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The Impact of Elevated Carbon Dioxide and Fertilizers on the Tomato-Spodoptera litura Interaction
|關鍵字:||Carbon dioxide;Fertilizer;Spodoptera litura;二氧化碳;肥料;斜紋夜蛾||出版社:||臺中巿： 國立中興大學農學院||Project:||農林學報, Volume 64, Issue 1, Page(s) 11-19.||摘要:||
In agriculture system, farmers usually use fertilizer to improve plant growth. The using of fertilizer not only affects plants directly, but also may influence herbivores by the changes of plants. The concentration of carbon dioxide continuously increases since the industrial revolution. The change of concentration of carbon dioxide could have some effects on ecological system. In this study, tomato plants were treated with elevated carbon dioxide and fertilizer to observe how these two factors affected the growth performance and phytochemistry of tomato plants. In addition, the tomato leaves treated with carbon dioxide and fertilizer were used to feed Spodoptera litura third instar larvae, to observe the effect on the relative growth rates of S. litura. The results showed that weight and leaf area of tomato plants would increase by both of higher carbon dioxide concentration and fertilizer. When concentration of carbon dioxide elevated, trypsin inhibitor activity and carbohydrate content of tomato leaves would increase; but nitrogen content of tomato leaves would decrease. The relative growth rate of S. litura fed with the tomato leaves treated with higher carbon dioxide concentration would decrease. When fertilizer was added, trypsin inhibitor activity, polyphenol oxidase activity, carbohydrate content, and total phenolic content of tomato leaves would decrease; but nitrogen content of tomato leaves would increase. The relative growth rate of S. litura fed with the tomato leaves added with fertilizer would increase. In the future, with the elevation of carbon dioxide concentration, it would improve growth of tomato plants and on the contrary, inhibit the growth of S. litura larvae. However, the using of fertilizer also needs to be considered to prevent from increasing of insect damage.
|Appears in Collections:||第64卷 第01期|
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