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Effect of planting pattern and plant density on growth, dry matter remobilization and grain yield of maize (Zae mays L.)
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Abstract: (3302 Views) |
To investigate the effect of planting pattern and plant density on some physiological and growth characteristics in corn single cross 704, a factorial experiment was conducted in a randomized complete blocks design in four replications in Islamic Azad University, Miandoab Branch. Different levels of treatments consisted of three levels of plant density (7, 9 and 11 plants per square meter) and two levels of planting pattern (one and double planting rows). The results of the present research showed that the highest grain yield with 14121 kilogram per hectare belonged to the density of 9 plants per square meter and planting pattern of double rows. The most number of ears per square meter was observed at the density of 11 plants per square meter which did not have a significant difference with the density of 9 plants per square meter. By increasing the density, one-thousand grain weight decreased; however, no significant difference was observed between densities of 7 and 9 plants per hectare. The highest number of seed per ear and ear length was obtained at 7 plants per square meter and two- rows tillage, which did not have significant difference with 9 plants per square density and two rows cultivations. The highest leaf area index and plant height belonged to the density of 11 plants per square meter and the two-row planting pattern. The highest and lowest chlorophyll index and remobilization percent were allocated to densities of 7 and 11 plants per square meter, respectively. The correlation coefficients between traits showed that the correlation between grain yield with grain number per ear, ear length, ear number, leaf area index and remobilization were positive and significant. According to the results of this research, the density of 9 plants per square meter and the two-row planting pattern for single cross 704 corn are recommended at Miandoab region. |
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| Keywords: Plant height, Yield components, Chlorophyll content and Leaf area. |
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Full-Text [PDF 785 kb]
(2964 Downloads)
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Type of Study: Applicable |
Subject:
Crop Physiology
Received: 2017/08/26 | Accepted: 2017/08/26 | Published: 2017/08/26
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