Photosynthetic response of drought- and salt-stressed tomato and turnip rape plants to foliar-applied glycinebetaine

被引：86
|
作者：
Mäkelä, P
Kontturi, M
Pehu, E
Somersalo, S
机构：
[1] Univ Helsinki, Dept Plant Prod, Sect Crop Husb, FIN-00014 Helsinki, Finland
[2] Agr Res Ctr, Inst Crop & Soil Sci, FIN-31600 Jokioinen, Finland
来源：
PHYSIOLOGIA PLANTARUM | 1999年 / 105卷 / 01期
关键词：
D O I：
10.1034/j.1399-3054.1999.105108.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The effect of foliar application of glycinebetaine (50 and 100 mM) on photosynthesis, stomatal conductance, photorespiration and transpiration in tomato cv. Bos 3155 (Lycopersicon esculentum Mill.) and summer turnip rape cv. Kulta (Brassica rapa L. ssp. oleifera) plants subjected to drought and salinity are reported. Glycinebetaine application increased net photosynthesis of stressed plants. This was mostly due to increased stomatal conductance following glycinebetaine application as there mere no marked changes in light and CO2 saturated rates of O-2 evolution. Moreover, glycinebetaine application resulted in a significant decrease of photorespiration both in drought- and salt-stressed plants.
引用
收藏
页码：45 / 50
页数：6
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