Evaluation of potato clones for heat tolerance in the southern region of Minas Gerais, Brazil

Teixeira, Alexsandro Lara; Pinto, César Augusto Brasil Pereira; Lepre, André Luiz; Peixouto, Leandro Santos; Ribeiro, Guilherme

doi:10.5039/agraria.v10i2a3268

Cited by 5 publications

(10 citation statements)

References 12 publications

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“…The G×E is commonly detected for SG and has already been described in other studies (Teixeira et al 2015, Wang et al 2017. Teixeira et al (2015) discussed the effect temperature has on the SG, where environments that had higher temperatures can cause a decrease in SG compared to environments with mild temperatures. The G×E can be linked to the fact that SG tends to decrease at high temperatures, and some clones exhibit an unequal response to this.…”

Section: Resultsmentioning

confidence: 73%

“…The MLG clones had higher MTY compared to the check cultivars. The fact that the MLG clones were selected under tropical conditions may explain this higher MTY; MLG clones proved to be more adapted to tropical growing conditions, showing lower losses than commonly occur for most potato cultivars under these conditions (Lambert et al 2006, Teixeira et al 2015, Kim and Lee 2016.…”

Section: Resultsmentioning

confidence: 99%

“…One of the reasons for this lower yield is related to the fact that the cultivars used in Brazil are mostly of European and North American origin and, therefore, are not adapted to the tropical conditions of Brazil (Lambert et al 2006). Abiotic and biotic factors associated with tropical conditions negatively affect yield; therefore, the cultivars used in Brazil are not able to express their full yield potential (Teixeira et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Stability of potato clones resistant to potato virus Y under subtropical conditions

Andrade

Patiño-Torres²,

Cavallin

et al. 2021

Crop Breed. Appl. Biotechnol.

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Brazilian potato production is based on cultivars originating from the USA and Europe; however, these cultivars were developed under different environmental conditions than those found in Brazil. The aim of this study was to evaluate the adaptability and stability of 18 potato clones (MLG), developed by the Universidade Federal de Lavras, and four cultivars in six environments in the state of Minas Gerais, Brazil. The following traits were evaluated: marketable tuber yield (MTY), specific gravity (SG), and tuber appearance (TA). Clones, environments, and the genotype × environment interaction had significant effects on all traits. The 98.13, and 62.86 % of the sum of squares from the G+G×E for MTY, SG, and TA, respectively. Three MLG clones had higher adaptability and stability, as well as better performance, than the cultivars, making them good candidates for release as cultivars.

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Section: Resultsmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stability of potato clones resistant to potato virus Y under subtropical conditions

Andrade

Patiño-Torres²,

Cavallin

et al. 2021

Crop Breed. Appl. Biotechnol.

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“…These clones were obtained and selected during the years 1996-2013 in researches that were aimed at heat tolerance and good agronomic performance (Benites & Pinto, 2011;Menezes et al, 2001;Figueiredo et al, 2015Teixeira et al, 2015). A sample of 8 to 10 clones was taken from seven groups identified as follow: CBM -1996;SR1 -2002;SR2 -2004;SR3 -2010;IRF -2010;GMR -2010. Five cultivars from different market segments were used as checks: Agata (yellow skin, oval shape, low dry matter content, fresh market), Cupido (yellow skin, round shape, low dry matter content, fresh market), Asterix (red skin, long shape, high dry matter content, fresh market and frozen French fries), Markies (yellow skin, oval shape, high dry matter content, fresh market, and frozen French fries), and Atlantic (yellow skin, round shape, high dry matter content, chips).…”

Section: Core Ideasmentioning

confidence: 99%

Performance of superior potato clones under high and mild temperatures in tropical climate

