Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China

Daytime temperature during seed filling is a crucial determinant of grain yield in pulse crops. Although there is much research about the effect of daytime temperature during seed filling on soybean yield in temperature-controlled chambers, the effect in the field has been little explored. Long-term...

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Main Authors: Haifeng Zheng, Liding Chen, Xiaozeng Han
Format: Article
Language:English
Published: Taylor & Francis Group 2009-01-01
Series:Plant Production Science
Subjects:
Online Access:http://dx.doi.org/10.1626/pps.12.526
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author Haifeng Zheng
Liding Chen
Xiaozeng Han
author_facet Haifeng Zheng
Liding Chen
Xiaozeng Han
author_sort Haifeng Zheng
collection DOAJ
description Daytime temperature during seed filling is a crucial determinant of grain yield in pulse crops. Although there is much research about the effect of daytime temperature during seed filling on soybean yield in temperature-controlled chambers, the effect in the field has been little explored. Long-term manipulative field experiments are important tools to provide accurate information for revealing the impacts of climate change on crop yields. Using the field records of a long-term fertilization experiment conducted in Northeast China, we analyzed the response of soybean yields to mean daily maximum temperature during seed filling over the period 1987−2007. The results showed that there was a clear positive response of soybean yields to increased mean daily maximum temperature during seed filling ranged from 20 to 24ºC. When compared with the average soybean yields over the last two decades, grain yields increased by 6−10% for each 1ºC increase in mean daily maximum temperature during seed filling and more than 22% of yield trends can be explained. These findings provide a direct evidence for the response of soybean yield to climate change in the field study.
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spelling doaj.art-6a5f5b96bf344d9298ac793e2acae4132022-12-21T23:31:47ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082009-01-0112452653210.1626/pps.12.52611644998Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast ChinaHaifeng Zheng0Liding Chen1Xiaozeng Han2State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesState Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesNational Field Research Station of Agroecosystem in Hailun; Northeast Institute of Geography and Agroecology, Chinese Academy of SciencesDaytime temperature during seed filling is a crucial determinant of grain yield in pulse crops. Although there is much research about the effect of daytime temperature during seed filling on soybean yield in temperature-controlled chambers, the effect in the field has been little explored. Long-term manipulative field experiments are important tools to provide accurate information for revealing the impacts of climate change on crop yields. Using the field records of a long-term fertilization experiment conducted in Northeast China, we analyzed the response of soybean yields to mean daily maximum temperature during seed filling over the period 1987−2007. The results showed that there was a clear positive response of soybean yields to increased mean daily maximum temperature during seed filling ranged from 20 to 24ºC. When compared with the average soybean yields over the last two decades, grain yields increased by 6−10% for each 1ºC increase in mean daily maximum temperature during seed filling and more than 22% of yield trends can be explained. These findings provide a direct evidence for the response of soybean yield to climate change in the field study.http://dx.doi.org/10.1626/pps.12.526AdaptationClimate changeDaytime temperatureFood securityLong-term experimentSeed fillingSoybeanYield
spellingShingle Haifeng Zheng
Liding Chen
Xiaozeng Han
Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China
Plant Production Science
Adaptation
Climate change
Daytime temperature
Food security
Long-term experiment
Seed filling
Soybean
Yield
title Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China
title_full Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China
title_fullStr Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China
title_full_unstemmed Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China
title_short Response of Soybean Yield to Daytime Temperature Change during Seed Filling: A Long-Term Field Study in Northeast China
title_sort response of soybean yield to daytime temperature change during seed filling a long term field study in northeast china
topic Adaptation
Climate change
Daytime temperature
Food security
Long-term experiment
Seed filling
Soybean
Yield
url http://dx.doi.org/10.1626/pps.12.526
work_keys_str_mv AT haifengzheng responseofsoybeanyieldtodaytimetemperaturechangeduringseedfillingalongtermfieldstudyinnortheastchina
AT lidingchen responseofsoybeanyieldtodaytimetemperaturechangeduringseedfillingalongtermfieldstudyinnortheastchina
AT xiaozenghan responseofsoybeanyieldtodaytimetemperaturechangeduringseedfillingalongtermfieldstudyinnortheastchina