• 中文核心期刊
  • CSCD来源期刊
  • 中国科技核心期刊
  • CA、CABI、ZR收录期刊

铁皮石斛新品种福斛1号的选育

Breeding a New Variety of Dendrobium officinale, Fuhu 1

  • 摘要:
      目的  选育适宜福建本地推广的优质高产铁皮石斛新品种,促进福建省铁皮石斛产业的可持续性发展。
      方法  以连城县冠豸山野生种L-2为母本自然授粉获得蒴果,从其后代实生苗中筛选出农艺性状好、茎条产量高等综合性状最优株系LF-9。利用组培技术无性扩繁LF-9株系种苗,以冠豸山野生种L-2为对照,经多年多点试验、品质检测、显微结构鉴定、分子鉴定,其品质优良,定名为福斛1号。
      结果  福斛1号2年区域试验平均鲜茎条产量4 777.5 kg·hm−2,比对照野生种L-2增产17.7%,增产达极显著水平。收获期调查福斛1号疫病发病率平均0.9%,比对照发病轻50.0%,黑斑病发病率平均7.3%,比对照发病轻29.8%。福斛1号石斛多糖含量51.8%,比对照提高8.8%;醇溶性浸出物含量15.3%,比对照提高82.1%。
      结论  福斛1号于2016年通过福建省农作物品种认定(闽认药2016001),其具有农艺性状好、产量高、品质优、抗逆性强等优良特性,可作为福建省推广种植的优良铁皮石斛新品种。

     

    Abstract:
      Objective  A new high-quality, high-yield Dendrobium officinale variety suitable for cultivation in Fujian was bred.
      Method  The capsules of D. officinale were obtained from natural pollination of L-2, a wild species found at Guanzhaishan in Liancheng County. From the offspring seedlings, LF-9 with the most desirable agronomic traits, growth potential, and stem yield was selected and rapidly propagated in tissue culture.
      Result  After years of experimental cultivations at various localities, LF-9 excelled L-2 (CK) in quality evaluation, by microstructure observation, and with molecular identification. It was named Fuhu 1 and rendered in two-year regional tests an average fresh stem yield of 4,77 7.5 kg·hm-2, which was 17.7% higher than that of CK. At harvest, merely 0.9% of the plants were infected by the blight disease. The infection rate was 50.0% lower than that of CK. For the black spot disease, the occurrence rate was 7.3%, which was 29.8% lower that of CK. On the contents of functional ingredients, Fuhu 1 contained 51.8% polysaccharides, i.e., 8.8% higher than CK, and 15.3% alcohol soluble, i.e., 82.1% higher than CK.
      Conclusion  D. officinale var. Fuhu 1 was certified by the Committee of Identifying Variety in Fujian Province in 2016 (Fujian Medicine No. 2016001). It was a superior variety with highly desirable agronomic properties including high yield, high quality, and strong disease resistance and considered a promising new D. officinale for commercial cultivation in Fujian.

     

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