Enhanced light interception and light use efficiency explain overyielding in young tree communities

2021 ◽  
Author(s):  
Laura J. Williams ◽  
Ethan E. Butler ◽  
Jeannine Cavender‐Bares ◽  
Artur Stefanski ◽  
Karen E. Rice ◽  
...  
Keyword(s):  
Light Interception ◽  
Light Use Efficiency ◽  
Young Tree ◽  
Tree Communities ◽  
Use Efficiency

Variation in canopy structure, leaf area, light interception and light use efficiency among Eucalyptus clones

2020 ◽  
Vol 463 ◽  
pp. 118038 ◽  
Author(s):  
Eduardo M. de Mattos ◽  
Dan Binkley ◽  
Otavio C. Campoe ◽  
Clayton A. Alvares ◽  
Jose L. Stape
Keyword(s):  
Leaf Area ◽  
Canopy Structure ◽  
Light Interception ◽  
Light Use Efficiency ◽  
Use Efficiency

scholarly journals Adding Far-Red to Red-Blue Light-Emitting Diode Light Promotes Yield of Lettuce at Different Planting Densities

2021 ◽  
Vol 11 ◽  
Author(s):  
Wenqing Jin ◽  
Jorge Leigh Urbina ◽  
Ep Heuvelink ◽  
Leo F. M. Marcelis
Keyword(s):  
Leaf Area ◽  
Biomass Production ◽  
Plant Biomass ◽  
Stem Elongation ◽  
Incident Light ◽  
Dry Weight ◽  
Light Interception ◽  
Planting Density ◽  
Light Use Efficiency ◽  
Use Efficiency

The economic viability and energy use of vertical farms strongly depend on the efficiency of the use of light. Increasing far-red radiation (FR, 700–800 nm) relative to photosynthetically active radiation (PAR, 400–700 nm) may induce shade avoidance responses including stem elongation and leaf expansion, which would benefit light interception, and FR might even be photosynthetically active when used in combination with PAR. The aims of this study are to investigate the interaction between FR and planting density and to quantify the underlying components of the FR effects on growth. Lettuce (Lactuca sativa cv. Expertise RZ) was grown in a climate chamber under two FR treatments (0 or 52 μmol m–2 s–1) and three planting densities (23, 37, and 51 plants m–2). PAR of 89% red and 11% blue was kept at 218 μmol m–2 s–1. Adding FR increased plant dry weight after 4 weeks by 46–77% (largest effect at lowest planting density) and leaf area by 58–75% (largest effect at middle planting density). Radiation use efficiency (RUE: plant dry weight per unit of incident radiation, 400–800 nm) increased by 17–42% and incident light use efficiency (LUEinc: plant dry weight per unit of incident PAR, 400–700 nm) increased by 46–77% by adding FR; the largest FR effects were observed at the lowest planting density. Intercepted light use efficiency (LUEint: plant dry weight per unit of intercepted PAR) increased by adding FR (8–23%). Neither specific leaf area nor net leaf photosynthetic rate was influenced by FR. We conclude that supplemental FR increased plant biomass production mainly by faster leaf area expansion, which increased light interception. The effects of FR on plant dry weight are stronger at low than at high planting density. Additionally, an increased LUEint may contribute to the increased biomass production.

Assessment of Canopy Structure, Light Interception, and Light-use Efficiency of First Year Regrowth of Shrub Willow (Salix sp.)

2008 ◽  
Vol 1 (3-4) ◽  
pp. 229-238 ◽  
Author(s):  
Pradeep J. Tharakan ◽  
Timothy A. Volk ◽  
Christopher A. Nowak ◽  
Godfrey J. Ofezu
Keyword(s):  
Canopy Structure ◽  
Light Interception ◽  
First Year ◽  
Light Use Efficiency ◽  
Shrub Willow ◽  
Use Efficiency ◽  
Structure Light

scholarly journals Trade-off between light interception efficiency and light use efficiency: implications for species coexistence in one-sided light competition

2013 ◽  
Vol 102 (1) ◽  
pp. 167-175 ◽  
Author(s):  
Yusuke Onoda ◽  
Jema B. Saluñga ◽  
Kosuke Akutsu ◽  
Shin-ichiro Aiba ◽  
Tetsukazu Yahara ◽  
...  
Keyword(s):  
Species Coexistence ◽  
Light Interception ◽  
Light Use Efficiency ◽  
Light Competition ◽  
Trade Off ◽  
Use Efficiency

Growth and yield response of barley and chickpea to water stress under three environments in southeast Queensland. I. Light interception, crop growth and grain yield

1995 ◽  
Vol 46 (1) ◽  
pp. 17 ◽  
Author(s):  
Thomas ◽  
S Fukai
Keyword(s):  
Water Stress ◽  
Grain Yield ◽  
Crop Growth ◽  
Light Interception ◽  
Growth And Yield ◽  
Yield Response ◽  
Research Station ◽  
Light Use Efficiency ◽  
Early Maturing ◽  
Use Efficiency

Two barley cultivars (early-maturing Corvette and late-maturing Triumph) and one cultivar of chickpea (Amethyst at Redland Bay and Borwen at Hermitage), were grown in well-watered and water stress trials in three experiments to determine how the effect of water stress on growth and yield of these crops was modified by other environmental conditions, particularly temperature. Two experiments (experiments 1 and 2) were conducted at one location (Redland Bay) with two times of sowing (April and July), while experiment 3 (June sowing) was conducted at Hermitage Research Station, which had much lower temperatures in winter. In water stress trials, rainout shelters were used to exclude rain from plots from crop establishment to approximately maturity. In both well-watered and water stress conditions, the barley crop produced a lower yield when sown in April than in mid-winter, as grain filling occurred in late winter/early spring, when radiation and temperature were low. Chickpea in the irrigated control, however, produced the lowest yield in the July sowing at Redland Bay, because of the rapid increase in temperature in spring which hastened maturity. In water stress trials chickpea produced the lowest yield at Hermitage, as water stress severely reduced crop growth after flowering. Early-maturing Corvette produced a higher grain yield than late-maturing Triumph in one water stress trial (experiment 1), when difference in maturity time was 40 days, but not in others when the difference in maturity was less than 15 days. In most crops, development of water stress was slow during early stages of growth, and severe stress developed after maximum light interception was achieved. In these cases, water stress had a small effect on light interception but a large effect on light use efficiency (total dry matter produced per unit of solar radiation intercepted). However, for the chickpea sown in April, water stress developed during leaf area expansion, and severely reduced light interception with little adverse effect on light use efficiency. The results thus suggest that whether water stress affects light interception or light use efficiency depends on the timing of water stress in relation to the canopy development.

Sign in / Sign up

Export Citation Format

Share Document