摘要
22个柱花草品系3 a的比较试验结果表明,代号为81、55、24、43、12和89等6个品系干草产量及抗炭疽病能力的综合评价较好。在产量方面,比较突出的为81号,年平均干草产量6 950 kg/hm2(463 kg/亩),比对照CIAT184增产38.7%;在抗炭疽病方面,比较突出的有89号,其平均病级4.53级(对照CIAT184为4.60级);早花品系中只有62、83号相对在抗病性和产量方面较好;晚花品系55号,由于其优质、比对照耐寒等突出优点,有可能成为在高纬度地区推广的新品种。
s Three years of trials of 22 accessions of Stylosanthes guianenesis discovered that accessions of Stylosanthes guianenesis Nos.81, 55, 24, 43, 12 and 89 had better yield capacity and higher resistance to anthracnose. Of which, accession No.81 showed eminent yield with 6 950 kg/ha of dry grass (38.7% more than the control No.96); Accession No.89 had higher resistance to anthracnose with an average disease severity grade of 4.53 (the control 4.60). For the early-flower accessions, No.62 and No.83 had better resistance to anthracnose and higher yield; for the late-flower accessions, No.55 could be extended to the regions at higher latitudes due to its good quality and cold endurance.
出处
《热带农业科学》
2004年第4期14-18,52,共6页
Chinese Journal of Tropical Agriculture
关键词
柱花草
品系比较试验
产量
炭疽病
品种选育
Stylosanthes guianensis accessions yield anthracnose breeding comparative trial