Patiño-Torres¹,

Andrade

Guedes

et al. 2021

Agronomy Journal

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Potato (Solanum tuberosum L.) is a cool weather crop and one of the most important vegetables in the world, which is cultivated in temperate, subtropical, and tropical climates. Nearly all cultivated areas in Brazil use cultivars from temperate countries, resulting in lower performances particularly due to higher temperatures. The aim of this study was to identify clones that yielded better than foreign cultivars, both under high and mild temperature conditions. The study assessed 57 clones from the potato breeding program of the Universidade Federal de Lavras (UFLA), Brazil, and five check cultivars (Agata, Asterix, Atlantic, Cupido, and Markies). We evaluated the agronomic performance using the total and marketable tuber yield, dry matter content (DM), season length, and external tuber quality, in four experiments designing in a random complete block, during the seasons 2014 and 2015. The genotypes' stability, as well as the discrimination between environments, was performed using the GGE-Biplot method. Twenty heat-tolerant clones responded favorably to mild temperatures. This breeding program has generated clones more productive and better looking than commercial cultivars, for the different market segments: two for the fresh market (GMR 17-40; GMR 12-10), four for frozen French fries (CBM 07-78; CTB 03-02; GMR 15-42; SR2 35-05) and seven for potato chips

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“…Figure 1) and is an agricultural state, occupying the fifth overall position in national production level rankings. We emphasize the diversity of the production, which includes fruit trees, olive trees [34], coffee trees [35], sugar cane [36], potato [37], maize [38], soybean [39], and bean plantations [40]. Furthermore, MG has a typical monsoon climate, with two welldefined seasons: the dry winter (June, July, and August) and the humid summer (December, January, and February), influenced by local convective activities and the South American Monsoon System (SAMS) [36], and both contribute to the state ranking with one of the country's biggest agricultural yields [41].…”

Section: Introductionmentioning

confidence: 99%

Global Solar Radiation Models in Minas Gerais, Southeastern Brazil

Monteiro

Martins

2019

Advances in Meteorology

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Accurate and complete global solar radiation (Hs) data at a specific region are crucial for regional climate assessment, crop growth modeling, and all operations that use solar energy. However, in the Minas Gerais state, Southeastern Brazil (SEB), the number of weather stations that measure global solar radiation is scarce, and when it is available, it presents gaps in the time series. An attractive alternative to solve the data gap problem is to estimate global solar radiation using empirical models. In this study, thirteen models based on maximum and minimum air temperatures, precipitation, sunshine duration, and extraterrestrial solar radiation were compared in the daily estimation of Hs. Data from 10 weather stations, from 1999 to 2017, located in Minas Gerais were used. Also, cluster analysis was used to group the localities (weather stations) with similar patterns of model performance, climatic classification (Köppen–Geiger and Thornthwaite), and seasonal data variability, considering minimum and maximum air temperatures, precipitation, sunshine duration, and global solar radiation. Although it is apparently simple, studies on this subject are scarce and the few existing ones in Minas Gerais have flaws, which justifies this study. The models were evaluated by root mean square error (RMSE), mean absolute percentage error (MAPE), mean bias error (BIAS), Willmott’s index of agreement (d), and performance index (c-index). Models based on sunshine duration, such as those proposed by Ertekin and Yaldiz and by Newland, showed the best performance (average c-index = 0.71). Models based on temperature and precipitation showed the worst results (average c-index = 0.41). Cluster analysis showed that there is a similar pattern between the performance of the models, climatic classification, and seasonal variability of data among the localities of Minas Gerais. In general, models that presented extremely poor performance were formed with weather stations located in the dry zone, but with different climate classification, and models that presented very good (and good) performance were composed by weather stations located in the humid zone (dry subhumid) with the same climate classification and similar seasonal variability. Furthermore, the models based on temperature have a tendency to overestimate radiation values below 10 MJ·m−2 day−1 and to underestimate values higher than 25 MJ·m−2 day−1. This point is a limitation of the model for estimating global solar radiation below and above these levels, showing the influence of atmospheric systems and atmospheric attenuation mechanisms of global solar radiation.

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Evaluation of potato clones for heat tolerance in the southern region of Minas Gerais, Brazil

Cited by 5 publications

References 12 publications

Stability of potato clones resistant to potato virus Y under subtropical conditions

Stability of potato clones resistant to potato virus Y under subtropical conditions

Performance of superior potato clones under high and mild temperatures in tropical climate

Global Solar Radiation Models in Minas Gerais, Southeastern Brazil

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