| 摘要: |
| 以玉金香和白兰瓜2个品种为试材,在人工气候箱适温栽培条件下,研究不同昼温(20～25 ℃,25～30 ℃,30～35 ℃)对厚皮甜瓜幼苗生长与生理特性的影响。结果表明,在适温条件下,2个厚皮甜瓜品种的幼苗对昼温反应明显不同,在昼温25～30 ℃条件下,早熟品种玉金香幼苗的叶面积、干质量和鲜质量、根系活力及光合速率等均达最大值;在昼温30～35 ℃条件下,晚熟品种白兰瓜幼苗的各生长生理指标均为最大值。说明晚熟品种白兰瓜幼苗生长比早熟品种玉金香要求更高的昼温。 |
| 关键词: 厚皮甜瓜 昼温 幼苗生长 生长特性 生理特性 |
| DOI： |
| 分类号: |
| 基金项目:陕西省科技攻关项目（2004K01-G11） |
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| Effects of different day-temperature on the growth and physiology characteristics of muskmelon seedling |
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| Abstract: |
| The subjects of the experiment were two kinds of muskmelon cultivars: Yujinxiang and Bailangua.Under the suitable temperature in artificial climate box,the effect of different day-temperature(20-25,25-30,30-35 ℃) on the growth and physiology characteristics of muskmelon seedling was studied.Results showed the seedlings of two kinds of cultivars responded to the day-temperature quite differently.When the day-temperature was 25-30 ℃,for the seedling of Yujinxiang cultivars,its leaf area,fresh weight,dry weight, root activity and photosynthestic rate would all reach the max;while the day-temperature was 30-35 ℃,the seedlings of Bailangua would appear best.All these indicate that the breed of later-maturing like Bailangua needs higher day-temperature than the breed of early-maturing likes Yujinxiang in the seedling stage. |
| Key words: muskmelon,day-temperature,seedling growth,growth characteristics,physiology characteristics |
