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首页> 外文期刊>Horticultura Brasileira >Sele??o de popula??es de abóbora menina brasileira portadoras do alelo “Bush” com alto potencial produtivo
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Sele??o de popula??es de abóbora menina brasileira portadoras do alelo “Bush” com alto potencial produtivo

机译：选择具有高生产潜力的“布什”等位基因的巴西女孩南瓜种群

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This study was performed to introduce the allele Bush of commercial cultivars with a bush growth habit into Cucurbita moschata accessions and select the best crossings for production potential and standard fruit shape “Menina Brasileira” through general combining ability (GCA) and specific combining ability (SCA). To determine GCA and SCA, a partial diallel analysis was performed. The parental group (group I) consisted of two cultivars containing the dwarfism bush gene, and the second group (Group II), formed by five accessions of UFV Vegetable Germplasm Bank, with high production potential and fruit shape “Menina Brasileira”. We evaluated: productivity (PROD), fruit shape (FORM), growth rate until the 50 th day after transplanting (CRESC), and length of the main stem on the 50 th day (COMP). Significant differences were noticed for CRESC and COMP only between GCA of parents belonging to group I, in which Zapallo stood out. For PROD and FORM, diallel analysis proved to be efficient in studying GCA effects. Cultivar Piramoita (group I) and accessions BGH-4360 and BGH-5253 (group II) showed positive values for GCA, suggesting that these parents possess a higher frequency of favorable alleles for these two traits. Significance in SCA effects was also verified, highlighting the crossing Piramoita x BGH-4360, for PROD, indicating that this combination is the most promising for breeding purposes.
机译：进行这项研究的目的是将具有灌木生长习性的商业品种等位基因布什引入到南瓜属种中，并通过一般结合能力（GCA）和比结合能力（SCA）为生产潜力和标准果实形状“ Menina Brasileira”选择最佳杂交）。为了确定GCA和SCA，进行了部分透析分析。亲本组（第一组）由两个包含矮化灌木基因的品种组成，第二组（第二组）由五株UFV蔬菜种质库组成，具有较高的生产潜力和果实形状为“ Menina Brasileira”。我们评估了：生产力（PROD），果实形状（FORM），移植后第50天的生长速率（CRESC）和第50天的主茎长度（COMP）。仅在属于第一组的父母的GCA之间发现CRESC和COMP有显着差异，其中Zapallo脱颖而出。对于PROD和FORM，二元分析可以有效地研究GCA效应。品种Piramoita（I组）和登录号BGH-4360和BGH-5253（II组）显示GCA阳性，表明这些亲本对于这两个性状拥有较高的有利等位基因频率。还验证了SCA效应的重要性，突出了PROD的杂交Piramoita x BGH-4360，表明该组合对于育种目的是最有希望的。

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