Effect of antioxidant (tocopherol-α and acetylsalicylic acid)‎ and addition method on the growth and components of the green yield for broad bean plants cultivated in the south of iraq

الملخص EN

The experiment was conducted during the winter season 2019-2020 at the Agricultural Research Station - College of Agriculture, University of Basra, with the aim of knowing the effect of treatment α Tocopherol and Acetylsalicylic acid and the method of addition on growth and yield and its components of green Broad bean (Vicia faba L.

)cultivar "Luz de otono".

The factorial experiment included fifteen treatment consisting of a combination of five treatments, namely α-Tocopherol at two concentrations of 50 and 100 mg.

L-1 and Acetylsalicylic acid at two concentrations of 50 and 100 mg.

L-1 in addition to the control treatment (distilled water) and three methods of addition: 1- Soaking the seeds 2- Soaking Seed + spraying plants 3-Spraying plants.

Split Plot Design was used with three replicates, and the results showed that the treatment with α-Tocopherol and Acetylsalicylic acid, It led to a significant increase in the vegetative growth indicators, which are plant height, number of branches, leaf area, dry weight of the vegetative total, yield and its components, which is the length of the pod, number of pods per plant, pod weight, the productivity of pods, weight of 100 seeds, the yield of fresh seeds and the total soluble solids, vitamin C, dry matter percentage, and protein, compared to plants that were sprayed with distilled water.

The method (seed soaking + spraying plants) gave the highest values in all studied indicators of vegetative growth compared to the two methods of soaking seeds and spraying plants.

Soaking the seeds + spraying the plants) with Acetylsalicylic acid at a concentration of 100 mg.L -1 gave the highest pods yield, which reached 44.532 tons .ha-1 .The method (seed soaking + spraying plants) with Acetylsalicylic acid a concentration of 50 mg.L-1 gave the highest yield of fresh seeds reached 21,812 tons.ha-1 compared to the lowest productivity of pods and fresh seeds of (21.348,8.768 tons.ha-1 ), respectively when spraying treatment with distilled water and soaking with distilled water.