Effects of temperature and photoperiod on early growth and final number of tubers in potato (Solanum tuberosum L)

被引:117
作者
VanDam, J
Kooman, PL
Struik, PC
机构
[1] AGR UNIV WAGENINGEN, DEPT AGRON, NL-6709 RZ WAGENINGEN, NETHERLANDS
[2] AGR UNIV WAGENINGEN, DEPT THEORET PROD ECOL, NL-6708 PD WAGENINGEN, NETHERLANDS
关键词
tuber initiation; tuberisation; tuber growth rate; tuber bulking; dry matter partitioning;
D O I
10.1007/BF02358206
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A phytotron experiment with all combinations of two photoperiod (12 or 18 h) and four temperature (18/12. 22/16, 26/20 or 30/24 degrees C; 12 h/12 h) treatments was carried out to analyse quantitative effects on early tuber growth, dry-matter partitioning and number of tubers of two cultivars. Higher temperatures and longer photoperiod delayed the onset of expolinear tuber growth and the onset of linear tuber bulking. Higher temperatures also gave lower absolute tuber growth rates. Photoperiod did not affect absolute tuber growth rate at lower temperatures. Higher temperature and longer photoperiod gave lower relative rates of partitioning of dry matter to the tubers. Differences between treatments in numbers of tubers initiated were inconsistent. This quantitative analysis of the effects of temperature and photoperiod on characteristics of tuber growth should prove useful in potato modelling.
引用
收藏
页码:51 / 62
页数:12
相关论文
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