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杉木种子园结实量近期预测方法的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1990年03期
Page:
1-5
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
STUDIES ON SHORT-TERM FORECASTING METHODS OF SEED CROPS OF CHINESE FIR (CUNNINGHAMIA LANCEO-LATA (LAMB.) HOOK) IN SHANDOU SEED ORCHARD
Article ID:
1000-2006(1990)03-0001-05
Author(s):
Chen Yousheng Fang Shengzuo
Nanjing Forestry University
Keywords:
Chinese fir seed orchard Cone crop Seed crop Prediction model Cone Sample trees
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1990.03.001
Document Code:
A
Abstract:
An investigation in Shandou seed orchard in 1988 showed that both the numbers of cones counted from visible crown and from sample trees could be used to forecast the cone crop of Chinese fir three months ahead of collection, which satisfied the rcquirmcnt of short-term prediction. Counting cone numbers from visible crown gave more accurate prediction with less working load than that from sample trees. Along with cone crop prediction, the numbers of filled seeds exposed by slicing cones longitudinally revealed potential seed crop.

References

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Last Update: 1900-01-01