According to the demands of crop and livestock for sunlight illumination condition,4 zones,namely,dark light zone,weak light zone,moderate light zone and strong light zone were divided.

A zone of down-signal was found during using of a kind of UAV.

The open-circuit voltage of crystalline silicon solar cells at weak illumination;

Described in detail were the properties of the see-through Amorton solar cell, a-SiC translucent solar cell, solar cell at weak illumination, solar cell on opaque substrate, and solar cell on transparent substrate and conductive polymer film.

The main factors affecting the performance of amorphous silicon solar cells at weak illumination are analyzed in this paper.

Effects of low light on dry matter and mineral nutrient of flue-cured tobacco;

Effects of low light intensity on changes of soluble sugars,alkaloids and phytohormones in Catharanthus roseus seedlings;

Change of internal phytohormones contents in function leaves of tomato seedlings under low light stress;

Changes of chloroplast pigments of pepper seedlings under poor light stress,and relations between the changes and the poor-light tolerance of different pepper varieties;

Effects of continuously or discontinuously low temperature and poor light on photosynthesis in pepper leaves;

The physiological characteristics of five cucumber varieties were measured under the poor light conditions.

Photosynthesis adaptation of cucumber seedlings to suboptimal temperature and low light intensity stress;

) Britte were exposed to water deficit stress and low light intensity during flower bud differentiation and the levels of endogenous hormones and nucleic acids in their leaves were determined.

To study the effect of low light intensity on fruit setting and fruit quality, shading treatment was applied on limbs of seven year old sweet cherries ( Prunus avium L.