广西植物2025，Vol.45Issue(5)：943-952,10.DOI:10.11931/guihaia.gxzw202404043
杭州地区茶竿竹开花生物学特性与花粉活力研究
Flowering biological characteristics and pollen vitality of Pseudosasa amabilis in Hangzhou region
摘要
Abstract
To provide a reference for further research into the reproductive biology of bamboo,Pseudosasa amabilis was used in this study,and the field observation method was used to observe the flowering forest phase,floral dynamic and the organ structure.The biological characteristics such as pollen viability,pollen germination rate,and stigma receptivity of P.amabilis were detected using the iodine-potassium iodide method,medium germination method,and benzidine-hydrogen peroxide method.The results were as follows:(1)The flowering period of P.amabilis was about 115 d,and the florescence was from late February to early April.After flowering,the old bamboo did not die,and in the same year,the new bamboo did not bloom,but bloomed synchronously with the old bamboo in the next year.(2)The pollen vitality and germination rate of P.amabilis were the highest when the anthems first appeared,with well-developed and good germination pollens accounting for 48.00%and 5.41%,respectively.The stigma had the best receptivity when the anthers released pollen.(3)P.amabilis was a mixed bamboo that bloomed multiple times with conical mixed inflorescences and open florets.In summary,P.amabilis does not die after flowering and can bloom continuously for many years,and it is a mixed inflorescence type.The main reason for the extremely low seed setting rate was the low germination rate of pollen.关键词
茶竿竹/开花特性/花器官发育/花粉活力/开花类型Key words
Pseudosasa amabilis/flowering characteristics/floral organ development/pollen vitality/flowering type分类
农业科技引用本文复制引用
王继业,岳晋军,袁金玲,陈家洪,何大敏,钟洪明..杭州地区茶竿竹开花生物学特性与花粉活力研究[J].广西植物,2025,45(5):943-952,10.基金项目
浙江省农业新品种选育重大专项(2021C02070-4). （2021C02070-4）
