Effect of Concentration and Period of Seed Soaking with Atonik on Some Quantitative Traits of Mung Bean

Abstract

A field experiment was carried out during spring season of 2016 and 2017 in the field of the Department of Field Crops - College of Agriculture - University of Anbar (Alternative Site – Abu Ghraib), to study the effect of concentration and Period of seed soaking with the Atonik growth regulator on the some quantitative traits of the mung bean (Al-Khadhrawi variety). Split plots arrangement according to randomized complete block design (RCBD) at three replications was used. The concentrations of soaking with Atonik (0, 2.5, 5- and 7.5-ml L-1) were the main plots, while the soaking period (0, 2, 4 and 6 hours) occupied the sub plots. The results showed that the seeds soaking with Atonik growth regulator at a 7.5 ml L-1 recorded the highest plant height (54.05 and 47.10 cm), number of pods (15.83 and 11.58 pods plant-1) and number of seeds (10.81 and 8.48 seeds pod-1) for both seasons respectively, and number of branches (14.33 branch plant-1) in the first season only. The soaking period for 6 hours was significantly superior and gave the highest plant height (54.23 and 46.59 cm), number of branches (14.00 and 12.80 plant branch- 1), number of pods (16.75 and 14.08 pod plant-1) and number of seeds (10.80 and 8.80 seed pod-1) for both seasons respectively. The interaction between concentrations of soaking at 7.5 ml L-1 and soaking period for 6 hours had highest values for more the studied traits and both seasons. We can bw conclude that the quantitative characteristics of the mung It can be improved by using seed soaking treatment before planting with Atonik growth regulator.