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首页> 外文期刊>Acta Horticulturae >Floral biology and breeding system in Cardiocrinum giganteum (Liliaceae), a perennial bulbiferous herb in Yunnan Province in China.
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Floral biology and breeding system in Cardiocrinum giganteum (Liliaceae), a perennial bulbiferous herb in Yunnan Province in China.

机译：中国云南多年生的球根草本植物心形紫花菊的花生物学和育种系统。

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摘要

Giant lily (Cardiocrinum giganteum) is a perennial bulbiferous herb of Liliaceae and an endemic species in the eastern Himalayan region, which has become one of the new flower crops because of its high ornamental value. The floral biology and breeding characteristics of C. giganteum were studied by monitoring floral characteristics, duration of flowering, phenology, flowering behavior, outcrossing index (OCI), pollen-ovule ratio (P/O), pollen viability, stigma receptivity and fruit sets under a series pollination treatment. The result showed that flowering occurred from early May to early July and the mean duration of flowering was 16 days per inflorescence containing 6 to 19 flowers, and every flower has a life span of 7-11 days. The flowers were bisexual, with dichogamy and spatial separation. However, some anthers of a small number of flowers were longer than or equal to the stigma, which were suitable for self-pollination. The flowers were protandrous; the pistils matured in the day of floral opening. The pollen viability peaked around 75% after the pollen dispersed in 2 days, and its stigma had peroxidase activity from the third day after the anther loosing pollen until the end of flowering. The fruit setting rate of natural pollination was as high as 95%, that of artificial self-pollination 57.5%, and that of artificial xenogamy was as high as 100%, suggesting that C. giganteum is self-compatible. According to the artificial pollination experiments, OCI and P/O tests, the breeding system of C. giganteum was outcross and self-compatible, which needed pollinators.
机译：巨型百合（Cardiocrinum giganteum）是百合科多年生的球根草本植物，是喜马拉雅东部地区的特有物种，由于其极高的观赏价值，已成为一种新的花卉作物。通过监测花卉特征，开花时间，物候，开花行为，异交指数（OCI），花粉胚珠比（P / O），花粉生存力，柱头亲和力和果实结实来研究C. giganteum的花卉生物学和育种特性。经过一系列的授粉处理结果表明，开花始于5月初至7月初，平均开花时间为每花序16天，含有6至19朵花，每朵花的寿命为7-11天。花是双性恋的，有双歧和空间分隔。但是，一些花药的一些花药长于或等于柱头，适合自花授粉。花是前花的;花开的那天雌蕊成熟。花粉在两天内散布后，花粉活力达到峰值，约为75％，从花药疏散花粉后的第三天到开花结束，其柱头具有过氧化物酶活性。天然授粉的坐果率高达95％，人工自花授粉的坐果率高达57.5％，人工异花授粉的坐果率高达100％，这表明硕大C. giganteum具有自交性。根据人工授粉实验，OCI和P / O测试，巨型梭菌的育种系统是异质的并且是自相容的，这需要传粉媒介。

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