不同春玉米品种在冀西北旱作地区高产及适应性分析  

Analysis on High Yield and Adaptability of Different Spring Maize Varieties in Arid Farming Area of Northwest Hebei Province

作　　者：蒋傲男 闫静琦 卢海博[1,2] 赵海超 黄智鸿[1,2] JIANG Ao-nan;YAN Jing-qi;LU Hai-bo;ZHAO Hai-chao;HUANG Zhi-hong(School of Agricultural and Forestry Science and Technology,Hebei North University,Zhangjiakou,Hebei 075000,China;Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food,Zhangjiakou,Hebei 075000,China)

机构地区：[1]河北北方学院农林科技学院,河北张家口075000 [2]河北省农产品食品质量安全分析检测重点实验室,河北张家口075000

出　　处：《河北北方学院学报（自然科学版）》2020年第9期29-34,50,共7页Journal of Hebei North University:Natural Science Edition

基　　金：河北省现代农业产业技术体系(玉米体系岗位专家)(HBCT2018020203);河北省科技厅项目(18226334D);张家口市科学技术局项目(1911012C)。

摘　　要：目的比较不同春玉米品种农艺性状及产量性状,为该区域玉米生产良种推广提供参考。方法以9个春玉米品种为研究对象,测定其农艺性状及产量性状等相关指标,并对产量及产量性状间进行通径分析。结果灌浆期京农科728、京农科828茎粗大于其他品种;京农科728、京农科828叶夹角显著小于其他品种;成熟期京农科728LAI最大;京农科728、京农科828穗行数、行粒数、穗重显著大于其他品种,容重显著低于其他品种,京农科728籽粒产量显著高于其他品种。通径分析显示,穗质量、穗粒数、百粒质量、穗行数、行粒数等均与产量成正相关,秃尖长为负相关(通径系数为-0.567)。结论京农科728、京农科828表现突出,在冀西北旱作区具有较好的丰产性及适应性,可在该地区进一步推广应用。Objective The agronomic and yield characters of different spring maize varieties were compared to provide reference for maize production promotion in this region.Methods In this paper,the agronomic characters,yield characters and other related indexes of 9 spring maize varieties commonly used in the cold and arid areas of northwest Hebei Province were measured,and the path analysis of yield and its components was carried out.Results The stems of Jingnongke 728 and Jingnongke 828 at the grouting stage were larger than other varieties.The leaf angle of Jingnongke 728 and Jingnongke 828 was significantly smaller than that of other varieties.In the mature stage,728LAI of Beijing agricultural science and technology was the largest.The grain number,grain number and panicle weight of jingnongke 728 and Jingnongke 828 were significantly higher than those of other varieties,and the bulk density was significantly lower than that of other varieties.The grain yield of Jingnongke 728 was significantly higher than that of other varieties.Path analysis showed that panicle weight,panicle grain number,hundred grain weight,panicle row number and row grain number were all positively correlated to yield,while bald tip length was negatively correlated(path coefficient was-0.567).Conclusion Jingnongke 728 and Jingnongke 828 have outstanding performance and good fertility and adaptability in the dry farming area of northwest Hebei Province,so they can be further popularized and applied in this area.

关 键 词：春玉米 农艺性状 产量 

分 类 号：S513[农业科学—作物学]