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中国农学通报 ›› 2017, Vol. 33 ›› Issue (23): 1-5.doi: 10.11924/j.issn.1000-6850.casb17010086

• 农学 农业基础科学 •    下一篇

氮磷处理对‘B 优268’产量及直链淀粉含量的影响

黎腊梅,杨国涛,蒋 芬,张 杰,范永义,韦叶娜,陈永军,胡运高   

  1. 西南科技大学生命科学与工程学院,西南科技大学生命科学与工程学院,西南科技大学生命科学与工程学院,西南科技大学生命科学与工程学院,西南科技大学生命科学与工程学院,西南科技大学生命科学与工程学院,西南科技大学水稻研究所,西南科技大学水稻研究所
  • 收稿日期:2017-01-16 修回日期:2017-02-20 接受日期:2017-03-22 出版日期:2017-08-21 发布日期:2017-08-21
  • 通讯作者: 胡运高
  • 基金资助:
    国家科技支撑计划:长江上游优质抗病种质创新与新品种选育,(2014BAD01B03-3);四川省十三五水稻育种攻关项目:引领性水稻育种材料与方法创新(2016NYZ0028);四川省省属高校科研创新团队建设计划;国家现代农业产业技术体系四川水稻创新团队岗位专家项目;2016年度四川省大学生创新创业训练计划项目(201610619018)。

Effect of Nitrogen and Phosphorus on Yield and Amylose Content of‘B You 268’

  • Received:2017-01-16 Revised:2017-02-20 Accepted:2017-03-22 Online:2017-08-21 Published:2017-08-21

摘要: 伴随米粉专用型水稻品种的推广与应用,探索通过栽培措施(肥料调节)调节其稻米中直链淀粉含量,改善稻米品质,使之更加符合米粉加工要求具有重要意义。本研究选用高直链淀粉型米粉专用稻‘B优268’为材料,采用随机区组设计,研究不同氮磷水平对杂交水稻‘B优268’产量性状及直链淀粉含量的影响。结果表明氮及氮磷互作效应对‘B优268’的产量及籽粒直链淀粉含量影响显著。足够的分蘖数和有效穗数是保证‘B优268’高产稳产的基础。优化稻田氮磷调控有利于提高‘B优268’稻谷产量和直链淀粉含量,氮肥用量为300 kg/hm2 N、磷肥用量为120 kg/hm2 P2O5时,‘B优268’稻谷产量和直链淀粉含量都较大。

关键词: 抹梢, 抹梢, 修剪, 柠檬, 春花秋熟果, 调控

Abstract: With the popularization and application of rice noodle special rice varieties, the amylose content in rice is regulated and the quality of rice is improved by exploring the cultivation measure (fertilizer regulation), to make rice quality more suitable to the need of rice flour processing. The high amylose rice flour special rice variety‘B You 268’was used as the material, and a randomized block experiment was designed to investigate the effects of different levels of nitrogen and phosphorous fertilizer on yield traits and amylose content of‘B You 268’. The results showed that, nitrogen and the interaction of nitrogen and phosphorus significantly affected the yield and the amylose content of‘B You 268’. Enough tiller number and effective panicle number were the foundation for high and stable yield of‘B You 268’. The optimization of nitrogen and phosphorous was beneficial to improving the yield and the amylose content of‘B You 268’.‘B You 268’got higher yield and amylose content when nitrogen fertilizer was 300 kg/hm2 N and phosphorus fertilizer was 120 kg/hm2 P2O5.