薄壳山核桃不同优良无性系花期物候特征比较
[目地]通过对长汀楼子坝国有林场测试的 16个无性系的开花物候进行观察,以期为筛选出薄壳山核桃优良无性系组合配置提供参考依据。[方法]以 16个不同薄壳山核桃无性系为供试材料,开展花期物候、雄花散粉期与雌花可授期观察,比较不同无性系花期物候特征。[结果]供试的 16个薄壳山核桃不同无性系雄、雌花期存在差异,其中雄花的盛花天数为 5-12d,开放总天数为 12-23d;雌花的盛花天数为 3-9d,开放总天数为 9-19d.雄花散粉期天数为 5-20d,雌花可授期天数为 9-23d,相同无性系的可授期与散粉期相遇天数为 5-12d,不同无性系的可授期与散粉期相遇天数为20d.通过本次花期观测,初步了确定较优的无性系组合配置。
[Objective]Providing a reference for the selection of asexual line combinations of thin-shelled hickory(Cary a illinoinensis(Wangenh.)K.Koch)through the observations on the flowering phenology of 16 asexual lines tested in Ch angting Louziba State-owned Forest.[Methods]16 different thin-shelled hickory asexual lines were tested.Flowering pheno logy,timespan of pollen dispersal and stigma reception were carried out to compare the characteristics of flowering phenol ogy of different asexual lines.[Results]Differences in male and female flowering period were observed,among which the pollen dispersal days of male flower are 5-12d while the total number of blooming days is 12-23d.The receptive days of female flowers are 3-9d while the total blooming days is 9-19d.The number of days of pollination period of male flower s is 5-20d.The overlapping days between the pollination and reception period of the same asexual line is 20d.Through t he observation of this flowering period,we have preliminarily determined the better asexual line combination.
黄勇;丁珌;
福建省林业科学研究院 350012;福建省林业科学研究院 350012;
thin-shelled pecan flowering season male pollination period female pollination period
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