| Effects of sowing date and planting density on yield and quality of winter wheat in rained dryland areas of Longnan |
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| DOI：10.7606/j.issn.1000-7601.2011.06.14 |
| Key Words: winter wheat sowing date planting density yield quality rained dryland area |
| Author Name | Affiliation | | ZHANG Yaohui | Tianshui Institue of Agricultural Sciences/ Tianshui Branch of China National Wheat Improvement Center, Tianshui,Gansu 741010,China | | SONG Jianrong | Tianshui Institue of Agricultural Sciences/ Tianshui Branch of China National Wheat Improvement Center, Tianshui,Gansu 741010,China | | YUE Weiyun | Tianshui Institue of Agricultural Sciences/ Tianshui Branch of China National Wheat Improvement Center, Tianshui,Gansu 741010,China | | ZHOU Xiwang | Tianshui Institue of Agricultural Sciences/ Tianshui Branch of China National Wheat Improvement Center, Tianshui,Gansu 741010,China | | HE Chunyu | Wheat Research Institute,Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070,China |
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| Abstract: |
| The effects of sowing date and planting density on yield and quality of winter wheat variety Tianxuan 45 were studied through field tests and quality analysis. The results showed that wheat yield were decreased along with the delay of sowing date，spikes of wheat were raised through increasing planting density to improve wheat yield. From the interaction of sowing date and density，the appropriate sowing date was from September 25 to October 1, seeding rate was increased along with the delay of sowing date from september 25, 390×104 kermel/ hm2 to October 1, 570×104 kemel/hm2. Protein content and sedimentation value were decreased, wet gluten content， dough development and sable time were increased along with the delay of sowing date. When the planting density was 390×104 kernel/ hm2，protein content and wet gluten content were the maximum value, which were 14.24% and 31.72% respectively. According the need, the proper sowing date and planting density would be detemined to ensure the coordination of yield and quality of wheat. |
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