Physiological effect of new anti-transpirant application on maize
文献类型: 外文期刊
第一作者: Li, MS
作者: Li, MS;Li, S;Zhang, SY;Chi, BL
作者机构:
关键词: anti-transpirant;maize;physiological effect;drought stress
期刊名称:WATER-SAVING AGRICULTURE AND SUSTAINABLE USE OF WATER AND LAND RESOURCES, VOLS 1 AND 2, PROCEEDINGS
ISSN:
年卷期: 2004 年
页码:
收录情况: SCI
摘要: The physiological effect of a new anti-transpirant on maize was studied by field trial. It was sprayed at 10 days before heading stage (A), ear filling stage (13) and 10 days before heading stage + ear filling stage (C), using the following concentrations: 0.5, 1.0, 1.5 and 2.0 ml/l. The results indicate that new anti-transpirant raised nitrate reductase activity (NRA), free proline content, chlorophyll content and water content of leaves, thus drought stress can be mitigated. It also raised the photosynthetic rate and reduced transpiration rate, led to growth stimulation and water loss reduction. The results indicate that treatment (C) has a cumulative effect compared with treatment (A) and (C), except for NRA. Grain yields were increased by 5.4% to 29.6%, depending on the different treatments. Optimal concentration was 1.5 ml/l, and the optimal application period was 10 days before heading stage + ear filling stage (C).
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