摘要
根据湘、鄂、赣3省14站1994～2006年的物候观测资料，利用统计学以及因子间生物学关系，分析确定了我国南方早、晚稻孕穗期适宜温度和全生育期≥10oC积温指标。孕穗期适宜日平均温度和最低温度指标如下：早稻常规品种为25．7和22．3℃，杂交品种为26．5和23．3℃；晚稻常规品种为25．6和22．3℃，杂交品种为25．8和22．6℃。全生育期≥10℃积温指标如下：早稻早熟、中熟、晚熟品种分别为2512．1、2528．4．2651．3℃；晚稻早熟、中熟、晚熟品种分别为3126．2、3031．5、3335．2℃。上述指标均符合鉴定要求，可为南方地区水稻气象标准制定提供参考。
According to phenological observation data of fourteen stations in Hunan, Hubei and Jiangxi provinces from 1994 to 2006, indices of suitable temperature at the booting stage and accumulated temperature（≥ 10 ℃ ） during the whole growth period in early or late rice in the south of China were analyzed by statistics and biological relationship between factors. Indices of the optimum daily mean temperature and the minimum temperature at the booting stage were as follows ： Early convention rice variety was 25.7 and 22.3 ℃ respectively, hybrid variety was 26.5℃ and 23.3℃ respectively ; while late convention rice variety was 25.6 and 22.3 ℃ respectively, hybrid variety was 25.8 and 22.6 ℃ respectively. Indexes of accumulated temperature during the whole growth period were as follows： The early-maturing variety, the middle-maturing variety and the late-maturing variety of early rice was 2 512.1,2 528.4 and 2 651.3 ℃ respectively, while the early-maturing variety, the middle-matu- ring variety and the late-maturing variety of late rice was 3 126.2, 3 031.5 and 3 335.2℃ respectively. The above indexes all met the requirements of identification,which could provide reference for formulating the meteorological standard of rice in the south of China.
出处
《安徽农业科学》
CAS
北大核心
2008年第32期14014-14015,14219,共3页
Journal of Anhui Agricultural Sciences
基金
中国气象局新技术推广项目(CMATG2007M37)
关键词
水稻
孕穗期
适宜温度
积温
鉴定
Rice
Booting stage
Suitable temperature
Accumulated temperature
Identification
