Seed germination Seed Effect of Planting Date on Grain Yield and Its Components and Reaction to Important Maize Viruses in Fars Province in Some Exotic and Iranian Maize Hybrids Determination of Phenological Response of Spring Canola "Brassica napus"L. " Genotypes to Sowing Date, Temperature and Photoperiod Study of Allelopathic Interaction of Wheat Wheat seed treatment and its effect on seed vigor indices from bioenvironmental aspect Effect of Bio-fertilizer Phosphate on Grain Yield and Its Components of Maize (Zea mays L.) cv. KSC704 under Water Deficit Stress Conditions Effects of Different Plant Growth Promoting Rhizobacteria (PGPR) Application Methods on Forage Production in Sorghum (Sorghum bicolor var. Speed feed) Variation in Developmental Stages and its Relationships with Yield and Yield Components of Bread Wheat Cultivars Under Field Conditions: II- Yield and Its Components Effect of Tillage System and Rice Residue Management on Grain Yield and Its Components of Rapeseed (Brassica napus L.) as Second Crop in Paddy Fields