摘要
以黄化番茄和普通番茄幼苗为试材,研究UV-B辐射对番茄幼苗生长和光合作用的影响.结果表明:UVB辐射处理对番茄幼苗株高、茎粗、叶片的抑制作用非常明显,且对叶绿素破坏严重,导致幼苗光合速率降低,类黄酮含量升高10%以上.UV-B处理后两种番茄生长都受到明显抑制,但以黄化苗的变化更为明显,表明黄化番茄幼苗对UV-B辐射更为敏感.
The effect of UV-B on the growth and photosynthesis in etiolating type and the normal toma-to seedling were studied.The results showed that the plant height,stem diameter and leaf size of the two kinds of tomato seedlings were inhibited by UV-B radiation.The UV-B radiation caused great damage of chlorophyll and decrease in photosynthetic rate （Pn ）.The flavonoid content increased considerably under UV-B radiation.The changes of the etiolating type were more distinctly.It is indicated that the etiolating type is more sensitive than the normal tomato to UV-B radiation.
出处
《甘肃农业大学学报》
CAS
CSCD
北大核心
2014年第5期75-79,87,共6页
Journal of Gansu Agricultural University
基金
甘肃省农科院农业科技创新专项(2013GAAS15)"农业部园艺作物生物学与种质创制学科群"
"农业部西北地区蔬菜科学观测实验站"项目
关键词
黄化番茄
UV-B
幼苗生长
光合作用
etiolating type tomato enhanced UV-B seeding growth photosynthesis
