Phenological development in spring cereals: Response to temperature and photoperiod under northern conditions

被引：29
|
作者：
Saarikko, RA [1 ]
Carter, TR [1 ]
机构：
[1] AGR RES CTR FINLAND,JOKIOINEN,FINLAND
来源：
EUROPEAN JOURNAL OF AGRONOMY | 1996年 / 5卷 / 1-2期
基金：
芬兰科学院;
关键词：
barley; modelling; oats; photothermal time; thermal time; threshold temperature; wheat;
D O I：
10.1016/S1161-0301(96)02009-6
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Phenological development of spring cereals was investigated using observations from several sites in Finland during the period 1970-1990. Different mathematical models which relate temperature to development rate were examined to predict the duration of phenological phases. A photoperiodic response of plant development before heading was also tested. For all phases the relationship between temperature and development was approximately linear. There was no significant response of plant development to photoperiod. This was explained by consistently long photoperiods in the observational material. Parameters for a linear model were derived from a regression analysis of mean development rate of each phase against mean temperature. However, a different response may occur under higher or lower temperatures or under shorter photoperiods than those experienced here.
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页码：59 / 70
页数：12
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