连翘古县种源选育研究

Researches on Breeding of Forsythia Suspensa in Guxian Provenance

笔者介绍了从山西省古县选育出的连翘古县种源,树姿直立,萌生枝条粗壮,叶片中大,深绿色。花期集中,结实早。6年生～8年生树高1. 8 m,冠幅3. 6 m^2,单株青翘产量2. 1 kg,千果重1 803 g.连翘古县种源适应性强,基本没有病虫害,在山西省太原以南连翘适生区均可种植,具有广阔的发展前景。

Forsythia suspensa in Guxian provenance which was selected from Guxian in Shanxi province was introduced in this paper.Forsythia suspensa in Guxian provenance was upright which coppice shoot was strong,leaves were medium-sized and dark green.Its flo wering season concentrated and early bearing.Height of trees six-year-old to eight-year-old was 1.8 m and its crown width was 3.6 m^2.Yield per plant was 2.1 kg and thousand fruit weight was 1 803 g.The adaptability was high and there was almost no pests and diseases.Forsythia suspensa in Guxian provenance could be planted in the suitable area south of Taiyuan in Shanxi province and had broad development prospect.