| 攀西地区水稻生育期的垂直变化特点及其积温效应 |
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| 引用本文： | 袁继超,杨世民,王明田,吴永诚,朱庆森,杨建昌. 攀西地区水稻生育期的垂直变化特点及其积温效应[J]. 作物学报, 2008, 34(2): 247-253. DOI: 10.3724/SP.J.1006.2008.00247 |
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| 作者姓名： | 袁继超 杨世民 王明田 吴永诚 朱庆森 杨建昌 |
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| 作者单位： | 1.扬州大学江苏省作物遗传生理重点实验室, 江苏扬州225009;2.四川农业大学农学院, 四川雅安625014;3.四川省气象局, 四川成都610000 |
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| 摘 要： | 为了研究水稻生育期的垂直变化特点及其积温效应, 本文选用杂交籼稻、常规籼稻和常规粳稻3个类型5个代表性品种为供试材料, 在攀西地区海拔540~1 800 m范围内进行了多点分期播种试验。结果表明, 供试材料从播种至抽穗所经历的天数(以下简称播抽期)及其所需要的有效积温在不同种植地点和播期之间有较大的不稳定性; 播抽期及其所需有效积温与海拔高度和纬度之间存在一定的数量关系, 播抽期和全生育期与种植地的海拔高度和纬度呈线性正相关, 播抽期所需有效积温与海拔高度和纬度呈二次函数关系; 播抽期和全生育期随着海拔和纬度的升高而延长, 播抽期所需有效积温随海拔的升高先增后减, 中海拔地区(1 200~1 300 m)需要的有效积温最多。
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| 关 键 词： | 水稻 生育期 海拔高度 有效积温 攀西地区 |
| 收稿时间： | 2007-04-03 |
| 修稿时间： | 2007-08-14 |
Changes in Growth Duration of Rice with Altitude and Its Temperature Accumulation Effect in Panxi Region, China |
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| YUAN Ji-Chao,YANG Shi-Min,WANG Ming-Tian,WU Yong-Cheng,ZHU Qing-Sen,YANG Jian-Chang. Changes in Growth Duration of Rice with Altitude and Its Temperature Accumulation Effect in Panxi Region, China[J]. Acta Agronomica Sinica, 2008, 34(2): 247-253. DOI: 10.3724/SP.J.1006.2008.00247 |
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| Authors: | YUAN Ji-Chao YANG Shi-Min WANG Ming-Tian WU Yong-Cheng ZHU Qing-Sen YANG Jian-Chang |
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| Affiliation: | 1.Key Laboratory of Crop Genetics & Physiology, Yangzhou University, Yangzhou 225009, Jiangsu;2.Agronomy College, Sichuan Agricultural University, Ya’an 625014, Sichuan;3.Meteorological Bureau of Sichuan Province, Chengdu 615000, Sichuan, China |
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| Abstract: | There have been a lot of studies on the influencing factors of rice growth duration and its predicting models in plain and hilly regions with a low altitude, but few studies involving the relationship between rice growth duration (or the effective temperature accumulation it needed) and altitude in mountain areas. In order to study the variation of rice growth duration with altitude and its temperature accumulation effect, a group of field experiments at 8 sites with different altitudes from 540 to 1 800 m in Panxi region, Sichuan province were conducted, in which, 3 sowing dates and 5 cultivars including hybrid indica rice, indica rice, and japonica rice were selected. The experimental results were as follows. The rice growth duration in days was not only different with the cultivars used, but also strongly influenced by therm-photo environment. The duration in days from sowing date to full heading period and the effective temperature accumulation it needed had largely instability at the sites selected. They were mainly and certainly related with altitude and latitude of the sites. A series of lineal regression equations of growth duration in days from sowing to full heading and the total growth duration (y) responding to latitude (x1) and altitude (x2) of the sites were founded. However, the relationship between the effective temperature accumulation needed (y) and the latitude (x1) and altitude (x2) obeyed a quadratic function. With the altitude ascending, the duration in days from sowing date to full heading period prolonged, while the effective temperature accumulation it needed increased firstly and decreased secondly. effective temperature accumulation was the highest in the middle altitude region which was about 1 200 m to 1 300 m. |
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| Keywords: | Rice Growth duration Altitude Effective temperature accumulation Panxi region |
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