欢迎访问《中国农学通报》,

中国农学通报 ›› 2021, Vol. 37 ›› Issue (30): 77-82.doi: 10.11924/j.issn.1000-6850.casb2020-0797

所属专题: 农业气象

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

河套灌区脱水青红椒终霜冻气象指标研究

包佳婧(), 孔德胤()   

  1. 内蒙古巴彦淖尔市农业气象试验站,内蒙古临河 015000
  • 收稿日期:2020-12-15 修回日期:2021-02-15 出版日期:2021-10-25 发布日期:2021-12-08
  • 通讯作者: 孔德胤
  • 作者简介:包佳婧,女,1987年出生,内蒙古巴彦淖尔人,工程师,硕士,主要从事农业气象服务与科研。通信地址:015000 内蒙古巴彦淖尔市临河区气象局,Tel:0478-8271170,E-mail: 412552430@qq.com
  • 基金资助:
    内蒙古自治区气象局青年基金项目“河套灌区青红椒、辣椒终霜冻指标研究”(nmqnqx202003)

Last Frost Index of Dehydrated Green Pepper in Hetao Irrigation District

Bao Jiajing(), Kong Deyin()   

  1. The Agricultural Meteorological Experimental Station in Bayannaoer City, Linhe Inner Mongolia 015000
  • Received:2020-12-15 Revised:2021-02-15 Online:2021-10-25 Published:2021-12-08
  • Contact: Kong Deyin

摘要:

为了更好地开展脱水青红椒终霜冻气象服务,本研究选用脱水青红椒‘茄门’幼苗为试验材料,利用MSX-2F人工模拟霜箱系统模拟自然降温过程,通过测定幼苗的叶温,记录植株冻伤、冻死情况,结合光合作用,综合确定河套灌区脱水青红椒终霜冻指标。结果表明:(1)脱水青红椒幼苗全部冻死的最低温度≤-4℃;(2)脱水青红椒幼苗结冰点的范围为-2.7℃~-3.2℃,过冷却点的范围为-3.4℃~-4.8℃;(3)苗龄越大的脱水青红椒幼苗,耐受冻害的能力越强;(4)脱水青红椒幼苗轻霜冻地表温度指标为-3.5℃,重霜冻地表温度指标为-5.0℃。

关键词: 脱水青红椒, 过冷却点, 结冰点, 霜冻指标, 光合作用, 河套灌区, 终霜冻, 气象服务

Abstract:

To develop the meteorological service for last frost on dehydrated green pepper, the authors choose dehydrated green pepper variety ‘Qiemen’ as material, simulated the natural frost cooling process by using the MSX-2F artificial frost box system, and detected the frostbite and death statistics by measuring leaf temperature with the thermocouple probe. Combined with the changes of photosynthesis, the authors preliminarily established the meteorological index of last frost of dehydrated green pepper. The results showed that: (1) the minimum temperature for dehydrated green pepper to be frozen to death was ≤-4℃; (2) the freezing point of dehydrated green pepper was -2.7 to -3.2℃, the super cooling point was -3.4 to -4.8℃; (3) the dehydrated green pepper with relatively high seedling age had a stronger cold-resistance; (4) the land surface temperature index of light frost and heavy frost for dehydrated green pepper seedlings was -3.5℃ and -5.0℃, respectively.

Key words: dehydrated green pepper, super cooling point, freezing point, frost index, photosynthesis, Hetao irrigation district, last frost, meteorological service

中图分类号: