中国稻米

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热粳优35在江西一季稻区的田间耐热性及产量评价

  1. 1江西省邓家埠水稻原种场杨家分场,江西 余江 335200;2江西省超级水稻研究发展中心 江西省农业科学院,南昌330200
  • 出版日期:2018-11-20 发布日期:2018-11-20
  • 通讯作者: 曹志斌
  • 基金资助:

    江西省青年科学基金(20151BAB214013);江西省重点研发计划项目(20161BBF60129)

Evaluation of Yield and Field Resistance to Heat of Regengyou 35 in Single-season Rice Areas of Jiangxi Province

  • Online:2018-11-20 Published:2018-11-20

摘要:

2016-2017年在江西省邓家埠水稻原种场,采用田间自然高温方法鉴定了耐热杂交粳稻品种热粳优35的耐热性,并对其农艺性状进行了评价。结果表明,热粳优35在抽穗期遇到连续2周持续36℃~38℃高温天气的情况下,耐热性表现良好,灌浆充分,籽粒饱满,2年的平均结实率均超过75%,显著优于Y两优1号,产量水平与Y两优1号相当。可见,热粳优35在江西一季稻区表现出良好的耐热性,具有良好的推广应用前景。

关键词: 杂交粳稻, 自然高温, 田间表现, 耐热性评价

Abstract:

The resistance to heat of Regengyou 35 was evaluated by natural high temperature in 2016-2017, at Rice Foundation Seed Farm of Dengjiabu of Jiangxi province. The results indicated that the resistance to heat of Regengyou 35 was signficiant better than Y Liangyou 1, during two weeks of 36℃~38℃, and the seed setting rate exceeded 75%. It has adequate grouting and full grains, the yield is similar to Y Liangyou 1. Therefore, this variety shows good resistance to heat in single-season rice areas of Jiangxi province and has good prospects of popularization and application.

Key words: hybrid japonica rice, natural high temperature, field performance, evaluation of resistance to heat

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