Fig 1.
Two different planting patterns(unit:cm).
The left picture represents the traditional planting pattern. The other one represents the new planting pattern.
Fig 2.
ac stands for plant height, ab stands for projection length, and bd stands for row projection width.
Fig 3.
The illumination diagram of the new planting pattern (unit:cm).
Fig 4.
The horizontal shadow distance at different times.
Fig 5.
The changes of chlorophyll fluorescence parameters in ear leaf of maize after anthesis with different plating patterns in 2016.
A, B and C represent the values of Fo, Fv/Fm and Fv/Fo respectively.
Fig 6.
The Fo, Fv/Fm and Fv/Fo of maize leaves at different leaf positions during mature stage with different plating patterns in 2016.(showed as A, B and C in turn).
Notes: SN: south-to-north orientation; EW: east-to-west orientation; SW20: northeast-to-southwest orientation, where the orientation was southwestern 20°; 65 + 65: 65 cm of both rows; 160 + 40: 40 cm of narrow row and 160 cm of wide row. Data are means ± SD (n = 5). Bars with different lower case letters indicate significant differences at P < 0.05.
Fig 7.
The changes of photosynthetic rate in ear leaf of maize after anthesis with different plating patterns in 2016.
Notes: SN: south-to-north orientation; EW: east-to-west orientation; SW20: northeast-to-southwest orientation, where the orientation was southwestern 20°; 65 + 65: 65 cm of both rows; 160 + 40: 40 cm of narrow row and 160 cm of wide row.
Table 1.
The photosynthetic rate of maize leaves at different leaf positions during mature stage with different plating patterns in 2016(μmol CO2 m-2 s-1).
Fig 8.
The changes of protective enzyme activity and MDA content in ear leaf of maize after anthesis with different plating patterns in 2017(showed as A, B,C and D in turn).
Notes: SN: south-to-north orientation; EW: east-to-west orientation; SW20: northeast-to-southwest orientation, where the orientation was southwestern 20°; 65 + 65: 65 cm of both rows; 160 + 40: 40 cm of narrow row and 160 cm of wide row.
Fig 9.
The protective enzyme activity and MDA content of maize leaves at different positions during mature stage with different plating patterns in 2017. (showed as A, B,C and D in turn).
Notes: SN: south-to-north orientation; EW: east-to-west orientation; SW20: northeast-to-southwest orientation, where the orientation was southwestern 20°; 65 + 65: 65 cm of both rows; 160 + 40: 40 cm of narrow row and 160 cm of wide row. Data are means ± SD (n = 5). Bars with different lower case letters indicate significant differences at P < 0.05.
Table 2.
The grain yield components of maize in 2017.