| In the last autumn shoot mature period, the index of shoot length and diameter, the number ofcompound leaf, leaf length and width, internode length, leaf dry weight and fresh weight, leaf colour were investigatedin this paper. The results showed that the last autumn shoot length and diameter, the number of compound leaf, leafwidth of weak tree vigour was significantly lower than those of plant with strong tree vigour, which indicated thatthese index had very close relation tree vigour. All index were analyzed by SPSS 19.0 software and the tree vigourprediction model was constructed, Y (theoretical tree vigour)=-0.148-0.106X (the value of C)+0.755X (the value ofshoot diameter). The model was tested, accuracy rate reached 69.9%.In the last autumn shoot mature period, the index of shoot length and diameter, the number ofcompound leaf, leaf length and width, internode length, leaf dry weight and fresh weight, leaf colour were investigatedin this paper. The results showed that the last autumn shoot length and diameter, the number of compound leaf, leafwidth of weak tree vigour was significantly lower than those of plant with strong tree vigour, which indicated thatthese index had very close relation tree vigour. All index were analyzed by SPSS 19.0 software and the tree vigourprediction model was constructed, Y (theoretical tree vigour)=-0.148-0.106X (the value of C)+0.755X (the value ofshoot diameter). The model was tested, accuracy rate reached 69.9%. |
