EFFECT OF TEMPERATURE ON THE GERMINATION OF SUNFLOWER (HELIANTHUS-ANNUUS L)

被引：0
|
作者：
MWALE, SS [1 ]
AZAMALI, SN [1 ]
CLARK, JA [1 ]
BRADLEY, RG [1 ]
CHATHA, MR [1 ]
机构：
[1] UNIV NOTTINGHAM,DEPT AGR & HORT,NOTTINGHAM LE12 5RD,ENGLAND
来源：
SEED SCIENCE AND TECHNOLOGY | 1994年 / 22卷 / 03期
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D O I：
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中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The germination characteristics of seeds of six varieties of sunflower (Helianthus annuus L.) were investigated at constant temperatures ranging from 1.5 to 49.0 degrees C. There were variations among the varieties in the way they responded to temperature. Relationships between germination rate (reciprocal of time to 50% germination) and temperature revealed that base temperature (T-b) ranged from 1.0 to 5.1 degrees C. The ranges for the optimum and maximum temperatures for germination were 34.0 to 36.7 degrees C and 45.5 to 50.9 degrees C, respectively. The practical significance of the cardinal temperatures and other germination characteristics of the seeds are discussed.
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页码：565 / 571
页数：7
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