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三个超高产夏玉米品种的物质生产及光合特性
引用本文:杨今胜,王永军,张吉旺,刘鹏,李从锋,朱元刚,郝梦波,柳京国,李登海,董树亭. 三个超高产夏玉米品种的物质生产及光合特性[J]. 作物学报, 2011, 37(2): 355-361. DOI: 10.3724/SP.J.1006.2011.00355
作者姓名:杨今胜  王永军  张吉旺  刘鹏  李从锋  朱元刚  郝梦波  柳京国  李登海  董树亭
作者单位:1山东农业大学农学院 / 作物生物学国家重点实验室,山东泰安 271018;2山东登海种业股份有限公司 / 山东省玉米育种与栽培技术重点实验室,山东莱州 261448;3吉林省农业科学院环资中心,吉林长春 130033
基金项目:国家科技支撑计划项目,山东省泰山学者岗位,山东省良种产业化项目
摘    要:探明不同株高、穗位高具有超高产潜力(>15 000 kg hm-2)夏玉米品种的物质生产及光合特性,有利于密植增产。本研究在多年高产试验基础上(连续3年达15 000 kg hm-2以上),选用了登海661 (DH661,低秆低穗位)、登海701(DH701,中秆中穗位)和先玉335 (XY335,高秆高穗位) 3个具有超高产潜力的品种进行试验。在一般高产条件下,这3个品种间产量无显著差异,但干物质生产特性的模型解析表明,DH661的产量潜力高于DH701和XY335,其活跃生长期比XY335长近3周。开花后光合特征参数显示,DH661光合作用与光能利用效率明显较高,尤其是当XY335进入生理功能速衰期时(开花后28 d),DH661仍处于缓慢下降阶段,且具有较高的光合速率和光能利用效率,DH661的这一特性表明其具有更高的产量潜力。

关 键 词:超高产夏玉米  株高  穗位高  物质生产  光合特性
收稿时间:2010-03-25

Dry Matter Production and Photosynthesis Characteristics of Three Hybrids of Maize(Zea mavs L.)with Super-High-Yielding Potential
YANG Jin-Sheng,WANG Yong-Jun,ZHANG Ji-Wang,LIU Peng,LI Cong-Feng,ZHU Yuan-Gang,HAO Meng-Bo,LIU Jing-Guo,LI Deng-Hai,DONG Shu-Ting. Dry Matter Production and Photosynthesis Characteristics of Three Hybrids of Maize(Zea mavs L.)with Super-High-Yielding Potential[J]. Acta Agronomica Sinica, 2011, 37(2): 355-361. DOI: 10.3724/SP.J.1006.2011.00355
Authors:YANG Jin-Sheng  WANG Yong-Jun  ZHANG Ji-Wang  LIU Peng  LI Cong-Feng  ZHU Yuan-Gang  HAO Meng-Bo  LIU Jing-Guo  LI Deng-Hai  DONG Shu-Ting
Affiliation:1.State Key Laboratory of Crop Biology / College of Agronomy, Shandong Agricultural University, Tai’an 271018, China;2.Shandong Denghai Seed-breeding Co. Ltd. / Key Laboratory of Maize Breeding and Culture of Shandong Province, Laizhou 261448, China;3.Research Center of Agricultural Environment and Resources, Jilin Academy of Agriculture Science, Changchun 130033, China
Abstract:The plant height and ear height are the important factors affecting the grain yield in maize(Zea mays L.) which determined the planting density.Obviously,it is essential for high yield to explore the dry matter production and photosynthesis characteristics of super-high-yielding potential hybrid maize with different plant heights and ear heights.Therefore,a field experiment with 82 500 plant ha-1 was conducted to evaluate the three hybrids(Denghai 661,DH661,the low-plant height and low-ear height;Denghai 70...
Keywords:Super-high-yielding summer maize(Zea mays L.)  Plant height  Ear height  Dry matter production  Photosynthesis characteristics  
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