{"title":"Tree testing and estimation of heritability using the pedunculate oak Quercus robur L. seed orchard in the Krotoszyn Forest District","authors":"W. Barzdajn, Maciej Bruder","doi":"10.2478/frp-2018-0031","DOIUrl":null,"url":null,"abstract":"Abstract In this paper, we present the results and analyse of tree height measurements, phenological observations (bud flushing), oak powdery mildew symptoms and multiple shoots of pedunculate oaks Quercus robur L. at the age of 12 years. The examined oaks belonged to 29 open pollination families. Family as well as individual heritability scored very highly for their respective indices. The calculated indices were 0.83 for tree height, 0.98 for flushing of buds, 0.53 for oak powdery mildew symptoms and 0.58 for the multi-stem index. Family seed orchards established using a completely randomized design are not a reliable substitute for progeny testing, because of the commonly small number of collected families.","PeriodicalId":35347,"journal":{"name":"USDA Forest Service - Research Papers PNW-RP","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"USDA Forest Service - Research Papers PNW-RP","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/frp-2018-0031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
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Abstract
Abstract In this paper, we present the results and analyse of tree height measurements, phenological observations (bud flushing), oak powdery mildew symptoms and multiple shoots of pedunculate oaks Quercus robur L. at the age of 12 years. The examined oaks belonged to 29 open pollination families. Family as well as individual heritability scored very highly for their respective indices. The calculated indices were 0.83 for tree height, 0.98 for flushing of buds, 0.53 for oak powdery mildew symptoms and 0.58 for the multi-stem index. Family seed orchards established using a completely randomized design are not a reliable substitute for progeny testing, because of the commonly small number of collected families.
摘要本文报道了有花序栎树(Quercus robur L.) 12年树龄的树高测量、物候观察(芽冲洗)、栎树白粉病症状和多芽的结果和分析。所研究的栎树属于29个开放授粉科。家族遗传力和个体遗传力在各自的指标上得分都很高。树高指数为0.83，花蕾冲洗指数为0.98，白粉病指数为0.53，多茎指数为0.58。采用完全随机设计建立的家庭种子园并不能可靠地替代后代试验，因为所收集的家庭数量通常很少。
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