The fresh pollen of Cattleya hybrids‘Green World' was employed as experimental material to carry on the studies on culture solution for the determination of pollen viability.Comparisons were made among the effects of different concentration of sucrose,boron,calcium,magnesium and potassium on the germination of Cattleya pollen through simple factorial experiment. An orthogonal design was also used on that basis to compare the effects of sucrose,boron and calcium on the germination of Cattleya pollen.Results ...