[关键词]
[摘要]
玉米新品种强硕168是以N547为母本、泰548为父本选育而成的杂交种。2015 — 2016年参加辽宁省中晚熟组玉米区域试验,强硕168平均折合产量分别为12 918.6、14 198.5 kg/hm2,比对照品种郑单958分别增产9.7%、12.3%。2015 — 2016年参加河南省低密(67 500株/hm2)组玉米区域试验,强硕168平均折合产量分别为11 779.5、14 291.5 kg/hm2,比对照品种郑单958分别增产9.8%、12.4%。2015年参加国家东华北组、黄淮海组、西南组玉米区域试验,强硕168平均折合产量分别为14 210.5 、12 957.5、15 720.5 kg/hm2,比对照品种郑单958分别增产12.9%、10.7%、13.5%。 2016 — 2017年参加甘肃省中晚熟旱地组玉米区域试验,强硕168平均折合产量分别为13 235.9、15 912.5 kg/hm2,比对照品种先玉335分别增产8.7%、10.1%。夏播生育期133~145 d,株高274~276 cm,穗位高112~114 cm,穗长21.9~25.2 cm,穗粗4.3~4.7 cm,轴粗2.7~2.8 cm,秃顶长1.0~1.4 cm,穗行数17.1~17.9行,行粒数36.9~42.5粒,千粒重313.2~324.4 g,出籽率82.2%。春播生育期135 d,株高300 cm,穗位105 cm,穗长31~35 cm,穗行数16.0~20.0行,行粒数50粒左右,出籽率88.9%。籽粒含粗淀粉74.06%、粗蛋白9.45%、粗脂肪3.90%、赖氨酸0.38%,容重745 g/L。高抗倒伏,耐涝性强,抗病性强。适宜在全国玉米产区年积温2 800 ℃的山川地种植。
[Key word]
[Abstract]
Qiangshuo 168 is a new corn cultivar, bred from N547 as female parent and Tai548 as male parent. In 2015 — 2016, the average yield of Qiangshuo 168 was 12 918.6 kg/hm2 and 14 198.5 kg/hm2, respectively, 9.7% and 12.3% higher than the control Zhengdan 958 in the Regional Test of Middle and Late Maturity Corn in Liaoning Province. In 2015 — 2016, the average yield of Qiangshuo 168 was 11 779.5 kg/hm2 and 14 291.5 kg/hm2, respectively, 9.8% and 12.4% higher than the control Zhengdan 958 in the Corn Regional Test of Low Density(67 500 plants/hm2) Group in Henan Province. In 2015, The average yield of Qiangshuo 168 was 14 210.5, 12 957.5 and 15 720.5 kg/hm2, respectively, 12.9%, 10.7% and 13.5% higher than the control Zhengdan 95 in the National Regional Test of Corn in East North China, Huanghuaihai and Southwest China. In 2016 — 2017, the average yield of Qiangshuo 168 was 13 235.9 kg/hm2 and 15 912.5 kg/hm2, respectively, 8.7% and 10.1% higher than the control Xianyu 335 in the Regional Experiment of Middle and Late Maturing Dryland Corn in Gansu Province. The growth period of summer sowing is 133~145 days, plant height is 274~276 cm, ear height is 112~114 cm, ear length is 21.9~25.2 cm, ear diameter is 4.3~4.7 cm, axle diameter is 2.7~2.8 cm, bald top length is 1.0~1.4 cm, ear row number is 17.1~17.9 lines, row number is 36.9~42.5 grains, 1 000-grain weight is 313.2~324.4 g, and seed yield is 82.2%. Spring sowing growth period is 135 days, plant height is 300 cm, ear position is 105 cm, ear length is 31~35 cm, ear row number is 16.0~20.0 rows, row number is about 50 grains, seed yield is 88.9%. The grains contained crude starch is 74.06%, crude protein is 9.45%, crude fat is 3.90%, lysine is 0.38% and bulk density is 745 g/L. It has high lodging resistance, strong waterlogging resistance and disease resistance. It is suitable to be grown in mountain and river areas with accumulated annual temperature of 2 800 ℃.
[中图分类号]
S513
[基金项目]