Dynamic control of photosynthetic photon flux for lettuce production in celss

被引：0

作者：

Chun, C ^{[1
]}

Mitchell, CA ^{[1
]}

机构：

[1] Purdue Univ, NASA, Specialized Ctr Res & Training Bioregenerat Life, W Lafayette, IN 47907 USA

来源：

INTERNATIONAL SYMPOSIUM ON PLANT PRODUCTION IN CLOSED ECOSYSTEMS - AUTOMATION, CULTURE, AND ENVIRONMENT | 1997年 / 440期

关键词：

bioregenerative life-support system; computer control; Lactuca sativa L; PPF;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A new dynamic control of photosynthetic photon flux (PPF) was tested using lettuce canopies growing in the Minitron II plant-growth/canopy gas-exchange system. Canopy photosynthetic rates (Pn) were measured in real time and fedback for further environment control. Pn can be manipulated by changing PPF, which is a good environmental parameter for dynamic control of crop production in a Controlled Ecological Life-Support Systems CELSS. Decision making that combines empirical mathematical models with rule sets developed from recent experimental data was tested. With comparable yield indices and potential for energy savings, dynamic control strategies will contribute greatly to the sustainability of space-deployed CELSS.

引用

页码：7 / 12

页数：6

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