品種名稱：荃研588

      申請者：遼寧(ning)鐵研(yan)種業科技(ji)有(you)限公司(si)

      育種者：遼寧鐵研種(zhong)業科(ke)技有限公(gong)司

      品種來源：A1617×A1650

      特征特性：東(dong)華北中熟春玉米(mi)(mi)(mi)(mi)組出苗至成熟129.6天，比對照先玉335晚熟0.1天。幼(you)苗葉鞘紫(zi)(zi)色(se)(se)，花(hua)絲淺紫(zi)(zi)色(se)(se)，花(hua)藥淺紫(zi)(zi)色(se)(se)，穎(ying)殼綠色(se)(se)。株型半緊湊，株高317厘(li)米(mi)(mi)(mi)(mi)，穗(sui)位高121厘(li)米(mi)(mi)(mi)(mi)，成株葉片數20片。果穗(sui)長筒(tong)型，穗(sui)長20.5厘(li)米(mi)(mi)(mi)(mi)，穗(sui)行數16—18行，穗(sui)軸紅(hong)色(se)(se)，籽(zi)粒(li)黃色(se)(se)，籽(zi)粒(li)類型半馬齒，百粒(li)重37.7克。經鑒定，抗(kang)莖腐病，感(gan)(gan)大斑病，感(gan)(gan)穗(sui)腐病，感(gan)(gan)灰斑病，感(gan)(gan)絲黑穗(sui)病。經測(ce)定，籽(zi)粒(li)容(rong)重770克/升，粗(cu)淀(dian)粉(fen)含(han)量(liang)71.32%，粗(cu)蛋白含(han)量(liang)9.02%，粗(cu)脂肪含(han)量(liang)3.07%，賴(lai)氨酸含(han)量(liang)0.30%。

      產量表現：參(can)加國家玉米(mi)品種聯合體試(shi)(shi)(shi)驗東華北中熟春玉米(mi)組。2021年(nian)(nian)區(qu)域試(shi)(shi)(shi)驗初試(shi)(shi)(shi)平(ping)(ping)均畝(mu)產(chan)(chan)872千(qian)克(ke)，比(bi)對(dui)照增產(chan)(chan)5.4%；2022年(nian)(nian)區(qu)域試(shi)(shi)(shi)驗復試(shi)(shi)(shi)平(ping)(ping)均畝(mu)產(chan)(chan)884千(qian)克(ke)，比(bi)對(dui)照增產(chan)(chan)6.3%；兩年(nian)(nian)區(qu)域試(shi)(shi)(shi)驗平(ping)(ping)均畝(mu)產(chan)(chan)878千(qian)克(ke)，比(bi)對(dui)照增產(chan)(chan)5.9%。2022年(nian)(nian)生產(chan)(chan)試(shi)(shi)(shi)驗平(ping)(ping)均畝(mu)產(chan)(chan)814千(qian)克(ke)，比(bi)對(dui)照增產(chan)(chan)4.9%。

      栽培技術要點：適宜播種期4月下旬至5月上(shang)旬，密度4500株/畝左右，注意防(fang)治大斑(ban)病、穗(sui)(sui)腐病、絲黑穗(sui)(sui)病和(he)灰斑(ban)病。

      審定意見：該品種符合國(guo)家玉(yu)米品種審定(ding)標準，通過審定(ding)。適(shi)宜(yi)在遼(liao)(liao)寧省東(dong)(dong)部(bu)(bu)山區(qu)和(he)(he)(he)遼(liao)(liao)北(bei)(bei)部(bu)(bu)分地(di)(di)區(qu)，吉林省吉林市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、白城市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、通化(hua)市(shi)(shi)(shi)(shi)(shi)(shi)(shi)大(da)部(bu)(bu)分地(di)(di)區(qu)，遼(liao)(liao)源市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、長春市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、松原市(shi)(shi)(shi)(shi)(shi)(shi)(shi)部(bu)(bu)分地(di)(di)區(qu)，黑龍江省第一(yi)積溫(wen)帶，內蒙(meng)古烏蘭浩(hao)特市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、赤峰市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、通遼(liao)(liao)市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、呼和(he)(he)(he)浩(hao)特市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、包頭市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、巴彥(yan)淖(nao)爾市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、鄂爾多斯市(shi)(shi)(shi)(shi)(shi)(shi)(shi)等(deng)部(bu)(bu)分地(di)(di)區(qu)，河(he)北(bei)(bei)省張家口(kou)市(shi)(shi)(shi)(shi)(shi)(shi)(shi)壩下丘陵及河(he)川(chuan)中(zhong)熟區(qu)和(he)(he)(he)承德(de)市(shi)(shi)(shi)(shi)(shi)(shi)(shi)中(zhong)南部(bu)(bu)中(zhong)熟區(qu)，山西省北(bei)(bei)部(bu)(bu)大(da)同市(shi)(shi)(shi)(shi)(shi)(shi)(shi)、朔(shuo)州(zhou)市(shi)(shi)(shi)(shi)(shi)(shi)(shi)盆地(di)(di)區(qu)和(he)(he)(he)中(zhong)部(bu)(bu)及東(dong)(dong)南部(bu)(bu)丘陵區(qu)種植。