Agronomic performance and selection of sweet-potato genotypes grown from seeds

Q3 Agricultural and Biological Sciences

Comunicata Scientiae Pub Date : 2023-09-25 DOI:10.14295/cs.v14.3996

Amarílis Beraldo Rós, Nobuyoshi Narita, Antônio Ismael Inácio Cardoso, Andréia Cristina Silva Hirata

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Abstract

The low availability of varieties adapted to different crop regions, mainly regarding edaphoclimatic conditions, is one of the causes of low sweet-potato crop yields. The objective of this work was to evaluate agronomic characteristics of sweet-potato plants, from the crossing between the genotypes Londrina and Uruguaiana, grown in the region of Presidente Prudente, SP, Brazil, to select materials with high commercial yield and desirable tuberous root shape and color. The natural crossing between the genotypes Londrina and Uruguaiana grown in alternating rows resulted in 2,430 potentially viable seeds. These seeds were used for growing seedlings whose vines were grown in the field for selecting genotypes with desirable characteristics. The results showed a high diversity in skin and flesh colors; number of tuberous roots per plant, shape, fresh and dry weights, and total and commercial yields of tuberous roots. The selected genotypes were then evaluated in three experiments. Several genotypes presented higher commercial yield than their parents. Three genotypes were approved as cultivars by presenting superior agronomic characteristics than their parents.

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甘薯种子栽培的农艺性能及基因型选择

甘薯产量低的原因之一是适应不同作物区域的品种数量少，主要与气候条件有关。本研究的目的是通过对生长在巴西SP . Presidente Prudente地区的Londrina基因型和Uruguaiana基因型的杂交，评估甘薯植株的农艺特性，以选择具有高商业产量和理想块根形状和颜色的材料。Londrina基因型和Uruguaiana基因型交替生长的自然杂交产生了2430个潜在的可存活种子。这些种子用于种植幼苗，其葡萄藤在田间种植，以选择具有理想特性的基因型。结果表明，皮肤和肉的颜色具有高度的多样性;每株块根的数量，形状，鲜重和干重，块根的总产量和商业产量。然后在三个实验中对所选基因型进行评价。一些基因型的商品产量高于其亲本。3个基因型均表现出优于亲本的农艺性状，被批准为品种。

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来源期刊

Comunicata Scientiae Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The Comunicata Scientiae journal edited by Campus “Profa Cinobelina Elvas” of Federal University of Piauí (Brazil) publishes original articles, scientific notes and review articles (when invited by the editorial board), which present significant importance for Agrarian and Environmental Sciences in Portuguese, Spanish and preferentially, in English.