大田增温对夏玉米产量和品质的影响  

Effects of high field temperature on summer maize grain yield and quality

作　　者：张吉旺[1] 董树亭[1] 王空军[1] 胡昌浩[1] 刘鹏[1] 

机构地区：[1]山东农业大学农学院山东省作物生物学重点实验室,山东泰安271018

出　　处：《应用生态学报》2007年第1期52-56,共5页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究发展规划项目(2006CB101700);国家自然科学基金项目(30471025);山东农业大学青年科技创新基金项目(23400);山东省良种工程资助项目(2005-99-3).

摘　　要：研究了大田条件下增温(3℃)对夏玉米产量和品质的影响.结果表明:增温条件下玉米的籽粒产量显著降低,农大108(ND108)和掖单13号(YD13)分别减产46.6%和45.1%.增温也显著影响了玉米的籽粒品质,与对照相比,ND108和YD13的粗蛋白含量分别提高了11.6%和2.02%;粗脂肪含量分别降低了38.9%和9.6%;淀粉含量分别降低了7.0%和8.4%,且主要降低了支链淀粉的含量;赖氨酸含量则分别降低了58.9%和51.2%.A field study with two summer maize cultivars ND108 and YD13 showed that increased field temperature （3 ℃ ） at the stage from male tetrad to maturity had significant effects on their grain yield and quality, The grain yield of ND108 and YD13 decreased by 46.6% and 45.1% , grain crude protein content increased by 11.6% and 2.02%, ether extract content decreased by 38.9% and 9, 6%, starch （ mainly amylopection） content decreased by 7.0% and 8.4%, and lysine content decreased by 58.9% and 51.2%, respectively.

关 键 词：夏玉米 大田增温 产量 品质 

分 类 号：S513[农业科学—作物学]