浙江农业科学

浙江农业科学 ›› 2026, Vol. 67 ›› Issue (9): 2113-2118.DOI: 10.16178/j.issn.0528-9017.20260373

• 粮食作物 • 上一篇    下一篇

不同育秧剂对豫南再生稻早春低温胁迫下秧苗素质及抗逆性的影响

赵海英1(), 李歌星1, 谷孟轩1, 丰大清1, 余贵龙1, 张强2, 刘祥臣1, 付强1, 刘亚丽3   

  1. 1.信阳市农业科学院，河南 信阳 464000
    2.河南城建学院，河南 平顶山 467036
    3.信阳市浉河区农技服务中心，河南 信阳 464000
  • 收稿日期:2026-05-12 出版日期:2026-09-11 发布日期:2026-09-24
  • 作者简介:赵海英，主要从事水稻高产栽培等方面研究。E-mail：zhy292@126.com。
  • 基金资助:
    河南省农业产业技术体系建设专项资金(Z2012-04-01);河南省水稻产业技术体系(HARS-22-03)

Effects of different seedling raising agents on seedling vigor and stress resistance of ratoon rice under early spring low-temperature stress in southern Henan rice region

ZHAO Haiying1(), LI Gexing1, GU Mengxuan1, FENG Daqing1, YU Guilong1, ZHANG Qiang2, LIU Xiangchen1, FU Qiang1, LIU Yali3   

  1. 1.Xinyang Academy of Agricultural Sciences，Xinyang 464000，Henan
    2.Henan University of Urban Construction，Pingdingshan 467036，Henan
    3.Agricultural Technology Service Center of Shihe District，Xinyang City，Xinyang 464000，Henan
  • Received:2026-05-12 Online:2026-09-11 Published:2026-09-24

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摘要：

为筛选适配豫南稻区再生稻早春育秧的高效育秧剂，缓解倒春寒引发的低温胁迫及立枯病危害，本试验以豫南再生稻主栽品种桃优香占为试验材料，在人工气候室模拟低温胁迫环境，设置纯土（CK）、龙祺牌育秧剂（Z）、自研育秧剂（Y）、许博士牌育秧剂伴侣（X）、成标牌硫磺（S）5个处理，比较不同处理对秧苗素质及生理生化指标的调控效应，以明确自研育秧剂的抗逆机制与应用价值。结果表明：低温胁迫下，与CK相比，各处理均能提升秧苗素质，其中，Y和Z处理的效果较好。Y、Z处理的秧苗茎基宽均较CK显著（p<0.05）增加41.2%；Y处理的地上部鲜重、地下部鲜重较CK分别显著增加148.1%、41.2%，总根长、根系总表面积、总根体积分别较CK显著增加67.6%、55.2%、100.0%，立枯病发病率较CK显著降低58.67百分点；Y处理还可激活抗氧化系统，其过氧化物酶（POD）、过氧化氢酶（CAT）和超氧化物歧化酶（SOD）活性较CK分别显著提升45.56%、58.48%、35.45%，丙二醛（MDA）含量显著降低28.6%，脯氨酸、可溶性糖含量分别较CK显著提升61.08%、72.88%，可有效维持细胞膜完整性与渗透调节能力。结果表明，自研育秧剂Y处理可以显著增强豫南再生稻秧苗的耐低温、抗立枯病能力，为区域再生稻早春安全育秧提供了理论依据与技术支撑。

关键词: 再生稻, 早春育秧, 低温胁迫, 秧苗素质

Abstract:

To screen high-efficiency seedling-raising agents suitable for early-spring seedling raising of ratoon rice in the southern Henan rice region，and alleviate low-temperature stress caused by late spring cold and the damage of sheath blight，this experiment took Taoyou Xiangzhan， the main cultivar of ratoon rice in southern Henan， as the test material. A low-temperature stress environment was simulated in an artificial climate chamber，with five treatments（CK，pure soil；Z，Longqi brand seedling-raising agent；Y，self-developed seedling-raising agent；X，Dr. Xu brand seedling-strengthening adjuvant；S，Chengbiao brand sulfur）set up. The regulatory effects of different treatments on seedling quality and physiological and biochemical indices were compared，and the stress resistance mechanism and application value of the self-developed formula were clarified. The results showed that under low temperature stress，compared with CK，all treatments could improve the seedling quality，among which the Y and Z treatments had better effects. The stem base width of the seedlings in treatments Y and Z significantly （p<0.05） increased by 41.2% compared with CK. The fresh weight of stems and roots in treatment Y significantly increased by 148.1% and 41.2% compared with CK. The total root length，total root surface area，and total root volume significantly increased by 67.6%，55.2%，and 100.0%， respectively， compared with CK. The incidence of seedling blight was reduced by 58.67 percentage points compared with CK. Treatment Y activated the antioxidant system：the activities of peroxidase（POD），catalase（CAT）and superoxide dismutase（SOD） significantly increased by 45.56%，58.48%，35.45% compared with CK，respectively；the malondialdehyde（MDA）content significantly decreased by 28.6%，the proline and soluble sugar content were increased by 61.08%，72.88%， respectively， compared with CK，effectively maintaining cell membrane integrity and osmotic adjustment capacity. The results showed that the self-developed seedling raising agent Y significantly enhanced the low-temperature tolerance and blight resistance of ratoon rice seedlings in southern Henan，providing theoretical basis and technical support for safe early-spring seedling raising of regional ratoon rice.

Key words: ratoon rice, early-spring seedling raising, low-temperature stress, seedling quality

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