品種名稱：SMC575

      申請者：河南省現代(dai)種業有限(xian)公司

      育種者：北京市農林科學院玉米研究所、河南(nan)省(sheng)現代種業(ye)有限公司

      品種來源：京X159×京ZL37

      特征特性：東華北中(zhong)(zhong)早熟春(chun)玉(yu)米(mi)組出苗至成(cheng)熟128.2天(tian)(tian)，比(bi)對(dui)照晚熟0.8天(tian)(tian)。幼苗葉(xie)鞘(qiao)紫色，花(hua)絲淺(qian)紫色，花(hua)藥淺(qian)紫色，穎殼綠色。株型(xing)緊湊，株高301厘(li)米(mi)，穗位(wei)高117厘(li)米(mi)，成(cheng)株葉(xie)片(pian)數(shu)20片(pian)。果(guo)穗筒(tong)型(xing)，穗長20.9厘(li)米(mi)，穗行數(shu)14—18行，穗軸紅色，籽粒黃色，百粒重(zhong)32.9克(ke)。經鑒定，感(gan)(gan)大斑(ban)病(bing)(bing)，中(zhong)(zhong)抗(kang)莖腐病(bing)(bing)，感(gan)(gan)穗腐病(bing)(bing)，感(gan)(gan)灰斑(ban)病(bing)(bing)，中(zhong)(zhong)抗(kang)絲黑穗病(bing)(bing)，經測定，籽粒容重(zhong)760克(ke)/升，粗淀粉含(han)(han)量73.78%，粗蛋白含(han)(han)量9.54%，粗脂肪含(han)(han)量4.23%，賴(lai)氨(an)酸含(han)(han)量0.28%。

      產量表現：參加(jia)國(guo)家(jia)玉米品(pin)種聯合體試(shi)(shi)(shi)驗(yan)東華北中早(zao)熟春玉米組。2021年(nian)(nian)區域(yu)試(shi)(shi)(shi)驗(yan)初(chu)試(shi)(shi)(shi)平(ping)(ping)均畝(mu)(mu)產(chan)(chan)833千(qian)克(ke)，比(bi)(bi)對(dui)照(zhao)增產(chan)(chan)7.8%；2022年(nian)(nian)區域(yu)試(shi)(shi)(shi)驗(yan)復試(shi)(shi)(shi)平(ping)(ping)均畝(mu)(mu)產(chan)(chan)816千(qian)克(ke)，比(bi)(bi)對(dui)照(zhao)增產(chan)(chan)6.5%；兩年(nian)(nian)區域(yu)試(shi)(shi)(shi)驗(yan)平(ping)(ping)均畝(mu)(mu)產(chan)(chan)825千(qian)克(ke)，比(bi)(bi)對(dui)照(zhao)增產(chan)(chan)7.2%；2022年(nian)(nian)生產(chan)(chan)試(shi)(shi)(shi)驗(yan)，平(ping)(ping)均畝(mu)(mu)產(chan)(chan)820千(qian)克(ke)，比(bi)(bi)對(dui)照(zhao)增產(chan)(chan)7.5%。

      栽培技術要點：適宜播種期4月上(shang)旬(xun)至5月上(shang)旬(xun)，密度(du)4500株/畝(mu)左右，注意防治(zhi)大斑(ban)病(bing)(bing)、穗腐病(bing)(bing)、灰斑(ban)病(bing)(bing)等病(bing)(bing)害，大喇叭口(kou)期注意防治(zhi)玉(yu)米(mi)螟(ming)。

      審定意見：該(gai)品種(zhong)(zhong)符合國(guo)家玉米(mi)品種(zhong)(zhong)審定標(biao)準，通過審定。適(shi)宜(yi)在黑龍江省(sheng)(sheng)第二積溫帶，吉林(lin)省(sheng)(sheng)延邊(bian)州、白(bai)山市(shi)(shi)(shi)(shi)的(de)部(bu)(bu)(bu)分地(di)區(qu)，通化市(shi)(shi)(shi)(shi)、吉林(lin)市(shi)(shi)(shi)(shi)的(de)東(dong)部(bu)(bu)(bu)，內蒙古中(zhong)東(dong)部(bu)(bu)(bu)的(de)呼(hu)倫(lun)貝(bei)爾市(shi)(shi)(shi)(shi)扎(zha)(zha)蘭屯(tun)市(shi)(shi)(shi)(shi)南(nan)部(bu)(bu)(bu)、興安盟中(zhong)北(bei)部(bu)(bu)(bu)、通遼(liao)市(shi)(shi)(shi)(shi)扎(zha)(zha)魯特(te)旗(qi)中(zhong)部(bu)(bu)(bu)、赤(chi)峰市(shi)(shi)(shi)(shi)中(zhong)北(bei)部(bu)(bu)(bu)、烏蘭察布市(shi)(shi)(shi)(shi)前山、呼(hu)和浩特(te)市(shi)(shi)(shi)(shi)北(bei)部(bu)(bu)(bu)、包頭市(shi)(shi)(shi)(shi)北(bei)部(bu)(bu)(bu)早熟(shu)(shu)區(qu)，河北(bei)省(sheng)(sheng)張家口市(shi)(shi)(shi)(shi)壩下丘(qiu)陵及(ji)河川中(zhong)早熟(shu)(shu)區(qu)和承德(de)市(shi)(shi)(shi)(shi)中(zhong)南(nan)部(bu)(bu)(bu)中(zhong)早熟(shu)(shu)地(di)區(qu)，山西省(sheng)(sheng)中(zhong)北(bei)部(bu)(bu)(bu)大同市(shi)(shi)(shi)(shi)、朔州市(shi)(shi)(shi)(shi)、忻(xin)州市(shi)(shi)(shi)(shi)、呂梁市(shi)(shi)(shi)(shi)、太原市(shi)(shi)(shi)(shi)、陽泉市(shi)(shi)(shi)(shi)海拔900—1100米(mi)的(de)丘(qiu)陵地(di)區(qu)，寧夏(xia)南(nan)部(bu)(bu)(bu)山區(qu)海拔1800米(mi)以下地(di)區(qu)種(zhong)(zhong)植(zhi)。