Abstract:

To identify the key factors and the main effect in the seed yield components of C. deserticola, species, the statistical analysis methods including correlation, regression and path analysis were applied to analyze the relationship between the morphology traits of the inflorescence and seed yield of single plant. 7 factors including number of effective capsules (X1)、total number of capsules (X2)、 number of seeds per fruit (X3)、inflorescence length (X4)、big bract length (X5)、setting percentage (X6) and number of flowers (X7) that interrelated significantly with the seed yield (Y) were screened. Path analysis revealed that the main effect factors were number of effective capsules (X1), but the regression equation was Y=－8.721 + 0.0919 X2 + 0.00954 X3. The results showed that the seed yield of single plant of C. deserticola could be estimated by the total capsule and seed number per capsule. Topping pollinating more pollen and selective breeding could be applied for improving seed yield in the planting process. It would provide a scientific basis for breeding objectives and cultural practices of C. deserticola.