| 周娟,舒小伟,许高平,赖上坤,杨连新,王余龙,董桂春.大气CO2浓度升高对不同类型水稻品种磷素吸收利用的影响[J].农业环境科学学报,2020,39(12):2726-2734. |
| 大气CO2浓度升高对不同类型水稻品种磷素吸收利用的影响 |
| Effects of elevated CO2 on phosphorus absorption and utilization in different rice varieties |
| 投稿时间：2020-06-15 |
| DOI：10.11654/jaes.2020-0679 |
| 中文关键词: CO2浓度升高 水稻 品种类型 产量 磷素吸收 磷素利用 |
| 英文关键词: elevated CO2 rice variety type grain yield phosphorus absorption phosphorus utilization |
| 基金项目:国家自然科学基金项目（31571608）；江苏高校优势学科建设工程资助项目；江苏省农业自主创新项目（CX（18）1002）；农业部农业重大技术协同推广计划试点项目（2002-SJ-047-03）；江苏省重点研究计划科技成果转化专项（BA2016173，202350040）；江苏省普通高校研究生科研创新计划；张家港市科技计划项目（农业）（ZKN1818） |
| 作者 | 单位 | E-mail | | 周娟 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009 | | | 舒小伟 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009 | | | 许高平 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009
天津市农业科学院农作物研究所, 天津 300112 | | | 赖上坤 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009
江苏省农业科学院宿迁农科所, 江苏 宿迁 223800 | | | 杨连新 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009 | | | 王余龙 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009 | | | 董桂春 | 江苏省作物遗传生理国家重点实验室培育点/农业部长江中下游作物生理生态与栽培重点开放实验室/粮食作物现代产业技术协同创新中心, 扬州大学, 江苏 扬州 225009 | gcdong@yzu.edu.cn |
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| 中文摘要: |
| 以常规粳稻、杂交籼稻、常规籼稻共6个品种为供试材料，研究FACE（大气CO2浓度增加200 μmol·mol-1）条件对不同品种类型水稻产量及磷素吸收、分配、运转、利用的影响。结果表明：FACE处理使水稻产量显著增加24.17%，常规粳稻、杂交籼稻、常规籼稻分别增加19.38%、24.02%和29.10%，常规籼稻增幅最大；FACE处理使抽穗期、成熟期植株含磷率分别增加2.51%、6.07%，抽穗期常规籼稻增幅最大，成熟期常规粳稻增幅最大，处理间无显著差异；FACE处理使抽穗期、成熟期植株吸磷量增加25.42%、32.51%，抽穗期以常规籼稻增幅最大，成熟期以常规粳稻增幅最大。成熟期吸磷量与水稻产量呈极显著线性正相关（r=0.457**）；FACE处理对抽穗期、成熟期各器官磷素占比无明显影响，但品种间差异较大；FACE处理使结实期茎鞘叶磷素运转量和穗部磷素增加量分别提高了25.77%、36.18%，两个性状均以常规籼稻增幅最大，促进磷素向穗部运转有利于水稻产量的提高（r=0.410**）；FACE处理降低常规粳稻和常规籼稻的磷素籽粒生产效率、干物质生产效率，增加了杂交籼稻磷素干物质和籽粒生产效率；FACE处理使磷肥偏生产力显著增加24.17%，常规籼稻增幅最大。研究表明，FACE处理显著提高了各类水稻的产量、植株吸磷量、磷素运转量、磷肥偏生产力，品种间差异较大。 |
| 英文摘要: |
| Six rice varieties, including conventional japonica rice, hybrid indica rice, and conventional indica rice, were used to study the effects of free-air CO2 enrichment(FACE) (atmospheric CO2 concentration increased by 200 μmol·mol-1)on the phosphorus absorption, distribution, transportation, and utilization, and yield of different types of rice. The results showed that FACE significantly increased rice yield by an average of 24.17%; the yields of conventional japonica rice, hybrid indica rice, and conventional indica rice increased by 19.38%, 24.02%, and 29.10%, respectively, under FACE. Furthermore, FACE increased the phosphorus content of plants by 2.51% and 6.07% at the heading and mature stage, respectively. The largest increases in phosphorus content were observed in conventional indica rice and conventional japonica rice at the heading and mature stage, respectively. However, these differences between FACE and the control were not significant. Phosphorus absorption was increased by 25.42% and 32.51% at the heading and mature stage, respectively, under FACE. The largest increases in phosphorus uptakes were observed in conventional indica rice and conventional japonica rice at the heading and mature stage, respectively. The amount of phosphorus taken up during the mature stage was strongly and positively correlated with rice yield(r=0.457**). There were no significant effects of FACE on the proportion of phosphorus in each organ at the heading or mature stage; however, there were significant differences in these proportions among varieties. Stem phosphorus transfer rate and panicle phosphorous content increased by 25.77% and 36.18%, respectively, when plants were subjected to FACE. Conventional indica rice exhibited the largest increases in both of the aforementioned traits. Promoting the transfer of phosphorous to panicles was beneficial for increasing rice yield(r=0.410**). The FACE treatment reduced the phosphorus grain production efficiency and dry matter production efficiency of conventional japonica rice and indica rice but increased the phosphorus dry matter and grain production efficiency of hybrid indica rice. Finally, FACE significantly increased the partial productivity of phosphorus fertilization by 24.17%, with conventional indica rice showing the largest increase. In summary, FACE significantly increased rice yield, phosphorus absorption, phosphorus transfer, and partial productivity of phosphorus fertilization. Significant differences were observed among rice varieties. |
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