The effect of foliar application manganese on quantitative and qualitative traits of barley (Hordeum vulgare) and the relationships between them

This research was carried out at research farm of agricultural and natural resource station of Zabol, in 2014-2015. Cropping cycle, under alpha lattice design with two replications under two normal conditions and foliar manganese. Foliar Manganese at a concentration of 1 kg/ha was carried out in three stages of planting, stemming and flowering on 148 spring barley cultivars. The results showed that in different growth stages, foliar manganese increased the height, fresh and dry weight of forage, number of tillers per plant, leaf to stem ratio and reduction of seed to forage ratio, compared to normal treatment. Manganese solution increased Crude Protein, Crude Fiber, Acid detergent fiber, Natural detergent fiber and acid detergent lignin traits, as well as reduced qualitative characteristics of dry mater digestibility, Water soluble carbohydrate and ash compared with normal treatment. Simple correlation coefficients between traits showed that there is an inverse relationship between quantity and forage quality. As a result, the factors that increase the amount of forage reduce its quality and vice versa. In the following, using factor analysis, 14 variables were defined in five factors for normal conditions and four factors for manganese soluble conditions which justify 80.81% and 83.85% of the variation of the data, respectively. They made the results of this study indicated the total digestibility of dry mater digestibility, Water soluble carbohydrate, acid detergent fiber and natural detergent fiber from the oral parameters of forage, which can influence on forage quality and animal feed.