{"title":"Testing different methods of grape seed germination","authors":"A. Perko, A. Ivančič, S. Vršič","doi":"10.5073/VITIS.2019.58.151-152","DOIUrl":null,"url":null,"abstract":"Introduction: The Vitis seeds generally have very low germination rates unless endodormancy has been overcome (ellis et al. 1983). Seed dormancy in grape is often attributed to a thick and tough seed coat that can be a mechanical barrier to germination (Conner 2008). In general, seed dormancy removal is achieved by cold stratification of seeds in a period of 3 to 4 months, although in many V. vinifera L. cultivars, this treatment results in only modest germination percentages (selim et al. 1981, ellis et. al. 1983). Other reasons for poor germination can be incomplete physiological maturity (not fully developed endosperm and embryo, when seeds are harvested too early), inappropriate germination technique and/or unfavourable weather conditions during vegetation. The rate and dynamics of seed germination varies considerably depending on the species. The germination rates of V. vinifera and V. labrusca L. are generally lower than 30 %, whereas the germination rates of V. rupestris Scheele, V. riparia Michx. and V. acerifolia Raf. are ranging from 40 % to almost 100 % (rombough 2002).","PeriodicalId":23613,"journal":{"name":"Vitis: Journal of Grapevine Research","volume":"5 1","pages":"151-152"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vitis: Journal of Grapevine Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5073/VITIS.2019.58.151-152","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: The Vitis seeds generally have very low germination rates unless endodormancy has been overcome (ellis et al. 1983). Seed dormancy in grape is often attributed to a thick and tough seed coat that can be a mechanical barrier to germination (Conner 2008). In general, seed dormancy removal is achieved by cold stratification of seeds in a period of 3 to 4 months, although in many V. vinifera L. cultivars, this treatment results in only modest germination percentages (selim et al. 1981, ellis et. al. 1983). Other reasons for poor germination can be incomplete physiological maturity (not fully developed endosperm and embryo, when seeds are harvested too early), inappropriate germination technique and/or unfavourable weather conditions during vegetation. The rate and dynamics of seed germination varies considerably depending on the species. The germination rates of V. vinifera and V. labrusca L. are generally lower than 30 %, whereas the germination rates of V. rupestris Scheele, V. riparia Michx. and V. acerifolia Raf. are ranging from 40 % to almost 100 % (rombough 2002).
简介:葡萄种子通常发芽率很低,除非克服了内休眠(ellis et al. 1983)。葡萄的种子休眠通常归因于厚而坚韧的种皮,它可以成为发芽的机械屏障(Conner 2008)。一般来说,通过在3至4个月的时间内对种子进行冷分层来消除种子休眠,尽管在许多葡萄品种中,这种处理只能产生适度的发芽率(selim et al. 1981, ellis et al. 1983)。发芽差的其他原因可能是生理成熟不完全(胚乳和胚胎未完全发育,当种子收获过早时),不适当的发芽技术和/或植被期不利的天气条件。种子萌发的速率和动态因物种而异。葡萄芽孢霉和labrusca L.的发芽率普遍低于30%,而紫芽孢霉、riparia Michx.的发芽率普遍低于30%。和荆芥。从40%到几乎100%不等(2002年)。