Liu Binshuo, Li Hanbo, Chen Wei, Wang Ying, Chen Yubo, Wei Xiaowei
Jilin Jianzhu University, Changchun 130118, People's Republic of China.
Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, People's Republic of China.
R Soc Open Sci. 2024 Feb 14;11(2):231616. doi: 10.1098/rsos.231616. eCollection 2024 Feb.
Dormancy release pattern, sprout growth and later reproduction were studied among various tuber sizes of to determine effective methods to release dormancy and further to select suitable tuber size of this species in production. The results showed that medium tubers performed better during sprouting than large and small tubers under all pre-sprouting treatments. Pre-sprouting treatments at 25°C, 35°C, RT (room temperature) and -2°C were effective in relieving dormancy in medium tubers. Tiller number from medium tubers were significantly higher under 25°C, RT and 45°C than under 35°C and -2°C. Shoot and root mass from medium tubers were significantly higher under the 25°C, 35°C and RT than under other treatments. Tiller and tuber numbers both decreased with decreasing tuber size, as did tuber yield after three months of growth. Furthermore, leftover mass decreased with decreasing tuber mass and remained unchanged at sprouting and maturity periods. A significantly negative allometric correlation was found between plant mass and tuber mass from small tubers. However, a significantly positive allometric correlation was found between tuber size and tuber number from large tubers. In conclusion, medium tubers had a competitive advantage in sprouting, growth and reproduction.
研究了不同块茎大小的休眠解除模式、芽苗生长及后期繁殖情况，以确定解除休眠的有效方法，并进一步在生产中选择该物种合适的块茎大小。结果表明，在所有催芽处理下，中等大小的块茎在发芽期间的表现优于大、小块茎。在25°C、35°C、室温（RT）和 -2°C下进行催芽处理对解除中等大小块茎的休眠有效。中等大小块茎在25°C、室温及45°C下的分蘖数显著高于在35°C和 -2°C下的分蘖数。中等大小块茎在25°C、35°C和室温下的地上部和根部质量显著高于其他处理。分蘖数和块茎数均随块茎大小的减小而减少，生长三个月后的块茎产量也是如此。此外，剩余质量随块茎质量的减小而减少，在发芽期和成熟期保持不变。小块茎的植株质量与块茎质量之间存在显著的负异速生长相关性。然而，大块茎的块茎大小与块茎数之间存在显著的正异速生长相关性。总之，中等大小的块茎在发芽、生长和繁殖方面具有竞争优势。
