晋杂甜高粱品种在青海水、旱地的适应性

Adaptability of Jinza Sweet Sorghum Varieties in Qinghai Water and Drylands

为了探索晋杂甜高粱品种作为饲草作物在青海地区种植的可行性,进行了5个品种不同海拔生态区的引种试验。结果表明,供试品种在不同海拔生态区各性状差异显著,在海拔1 860 m水浇地的株高、单穴鲜质量、单穴干质量等农艺性状和草产量均明显高于海拔2 040 m的旱地,生长发育时间也较长;低海拔水浇地,晋杂2号表现较为突出,鲜草产量113 092 kg/hm2,干草产量29 406 kg/hm2,茎秆糖锤度15.94%;高海拔旱地,晋杂3号表现突出,鲜草产量达95 518 kg/hm2,干草产量达23 448 kg/hm2,茎秆糖锤度16.13%。晋杂2号和晋杂3号分别适宜在水地和旱地推广种植。

To explore the feasibility of Jinza sweet sorghum that grown in the Qinghai regionas forage crops, the paper carried on the experiment introduction of five varieties of different altitude elevation ecological zones. The results showed that all traits of tested varieties were significantly differences in different elevation regions. At an altitude of 1 860 m of irrigated land, height, fresh quality of single hole,dry quality of single hole and other agronomic traits and forage yield of sweet sorghum were significantly higher than dry land of 2 040 m altitude, and their growth time was longer. At the low-altitude irrigated land, the performance of Jinza 2 was more prominent, fresh yield was 113 092 kg/hm2, hay yield was 29 406 kg/hm2, stem brix was 15.94%. Jinza 3 was outstanding at the high-altitude dry land, fresh yield was 95 518 kg/hm2, hay yield was 23 448 kg/hm2, stem brix was 16.13%. Jinza 2 and Jinza 3 were suitable for planting and promotion in irrigated land and dry land.