Effect of Activation with Different Levels of Potassium Chloride on Germination Stage and Subsequent Stages in Bread Wheat (Triticum Astiveum)

الملخص

This study was conducted in the Seed Laboratory of the Department of Crop Sciences - Faculty of Agriculture - University of Tripoli. During the agricultural season 2022-2023 AD, to study the effect of soaking in potassium chloride solution at five concentrations (0-15-20-25-30g/L) on the germination stage and seedling growth in bread wheat varieties (Bohouth 208, Bohouth 212 and Abu Al-Khair) sourced from the Agricultural Research Center Misurata. Completely randomized design (CRD) was used with three replicates of each treatment. The studied traits were (fresh weight, seed vigour, speed of germination, germination (%), the seedling length, plumule length, the radicle length). The results of the statistical analysis showed significant differences between the potassium chloride stimulation treatments and the varieties, as the variety Bohouth 212 gave the highest average germination (%) compared to the two varieties (Abu Al-Khair and Bohouth 208), respectively. Also, the variety Bohouth 212 gave the highest values for speed of germination, outperforming the two varieties (Abu Al-Khair and Bohouth 208). The variety Bohouth 208 outperformed the two varieties (Bohouth 212 and Abu Al-Khair) with the highest average plumule length. The cultivars differed significantly in the radicle length, with cultivar Bohouth 212 recording the highest average the radicle length, followed by the two cultivars (Abu Al-Khair and Bohouth 208), respectively. As for the seedling length, the results showed significant differences, with cultivar Bohouth 212 outperforming the two cultivars (Bohouth 208 and Abu Al-Khair). In addition, cultivar Bohouth 208 outperformed the two cultivars (Bohouth 212 and Abu Al-Khair) in fresh weight. As for seed vigour, cultivar Bohouth 212 was superior to the two cultivars (Bohouth 208 and Abu Al-Khair). The interaction between wheat varieties and the stimulating concentrations of potassium chloride solution was significant in terms of its effect on most of the studied traits. Wheat seeds of the (Bohouth 212) variety soaked in a concentration of 20g/L of potassium chloride solution achieved the highest values for the interaction compared to the concentration of 30g/L which gave the lowest arithmetic averages for the studied traits.