摘要
本研究采用ＰＰＲ技术，对温室条件下连续观测的与黄瓜光合速率有关的１２个因子、上百组数据进行了分析。结果表明：各时期影响光合速率的主要因子为温度、二氧化碳和水分。深冬期晴天１３∶００～１５∶００时的计算机模拟分析显示：保持室内ＣＯ２浓度４．６×１０－４～５．０×１０－４，温度２０～２５℃，光合速率可达３０～３２μｍｏｌ·ｍ－２·ｓ－１。
In this paper using the Projection Pursuit Regression technique (PPR) twelve varinbles and one hundred eighty groups of data serially are analysed in greenhouse relative to the cucumber photosynthetic rate.The result showed that the main variables affacting the photosynthetic rate were temperature CO 2 density and water. Computer simulation analysis in 13∶00～15∶00 pm of deep winter sunny sky showed that keeping the CO 2 density indoor 4.6×10 -4 ～5.0×10 -4 , temperature 20￣25 ℃ and photosynthetic rate reaching 30￣32 μmol·m -2 ·s -1 was the optimization area.
出处
《新疆农业大学学报》
CAS
1996年第1期28-32,共5页
Journal of Xinjiang Agricultural University
关键词
投影寻踪
回归技术
温室
黄瓜
光合速率
projection pursuit
greenhouse cucumber
photosynthetic rate
