The microclimate of maize and bean crops in tropical America: a comparison between monocultures and polycultures planted at high and low density

Castro, Vilma; Isard, Scott A.; Irwin, Michael E.

doi:10.1016/0168-1923(91)90078-5

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…At the same time, the leaf wetness duration was usually shorter within the intercrop than within the pea monocrop. These results are consistent with the current understanding of the development of humidity within a canopy (Castro et al 1991). Air humidity is generally higher within a closed than within an open canopy because there are more transpiring leaves, and because humidity is trapped in a dense canopy.…”

Section: Discussionsupporting

confidence: 90%

Effect and underlying mechanisms of pea-cereal intercropping on the epidemic development of ascochyta blight

et al. 2009

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Field experiments were conducted in western France for two consecutive years to investigate the effect of pea-cereal intercropping on ascochyta blight, a major constraint of field pea production world-wide. Disease pressure was variable in the experiments. Intercropping had almost no effect on disease development on stipules regardless of disease pressure. In contrast, disease severity on pods and stems was substantially reduced in the pea-cereal intercrop compared to the pea monocrop when the epidemic was moderate to severe. Therefore, a pea-cereal intercrop could potentially limit direct yield loss and reduce the quantity of primary inoculum available for subsequent pea crops. Disease reduction was partially explained by a modification of the microclimate within the intercrop canopy, in particular, a reduction in leaf wetness duration during and after flowering. The effect of intercropping on splash dispersal of conidia was investigated under controlled conditions using a rainfall simulator. Total dispersal was reduced by 39 to 78% in pea-wheat canopies compared to pea canopies. These reductions were explained by a reduction in host plant density and a barrier or relay effect of the non-host plants.

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Section: Discussionsupporting

confidence: 90%

Effect and underlying mechanisms of pea-cereal intercropping on the epidemic development of ascochyta blight

et al. 2009

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“…Changes in root exudation patterns and rhizosphere interactions wrought by Columbo may have fostered enhanced systemic resistance in wheat (Doornbos et al., 2012; Olanrewaju et al., 2019). Certain morphological traits inherent to Columbo not measured here such as canopy density or leaf size could have affected the microclimate within the plot (Castro et al., 1991; Enikuomehin et al., 2010; Fernández‐Aparicio et al., 2010; Guo et al., 2021). Given that these suppressive effects were dependent on year, it is likely that weather may have played a role.…”

Section: Discussionmentioning

confidence: 99%

Wheat and faba bean intercropping and cultivar impacts on morphology, disease, and yield

De Long,

van Malland,

de Buck

et al. 2023

Agronomy Journal

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Modern agriculture relies heavily on synthetic fertilizer and pesticide inputs. Pressure is increasing to find alternatives that reduce such inputs. In comparison to monocultures, intercropping can reduce plant diseases and increase yield, thereby reducing inputs and maximizing land use efficiency. However, knowledge gaps remain regarding which crop and cultivar combinations maximize such benefits. Here, we grew two wheat (Triticum aestivum L.) and six faba bean (Vicia faba L.) cultivars in monoculture and intercrops over three seasons and measured plant morphology, disease prevalence and yield. Wheat ear development was slower in monocultures but varied by cultivar and year. Wheat cultivars senesced faster in monocultures versus certain faba bean intercrop combinations. In both wheat cultivars, Fusarium spp. severity was higher, while yellow rust (Puccinia striiformis f.sp. tritici Westend.) was lower in monocultures versus intercropped plots but varied by year and faba bean cultivar. Chocolate spot (Botrytis fabae Sardiña) in faba bean was higher in the cultivar ‘Louhi’ when grown in monoculture. Wheat cultivars yielded higher in monoculture versus intercropped plots. Faba bean yield was higher in monocultures but depended on wheat cultivar and year. Land equivalent ratios (LER) were not affected by interactions between cultivars or years but were always above one in intercropped plots. This indicates that it is always more efficient for yield to intercrop. Our results show that the benefits of intercropping with different wheat and faba bean cultivars varied, indicating that specific goals (i.e., disease suppression, yield) should be considered when selecting wheat‐faba bean cultivar combinations.This article is protected by copyright. All rights reserved

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“…Some may be better than others for particular applications, but no greenhouse type is considered the best [1]. Control of the micro-climate of the greenhouse is essential in order to encourage crop production considering the unstable nature of temperature, relative humidity, CO 2 concentration, and solar radiation [2][3][4][5][6][7][8]. The possibilities offered by greenhouse climate computers have solved the problems relating to the regulation and respect of climate instructions required by protected cultivation.…”

Section: Introductionmentioning

confidence: 99%

Modeling of the Internal Temperature for an Energy Saving Chinese Solar Greenhouse

Yau

WEI

Wang

et al. 2020

Eng. Technol. Appl. Sci. Res.

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The global rise in food demand requires urgent attention in the aspect of crop production. The microclimate of a greenhouse is a critical issue in agricultural practice, due to the variations of the external climatic conditions and their negative effect on crop production. In this work, a dynamic model of the internal air temperature of a Chinese solar greenhouse was designed in Matlab/Simulink environment. The dynamic model was designed with the use of energy balance equations. The weather data consisting of solar radiation, relative humidity, ambient temperature, and Photosynthetically Active Radiation (PAR) were acquired from meteorological stations. The results of the simulations show that the temperature of the internal air varies with weather conditions, location, number of covers, and the structure of the solar greenhouse.

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The microclimate of maize and bean crops in tropical America: a comparison between monocultures and polycultures planted at high and low density

Cited by 9 publications

References 11 publications

Effect and underlying mechanisms of pea-cereal intercropping on the epidemic development of ascochyta blight

Effect and underlying mechanisms of pea-cereal intercropping on the epidemic development of ascochyta blight

Wheat and faba bean intercropping and cultivar impacts on morphology, disease, and yield

Modeling of the Internal Temperature for an Energy Saving Chinese Solar Greenhouse

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