High-temperature Stuffy Chamber for Controlling Verticillium Wilt on Eggplants

HUO Yunlong; WANG Fei; LI Yanjun; WANG Na; YU Ya; GONG Guohui

doi:10.19303/j.issn.1008-0384.2021.05.014

Volume 36 Issue 5

May 2021

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Article Navigation > Fujian Journal of Agricultural Sciences > 2021 > 36(5): 595-601

HUO Y L, WANG F, LI Y J, et al. High-temperature Stuffy Chamber for Controlling Verticillium Wilt on Eggplants [J]. Fujian Journal of Agricultural Sciences，2021，36（5）：595−601 doi: 10.19303/j.issn.1008-0384.2021.05.014

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HUO Y L, WANG F, LI Y J, et al. High-temperature Stuffy Chamber for Controlling Verticillium Wilt on Eggplants [J]. Fujian Journal of Agricultural Sciences，2021，36（5）：595−601 doi: 10.19303/j.issn.1008-0384.2021.05.014

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High-temperature Stuffy Chamber for Controlling Verticillium Wilt on Eggplants

doi: 10.19303/j.issn.1008-0384.2021.05.014

Institute of Economic Botany, Jilin Academy of Agricultural Sciences, Changchun, Jilin　130033, China

Received Date: 2020-10-12
Rev Recd Date: 2021-04-02

Available Online: 2021-04-20

Publish Date: 2021-05-31

Abstract

Abstract

Objective By analyzing the relation between changed thermal conductivity under varied moisture content and plough layer temperature of soil in a confined chamber and the incidence rate of verticillium wilt on eggplants grown on the soil, the mechanism and disinfecting effect of utilizing a high-temperature stuffy enclosure to mitigate the disease were studied. Method The transient plane source (TPS) technique was applied to measure the thermal conductivity of the chamber soil with different moisture content（0%、5%、10%、15%、20%、25%和30%） in the laboratory. Take 6 treatments（A₁; B₁; A₂; B₂; CK₁; CK₂）with 2 levels（5.06%和23.48%）of water content as the target, and measure the soil temperature at depths of 5, 10, 15, 20, 25,and 30 cm of each treatment, and statistics the incidence of eggplant Verticillium wilt in 6 treatments. Result Between 5% and 25%, high moisture content significantly raised the thermal conductivity of the soil,the relationship between them is nearly linear. Under same conditions, the high-temperature stuffy enclosure effectively elevated the temperatures of the soil layers throughout, and with the increase of soil water content, the corresponding soil layer temperature increased, and plastic film mulching can also increase the plough layer temperature. Under the same soil moisture content, the treatment of high-temperature stuffy enclosure with plastic film mulching, the incidence rate of Verticillium Wilt of eggplant is lower and the control effect is better. Conclusion It appeared that, by increasing the moisture content in soil, solar energy could be arrested more effectively throughout the soil due to the increased thermal conductivity. And the higher the soil temperature became, the greater the disinfection effect, which would result in reduced verticillium wilt on the eggplants grown in the high-temperature stuffy chamber.
- High-temperature stuffy chamber,
- moisture content of soil,
- thermal conductivity of soil,
- temperature of soil layers,
- eggplant verticillium wilt,
- disease incidence rate

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References(17)

References

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