Scientia Silvae Sinicae ›› 1998, Vol. 34 ›› Issue (zk): 73-77.
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Yushan Zheng,Wei Hong,Erfa Qiu
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Published:
Abstract:
In this paper, the law that the amount of bamboo shoot increases with the increasing of time has been studied by applying the Logistic model of the shooting amount.The results indicate that about 13% of the total shoot can be produced at the earlier stage of shoot emergence(the first 10 days), 80% at the middle stage of shoot emergence (10~ 20 days), and 7% at later stage (after 20 days). The studies on description of the degraded shoot characteristics and its law shows that the amount of the degraded shoot is lower at the earlier stage and later stage of shoot emergence, but the percentage of shoot degradation is higher, whereas the amount of the degraded shoot is higher at the middle stage of shoot emergence, but the percentage of shoot degradation is lower, which can be used to guide bamboo shoot production, and provide a basis for the quantity of digging and taking bamboo shoots emergence.
Key words: Phyllostachys heterocycla cv. pubescens, Logistic model, shoot emergence, Degraded shoot
Yushan Zheng,Wei Hong,Erfa Qiu. STUDY ON THE REGULATION OF SHOOT EMERGENCE AND DEGRADATION OF PHYLLOSTACHYS HETEROCYCLA CV. PUBESCENS SHOOT[J]. Scientia Silvae Sinicae, 1998, 34(zk): 73-77.
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Table 1
The continued days during bamboo shoots emergence"
Table 2
The continued days on shoot emergence of various management forests"
Table 3
The total shoot yield accumulated in different days and its conversion value for Phyllostachys heterocycla cv.pubescens forest"
Table 4
Comparison of roots state between the degraded shoots and well shoots"
Table 5
The distribution of degraded shoot in various depths"
Table 6
The percentage and the amount of degradaed shoot in the different days of shoot emergence period"
Table 7
The degradation rate of the bamboo shoot in different depths"
