1965—2022年六安市再生稻安全生长期时空变化  

Temporal and Spatial Changes of Safe Growth Period of Regenerated Rice in Lu′an City from 1965 to 2022

作　　者：尚蓉霞 吴汉 SHANG Rongxia;WU Han(Wengdun Township Agricultural Comprehensive Service Station in Jin′an District of Lu′an City,Lu′an Anhui 237156;Anhui Pishihang Irrigation Area Irrigation Test Station,Lu′an Anhui 237158)

机构地区：[1]六安市金安区翁墩乡农业综合服务站,安徽六安237156 [2]安徽省淠史杭灌区灌溉试验总站,安徽六安237158

出　　处：《现代农业科技》2024年第16期23-26,共4页Modern Agricultural Science and Technology

摘　　要：利用六安市及周边9个气象站1965—2022年日平均气温数据计算再生稻安全播种期、安全齐穗期和安全生长期,以期为当地再生稻品种选择及安全播种提供参考。结果表明:六安市再生稻平均安全播种期为3月25日,日序呈现极显著的下降趋势,下降速率为0.15 d/a;平均安全齐穗期为9月9日,日序呈现上升趋势,但未达到显著水平;平均安全生长期为168 d,呈现显著的上升趋势,上升速率为0.22 d/a;在80%保证率下,安全生长期为154 d,宜选用生育期130 d左右的水稻品种。In order to provide reference for the selection and safe sowing of local regenerated rice varieties,this paper used the daily average temperature data from 9 meteorological stations in and around Lu′an City from 1965 to 2022,calculated the safe sowing period,safe heading period and safe growth period of regenerated rice.The results showed that the average safe sowing period for regenerated rice in Lu′an City was March 25th,and the daily sequence showed a very significant downward trend,with a decline rate of 0.15 days per year.The average safe heading period was September 9th,and the daily sequence showed an upward trend,but it had not reached a significant level.The average safe growth period was 168 days,showing a significant upward trend,with an upward rate of 0.22 days per year.At an 80%guarantee rate,the safe growth period was 154 days,and it is recommended to choose rice varieties with a growth period of about 130 days.

关 键 词：再生稻 安全播种期 安全齐穗期 安全生长期 安徽六安 1965—2022年 

分 类 号：S511[农业科学—作物学]