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Sowing density effect on common bean leaf area development

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Title Sowing density effect on common bean leaf area development
 
Creator Ricaurte Oyola, José Jaumer
Clavijo Michelangeli, Jose A.
Sinclair, Thomas R.
Rao, Idupulapati M.
Beebe, Stephen E.
 
Subject PHASEOLUS VULGARIS L.
PLANTING
TIMING
YIELD
GENOTYPES
SOWING
PLANTACIÓN
ELECCIÓN DE LA ÉPOCA
RENDIMIENTO
GENOTIPOS
SIEMBRA
 
Description Sowing density is a major management factor that affects growth and development of grain crops by modifying the canopy light environment and interplant competition for water and nutrients. While the effects of sowing density and plant architecture on static vegetative and reproductive growth traits have been explored previously in the common bean, few studies have focused on the impacts of sowing density on the dynamics of node addition and leaf area development. We present the results from two sites of field experiments where the effects of sowing densities (5, 10, 15, 20, 25 and 35 plants m-2) and genotypes with contrasting plant architectures (two each from growth habits I through III) on the dynamics of node addition and leaf area were assessed. Analysis of the phyllochron (°C node-1) indicated genotype and density effects (but no interaction) on the rate of node addition. While significant, these differences amounted to less than two days of growth at either site. In terms of leaf area development, analysis using a power function reflected large differences in the dynamics and final size of individual plant leaf area between the lower density (20 plants m-2) at the growth habit, but not genotype level. These differences in node addition and leaf development dynamics translated to marked differences between growth habits and sowing densities in estimated leaf area indices, and consequently, in the estimated fraction of intercepted light at lower densities.
Peer Review
 
Date 2016-07-25T18:07:12Z
2016-07-25T18:07:12Z
2016
 
Type Journal Article
 
Identifier Ricaurte, José Jaumer; Clavijo Michelangeli, Jose A.; Sinclair, Thomas R.; Rao, Idupulapati Madhusudana; Beebe, Stephen. 2016. Sowing density effect on common bean leaf area development. Crop Science . 56: 1-9.
https://hdl.handle.net/10568/76271
 
Language en
 
Format 56: 1-9
 
Publisher Crop Science Society of America
 
Source Crop Science