13份柱花草品系生产性能比较

为筛选出性状优良的柱花草(Stylosanthes)品种,2011-2014年对13份柱花草品种(系)的株高、存活率、茎叶比、抗炭疽病能力、干草产量、种子千粒重和产量及养分进行测定分析,并采用隶属函数法对其综合生产性能进行评价。结果表明,13份柱花草品系初花期在9~(-1)1月;TPRC2001-84柱花草植株存活率最高(72.6%),TPRC 2001-81其次(56.6%);13份柱花草品系均较抗柱花草炭疽病;TPRC 2001-84柱花草年均干草产量最高(15 968kg·hm-2),TPRC2001-81和热研20号其次(12 206和12 724kg·hm-2);TPRC 2001-85柱花草种子产量最高(56.7kg·hm-2);热研21号柱花草粗蛋白含量最高(21.57%),热研20号和热研21号柱花草粗脂肪和磷含量较高,热研20号(CK)柱花草钙含量最高,TPRC 2001-85柱花草钾含量最高。TPRC 2001-84、热研21号、TPRC 2001-85和TPRC 2001~(-1)柱花草的综合生产性能较优,适于在热带亚热带地区推广种植。

Comparative study on the production performance of 13 Stylosanthes germplasms

In order to screen Stylosanthes varieties of excellent comprehensive properties,the adaptability of 1 3 Stylosanthes germplasms were studied by testing the height,survival rate,stem leaf ratio,anthrax disease, hay yield,seed yields,1000-grain weight,and nutrition components from 2011 to 2014;the production per-formances were compared and evaluated by membership function.The results showed that their initial blosso-ming stage was from September to November.The survival rate of TPRC2001-84 was the highest,up to 72.6%followed by TPRC 2001-81 with 56.6%.The 13 Stylosanthes germplasms were all resistant to anthracnose. Forage DM yield of TPRC 2001-84 was the highest,up to 15 968 kg?ha-1,followed by TPRC2001-81 and Reyan No.20,12 206,and 12 724 kg?ha-1,respectively.It was also found that the highest seed yield was in TPRC 2001-85,up to 56.7 kg?ha-1,and the highest crude protein content was in Reyan No.21 with up to 21.57%.The highest crude fat and phosphorus content was in Reyan No.20 and Reyan No.21.The highest cal-cium content was in Reyan No.21.The highest potassium content was in TPRC 2001-85.Therefore,among all the Stylosanthes germplasm,TPRC 2001-84,Reyan No.21,TPRC 2001-85,and TPRC 2001-1 had been found to have excellent production performance and were suitable for promotion and cultivation in the tropical area.