The Response Mechanism and Optimum Matching of Maize to Light and Temperature Resources
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- 英文论文题名：The Response Mechanism and Optimum Matching of Maize to Light and Temperature Resources
- 论文作者：Peng Hou ; Yuee Liu ; Ruizhi Xie ; Keru Wang ; Bo Ming ; Guangzhou Liu ; Shaokun Li
- 英文论文作者：Peng Hou ; Yuee Liu ; Ruizhi Xie ; Keru Wang ; Bo Ming ; Guangzhou Liu ; Shaokun Li ; Institute of Crop Sciences ; Chinese Academy of Agricultural Sciences/Key Lab.of Crop Physiology and Ecology ; Ministry of Agriculture ; Maize research center ; Beijing Academy of Agriculture and Forestry Sciences
- 年：2016
- 作者机构：Institute of Crop Sciences,Chinese Academy of Agricultural Sciences/Key Lab.of Crop Physiology and Ecology,Ministry of Agriculture;Maize research center,Beijing Academy of Agriculture and Forestry Sciences;
- 英文论文关键词：Maize ; Light ; Temperature ; Response ; Optimum matching
- 会议召开时间：2016-10-26
- 会议录名称：2016年全国青年作物栽培与生理学术研讨会论文集
- 语种：英文
- 分类号：S513
- 学会代码：CSSC
- 会议名称：2016年全国青年作物栽培与生理学术研讨会
- 会议地点：中国山东泰安
- 主办单位：中国作物学会
- 学会名称：中国作物学会
- 页数：1
- 文件大小：75k
- 原文格式：O
- 会议级别：全国
摘要
Climate resources,especially light and temperaturehave great effects on the growth of maize.To examine the response of maize growth to the regional climate resources and achieve the optimum matching between maize growth and climate resources,multi-site experiments were conducted from 2007 to 2015 in the north spring maize region(NM),Huanghuaihai summer maize region(HM),northwest(NW) and southwest(SW) maize regions.We found that climatic factors such as photoperiod,solar radiation andtemperature greatly affected maize growth.Maize growth was found to be strongly influenced by locations.Maize yield in the four maize regions were significantly correlated with solar radiation and T range.From east to west,the optimum planting density increased significantly which was significantly correlated with the solar radiation.To match maize growth with solar condition,planting density should be further increased especially in the west regions of China.From north to south a non-linear positive relationshipexisted between maize yield and latitude.Variations in the HI and 1000-kernel weight were the main reasons for yield latitudinal trends.Maize adapted to different ecological regions by changing its growth durations from north to south.Vegetative growth durations was significantly affected by the temperatures,increasing by 1.25 d as a result of an increase of 1° in the north latitude.Compared with the vegetative growth duration,the reproductive growth duration decreased by 0.8d with 1° northward in the latitude.Temperature was the main reason for the variation of growth duration.With increasing latitude the GDD of vegetative growth duration increased significantly and GDD of reproductive growth duration decreased significantly.The prolonged photoperiod led to the increase of maize total leaf number and then resulted in the GDD requirement increasing.The utilization efficiency of ≥10℃ accumulated temperature for the whole year(UE10y) were highly correlated with latitude.The UE10 y increased by 1.3 and 1.4%for 1° increases in latitude moving northward for NM and HM,respectively.In NM,the variation in residual accumulated temperature was large across the experiment locations,ranging from 76 to 1655℃ degree days.Delaying harvest,optimizing sowing date,and plantingadapted cultivars were effective technical measures for making full use of temperature resource and increasing maize yield.
Climate resources,especially light and temperaturehave great effects on the growth of maize.To examine the response of maize growth to the regional climate resources and achieve the optimum matching between maize growth and climate resources,multi-site experiments were conducted from 2007 to 2015 in the north spring maize region(NM),Huanghuaihai summer maize region(HM),northwest(NW) and southwest(SW) maize regions.We found that climatic factors such as photoperiod,solar radiation andtemperature greatly affected maize growth.Maize growth was found to be strongly influenced by locations.Maize yield in the four maize regions were significantly correlated with solar radiation and T range.From east to west,the optimum planting density increased significantly which was significantly correlated with the solar radiation.To match maize growth with solar condition,planting density should be further increased especially in the west regions of China.From north to south a non-linear positive relationshipexisted between maize yield and latitude.Variations in the HI and 1000-kernel weight were the main reasons for yield latitudinal trends.Maize adapted to different ecological regions by changing its growth durations from north to south.Vegetative growth durations was significantly affected by the temperatures,increasing by 1.25 d as a result of an increase of 1° in the north latitude.Compared with the vegetative growth duration,the reproductive growth duration decreased by 0.8d with 1° northward in the latitude.Temperature was the main reason for the variation of growth duration.With increasing latitude the GDD of vegetative growth duration increased significantly and GDD of reproductive growth duration decreased significantly.The prolonged photoperiod led to the increase of maize total leaf number and then resulted in the GDD requirement increasing.The utilization efficiency of ≥10℃ accumulated temperature for the whole year(UE10y) were highly correlated with latitude.The UE10 y increased by 1.3 and 1.4%for 1° increases in latitude moving northward for NM and HM,respectively.In NM,the variation in residual accumulated temperature was large across the experiment locations,ranging from 76 to 1655℃ degree days.Delaying harvest,optimizing sowing date,and plantingadapted cultivars were effective technical measures for making full use of temperature resource and increasing maize yield.
Climate resources,especially light and temperaturehave great effects on the growth of maize.To examine the response of maize growth to the regional climate resources and achieve the optimum matching between maize growth and climate resources,multi-site experiments were conducted from 2007 to 2015 in the north spring maize region(NM),Huanghuaihai summer maize region(HM),northwest(NW) and southwest(SW) maize regions.We found that climatic factors such as photoperiod,solar radiation andtemperature greatly affected maize growth.Maize growth was found to be strongly influenced by locations.Maize yield in the four maize regions were significantly correlated with solar radiation and T range.From east to west,the optimum planting density increased significantly which was significantly correlated with the solar radiation.To match maize growth with solar condition,planting density should be further increased especially in the west regions of China.From north to south a non-linear positive relationshipexisted between maize yield and latitude.Variations in the HI and 1000-kernel weight were the main reasons for yield latitudinal trends.Maize adapted to different ecological regions by changing its growth durations from north to south.Vegetative growth durations was significantly affected by the temperatures,increasing by 1.25 d as a result of an increase of 1° in the north latitude.Compared with the vegetative growth duration,the reproductive growth duration decreased by 0.8d with 1° northward in the latitude.Temperature was the main reason for the variation of growth duration.With increasing latitude the GDD of vegetative growth duration increased significantly and GDD of reproductive growth duration decreased significantly.The prolonged photoperiod led to the increase of maize total leaf number and then resulted in the GDD requirement increasing.The utilization efficiency of ≥10℃ accumulated temperature for the whole year(UE10y) were highly correlated with latitude.The UE10 y increased by 1.3 and 1.4%for 1° increases in latitude moving northward for NM and HM,respectively.In NM,the variation in residual accumulated temperature was large across the experiment locations,ranging from 76 to 1655℃ degree days.Delaying harvest,optimizing sowing date,and plantingadapted cultivars were effective technical measures for making full use of temperature resource and increasing maize yield.
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