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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front Agric Chin    2011, Vol. 5 Issue (3) : 328-332     DOI: 10.1007/s11703-011-1103-5
Preparation and study of an environmentally friendly seed- coating agent for cucumber
Defang ZENG(), Renjie TU
Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
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Traditional seed-coating agents are widely used, and their accumulative toxicity in soil brings a great hazard to natural environment and human health. In this study, a novel cucumber seed-coating agent was prepared from natural polysaccharide, fertilizer and microelement, etc. Results indicated that the agent had an excellent control effect on pests and increased yield by 8.5% to 9.3%, while the material cost was decreased by 16.7% compared with the traditional toxic seed-coating agent. In addition, the toxicity of the novel agent was also lower than that of traditional ones. Therefore, the application of the novel agent for cucumber is an appropriate option for controlling pests and replacing high toxicity ones.

Keywords seed-coating agent      natural polysaccharide      germination percentage      cucumber yield     
Corresponding Authors: ZENG Defang,   
Issue Date: 05 September 2011
URL:     OR
TreatmentMean artificial mixed feed consumption (g)AR (%)Mean leaf area consumption (mm2)AR (%)
1% NS1.13±0.05b50.44956.4±65.43a29.52
2% NS0.91±0.05c60.09815.8±47.58e39.87
3% NS0.69±0.04e69.74611.5±46.52b54.93
4% NS0.42±0.03a81.58235.3±13.63c82.66
Tab.1  Effects of different treatments on the consumption of artificial mixed feed and cucumber leaf area
Fig.1  Effects of different treatments on germinability (GE) and germination percentage (GP).
TreatmentGenderAcute oral toxicity LD50 (mg/kg)Acute skin toxicity LD50 (mg/kg)Toxicity classification
1% NSmale8952987low-toxic
2% NSmale8792857low-toxic
3% NSmale8652786low-toxic
4% NSmale8592758low-toxic
Tab.2  Effects of different treatments on median lethal dose
TreatmentGermination percentage (%)Yield (kg/hm2)Cost (US$/kg)
1% NS91.2b91.4b215600c203100b1.5
2% NS91.4a89.2a205400a199600b1.5
3% NS92.6c91.5b223600b215600b1.5
4% NS93.6b92.2c221400a213600a1.5
Tab.3  Effects of different treatments on germination percentage and yield
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