华北农学报 ›› 2014, Vol. 29 ›› Issue (3): 136-141. doi: 10.7668/hbnxb.2014.03.025

所属专题: 水稻

• 论文 • 上一篇    下一篇

CO2浓度增高对北方水稻籽粒灌浆特性的影响

姜乐1, 赵洪亮1, 谢立勇1, 王惠贞1, 冯永祥2   

  1. 1. 沈阳农业大学 农学院, 辽宁 沈阳 110866;
    2. 黑龙江八一农垦大学 农学院, 黑龙江 大庆 163319
  • 收稿日期:2014-04-10 出版日期:2014-06-28
  • 通讯作者: 谢立勇(1969-),男,辽宁铁岭人,副教授,博士后,主要从事农业气象和气候变化对农业影响的研究。赵洪亮(1980-),男,河北徐水人,讲师,博士,主要从事气候变化与作物生理生态研究。
  • 作者简介:姜乐(1988-),男,辽宁沈阳人,在读硕士,主要从事气候变化与农业的研究。
  • 基金资助:
    国家自然科学基金项目(41175097)

Effect of CO2 Enrichment on Rice Grain Filling under FACE System in North China

JIANG Le1, ZHAO Hong-liang1, XIE Li-yong1, WANG Hui-zhen1, FENG Yong-xiang2   

  1. 1. College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China;
    2. College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
  • Received:2014-04-10 Published:2014-06-28

摘要: 利用FACE (Free air CO2 enrichment)试验平台,选取北方主栽品种松粳9号和稻花香2号为试材,研究CO2浓度增高(600 μmol/mol)对不同水稻品种籽粒灌浆特性的影响。在FACE条件下,松粳9号的籽粒最大灌浆速率增幅为18.0%,平均灌浆速率增幅为17.6%,灌浆前期延长0.88 d,灌浆中期和后期缩短了2.04,1.44 d,总灌浆时间缩短2.60 d。稻花香2号经过FACE处理后到达最大灌浆速率的时间比对照晚4.27 d,并且最大灌浆速率低于对照6.8%,平均灌浆速率低于对照7.7%,灌浆前期比对照延长2.45 d,中期延长3.63 d,后期延长2.56 d。千粒质量和籽粒灌浆参数的相关性分析表明,粒重和灌浆速率的关系更为密切。说明不同水稻品种的灌浆特性对CO2浓度升高的响应存在差异,松粳9号的主要响应方式是灌浆速率的提高,而稻花香2号则是灌浆持续时间的延长。

关键词: 大气CO2富集系统, 水稻, 灌浆特性, CO2浓度增高

Abstract: Effects of elevated (600 μmol/mol) CO2 concentration on grain-filling characteristics of different japonica rice cultivars were investigated using Songjing 9 and Daohuaxiang 2 by mini FACE(Free air CO2 enrichment) experimental platform.In blossom, we Chose 100 stalks and put a notice plate with date on each one.From five days after blossom, each treatment was randomly taken 5 to 8 tassels, sampling time in the morning 10-12, a total of five times.After sampling 105 ℃ heating 30 min, then 70 ℃ drying to constant weight, get rid of the empty grain and ill grain, select 200 grains' weight converted into thousand-grain weight.Using the logistic equation for the filling process of dynamic fitting analysis.The results showed that the maximum and average grain-filling rate of Songjing 9 was increased by 18% and 17.6% under mini FACE.The duration of early grain-filling of Songjing 9 was prolonged for 0.88 d, while the duration of total grain-filling was shortened by 2.60 d under mini FACE.The day of maximum grain-filling rate of Daohuaxiang 2 was delayed for 4.27 d, and the maximum and average grain-filling rate was decreased by 6.8% and 7.7%.The duration of early, middle and late grain-filling was prolonged for 2.45, 3.63, 2.56 d.The results indicated that grain-filling characteristics of different rice varieties respond to elevated CO2 concentration difference.The filling rate of Songjing 9 will be quickly and the filling stage of Daohuaxiang 2 will be longer.The results of the study can improve and genetic improvement of rice cultivation measures to provide certain theory reference and practice basis.

Key words: FACE, Rice, Grain filling properties, CO2 enrichment

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引用本文

姜乐, 赵洪亮, 谢立勇, 王惠贞, 冯永祥. CO2浓度增高对北方水稻籽粒灌浆特性的影响[J]. 华北农学报, 2014, 29(3): 136-141. doi: 10.7668/hbnxb.2014.03.025.

JIANG Le, ZHAO Hong-liang, XIE Li-yong, WANG Hui-zhen, FENG Yong-xiang. Effect of CO2 Enrichment on Rice Grain Filling under FACE System in North China[J]. journal1, 2014, 29(3): 136-141. doi: 10.7668/hbnxb.2014.03.025.

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