{"title":"瓜种内种间嫁接砧木的选择","authors":"Dilek KANDEMİR","doi":"10.9755/ejfa.2023.3152","DOIUrl":null,"url":null,"abstract":"This study was conducted to select promising Turkish local Cucurbita rootstocks among intraspecific and interspecific hybrids for grafted melon seedling based on hybrid success rate, hypocotyl traits and graft compatibility. Rooting potentials, root system architecture and plant growth parameters of the rootstocks grafted with melon were also evaluated. Two lines of C. maxima (male parent) and eleven lines of C. moschata (female parent) at S5 generation were used. In addition, six winter squash lines were used as male parent and six pumpkin lines were used as female parent in intraspecific hybridization program. Intraspecific hybrid combinations had quite high number of seeds per fruit as compared to interspecific hybrid combinations. The highest number of seeds per fruit was obtained from HMO2 × OMO2 (359) and OMO5 × HMO8 (314) hybrid combinations. Hypocotyl lengths of all hybrid cucurbit rootstock combinations ranged from 32.96 mm (RS17) to 73.35 mm (RS8) and hypocotyl thicknesses ranged from 2.71 mm (RS2) to 3.55 mm (RS8). Graft success rates varied between 96.6 – 100% in winter squash and pumpkin intraspecific hybrids and between 87.1 – 100% in interspecific hybrids. Significant differences were seen in root architecture parameters (root length, root volume, mean root diameter, root surface area and root dry matter weight) of intraspecific and interspecies hybrid Cucurbita lines. The findings of the study indicated that the intraspecific and interspecific local cucurbit rootstock candidates developed within the rootstock breeding program showed promise as viable options for commercial use as rootstocks for grafted melon seedlings. Research about the effects of selected intraspecific and interspecific hybrid Cucurbita rootstock candidates on earliness, fruit quality and yield parameters of grafted melon will continue.
 Keywords: Cucurbita maxima; Cucurbita moschata; Rootstock breeding; Root system architecture; Melon
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 Keywords: Cucurbita maxima; Cucurbita moschata; Rootstock breeding; Root system architecture; Melon
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引用次数: 0
摘要
本研究根据杂交成功率、下胚轴性状和嫁接相容性,从种内和种间杂交中选择有前途的土耳其地方瓜砧木嫁接瓜苗。并对嫁接甜瓜的砧木的生根势、根系构型和植株生长参数进行了评价。在S5代选用了2个大花花(父本)系和11个花花花(母本)系。另外,用6个冬瓜品系作父本,6个南瓜品系作母本进行种内杂交。种内杂交组合比种间杂交组合具有更高的单果种子数。单果种子数以HMO2 × OMO2(359颗)和OMO5 × HMO8(314颗)组合最高。所有杂交瓜根组合的下胚轴长度为32.96 mm (RS17) ~ 73.35 mm (RS8),下胚轴厚度为2.71 mm (RS2) ~ 3.55 mm (RS8)。冬瓜和南瓜种内杂交嫁接成功率在96.6 ~ 100%之间,种间杂交嫁接成功率在87.1 ~ 100%之间。种内和种间杂交瓜系的根构型参数(根长、根体积、平均根径、根表面积和根干物质重)差异显著。研究结果表明,在砧木育种计划中培育的种内和种间的葫芦砧木候选品种有望作为嫁接甜瓜幼苗的商业砧木。今后将继续研究选育的种内和种间杂交瓜砧木候选品种对嫁接甜瓜的早熟性、果实品质和产量参数的影响。
关键词:大葫芦;Cucurbita moschata;根茎繁殖;根系结构;瓜# x0D;
The selection of intra-inter specific Cucurbita rootstocks for grafted melon seedlings
This study was conducted to select promising Turkish local Cucurbita rootstocks among intraspecific and interspecific hybrids for grafted melon seedling based on hybrid success rate, hypocotyl traits and graft compatibility. Rooting potentials, root system architecture and plant growth parameters of the rootstocks grafted with melon were also evaluated. Two lines of C. maxima (male parent) and eleven lines of C. moschata (female parent) at S5 generation were used. In addition, six winter squash lines were used as male parent and six pumpkin lines were used as female parent in intraspecific hybridization program. Intraspecific hybrid combinations had quite high number of seeds per fruit as compared to interspecific hybrid combinations. The highest number of seeds per fruit was obtained from HMO2 × OMO2 (359) and OMO5 × HMO8 (314) hybrid combinations. Hypocotyl lengths of all hybrid cucurbit rootstock combinations ranged from 32.96 mm (RS17) to 73.35 mm (RS8) and hypocotyl thicknesses ranged from 2.71 mm (RS2) to 3.55 mm (RS8). Graft success rates varied between 96.6 – 100% in winter squash and pumpkin intraspecific hybrids and between 87.1 – 100% in interspecific hybrids. Significant differences were seen in root architecture parameters (root length, root volume, mean root diameter, root surface area and root dry matter weight) of intraspecific and interspecies hybrid Cucurbita lines. The findings of the study indicated that the intraspecific and interspecific local cucurbit rootstock candidates developed within the rootstock breeding program showed promise as viable options for commercial use as rootstocks for grafted melon seedlings. Research about the effects of selected intraspecific and interspecific hybrid Cucurbita rootstock candidates on earliness, fruit quality and yield parameters of grafted melon will continue.
Keywords: Cucurbita maxima; Cucurbita moschata; Rootstock breeding; Root system architecture; Melon
期刊介绍:
The "Emirates Journal of Food and Agriculture [EJFA]" is a unique, peer-reviewed Journal of Food and Agriculture publishing basic and applied research articles in the field of agricultural and food sciences by the College of Food and Agriculture, United Arab Emirates University, United Arab Emirates.