摘要
2010-2011年在青海高原不同海拔生态区对甜高粱进行品种适应性研究,结果显示,海拔对生育期、茎秆高度、单株鲜重、叶片数、茎叶产量、糖锤度有极显著影响。海拔1 850 m鲜重产量111 127～139 840 kg/hm2,籽粒成熟,产量4 154～7 609 kg/hm2;海拔1 990 m鲜重产量96 156～139 496 kg/hm2;海拔2 100 m鲜重产量70 124～109596 kg/hm2,早熟品种籽粒能成熟;海拔2 300 m鲜重产量71 528～102 690 kg/hm2,晚熟品种不能抽穗;海拔2 500m鲜重产量41 340～61 034 kg/hm2,早熟品种能进入抽穗期。茎秆糖锤度海拔2 300 m以下地区除晚熟品种较低外,可达15%以上,海拔2 500 m茎秆糖锤度只有6.52%～9.28%。九甜杂三品种综合表现突出,鲜重产量61 033.5～125 439.0 kg/hm2,糖锤度9.28%～19.61%。海拔1 850 m籽粒产量7 461 kg/hm2,是推广种植的首选品种;吉甜5号、超级放牧者综合表现良好,可为候选品种。
The adaptability of different cultivars of sweet sorghum （Sorghum bicolor） was evaluated in different altitudinal areas of the Qinghai plateau from 2010 to 2011. There was a significant effect of altitude on growth period, plant height, fresh weight per plant, leaf number, stem and leaf yield and brix. At 1 850 m altitude fresh weight ranged from 111 127 to 139 840 kg/hm2, and all varieties matured normally with kernel yields ranging from 4 154 to 7 609 kg/hm^2. At 1 990 m, altitude fresh weight ranged from 96 156 to 139 496 kg/hm^2 while at 2 100 m, it was from 70 124 to 109 596 kg/hm^2 and early varieties matured normally. At 2 300 m, al titude fresh weight ranged from 71 528 to 102 690 kg/hm^2 and late varieties could not ear normally while at 2 500 m, it was from 41 340 to 61 034 kg/hm^2 and early varieties eared normally. In areas at less than 2 300 m, stem brix was more than 15% except that of late varieties. At 2 500 m, stem brix ranged from 6. 52% to 9.28%. The variety Jiutianzasan was the first choice at five different altitudes because its fresh weight was from 61 033.5 to 125 439.0 kg/hm^2, its brix was from 9. 28% to 19. 61%, and its kernel yield was 7 461 kg/hm^2. At 1 850 m, Jitian No. 5 and Super herder could also be candidates because of their adaptability.
出处
《草业学报》
CSCD
北大核心
2013年第3期51-59,共9页
Acta Prataculturae Sinica
基金
青海省科技厅项目(2012-N-504)
西宁市科技局项目(2010-X-01)
青海省作物分子育种重点实验室资助
关键词
甜高粱
海拔
鲜重产量
糖锤度
适应性
sweet sorghum
altitude
fresh weight
bri
adaptability
