| Effects of new active agents on the growth and yield of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2011.01.33 |
| Key Words: biochemical agent winter wheat photosynthesis chlorophyll grain yield |
| Author Name | Affiliation | | LIU Xinghai | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Key Laboratory of Agro Environment & Climate Change, Ministry of Agriculture, Beijing 100081, China
Key Laboratory for Dryland Agriculture, Ministry of Agriculture, Beijing 100081, China | | BAI Wenbo | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Key Laboratory of Agro Environment & Climate Change, Ministry of Agriculture, Beijing 100081, China
Key Laboratory for Dryland Agriculture, Ministry of Agriculture, Beijing 100081, China | | SONG Jiqing | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Key Laboratory of Agro Environment & Climate Change, Ministry of Agriculture, Beijing 100081, China
Key Laboratory for Dryland Agriculture, Ministry of Agriculture, Beijing 100081, China |
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| Abstract: |
| The chlorophyll content, photosynthesis and transpiration, water use efficiency, dry matter accumulation and distribution were studied in field experiment, with the aim of determining the effects of multi-functional anti-transpirant (FA) and new active agent (GR) on the growth and grain
yield of winter wheat after foliage spraying before the flowering stage. The results indicated that after 17 days, the chlorophyll content and photosynthesis in flag leaves of winter wheat increased by 5.0%～9.1% and 33.1%～56.7% compared to those of the control. In FA and GR treatments, the dry matter accumulations in stems and leaves incr sharply eased by 23.5% and 16.0%, respectively. Meanwhile, the spikes dry weight and total dry matter in FA treatment significantly increased by 30.2% and 22.0%. The grain yields increased by 7.1% and 5.1%, respective
ly, after spraying FA and GR. It was initially considered that due to the increasing of chlorophyll content, photosynthetic capacity, and the effective control and regulation of dry matter partition, the yields of winter wheat were enhanced in biochemical agent treatments. |
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