| Effects of planting patterns with high density on chlorophyll, fluorescence and yield of summer maize |
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| DOI：10.7606/j.issn.1000-7601.2016.05.13 |
| Key Words: Maize thickness planting patterns chlorophyll fluorescence |
| Author Name | Affiliation | | SHAO Yang | Linxia Academy of Agricultural Sciences, Linxia, Gansu 731100, China
Henan Agricultural University, Zhengzhou, Henan 450002, China | | ZENG Jian-bin | Linxia Academy of Agricultural Sciences, Linxia, Gansu 731100, China | | GUO Yan-ping | Linxia Academy of Agricultural Sciences, Linxia, Gansu 731100, China | | GUO Qing-fan | Linxia Academy of Agricultural Sciences, Linxia, Gansu 731100, China | | WANG Tong-chao | Henan Agricultural University, Zhengzhou, Henan 450002, China | | WEI Li | Henan Agricultural University, Zhengzhou, Henan 450002, China |
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| Abstract: |
| To investigate the effects of the density and planting patterns on chlorophyll, fluorescence and yield of summer maize Zhengdan 958, a field experiment was carried out with different plant population densities (7.5×104, 9.0×104, 1.05×104 plants·hm-2) using a split-split plot design. The results showed that with the increase of planting density, LAI of extended leaves and chlorophyll content of ear leaf displayed a single peak variation curve. Under certain density, changes in planting pattern could increase the use efficiency of light energy. Under high density condition, the method of double strains cultivation with wide-narrow row spacing improved population structure, significantly increased photosynthetic area, enhanced group light energy utilization, advancing the production potential of corn under high density. |
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