种植密度对不同株型玉米冠层光能截获和产量的影响
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柏延文,杨永红,朱亚利,李红杰,薛吉全,张仁和
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Effect of planting density on light interception within canopy and grain yield of different plant types of maize
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Yan-Wen BAI,Yong-Hong YANG,Ya-Li ZHU,Hong-Jie LI,Ji-Quan XUE,Ren-He ZHANG
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表1 种植密度对不同株型玉米产量及其构成因子的影响
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Table 1 Effect of plant density on grain yield and components in different types of maize
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年份 Year | 品种 Hybrids | 密度 Density (×104 plants hm-2) | 穗数 Ears hm-2 | 穗粒数 No. ear-1 | 百粒重 100-kernels weight (g) | 籽粒产量 Grain yield (kg hm-2) | 2016 | 陕单609 | 4.5 | 44689±851 d | 589±11.2 a | 37.8±0.0 a | 9950±448 d | | Shaandan 609 | 6.0 | 57807±1002 c | 561±10.1 b | 35.4±0.1 b | 11483±1038 c | | | 7.5 | 74482±2658 b | 514±11.5 c | 33.8±0.3 c | 12940±885 b | | | 9.0 | 90713±3321 a | 486±11.6 d | 31.8±0.1 d | 14020±921 a | | 秦龙14 | 4.5 | 48802±1568 d | 553±14.5 a | 31.3±0.6 a | 8447±236 c | | Qinlong14 | 6.0 | 61142±1258 c | 528±11.4 b | 29.7±1.1 b | 9588±682 b | | | 7.5 | 74814±995 b | 492±11.2 c | 28.7±0.8 c | 10564±965 a | | | 9.0 | 90601±3584 a | 402±8.2 d | 26.8±1.1 d | 9761±689 b | | 陕单8806 | 4.5 | 46912±2214 d | 538±15.3 a | 30.8±1.5 a | 7774±398 c | | Shaandan 8806 | 6.0 | 60695±3654 c | 515±15.6 b | 29.5±0.1 b | 9221±991 a | | | 7.5 | 73591±2256 b | 441±7.8 c | 26.1±0.1 c | 8470±786 b | | | 9.0 | 88800±1502 a | 371±8.1 d | 24.3±0.0 d | 8006±683 c | | 差异来源Source of variation | | | | 密度 Density (D) | ** | ** | ** | ** | | 品种 Hybrids (H) | ns | ** | ** | ** | | 密度×品种 D×H | ns | ** | ** | ** | 2017 | 陕单609 | 4.5 | 47083±2523 d | 613±19.8 a | 35.7±0.8 a | 10304±1211 c | | Shaandan 609 | 6.0 | 59444±2216 c | 588±21.5 b | 33.6±1.1 b | 11744±923 b | | | 7.5 | 76389±3650 b | 547±11.1 c | 31.8±0.9 c | 13288±1065 a | | | 9.0 | 89361±4026 a | 502±10.6 d | 30.5±0.5 d | 13682±689 a | | 秦龙14 | 4.5 | 46750±2601 d | 574±10.3 a | 32.1±1.1 a | 8614±738 d | | Qinlong 14 | 6.0 | 60417±668 c | 528±9.6 b | 30.8±1.2 b | 9825±456 b | | | 7.5 | 74027±2789 b | 501±11.2 c | 29.3±0.5 c | 10867±669 a | | | 9.0 | 86806±1269 a | 410±12.3 d | 26.2±0.7 d | 9325±359 c | | 陕单8806 | 4.5 | 43639±754 d | 545±16.8 a | 31.5±1.1 a | 7492±775 d | | Shaandan 8806 | 6.0 | 61917±2105 c | 518±19.2 b | 30.6±0.4 b | 9814±486 a | | | 7.5 | 71639±1526 b | 455±9.3 c | 28.4±0.6 c | 9257±698 b | | | 9.0 | 82639±3058 a | 386±6.3 d | 25.8±0.0 d | 8230±668 c | | 差异来源 Source of variation | | | | 密度 Density (D) | ** | ** | ** | ** | | 品种 Hybrids (H) | * | ** | ** | ** | | 密度×品种 D×H | * | ** | ** | ** |
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