Abstract:

The photosynthetic characteristics of ear on corn play an important role in yield formation of corn. Application of grey relational analysis method, the correlation of yield characteristics and photosynthetic characteristics of ear on corn were analyzed. The results showed that the magnitude on effects of vary photosynthetic characters on weight per Ear in turn was ear stem length, area, length, PN, specific leaf weight, wide, concentration of chlorophyll, ear position, plant height, value of orientation, ear stem length and thickness, etc. The top three magnitudes on synthetically effects of photosynthetic characteristics on yield was ear stem length, length, specific leaf weight.