苗期短时高温条件下草莓干物质积累模型的修订

doi:10.3969/j.issn.1000-6362.2021.07.004

中国农业气象 ›› 2021, Vol. 42 ›› Issue (07): 572-582.doi: 10.3969/j.issn.1000-6362.2021.07.004

苗期短时高温条件下草莓干物质积累模型的修订

徐超，申梦吟，王明田，杨再强，韩玮，郑盛华

1.南京信息工程大学气象灾害预报预警与评估协同创新中心，南京 210044；2.南京信息工程大学滨江学院，无锡 214000；3．四川省气象台，成都 610091；4. 农业农村部西南山区农业环境重点实验室开放项目，成都 610091

收稿日期:2020-10-21 出版日期:2021-07-20 发布日期:2021-07-19
通讯作者: 王明田，研究员，研究方向为农业气象，E-mail：wangmt0514@163.com；杨再强，教授，研究方向为设施农业气象，E-mail：yzq@nuist.edu.cn
作者简介:徐超，E-mail: amxuchao@foxmail.com
基金资助:
国家重点研发计划项目(2019YFD1002202)；2020年度江苏省研究生科研与实践创新计划项目（KYCX20_0928）；四川省农业气象指标体系研究及应用项目(省重实验室2018-重点-05)；农业农村部西南山区农业环境重点实验室开放项目(AESMA-OPP-2019006) ；江苏省自然科学基金青年基金(BK20180810)

Modification of Strawberry Dry Matter Accumulation Model under Short-Term High Temperature Conditions at Seedling Stage

XU Chao, SHEN Meng-yin, WANG Ming-tian, YANG Zai-qiang, HAN Wei, ZHENG Sheng-hua

1. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China; 2. Binjiang College, Nanjing University of Information Science and Technology, Wuxi 214000; 3. Sichuan Meteorological Observatory, Chengdu 610091; 4. Key Laboratory of Agricultural Environment in Southwest Mountain Areas, Ministry of Agriculture and Rural Affairs, Chengdu 610091

Received:2020-10-21 Online:2021-07-20 Published:2021-07-19

摘要/Abstract

摘要： 以草莓品种“红颜”为试验材料，分别于2018年和2019年对温室草莓苗期进行不同高温（日最高温/日最低温分别为32/22℃、35/25℃、38/28℃和41/31℃）和不同胁迫天数（2d、5d、8d和11d）处理，以28/18℃为对照（CK），处理结束后将草莓移植到Venlo型玻璃温室进行正常栽培试验。以2018年数据定量分析高温和胁迫天数对温室草莓叶面积指数的影响，构建以生理发育时间为尺度的苗期高温对温室草莓叶面积指数影响模型，并结合已有的光合作用生产模型，构建光合驱动的草莓干物质生产的机理模型。以2019年试验数据对模型进行拟合验证。结果显示，构建的高温影响模型对温室草莓叶面积指数、最大光合速率和干物质生产的模拟值与实测值之间的决定系数（R²）分别为0.98、0.83 和0.91，均方根误差(RMSE)分别为0.04、1.50μmol·m⁻²·s⁻¹和1.38g·m^–2，相对误差（RE）分别为6.43%、13.17%和11.49%，说明所建模型较好地模拟了苗期高温对温室草莓叶面积变化和干物质生产的影响，可为温室草莓的高温环境管理和调控提供理论依据。

关键词: 草莓, 苗期短时高温, 生理发育时间, 叶面积, 最大光合速率, 干物质生产, 模拟模型

Abstract: High temperature is one of the common agricultural meteorological disasters, affecting the growth and development of crops. In order to study the effect of high temperature at the seedling stage on the leaf area index and dry matter production of strawberry in the facility, the strawberry variety " Benihoppe " was used as the experimental material.Different dynamic high temperatures (32/22℃, 35/25℃, 38/28℃ and 41/41℃; maximum daily temperature/minimum daily temperature) and different stress days (2d, 5d, 8d and 11d) were performed on the strawberry seedlings in greenhouses in 2018 and 2019, with 28/18℃ as a control. The seedlings were then transplanted to a Venlo glass greenhouse for normal cultivation experiment. The data of 2018 were used to quantitatively analyze the effects of high temperature and stress days on the leaf area index, maximum photosynthetic rate and dry matter production of strawberry seedlings. Models of strawberry leaf area index, maximum photosynthetic rate and dry matter production were then constructed based on the physiological development time. The models were finally verified with the experimental data of 2019. The results showed that the R2 between the simulated and measured values of strawberry leaf area index, maximum photosynthesis rate, and dry matter production model was 0.98, 0.83, and 0.91, respectively, the root mean square errors(RMSE) were 0.04, 1.50μmol·m⁻²·s⁻¹ and 1.38g·m^–2, and the relative errors(RE) were 6.43%, 13.17% and 11.49%, respectively. The established model was able to simulate the effects of extreme high temperature at seedling stage on strawberry leaf area index and dry matter production in greenhouses. The research results would provide a theoretical basis for the management and regulation of the high-temperature environment of strawberries in the greenhouse.

Key words: Strawberry, Short term high temperature at seedling stage, Physiological development time, Leaf area, Maximum photosynthetic rate, Dry matter production, Simulation model

徐超, 申梦吟, 王明田, 杨再强, 韩玮, 郑盛华. 苗期短时高温条件下草莓干物质积累模型的修订[J]. 中国农业气象, 2021, 42(07): 572-582.

XU Chao, SHEN Meng-yin, WANG Ming-tian, YANG Zai-qiang, HAN Wei, ZHENG Sheng-hua. Modification of Strawberry Dry Matter Accumulation Model under Short-Term High Temperature Conditions at Seedling Stage[J]. Chinese Journal of Agrometeorology, 2021, 42(07): 572-582.

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苗期短时高温条件下草莓干物质积累模型的修订

Modification of Strawberry Dry Matter Accumulation Model under Short-Term High Temperature Conditions at Seedling Stage

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