河西灌区玉米密植高产机械粒收品种筛选  

The selection of high yield maize cultivars suitable for dense planting and machine harvest in Hexi Irrigation District

作　　者：丁德芳[1] 柴宗文 徐喜俊 庄志扬[1] 袁政祥 孔融[3] 孙多鑫 王克如[4] 李少昆[4] 赵贵宾 DING De-fang;CHAI Zong-wen;XU Xi-jun;ZHUANG Zhi-yang;YUAN Zheng-xiang;KONG Rong;SUN Duo-xin;WANG Ke-ru;LI Shao-kun;ZHAO Gui-bin(Liangzhou District Agricultural Technology Extension Center,Wuwei,Gansu 733000,China;Gansu Agricultural Technology Extension Station,Lanzhou,Gansu 730020,China;Suzhou District Agricultural Technology Extension Center,Suzhou,Gansu 735000,China;Institute of Crop Science,Chinese Academy of Agricultural Sciences,Key Laboratory of Crop Physiology and Ecology,Ministry of Agriculture,Beijing 100081,China)

机构地区：[1]甘肃省武威市凉州区农业技术推广中心,甘肃武威733000 [2]甘肃省农业技术推广总站,甘肃兰州730020 [3]甘肃省酒泉市肃州区农业技术推广中心,甘肃肃州735000 [4]中国农业科学院作物科学研究所,北京100081

出　　处：《干旱地区农业研究》2019年第5期144-148,181,共6页Agricultural Research in the Arid Areas

基　　金：甘肃省农业科技创新与推广项目(GNCX-2016-14,GNKJ-2018-16);国家重点研发计划(2016YFD0300101);中国农业科学院农业科技创新工程、国家玉米产业技术体系项目(CARS-02-25)

摘　　要：为筛选适合河西灌区的机械粒收玉米品种,于2014、2015和2017年在凉州区和肃州区开展了6组适合机械粒收品种的筛选试验,共获得了72个品种122个品次的调查数据,分析结果表明:不同品种适宜机械粒收的特性存在较大差异:以籽粒含水率与单产2个因素按双向平均作图法进行分析,获得籽粒含水率低于平均值、单产高于平均值的品种(次)33个,占比27.0%;其中在2个点次以上表现出稳定性较好的品种有7个,包括迪卡517、登海618、先玉335、迪卡519、农华101、农华106和联创808;进一步以籽粒含水率与破碎率2个因素按双向平均作图法分析,筛选出破碎率低于平均值且籽粒含水率低于平均值的品种(次)有11个,包括破碎率低于5%的德单1002、中种8号、迪卡519和迪卡517(肃州区);破碎率在5%~8%之间的迪卡517(凉州区)、登海618、真金318、真金308、丹8201、M753和正德305。综合评价,推荐籽粒含水率低、耐破碎性能好和单产水平高的迪卡517、迪卡519和登海618为河西灌区适宜机械粒收品种。In order to screen maize cultivars suitable for machine grain harvest in Hexi irrigation district,in the years of 2014,2015 and 2017,six sets of maize cultivar selection tests suitable for machine grain harvest were carried out with total 122 cultivars(combination 122 items)in Liangzhou district and Suzhou district in Gansu province.The results showed that by using the two-way average graphic method to make figure according to average yield and grain moisture content,grain moisture content and yields of 33 cultivars accounting for 27.0%were lower and higher,respectively,than the averages.Seven cultivars including Dika 517,Denghai 618,Xianyu 335,Dika 519,Nonghua 101,Nonghua 106 and Lianchuang 808 performed better stability at 2 sites.The two-way average method was also used to make figure for further analysis according to grain-broken rate and grain moisture content,11 cultivars were selected with lower grain broken rate and grain moisture content than the averages,including Dedan 1002,Zhongzhong 8,Dika 519 and Dika 517(Suzhou district)with grain-broken rate of less than 5%,Dika 517(Liangzhou district),Denghai 618,Zhenjin 318,Zhenjin 308,Dan 8201,M753 and zhengde 305 with grain-broken rate between 5%and 8%.Comprehensive evaluation showed that it was recommended that Dika 517,Dika 519 and Denghai 618 with low grain moisture content,high grain-broken resistance,and high yield level were suitable for machine grain harvest in Hexi irrigation district.

关 键 词：机械粒收 玉米品种 籽粒含水率 破碎率 河西灌区 

分 类 号：S513[农业科学—作物学]