Analysis on the Phenophase Characteristics of Zhengdan958 and Xianyu335 in North of Huanghuaihai Region  

‘郑单958’与‘先玉335’黄淮海北部物候期特点分析（英文）

作　　者：陈淑萍 卜俊周 岳海旺 彭海成 宋聪敏 茜晓哲 张玉兰 谢俊良 

机构地区：[1]河北省农科院旱作农业研究所,河北省农作物抗旱研究重点实验室,河北衡水053000

出　　处：《Agricultural Science & Technology》2014年第4期585-588,708,共5页农业科学与技术（英文版）

基　　金：Supported by the Foundation of China Agricultural Research System for Maize Industry(CARS-02-48)~~

摘　　要：[Objective] The study is aimed to timely grasp the growth and develop- ment process of summer maize and comprehensively evaluate the impact of envi- ronmental factors on the growth and development of maize in north Huanguaihai re- gion. [Method] The phenophase, leaf unfolding rate, grain filling rate and yield char- acteristics of Zhengdan 958 and Xianyu 335 were analyzed at N 37°53′, E115°42′. [Result] The summer corn Zhengdan 958 and Xianyu335 emerged in 6 days after sowing with the growing period of 111 d, grain-filling stage lasting 66 days, and the leaf unfolding rate and grain filling rate were accelerated with the increase of tem- perature. In the last 6 d before harvest （October 5-11）, Zhengdan 958 and Xi- anyu335 contributed to the yield by 6.61% and 4.20%, respectively. The two crops a year cropping system made it hard for the summer maize to achieve maturing harvest in north Huanghuaihai region. [Conclusion] The maize production could be significantly improved through selecting early maturing varieties, early sowing, timely late harvest, ensuring maize effective accumulated temperature and sufficient grout- ing time after pollination.[目的]为实时掌握夏玉米在黄淮海北部生长发育进程，综合评价环境因素对玉米生长发育的影响。[方法]调查分析了‘郑单958’与‘先玉335’在北纬37°53’、东经115°42’的物候期、气象因素、叶片展开速率、籽粒灌浆速率与产量性状。[结果]夏播玉米‘郑单958’与先玉335播种后6d出苗，生育期间为111d．灌浆期持续66d．叶片展开速率和灌浆速率随温度升高而加速。收获前6天时间（10月5-11日），‘郑单958’与‘先玉335’产量贡献率分别达6．61％和4．20％。黄淮海区域属于一年两熟种植模式。黄淮海北部夏玉米一般不能达到完熟收获。[结论]选用中早熟品种，及早抢播、适时晚收，保证玉米充足的有效积温和授粉后充足的灌浆时间可以显著提高玉米产量。

关 键 词：Zhengdan958 Xianyu335 PHENOPHASE Leaf unfolding rate Filling rate 

分 类 号：S513[农业科学—作物学]