略阳地区雪莲果物候期观测

采用实地观测的方法对略阳地区雪莲果的物候期及其生长动态规律进行了研究,为雪莲果的栽培推广提供理论依据。结果表明:雪莲果一般在3月下旬种植,发芽出苗期为5月2～8日,植株生长和分蘖期为7月19～21日,结薯(块根)期为8月17～23日,块根迅速膨大期为9月16～20日,块根成熟期为11月14～16日。雪莲果在不同生长时期动态生长趋势差异显著,其中株高和茎粗变化趋势大体相一致,而分蘖数则在前期增加较快,后期趋于稳定。

Investigation on the Phenophase of Smallanthus sanchifalius in Lueyang Area

The phenophase and dynamic growing rule were surveyed in field of Lueyang area and the results were obtained to provide evidence for the cultivation and promotion of Smallanthus sanchifalius.The results showed that Smallanthus sanchifalius was sprouted from last ten days of March,emergence of seeding was 2nd to 8th in May,growing and tillering was 19th to 21st in July,tuber(root) was 17th to 23rd in August,rapid enlargement of roots was 16th to 20th in September,and the roots mature was 14th to 16th in December.The dynamic growth trend of Smallanthus sanchifalius in different growth periods was significantly different,the changing trend of plant height and stem diameter was generally consistent,but the tiller was quickly increasing in earlier period,growing stably in later period.