Breeding Sterculia foetida L. for gum purposes in dry land of South Central Vietnam

Abstract

Sterculia foetida L. is a widely distributed species, with many varieties, capable of producing latex products. The objective of this study was to select Sterculia foetida L. with a yield of at least 10% compared with that of today in the dry South Central. To achieve this goal, the research was done by selecting the dominant trees and testing the posteriority of the selected trees. The time for posterity testing is 4 years. The results indicate that: (i) 50 mothers were selected from 11 provenances of 4 ecological zones in the South, of which the mother plants of Ninh Thuan and Binh Thuan were superior to the norm pus. (ii) Identify the top 5 provenances, which are superior in terms of pungency and size criteria: Gia Lai, Kien Giang, Dong Nai, Ninh Thuan and Binh Thuan. (iii) Identify 18 families that excel in size; 8 families have their own size and only 3 families in size and latex. The last selected families are NT18, BT04 and BT01.