Investigating of Radiation Absorption and Use Efficiency in Intercropping of Wheat and Canola

Abstract

Article InformationIn order to investigate RAE and RUE in alternative intercropping of wheat-canola, an experiment was carried out in a field located in Shirvan in 2013-2014. The experiment plan was arranged in factorial-RCBD with 3 replications. Treatments included 3 different ratio of density (for wheat T =250, T =300 1 2 2 and T =350; for canola C =80, C =100 and C =120 plant/m ) and 7 planting ratios (D0=canola showed that density of planting ratio and their interactions had significant effects on absorption efficiency, seed yield and RUE. In intercropping treatments, seed yield of canola was more than monoculture, but it was less than of wheat monoculture. The more seed yield of wheat was gained from canola.

Influence of Light Parameters on Photosynthetic Rate of Sorghum Based Intercropping System

“…This was due to the change in crop geometry in the sole and intercropping systems. These results were agreed well with the findings of [11]. The increase in LAI under 2:1 pattern was due to the favorable condition created by intercrops [12].…”

Radiation Dynamics on Crop Productivity in Different Cropping Systems

“…Furthermore, Liu et al [57] concluded that, in cereal intercrops, taller cereal crops with better canopy structure were found to have better solar radiation interception than the sole crop. Mohsen Abadi and Jahansooz [93] and Karimian et al [94] showed the effectiveness of radiation use in the intercropping of wheat and canola was greater than that of sole cropping because of the immediate association between canopy closing speed and radiation use in the system. Lindquist et al [95] proposed that loss of radiation could be reduced with better soil cover in intercropping, resulting in an increase in the absorption value of total radiation, rather than sole cropping that would result in increased radiation use efficiency and crop yield performance [94].…”

“…Mohsen Abadi and Jahansooz [93] and Karimian et al [94] showed the effectiveness of radiation use in the intercropping of wheat and canola was greater than that of sole cropping because of the immediate association between canopy closing speed and radiation use in the system. Lindquist et al [95] proposed that loss of radiation could be reduced with better soil cover in intercropping, resulting in an increase in the absorption value of total radiation, rather than sole cropping that would result in increased radiation use efficiency and crop yield performance [94]. Besides, due to the greater light interception within the canopy, plants with erect leaves showed significant yield benefit over those with horizontal leaves [63,96].…”