贵草1号多花黑麦草的选育

Breeding of Guicao 1 (Lolium multiflorum)

贵草1号多花黑麦草是贵州牧草种籽繁殖场和贵州省草业研究所以美国引进的阿倍德多花黑麦草为基础,从种子繁殖群体中选择典型的、优良的植株,混合播种,反复选择、改良而成的高产优质新品系,全生育期235d左右,品比试验鲜草产量达6710.29kg/667m2。贵州省区域试验平均鲜草产量达4963.6kg/667m2,初花期株高130～150cm,孕穗期株高80～120cm,分蘖能力强,生长速度和再生速度快,叶量大,叶片长25～37cm,叶宽1～1.5cm;抗病性强、草质柔嫩、牲畜适口性好、利用价值高、经济效益好,特别适宜黔中地区种植,是发展种草养畜业的优质牧草品种。

Guieao 1 （Lolium multiflorum） with quality and high grass yield was repeatedly selected from the reproductive population of Abeide （Lolium multiflorum） introduced by Guizhou Prataleultural Institute and Guizhou Reproductive Ground of Forage Seeds. The total growth period, plant height at first-flower stage, plant height at boot stage, leaf length and leaf width of Guieao 1 is 235 d, 130 to 150 em, 80 to 120 cm, 25 to 37 em and 1 to 1.5 em respectively. The fresh grass yield in the variety test was up to 6 710.29 kg/667m2 and the average fresh grass yield in Guizhou regional test was 4 963.6 kg/667m2. Guieao 1 with strong tiller ability, fast growth and regeneration, good disease resistance, tender grass, good palatability, higher utilization value and economic benefit can be suitably planted in the central regions of Guizhou.