[Estimation of the growth amount of pear tree]. [Korean]
2002
Cha Hyang San | Kim Gwang Bok [Inst. of Pomology Sukchon Dist., Pyongan South Province]
The length of shoot was 56.4-60.3 percent of total length until the end of June and double length was 68.2-86.3 percent until the early of August, the weight of a fruit was increased to 52.9-91.8. The weight increasement of a fruit sharply began from August, a month later than the width growing. The estimation formulas for shoot lengthening and width growing were made as a power function type, weight increasement of a fruit as a exponential function type. As a result of estimation formula for width growing and weight of a fruit, the period of picking fruits and weight of a fruit, fruit output by number of fruits per tree, could be estimated.
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