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首页> 外文期刊>Nematropica >Effect of soil temperature on Longidorus africanus damage to carrot and lettuce seedlings.
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Effect of soil temperature on Longidorus africanus damage to carrot and lettuce seedlings.

机译：土壤温度对非洲长颈鹿对胡萝卜和生菜幼苗的伤害。

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Effect of soil temperature on Longidorus africanus damage to carrot and lettuce seedlings. Nematropica 31:87-93. The effect of soil temperature on Longidorus africanus damage to lettuce and carrot seedlings was studied in greenhouse experiments. Cones containing 70 ml sterilized sand were seeded with carrot or lettuce, inoculated with a range of L. africanus densities and placed in waterbaths maintaining soil temperatures of 17, 20, 25, or 30 x C. At harvest, 30 days and six weeks after inoculation for lettuce and carrot respectively, lettuce dry weights and carrot fresh weights were determined. Data analysis showed that minimum yields were significantly lower at 25 x C than at 17 x C but that effects of soil temperature on tolerance limits were very minor. Results from this study suggest that seeding of carrot or lettuce at soil temperatures ? 17 x C would significantly reduce damage by L. africanus
机译：土壤温度对非洲长颈鹿对胡萝卜和生菜幼苗的伤害。 Nematropica 31：87-93。在温室试验中研究了土壤温度对非洲半球虫对莴苣和胡萝卜幼苗的损害的影响。在装有70毫升无菌沙的锥果上播种胡萝卜或生菜，接种一定范围的非洲象鼻松密度，然后放入水浴中，保持土壤温度为17、20、25或30 xC。收获后30天零六周分别接种生菜和胡萝卜，确定生菜干重和胡萝卜鲜重。数据分析表明，最低产量在25 x C时显着低于17 x C，但土壤温度对耐受极限的影响很小。这项研究的结果表明，在土壤温度下播种胡萝卜或生菜？ 17 x C会大大减少非洲象鼻虫的伤害

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