| Effects of irrigation and sulphur and their interactions on photosynthetic characteristics and yield of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2009.02.20 |
| Key Words: winter wheat irrigation sulphur photosynthetic characteristics yield |
| Author Name | Affiliation | | TIAN Wenzhong | Henan Agricultural University／National Engineering Research Centre for Wheat,Zhengzhou,He’nan 450002,China | | ZHU Yunji | Henan Agricultural University／National Engineering Research Centre for Wheat,Zhengzhou,He’nan 450002,China | | GUO Tiancai | Henan Agricultural University／National Engineering Research Centre for Wheat,Zhengzhou,He’nan 450002,China | | XIE Yingxin | Henan Agricultural University／National Engineering Research Centre for Wheat,Zhengzhou,He’nan 450002,China | | ZHU Xiaojie | Henan Agricultural University／National Engineering Research Centre for Wheat,Zhengzhou,He’nan 450002,China | | WANG Fan | Henan Agricultural University／National Engineering Research Centre for Wheat,Zhengzhou,He’nan 450002,China |
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| Abstract: |
| Effects of different sulphur rate and irrigation time on photosynthetic characteristics and yield of two high-yield winter wheat cultivars with different spike types (LKAZ8 with a big spike and YM49-198 with a multiple spike) were studied under field experiment conditions.The results showed that the yield of the S60 with 60 kg/hm2 was higher than that of S30 (30 kg/hm2) and S0 (0 kg/hm2) , and the differences reached a significant level between them. Compared to control (S0) , the yield of LKAZ8 and YM49-198 with S60 increased by 19.32% and 9.24%, respectively.Photosynthetic rate and SPAD value of two cultivars with S60 were higher than that with S30 (30 kg/hm2) and S0 (0 kg/hm2) at the final.Among irrigation treatments, difference existed between the yield of two cultivars.The highest yield treatment of LKAZ8 was W0 (non-irrigation) , and YM49-198 was W1 (jointing stage irrigation) treatment. |
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