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中国农学通报 ›› 2017, Vol. 33 ›› Issue (25): 59-63.doi: 10.11924/j.issn.1000-6850.casb16090140

所属专题: 园艺 农业气象

• 林学 园艺 园林 • 上一篇    下一篇

河套灌区加工型番茄春霜冻指标研究

高飞翔,孙向伟,杨钦宇,郭婕,张雁飞,王文清,杨松,王海梅   

  1. 内蒙古巴彦淖尔市农业气象试验站,内蒙古巴彦淖尔市农业气象试验站,内蒙古巴彦淖尔市农业气象试验站,内蒙古巴彦淖尔市农业气象试验站,内蒙古巴彦淖尔市农业气象试验站,内蒙古巴彦淖尔市农业气象试验站,内蒙古巴彦淖尔市农业气象试验站,内蒙古自治区气象科学研究所
  • 收稿日期:2016-09-30 修回日期:2017-02-09 接受日期:2017-02-15 出版日期:2017-09-15 发布日期:2017-09-15
  • 通讯作者: 高飞翔
  • 基金资助:
    内蒙古自治区气象局青年气象科技项目“河套地区加工型番茄终霜冻指标研究”(nmqnqx201301)。

Spring Frost Index of Processing Tomato in Hetao Irrigation District

  • Received:2016-09-30 Revised:2017-02-09 Accepted:2017-02-15 Online:2017-09-15 Published:2017-09-15

摘要: 为了更好地开展加工型番茄春霜冻气象服务,本研究选用加工番茄‘里格尔87-5’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,结合荧光参数值,初步确定河套灌区番茄霜冻指标。结果表明:(1)番茄幼苗全部冻死的最低温度为≤-5℃;(2)番茄幼苗过冷却点的范围为-3.1~-5.0℃之间,结冰点的范围为-2.4~-4.9℃之间;(3)相对较小苗龄的番茄,抗寒能力更强;(4)番茄幼苗轻霜冻地表温度指标为-2℃,重霜冻地表温度指标为-4℃。

关键词: 固氮, 固氮, 芽孢杆菌, nifH结构基因, 16S rDNA

Abstract: To better provide meteorological service of spring frost forecasting for processing tomato, the authors chose processing tomato variety‘Liger 87-5’as material, to simulate the natural frost cooling process by using the MSX-2F artificial frost box system. The authors obtained leaf temperature by the thermocouple probe, detected the frostbite and death statistics, took the changes in fluorescence into consideration and preliminarily established the meteorological index of spring frost of processing tomato. The results showed that: (1) the minimum temperature for all tomato seedlings from being frozen to death was ≤-5℃; (2) the super cooling point of tomato concentrated in the range of -3.1- -5.0℃, freezing point in the range of -2.4- -4.9℃; (3) the tomato with relatively small seedling age had a stronger cold-hardiness; (4) the land surface temperature index in light frost and heavy frost of tomato seedlings was -2℃ and -4℃, respectively.