【摘要】 为筛选出适宜贵州地区种植的薏苡(Coix lacryma-jobi)品种(系),2014~2015年对11个薏苡品种(系)进行田间比较试验,系统测定并分析与动物生产性能相关的粗蛋白、粗纤维、Ca2+的含量及鲜草产量、干草产量。结果表明:Y81植株高大,茎叶幼嫩,再生能力强,生育期为190~192 d;兴仁小白壳植株矮小,生育期为160 d左右;Y81鲜草产量为86.48~94.21 t/hm2,对照兴仁小白壳为61.23~66.28 t/hm2,Y81比对照增产41.23%~42.14%;Y81干草产量为16.43~17.90 t/hm2,对照为14.08~15.25 t/hm2,增产16.67%~17.42%;Y81茎叶中的粗蛋白含量为14.94%;粗脂肪为4.47%。综合分析,Y81适合作青贮利用,此品种(系)在贵州地区具有推广价值。更多还原

【Abstract】 In order to select the suitabl e forage Coix lacryma-jobi varieties for planting in Guizhou, field comparisons of 11 forage forage C. lacryma-jobi varieties were carried out in 2014-2015. The characteristics including crude protein content, crude fiber content, Ca²⁺ content, fresh yield, dry yield were tested. Results showed that: Y81 had high plant, tender stem and leaves, strong regeneration capacity, and the growth period was between190 and 192 days. C. lacryma-jobi Xing Ren had small plant, and the growth period was about 160 days. The fresh grass yield of Y81 was 86.48-94.21 t/hm², and it 41.23%-42.14% more than C. lacryma-jobi Xing Ren species which was 61.23-66.28 t/hm². For dry grass yield, Y81 was 16.43-17.90 t/hm2, 16.67%-17.42% more than the control, which was 14.08-15.25 t/hm². The crude protein in the stem and leaves of Y81 was 14.94%, while that of the control was 4.47%. Y81 was suitable for forage cultivation and worthy of promotion.更多还原