A Master’s thesis at the College of Agriculture, University of Kirkuk, discussed “Improving the Growth and Yield of Two Cowpea Varieties Using Nano Boron and Zinc Fertilizers” submitted by the student Salsabeel Mohammed Ibrahim.
The study aimed to determine the extent of variation in the response of local and imported cowpea varieties to nano boron and zinc fertilizers, and to identify the most suitable variety under the supporting environmental conditions. It also sought to examine the effect of nano boron and zinc fertilization on improving growth, flowering, fertilization, yield, and quality traits of the two cowpea varieties. In addition, the study aimed to identify the best combination of nano boron and zinc fertilizers that could reduce flower drop, increase fertilization efficiency, and consequently improve seed yield, in order to select the most suitable cowpea variety for the study area under the optimal fertilizer levels.
The study results showed significant differences between the local and imported cowpea varieties in most vegetative growth traits, yield and its components, and quality characteristics. The triple interaction between the two varieties and the levels of nano boron and zinc fertilizers also had a significant effect on all studied traits, confirming that the plant’s final response is the result of a complex interaction between genetic factors and environmental factors, including micronutrients.
