| Effect of plant density on dry matter accumulation and transfer in different varieties of maize under full coverage on double ridges |
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| DOI：10.7606/j.issn.1000-7601.2010.05.05 |
| Key Words: maize density dry matter accumulation dry matter distribution dry matter transfer |
| Author Name | Affiliation | | ZHANG Yongxiang | Gansu Provincial Agro-technology Extension Center, Lanzhou, Gansu 730020, China | | YANG Qifeng | Gansu Provincial Department of Agricutural & Animal Husbandry, Lanzhou, Gansu 730030, China | | NIU Junyi | Agronomy College, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHANG Lei | Yuzhong Agro-technology Extension Centre, Yuzhong, Gansu 730010, China | | NIU Fenju | Yuzhong Agro-technology Extension Centre, Yuzhong, Gansu 730010, China | | LI Deren | Yuzhong Agro-technology Extension Centre, Yuzhong, Gansu 730010, China |
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| Abstract: |
| Effect of plant density on accumulation and distribution of dry matter in two maize varieties Funong 1 and Wuke 2 under full coverage on double ridges was studied. The results showed that dynamics of dry matter accumulation of single plant and population were Logistic curves. In each stage, the accumulation of dry matter of single plant decreased but that of population increased when plant density increasing. The effects of plant density on dry matter accumulation and distribution were more and more significant after huge bell bottom stage and filling stage. Effects of plant density on dry matter movement ratio was not sensitive to stem and leaf, but the transformation ratio was increased when plant density increasing. |
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