| Effect of nitrogen dressing ratios and high temperature on the formation of starch after anthsis of spring wheat |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2017.05.31 |
| Key Words: spring wheat high temperature nitrogen starch yield |
| Author Name | Affiliation | | MU Yu | School of Agriculture, Ningxia University, Yingchuan, Ningxia 750021, China | | ZHU Rong | School of Agriculture, Ningxia University, Yingchuan, Ningxia 750021, China | | SUN Li-ying | School of Agriculture, Ningxia University, Yingchuan, Ningxia 750021, China | | KANG Jian-hong | School of Agriculture, Ningxia University, Yingchuan, Ningxia 750021, China |
|
| Hits: 1191 |
| Download times: 648 |
| Abstract: |
| Effect of nitrogen dressing ratios and high temperature on the formation of starch and yield after anthsis in spring wheat were studied by pot experiment. The result showed that, under high temperature,grain amylose, amylopectin, the concentration of total starch, key enzymes (ADPG-PPase, UDPG-PPase, SSS, GBSS) activity and yield of Ningchun 4 and Ningchun 47 were lower than the normal temperature processing. The concentration of amylose, the activity of AGPP-PPase, GBSS following the nitrogen dressing ratios of N1 (3∶7) and N2 (4∶6) were higher than the other nitrogen dressing ratios. Therefore, the concentration of starch and key enzymes activity were mainly affected by high temperature after flowering, which then affected the yield and quality. The effect of high temperature the yield and quality could be mitigated by reasonable nitrogen dressing ratios (3∶7 and 4∶6). For this reason, it was suggested that the reasonable measures could be taken to ease the harm of high temperature and improve the yield and quality of the spring wheat. |
|
|
|