Study of Salicylic Acid and Glycine Effect on Some Agronomic Traits of Alfalfa under Wet Stress Conditions

Alfalfa is one of the most important forage plants for livestock. Drought most important factor limiting plant growth in the world and is the most common environmental stress. The external application of extenuating stress can cause immune responses, particularly by plants. In order to investigate the application of salicylic acid and glycine on alfalfa seed production under water deficit conditions, tests for split-plot in a randomized complete block design with three replications in research farm of Islamic Azad University of Karaj in the crop year 95-1394 was administered. 5/0 and 1 mM salicylic acid and glycine were 10 and 50 mM. The characteristics such as yield with and without pods, pods per plant and seeds per pod. The results showed that, irrigation, seed yield (with and without pods) and number of seeds per pod (respectively 2/1418, 51/936 kg per hectare and 01/9 digits) and irrigation cut off the flowering the yield (with and without pods) and number of seeds per pod (respectively 4/977, 76/807 kg and 36.6 eggs), respectively. Also sprayed with 50 mM glycine with the highest seed yield (with and without pods) and number of seeds per pod (the order number 4/1440 and 93/945 kg per hectare and 09/10) and was superior in the group treated with non-solution spray the lowest seed yield (with and without pods)) and the number of seeds per pod (2/932 and 73/591, respectively, and 34.6 kg ha number) in the weakest group were analyzed.