. tellers, leaf flag area was reached 76.03 and 82.08 cm, 358.5 and 357.2 tellers m 2 , 40.08 cm 2 for both season on sequences. The treat of salinity S3 was superior in seed of spikes and total yields and give high means 32 and 34.42 seed spike −1 , 3.850 and 4.13 ton h −1 in both season. The inoculation treatment was high significant in growth characters and the treat A was superior in plant high reached 77.78 and 77.76 cm, in tellers treat A was superior in No. tellers reached 352.4 tellers m 2 , the treatment AB was superior in flag leaf area and reached 40.17 cm 2 . The result showed superior treat AB in seeds spikes −1 reached 32.58 and 34.67 seeds spike −1 for both season, in 1000 seed weight was treat B was superior and give 33.83 and 35.08 gm in both season, the treat AB was superior in total yield its reached 3.52 and 3.82 ton h −1 .