马铃薯高级无性系选育中的非参数指标

IF 0.7 4区 农林科学 Q4 HORTICULTURE
A. D. Carvalho, G. Silva, A. Pereira, F. Q. Azevedo, C. F. Ragassi
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引用次数: 0

摘要

摘要本研究旨在检验马铃薯高级无性系选育和品种鉴定的非参数选择指标。试验于2016年和2017年作物季(5 - 8月)在Embrapa蔬菜试验田进行。17个马铃薯高级无性系和2个对照品种(阿加塔和阿斯特里克斯)进行了评价。采用随机完全区组设计,共4个重复。试验田为每行3米,每行10个块茎,每行间隔30厘米,每行间隔80厘米。种植后115天,对每块块茎进行采收、分类、计数和称重。进行方差分析,采用无权重指数、秩和指数、基因型-理想型距离指数等非参数选择指标。3个选择指标与最佳基因型的选择一致,且前2个指标较优,因为无重指标比其他指标更具限制性。在所选无性系中,F97-07-08和F183-08-01在三个指标上较为一致。此外,还通过基因型-理想型和秩和指标选择了F158-08-01和F18-09-03克隆。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nonparametric indexes in selecting advanced potato clones
ABSTRACT This study aimed to test nonparametric selection indexes for selection of advanced potato clones and identification of those that are likely to become cultivars. The experiments were carried out in 2016 and 2017 crop seasons, from May to August, in the experimental field of Embrapa Vegetables. Seventeen advanced potato clones and two check cultivars (Agata and Asterix) were evaluated. A randomized complete block design with four replications was used. Experimental plots consisted of a 3 m row, with 10 tubers spaced 30 cm apart within and 80 cm between rows. At 115 days after planting, tubers of each plot were harvested, classified, counted and weighed. Analysis of variance was performed and the following nonparametric selection indexes were applied: weight-free index, sum of ranks index and distance of the genotype-ideotype index. The three selection indexes coincided with the choice of the best genotypes, with the first two being superior, because the weight-free index was more restrictive than the other indexes. Among the selected clones, F97-07-08 and F183-08-01 stood out for being coincident in the three indexes. In addition to these, clones F158-08-01 and F18-09-03 were also selected by the indexes of the genotype-ideotype and sum of ranks.
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来源期刊
Horticultura Brasileira
Horticultura Brasileira 农林科学-园艺
CiteScore
1.40
自引率
28.60%
发文量
45
审稿时长
4-8 weeks
期刊介绍: The journal Horticultura Brasileira, a quarterly journal, is the Official Publication of the Sociedade de Olericultura do Brasil. Its abbreviated title is Hortic. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.
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