photosynthetic photon flux density Articles
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Morphological, anatomical, and physiological changes of orchardgrass leaves grown under fluctuating light regimes
The physiological and anatomical adaptability of pastures growing under trees in silvopastoral systems can alter the efficiency of conversion of energy to dry matter (DM). This study was conducted to determine the effects of different fluctuating light regimes (from 24 to 100% transmissivity) on leaf physiology, morphology, anatomy, and structure of orchardgrass (Dactylis glomerata L.) in a ...
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Variation in photosynthetic photon flux density within a tropical seasonal rain forest of Xishuangbanna, south-western China
The effects of canopy development, solar angle, and weather conditions on temporal variation in photosynthetic photon flux density (PPFD) at three heights within a tropical rain forest canopy in Xishuangbanna, China, were examined. PPFD was measured every second and stored as 10-min averages from 1 December 2002 to 30 November 2003. PPFD variability was examined at three different tempcral ...
By IOS Press
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Impact of Phakopsora Pachyrhizi infection on soybean leaf photosynthesis and radiation absorption
Yield loss in soybean [Glycine max (L.) Merr.] due to soybean rust (SBR) (caused by Phakospora pachyrhizi Syd. & P. Syd.) has been associated with reduced radiation interception and reduced radiation use efficiency by green leaf area. The objective of this study was to determine the mechanisms involved in the SBR-induced reductions in radiation use efficiency by quantifying the effect of SBR ...
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Are you lighting for optimum yields?
How do you achieve the highest yields with your lighting system? As we know, increasing light intensity up to a certain species-specific point, results in a corresponding increase in yield. And when light levels are not optimized for production, or the type of crop you are growing, you are going to have slower flowering, poor root development and plant structure, as well as reduced yields. There ...
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How to choose grow lights for your small farm
Whether you’re a grower wanting to extend your season in the hoop house or greenhouse, an urban rooftop farm, or a small indoor start-up—horticultural lighting gives you the flexibility and assurance that you will be growing the highest quality products year-round. With demand for local grown produce increasing, it’s not surprising to see many small growers expand into ...
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Maximize Yields with Smart Lighting Strategies: Using Metrics for a More Efficient Grow
There is a strong relationship between lighting and yield, as we know that with every 1% increase in light, there is a 1% increase in growth and yield. Measuring yield in your greenhouse is an important way to measure efficiencies and profitability, so you can better assess how your inputs affect overall yield and plant growth. In this article, we are going to overview the relationship ...
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