A Method to Select Plus Tree for Flower Purpose in Forestry

Main Article Content

Phung Dinh Trung
Tran Duc Manh
Nguyen Toan Thang
Dang Van Thuyet
Dao Trung Duc
Mai Thi Linh
Nguyen Van Tuan
Nguyen Thi Thu Phuong
Ninh Viet Khuong
Tran Hoang Quy
Tran Cao Nguyen
Dang Thi Hai Ha
Vu Tien Lam
Nguyen Huu Thinh
Hoang Thanh Son
Trinh Ngoc Bon
Ho Trung Luong
Ly Thi Thanh Huyen
Hoang Van Thanh
Vu Van Thuan
Tran Van Do

Abstract

Plus tree selection is the first step to improve production and quality in forestry. An individual-based method is widely used to select plus trees for timber production, timber form, freedom from diseases and insects. In this study, a method to select plus trees for flower production is described and named as a crown-area-based method. Both individual-based and crown-area-based methods were used to select plus trees for Camellia impressinervis, a golden camellia; its yellow flowers have been used to treat sore throat and diarrhea, and to prevent cancers in China and Vietnam. Flower production of 21 concerned individuals was compared to the population mean and it was generated as a percentage. The population mean of the individual-based method is the mean of production of 21 trees as mean production/tree. While population mean of the crown-area-based method is mean production/m2 crown area (first production/m2 crown area for each tree was generated, then mean for population). The results indicated that both methods show seven individual trees with flower production >100% population mean. However, individual trees are different. Only five of 7 trees are the same in both methods. The tree rankings by flower production percentage in both methods are totally different. The highest ranking by individual-based method (310% mean) is 4th ranking by crown-area-based method (181% mean). While the highest ranking by crown-area-based method (270% mean) is third ranking by individual-based method (260% mean). It is concluded that crown-area-based method is better in selecting plus trees for flower purpose, as it considers the crown area which is known as a productive part of a tree to form flowers.

Keywords:
Crown-area-based method, flower production, golden camellia, individual-based method, population mean.

Article Details

How to Cite
Trung, P., Manh, T. D., Thang, N., Thuyet, D., Duc, D., Linh, M., Tuan, N., Phuong, N. T., Khuong, N., Quy, T., Nguyen, T. C., Ha, D. T., Lam, V., Thinh, N., Son, H., Bon, T., Luong, H., Huyen, L. T., Thanh, H., Thuan, V., & Do, T. (2019). A Method to Select Plus Tree for Flower Purpose in Forestry. Asian Journal of Research in Crop Science, 4(1), 1-8. https://doi.org/10.9734/ajrcs/2019/v4i130063
Section
Original Research Article

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