The influence of temperature on leaf development and growth in potatoes in controlled environments
作者:
W. W. KIRK,
B. MARSHALL,
期刊:
Annals of Applied Biology
(WILEY Available online 1992)
卷期:
Volume 120,
issue 3
页码: 511-525
ISSN:0003-4746
年代: 1992
DOI:10.1111/j.1744-7348.1992.tb04911.x
出版商: Blackwell Publishing Ltd
关键词: Potato;leaf development;leaf extension;temperature;thermal time
数据来源: WILEY
摘要:
SummaryThree controlled environment experiments were conducted at different temperatures to determine the relation between temperature and leaf development and growth in the potato (cv. Maris Piper). Developmental stages are defined for the appearance and duration of leaf extension in the potato and comparisons made with other temperate zone crops.The rate of leaf appearance was linear over the temperature range (9–25°C) and above 25°C there was no further increase in the rate. The temperature coefficient for the rate of appearance of leaves was 0.032 leaves (degree days)‐1using a base temperature of 0°C. The duration of extension of an individual leaf decreased with increase in temperature up to 25°C such that the thermal duration was constant at 170 degree days using a base temperature of 0°C for leaf positions 4–10 on the main stem. At higher leaf positions the thermal duration was similar or greater. The advantages and limitations of controlled environment work as a parallel to field experimentation are
点击下载:
PDF
(762KB)
返 回