Dendrobium is a major orchid species growing in Vietnam farms. Two viruses CyMV (Cymbidium mosaic virus) and ORSV (Ondotoglossum rinspot virus) have become severe damages to orchids. However, the infection to Dendrobium by CyMV in Ho Chi Minh City offered 67.5% more severely than ORSV. Variety Sonia’ s PLDs were successfully transformed via Agrobacterium tumefaciens – mediated with strain C58 (EHẠ and LBA4404).

Shrimp value chain in Vietnam functions with a large number of farmers. They stay in the weakest position in the chain due to their small individual scale with an average land of about 0.5 ha/farm, and low skills (Ho, 2012). As a leader and holding the strongest power in the shrimp value chain, the processors determine shrimp prices and set up requirements of shrimp quality and size in the market though quality control has not been completely implemented due to the limitations of financial capital,
 

Value chain governance in the shrimp sector refers to the relationships among the primary and secondary actors namely input suppliers, farmers, collectors, processing plants and governmental institutions. Traditional governance type of the shrimp value chain in the early state (before the year 2004) showed the different levels of coordination of farmers with collectors, among collectors, and collectors with processing plants.
 

Straw mushroom sector has been strongly growing in Vietnam since last decade with more than 64,500 tons/year of production. The development of the sector helps improving both farm household’s income and the environment by reducing pollution from rice straw burning at the end of the rice cultivation season.

Nanomaterials are materials at nanoscale as between 0.1 and 100 nanometer(1nm = 10^-9 m), which have large surface area, orientation, and physical properties, appropriate to be used in medicinal sciences, physics and chemistry. The use of gold nanoparticles in biological studies was first introduced by Faulk and Taylor (1971).

For establishing the favourable media for growth of Phaeoacremoniumparasiticum, the fungus was inoculated in five different media (Potato Dextrose Broth (PDB), Host Extract (50%) + PDB (50%) (HE + PDB), and the solid media viz., Rice Bran (RB), Maize Meal (MM) and Wheat Bran (WB)) at pH of 6.5 and incubated at a temperature of 30˚C ± 1˚C. The solid media wereadded with water at the rate of 70 ml/100g of solid substrate.

Panax  vietnamensis  Ha  et  Grushv.) is a specific and precious Panax in Vietnam with high economic pharmaceutical value.Embryo numbers by callus treatment, which derived from tubers exhibited higher volume than from leaves. The SH medium was observed to be more suitable to the formation of calli in which embrygenesis taking place potentially. Otherwise, the MS medium became better to be sensitive in case of embryogenesis from Ngoc Linh panax leaf calli.

Somatic embryogenesis from thin cell layer culture has been successfully conducted from jatropha leaves (Jatropha curcas L.). The MS medium, which was added by 0.5 mg/L of 2,4 D was obtained the best effectiveness to induce calli. The combination between 2,4 D and KIN was noticed to help somatic embryos create calli of jatropha.

The percentage of regenerants by Paphiopedium landraces viz. Van Hai, Lan Hai Hong and Lan Tam Dao obtained 22.40, 24.85 and 17.15 %, respectively under the SH medium plus 1.0 mg/L of TDZ, 0.3 mg/L of NAA, 9 g/L of agar and 30 g/L of sucrose at pH of 5.8

Rice (Oryza sativa L.) is the most important food crop in the world and feeds over half of the global population. However, rice production has been decreased due to climate change, especially salinity. Understanding the genetic bases of the diverse morphological and physiological traits associated with rice adaptation to salt affected environments provides the basis for improving yield, quality, and sustainability of rice productivity in saline areas.