ISHS Acta Horticulturae 620: XXVI International Horticultural Congress: Asian Plants with Unique Horticultural Potential: Genetic Resources, Cultural Practices, and Utilization
KOREAN PINE AS A NUT PRODUCTION SPECIES IN CHINA - PRESENT SITUATION AND FUTURE DEVELOPMENT |
| Author: | H.L. Shen |
| Keywords: | Pinus koraiensis, seed nourishment, seed uses, economic value, seed forest management |
| Abstract:
Korean pine (Pinus koraiensis) is well known as a valuable timber tree. Almost all of the activities (scientific research, forest establishment and management, seed forests or seed orchard establishment, tree growth behavior controlling, etc) related to Korean pine, were on timber production in the past in China. Korean pine seed contains 70.3% oil, 14.8% protein, abundant vitamin A and E, and some fatty acids such as oleic acid, linoleic acid, linolenic acid that are necessary to our body. It is a very good food nut production species, but the nut or seed of this plant was just regarded as a favor of nature and usually picked from the natural forest. Along with the development of economy and improvement in the standard of living in China, the importance of increasing nut production plantations was understood gradually. Many researches were conducted on reforming current timber production plantation into timber and nut production plantation, density control of timber and nut production plantation, fruiting promotion by GA3 and others. This has promoted the nut production of Korean pine in recent years. Evidently more detailed research is needed for exploiting the nut production potential of Korean pine in China. More comprehensive studies should be conducted on tree form control, nutrient control, density control, fruiting control and genetics control for both timber and seed production. In addition, special plantation like fruit garden for nut production should be established. For this purpose, two obstacles should be overcome. One is how to increase the proportion of female strobile and the other is how to control the apical dominance of trees and maintain fruitful lower and wide canopy. | |
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