Studies on Floral Syndrome and Breeding Habits of Iris pseudacorus

doi:10.11733/j.issn.1007-0435.2023.01.011

Acta Agrestia Sinica ›› 2023, Vol. 31 ›› Issue (1): 96-104.DOI: 10.11733/j.issn.1007-0435.2023.01.011

Studies on Floral Syndrome and Breeding Habits of Iris pseudacorus

FAN Shao-ru¹, FU Jia-hao¹, ZHUANG Qiu-rong¹, ZHANG Yong-xia¹, WANG Yin-jie¹, ZHANG Ting¹, LIU Qing-quan¹, TIAN Song-qing², YUAN Hai-yan¹

1. Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu Province 210014, China;
2. Suzhou Polytechnic Institute of Agriculture, Suzhou, Jiangsu Province 215008, China

Received:2022-06-22 Revised:2022-09-06 Online:2023-01-15 Published:2023-02-07

黄菖蒲花部特征及繁育习性研究

范少茹¹, 符佳豪¹, 庄秋荣¹, 张永侠¹, 王银杰¹, 张婷¹, 刘清泉¹, 田松青², 原海燕¹

1. 江苏省中国科学院植物研究所, 江苏南京 210014;
2. 苏州农业职业技术学院, 江苏苏州 215008

通讯作者: 原海燕, E-mail:yuanhaiyan416@163.com
作者简介:范少茹(1999-)，女，汉族，河南濮阳人，硕士研究生，主要从事遗传育种方向研究，E-mail:18639933653@163.com
基金资助:
中央财政林业科技推广示范基金项目(苏[2021]TG04)；江苏省水利科技项目(2021078)；江苏省省级作物种质资源库(JS-ZW-K04)资助

Abstract

Abstract: In this study,to provide a theoretical basis for the reproductive biology and hybrid breeding of I. pseudacorus, the floral characteristic,flowering process,pollen morphology and vitality,stigma receptivity,breeding habits,and flower-visiting insects of Iris pseudacorus L. were observed. The results showed that I. pseudacorus bloomed from April to May in Nanjing,and showed dichogamy;both pollen vitality and stigma receptivity were the strongest on the day of flowering,and then decreased;the stigma bent downward during flowering and the stamen was always shorter than the stigma;the pollen/ovule ratio was 380.4,the outcrossing index (OCI) was 5. The breeding habits of I. pseudacorus was mainly outcrossing,some self-compatibility and pollinators were required. There was pollen limitation in the natural state,and there was no apomixis phenomenon. Episyrphus balteatus were potential pollinators.

Key words: Iris pseudacorus, Floral syndrome, Flowering dynamics, Breeding habits, Flower visiting insects

摘要： 该研究旨在通过定点观察与人工授粉等方法，为黄菖蒲生殖生物学与杂交育种提供理论依据。对引种多年的黄菖蒲(Iris pseudacorus L.)的花器官特征、开花动态、花粉形态及活力、柱头可授性、繁育习性与访花昆虫进行了观察与研究，结果表明，黄菖蒲在南京地区为4月下—5月上开花，雌雄异熟；花粉活力与柱头可授性均为开花当天最强，随后下降；雌雄异位，开花过程中柱头向下弯曲，雄蕊始终短于柱头；花粉/胚珠比380.4，杂交指数为5。黄菖蒲的繁育习性为异交为主，部分自交亲和，需要传粉者，自然状态下存在花粉限制，不存在无融合生殖现象，黑纹食蚜蝇为潜在传粉者。

关键词: 黄菖蒲, 花部特征, 开花动态, 繁育习性, 访花昆虫

CLC Number:

Q312+.7

FAN Shao-ru, FU Jia-hao, ZHUANG Qiu-rong, ZHANG Yong-xia, WANG Yin-jie, ZHANG Ting, LIU Qing-quan, TIAN Song-qing, YUAN Hai-yan. Studies on Floral Syndrome and Breeding Habits of Iris pseudacorus[J]. Acta Agrestia Sinica, 2023, 31(1): 96-104.

范少茹, 符佳豪, 庄秋荣, 张永侠, 王银杰, 张婷, 刘清泉, 田松青, 原海燕. 黄菖蒲花部特征及繁育习性研究[J]. 草地学报, 2023, 31(1): 96-104.

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Studies on Floral Syndrome and Breeding Habits of Iris pseudacorus

黄菖蒲花部特征及繁育习性研究

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