Our results support that polyphenoloxidase and catalase activities can be used for biocontrol efficacy to control bean bacterial common blight.The best results were obtained due to using glutamic acid, cyanocobalamin and salycilic acid, inascending order.Using all materials together gave the best findings.The stimulating effects of these antioxidants might be attributed to their positive action on enhancing, cell division, the biosynthesis of organic foods, DNA, RNA, enzymes, vitamins and hormones as well as inhibiting the formation of reactive oxygen species that cause a great damage on the permeability of cell walls and the death of plants. Their positive action on controlling various disorders and enhancing the tolerance of fruit crops to biotic and abiotic stresses did not leglect in this respect.Each treatment was replicated three times, one palm per each.All materials were sprayed three times before hand pollination, just after fruit setting and at one month later.During both seasons, the following measurements were recorded.Number of strands spathe and number and fruits strand.The promotion was significantly associated with using salicylic acid, vitamin B and glutamic acid, in descending order.The effect of these antioxidants on enhancing cell division, the biosynthesis of organic foods, pigments and hormones could results in enhancing the leaf area, plant pigments and all nutrients.Number of strands per spathe and number of flowers and fruits per strand.Using salicylic acid was significantly superior than using both vitamin B and glutamic acid.Vitamin B occupied the second position in this respect.The glutamic acid application ranked the last position in this connection.The promotion on the yield and bunch weight was significantly related to using glutamic acid, vitamin B and salicylic acid, in ascending order.Combined applications were significantly favourable than using each material alone in this respect.The studied treatments had no significant effect on the percentage of sucrose in the fruits was salicylic acid followed by vitamin B and glutamic acid ranked the last position in this respect.Combined applications was significantly, preferable than using each material alone.The best results were obtained on the palms that received all materials together.The analysis of variance showed significanteffect of water deficient stress on root yield. Also, effect of methanol foliar application on RY, SY, HI, LAI and chlorophyll content was significant methanol foliar application compare with control produced, and more RY, SY, HI and chlorophyll content, respectively.Besides, the results also proved that FC irrigation had the highest and mild stress had the lowest effect on RY, SY, HI, LAI and chlorophyll content.When plants do not receive sufficient water they are subjected to a stress called water deficit.Water deficit is a major abiotic stress that adversely affects crop growth and yield. It decreases plant growth and reproduction by affecting physiological and biochemical processes. Plants use different mechanisms to cope with the drought stress.The first step to achieving high yield per unit area is to increase production of dry matter, because almost of plant dry weight is resulted from CO assimilation during photosynthesis.In regard to this fact that leaf is the most <a href="http://www.targetmol.com/compound/Lansoprazole">Targetmol's
Lansoprazole</a> important metabolic organ, the foliar application is considered as the best way to affect growth, development and metabolism of plants.