Response of Three Garlic Allium Sativum L. Genotypes to Potassium Fertilization Levels

Abstract

A field experiment was carried out at the Agricultural Research Station of the College of Agriculture, the University of Anbar for the season (2021-2022) in order to study the effect of different levels of potassium fertilization on the growth, yield and quality of bulbs for three garlic genotypes. The experiment included the use of four levels of potassium fertilization (0, 150, 200, 250) kg/ha, respectively, it was added to three garlic genotypes (local, Chinese, and Egyptian). The study was carried out as a factorial experiment in a randomized complete block design (R.C.B.D) with three replicates. The results showed that the local cultivar was immunologically superior in vegetative growth characteristics (plant height, leaf area) and reached 100.44 cm and 7.08 cm2 compared to the lowest plant height achieved by plants of the Egyptian cultivar, which amounted to 55.17 cm and the lowest leaf area achieved by the Chinese cultivar plant, which reached 6.96 dm2. The local cultivar and the level of fertilization 250 kg / ha also excelled in the yield trait, as it achieved the highest weight of heads, the highest number of cloves and the highest yield per unit area 91.93 g per clove, 36.24 clove per plant, 36.24 ton / ha compared to the lowest amount achieved by plants of the Chinese cultivar without fertilizing.