Biotechnology plays an increasingly important role in all aspects of agricultural production, especially in the forestry sector, including large timber forestation.
Leaders of the Ministry of Agriculture and Rural Development visited the forestry seed models applying scientific and technological advances of the Vietnam Forest Science Institute. Photo: Iftib. Achievements in the field of forest seed The Forest Seed and Biotechnology Research Institute under the Vietnam Forest Science Institute is a leading research unit in the forestry sector on the application of biotechnology in forest seed improvement. Researches on biotechnology of the Institute are oriented in three main directions: Research to complete the propagation procedures for newly selected varieties to serve the transfer of propagation techniques for the same original breeds. seed research and production units; Using molecular indicators in research on selecting high yield, high quality and breeding new varieties using mutation and genetic engineering, and has achieved many outstanding achievements. The Institute has successfully researched and built propagation procedures for nearly 30 hybrid acacia, acacia, cajeput, eucalyptus and eucalyptus hybrids and transferred them to many production facilities. Several propagation processes on an industrial scale have been completed by the Institute through the implementation of pilot production projects and projects, of which 2 propagation processes have been recognized as technical progress. . The Institute has transferred the process of industrial-scale micro-propagation to more than 30 production facilities across the country and these facilities have mastered the technology, some units have been able to produce 10 million seedlings / year, partially meeting the need of planting clones. With clonal propagation, the original seed used as a material source for multiplication through many times will have the phenomenon of aging. The seed degradation will reduce the propagation efficiency and degradation of forest quality. As a supplier of original breeds for production, the Institute has conducted research to build and complete the process of restoring and rejuvenating the original seed source, ensuring the quality of the original seed for production. Therefore, after 20 years, the hybrid acacia hybrids selected for creation and recognition in the previous period are still effective in production, with high productivity and quality and are trusted by the production units. The forestry seed sector has achieved a great deal of success through the application of biotechnology advances. Photo: Iftib. Application of molecular indicators and mutagenic polyploids The application of molecular indicators in breeding has been promoted by the Institute to shorten the breeding time as well as improve the efficiency of breeding programs. Through applied research, the Institute has selected 21 SSR indicators related to fast growth in hybrid acacia, 20 SSR indicators related to growth traits in hybrid eucalyptus. With the use of these indicators, 7 lines of acacia hybrid (BB055, BV350, BV376, BV434, BV523, BV584 and BV586) achieved yield from 26 to 35m3 / ha / year, 10 lines of hybrid eucalyptus grow rapidly (UC16 , UC51, CU113, CU123, UC52, CU182, UE72, UC55, CU98, CU82) yield from 30.7 to 45m3 / ha / year were selected. In which, 7 lines of hybrid acacia BB055, BV350, BV376, BV434, BV523, BV584 and BV584 and 2 lines of hybrid eucalyptus CU98 and CU82 have been recognized as a new forest plant variety allowing for production. In recent years, transgenic studies increase the length of wood fibers ( EcHb1 ) for uro eucalyptus and hybrid eucalyptus has also been implemented by the Institute. Scientific staff of the Institute developed the vector structure GWB2 / 35S / EcHB1 / NOS carrying the target gene. EcHB1 . Thereby building the gene transfer process EcHB1 increased wood fiber length with transgenic efficiency of 1.06%, from which 19 lines of UU hybrid eucalyptus (of which 4 lines were identified with wood fiber length exceeded 14% or more compared to the control). ) and 40 transgenic UP hybrid eucalyptus lines carrying the target gene EcHB1 . These lines have normal morphology and grow equal or faster than the control plants. These transgenic varieties are currently being continuously tested before being put into production practice. In addition to the research on breeding by molecular indicator and gene transfer, the research on polyploid breeding by the method of causing mutation in combination with crossbreeding has been deployed by the Institute for Acacia species. The Institute has successfully created varieties of Acacia and tetraploid acacia from improved seed sources and crossbreed with diploid varieties to create triploid hybrid acacia. Biotechnology plays an increasingly important role in agriculture in general and forestry in particular. Photo: Vafs. Dr. Nguyen Duc Kien, Director of the Forest Research and Biotechnology Institute said. In order to achieve these successes, apart from the collective efforts of the Forest Research Institute and Forest Biotechnology, it is impossible not to mention the help of ministries, branches, especially the Ministry of Agriculture and Rural Development as well as other scientists at home and abroad. However, these are only initial results, so they do not fully reflect the potential of biotechnology in research and selection of forest plants. In the coming time, in addition to the implementation of traditional breeding methods based on natural variables, the research and application of biotechnology including the use of molecular indicators and techniques. Genetic transformation and gene editing will be one of the breakthrough research directions and be focused on developing in order to improve the role and contribution rate of biotechnology in forest plant breeding programs. Thanks to a strategic and methodical implementation of the seed improvement program, the research of polyploid breeding has achieved certain results, in which the Institute for Forest Breeding and Biotechnology has achieved certain results. selected, created and recognized 4 triploid hybrid acacia lines X101, X102, X201 and X205 as new forest plant varieties according to the Decision No. 1458 / QD-BNN-TCLN, dated 20/4/2020 of the Ministry of Agriculture and Rural Development with Yields range from yield from 26 to 35 m3 / ha / year. The wood properties of the triploid acacia varieties at the age of 4 years are equivalent to that of the diploid hybrid acacia at the age of 5-7, meeting the basic requirements of raw wood for the production of paper, MDF, board peeled boards.
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