摘要
对冬茬黄瓜生育期间的温度、光照变化以及黄瓜生长发育动态和产量形成规律的观测结果表明：受低温弱光影响，冬茬黄瓜植株节间长，叶片分布稀疏，叶面积受人为落蔓作用，呈波动式变化；结果期间叶面积指数为１～２．４０。１２月中旬至元月中旬黄反果实长成时间平均２７．９天，日增长量仅４．８１ｇ，至４月上旬果实生长量为深冬的３位。投影寻踪回归（ＰＰＲ）分析表明，日照时数、日总辐射量和有效积温对冬茬黄瓜产量影响最大。
Effects of temperature and light on growth and yield of cucumber in winter was observed for 2 years. The results showed that under weak light and after artificial lowing stem into place, the leaf area of single plant of winter cucumber was fluctuated, the number of leaves was low and the nodes were long. The leaf area index was I～2.4 during fruiting season. The fruit of cucumber needed average of 27.9 days for growing from the middle of December to the middle of January. Average fruit weight was only 4.8lg/day and it was 3 times lower than in the first ten days of April. Projection pursuit regressive (PPR)analysis showed that the yield of winter cucumber was affected mainly by sunshine hours, amount of solar radiation and effective accumulative temperature. The influence of soil temperature was higher than the air temperature.
出处
《中国蔬菜》
北大核心
1996年第5期6-9,共4页
China Vegetables
关键词
黄瓜
温光条件
生长发育
产量
Cucumber, Temperature and illumination conditions, Growth, Yield
