阔叶箬竹鞭段新芽萌发及生长特性OA

Rhizome segments of Indocalamus latifolius at the length of 10 cm are used as experimental materials for three treatments,i.e.,no fibrous roots retained,50％of fibrous roots retained,and all fibrous roots retained,and container seedling experiments are conducted to study sprouting and growth characteristics of the rhizome segments.The results show that when rhizome segments are buried in early April,sprouts can emerge above the soil within 90 days.These sprouts can either produce multiple new shoots or generate multiple new rhizomes at the base of the shoots.New bamboos develop from these shoots by late May.At 210 days after planting,the new rhizomes growing from the base of the shoots have a length in the range from approximately 10 cm to over 50 cm.Notably,a significant positive correlation is observed between the amount of retained fibrous roots on the rhizome segments and seedling emergence time:the more fibrous roots are preserved,the earlier the seedlings emerge and the greater their growth increment.In conclusion,retaining all fibrous roots on I.latifolius rhizome segments is more conducive to seedling growth in rhizome-based propagation.