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• Effects of Different Rootstocks on Growth, Yield, Quality and Cadmium Accumulation in Tomato Plants Grown in Cadmium - Contaminated Soil

  Nguyễn Thị Giang, Ngô Thị Dung, Vũ Thị Xuân, Ngô Thanh Sơn, Nguyễn Thu Thùy, Nguyễn Xuân Điệp, Đặng Thị Lệ

  Date Received: 14-03-2026 / Date Accepted: 28-08-2026 / Date Published: 30-09-2026

   Abstract PDF (VIETNAMESE)

  This study evaluated the effects of different rootstocks on the growth, yield, fruit quality, and cadmium (Cd) accumulation of tomato plants grown in Cd-contaminated soil. A pot experiment was conducted in a greenhouse using cherry tomato cultivar ‘Thúy Hồng’ as the scion grafted onto three rootstocks: Vimina 1, Vimina 2, and eggplant EG203 under a Cd contamination level of 8 mg kg-1 soil. The results showed that rootstocks did not significantly affect plant growth or fruit yield, which ranged from 311.8 to 346.6 g/plant, but significantly influenced fruit quality and Cd distribution in the plant. Tomatoes grafted onto eggplant rootstock EG203 showed the highest fruit quality (vitamin C: 22.20 mg/100g, Brix: 7.30%, total sugars: 4.55%) and Cd concentration in fruits was lowest in this treatment (2.64mg kg-1). These results indicate that eggplant rootstock EG203 can reduce Cd accumulation in tomato fruits while maintaining yield and improving fruit quality, contributing to safer tomato production in Cd-contaminated soils.

  DOI: https://doi.org/10.31817/tckhnnvn.2026.24.9.09

• Selecting Strains and Experimental Cultivation of Hymenopellis Radicata(Rooting Shank) on Common Local Source of Substrate in Da Nang City

  Tran Thi Thu Thuy, Vo Tran Khanh Huyen, Vu Thuy Duong, Pham Chau Huynh

  Date Received: 03-10-2023 / Date Accepted: 25-12-2023

   Abstract PDF (VIETNAMESE)

  Rooting shank or black root mushroom, Hymenopellis radicata(Xerula radicata, Oudemansiella radicata),is a wild edible mushroom known for its high nutritional and medicinal value and, thus, significant potential for the food and pharmaceutical industries. The objective of this study was to select Hymenopellis radicatafrom five different sources and compared under controlled growing conditions in Da Nang city, Vietnam. The substrates consisted of 80.0 w% rubber tree sawdust, 10.0 w% rice bran, 9.0 w% cornmeal, and 1.0 w% CaCO3, with 30 bags per experiment, replicated three times. The mushrooms were evaluated for their growth, biological efficiency, and fruiting body quality. Data analysis identified a superior genetic source (designated as M2), which was recommended for cultivation in Da Nang city. Mycelial growth rate on the substrate was 6.26±0,24mm/day, biological efficiency of 12.06±0.38%, total protein content in the fruiting body of 31.2 w% dry weight, lipid content of <1.0 w% dry weight, and absence of E.coliand Salmonella. Notably, Hymenopellis radicataexhibited a high cadmium uptake capacity (~3.7 mg/kg dry weight), surpassing the permissible limit of 0.2 mg/kg according to QCVN 8-2:2011/BYT, while showing no affinity for lead.

• Cadmium Content in Mottled Spinefoot (Siganus fuscescens) and Initial Risk Assessmentto Consumer’s Health at the Coastal Zone in Quang Binh Province

  Vo Van Thiep, Tran The Hung, Nguyen Thi Huong Binh

  Date Received: 23-12-2020 / Date Accepted: 24-02-2021

   Abstract PDF (VIETNAMESE)

  Cadmium (Cd) contamination of fish species is one of the most serious issues globally, due to fish play an important role in the human diet. The liver, gills, and muscles of Mottled spinefoot from Quang Binh (n = 50 per item) were collected to specify the variations of their cadmium content and assess their hazards towards human consumption. Cadmium content was analyzed by the flame atomic absorption spectrometer. The estimated daily intake (EDI) and target hazard quotient (THQ) were established to estimate the human health hazard. The concentration of cadmium tended to accumulate higher in the liver rather than gills and muscles. Although the majority of the cadmium content in the liver (at Quang Phuc, Ba Don and Nhat Le, Dong Hoi) and gills (at Nhan Le) exceeds the threshold limit value by the Ministry of Health, the EDI value in muscles was below the provisional tolerable daily intake and the THQ less than 1. Therefore, there is no potential risk of Cd to the consumer’s health of this species in the Quang Binh coastal area.