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中国农学通报 ›› 2018, Vol. 34 ›› Issue (2): 1-5.doi: 10.11924/j.issn.1000-6850.casb17090091

• 农学 农业基础科学 •    下一篇

土壤和肥力对辽粳401秧苗根系形态的影响

唐志强,蒋洪波,沈枫,吕桂兰,马秀芳,李睿,王昌华,李跃东   

  1. 辽宁省水稻研究所,辽宁省水稻研究所,辽宁省水稻研究所,辽宁省水稻研究所,辽宁省水稻研究所,辽宁省水稻研究所,辽宁省水稻研究所,辽宁省水稻研究所
  • 收稿日期:2017-09-15 修回日期:2017-10-15 接受日期:2017-10-24 出版日期:2018-01-23 发布日期:2018-01-23
  • 通讯作者: 李跃东
  • 基金资助:
    国家重点研发计划资助课题(National Key R&D Program of China)粮食丰产增效科技创新项目“水稻机械化及节肥节药关键技术研究” (2017YFD0300709);沈阳市农业产业发展专项“优质水稻新品种辽粳401、粳优106 产业化”(F16-119-3-00);沈阳市科技计划项目“水稻标准化栽培技 术研究”(17-149-3-00)。

Effect of Soil Types and Fertility on Root Morphology of‘Liaojing401’Seedling

蒋洪波,沈枫,吕桂兰,马秀芳,李睿,王昌华 and 李跃东   

  • Received:2017-09-15 Revised:2017-10-15 Accepted:2017-10-24 Online:2018-01-23 Published:2018-01-23

摘要: 为探明不同质地土壤、肥力对水稻秧苗根系形态的影响,试验以中晚熟品种辽粳401为试验材料,选用壤质土、黏质土和砂质土3种土壤类型,采用随机区组方法研究了16种氮肥、磷肥、钾肥配比对水稻秧根系形态指标的影响。结果表明:在黏质土条件下,氮肥、磷肥、钾肥分别为4g/盘、2.5g/盘、3.5 g/盘秧苗根系形态指标最佳,有利于根系根系生长、根系与养分的接触,并能够提高养分利用率,促进地上部生物量积累,培育健壮的秧苗。

关键词: 稻曲病, 稻曲病, 生物学特性, 侵染过程, 分子生物学, 研究进展

Abstract: To study the effects of different soil types and fertility on root morphology of rice seedling, the middle-late maturing variety‘Liaojing401’was used as material. Three soil types of loamy soil, clayey soil and sandy soil were selected. The effects of sixteen proportions of nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer on the morphological indexes of rice root were studied. The results showed that under the condition of clayey soil, the seedling root morphology was the best when nitrogen fertilizer, phosphate fertilizer and potash fertilizer was 4, 2.5, 3.5 g/tray, respectively, which was beneficial to root growth and the contact of roots with nutrients, and could improve the nutrient utilization rate and the accumulation of biomass above the ground, thus to achieve the purpose of cultivating healthy seedlings.