早熟粮饲兼用高淀粉玉米新玉35号的选育研究

新玉35号是新疆农科院粮作所育出的早熟优质高产粮饲兼用高淀粉玉米新品种,2006年2月通过新疆农作物品种审定委员会审定。该品种在新疆北疆春播产量684.6~850 kg/667 m2,最高产量996.8 kg/667m2,生育期105 d。南疆复播产量582.9 kg/667 m2,比对照新玉9号增产9.3%,复播最高产量734.3 kg/667 m2,比对照增产15%,生育期89 d,与对照相当,所需≥10℃有效积温2 300℃。籽粒粗蛋白含量10.4%,达到国家饲料玉米一级标准,粗脂肪4.8%,赖氨酸含量0.32%,淀粉含量74.73%,达到国家高淀粉玉米二级标准。籽粒容重764 g/L,千粒重300 g,籽粒硬粒,金黄色。植株高达280 cm,生物产量高,保绿性好,可粮饲兼用,亦可加工淀粉,适合新疆南疆复播和北疆冷凉地区春播种植。

Study on Early Maturing Maize Xinyu 35 with High Starch Served as both Grain and Forage

Early maturing maize hybrid Xinyu35 with high starch content was developed by Institute of Grain Crops,Xinjiang Academy of Agricultural Sciences.It was released by Xinjiang Crops Variety Releasing Committee in 2006.It obtained the yield aroud 11 250～12 750 kg/hm2 for spring planting in the north of Xinjiang.The highest yield was 14 952 kg/hm2.The days from emergence to maturity are 105 days in spring planting.The yield is 8 743.5 kg/hm2 for summer planting as second crop after wheat harvesting in the south of Xinjiang and 9.3% higher than the check hybrid Xinyu 9.The highest yield was 11 014.5 kg/hm2 and 15% higher than the check.The days from emergence to maturity are 89 as second crop.The protein,starch contents and kernel density of maize Xinyu35 reach 10.4%,74.73% and 764 g/L respectively.Its 1 000-grain-weight is 300 g,the length of plant is 280 cm and can be served as both grain and forage. It is adaptable for planting in the south of Xinjiang as second crop and spring crop in cold place in the north of Xinjiang with effective temperature over 2 300℃ and temperature demand 10℃.