Genotypic performance, adaptability and stability in special types of irrigated
            rice using mixed models

Streck, Eduardo Anibele; Júnior, Ariano Martins de Magalhães; Aguiar, Gabriel Almeida; Facchinello, Paulo Henrique Karling; Fagundes, P. R. R.

doi:10.5935/1806-6690.20190008

Cited by 8 publications

(10 citation statements)

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“…Although the rice gene pool is considerably richer in comparison with wheat, there are indications of a narrowing of the genetic variability of the crop, especially in the elite germplasm, which has been under selection. The international literature has described this phenomenon (Aljumaili et al 2018), but important reports on a narrowing of the Brazilian rice germplasm have also been published (Rangel et al 1996, Raimondi et al 2014, Rabelo et al 2015, Streck et al 2018, Streck et al 2019).…”

Section: Resultsmentioning

confidence: 99%

“…more than 80% of all Brazilian rice (SOSBAI 2018). In fact, studies have reported evidence for the gradual narrowing of the genetic variability among the elite cultivars grown in southern Brazil (Rangel et al 1996, Raimondi et al 2014, Rabelo et al 2015, Streck et al 2018, Streck et al 2019. However, it is important to emphasize that these studies may have applied datasets and methods with somehow restricted efficiency to evaluate the genetic variability.…”

Section: Introductionmentioning

confidence: 99%

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Is the genetic variability of elite rice in southern Brazil really disappearing?

Busanello

Venske

Stafen

et al. 2020

Crop Breed. Appl. Biotechnol.

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There is a worldwide concern about a possible narrowing of the genetic base of most crops, as e.g. that of rice (Oryza sativa L.), as a result of the modern breeding practices. Thus, the purpose of this study was to investigate this phenomenon in the germplasm of elite paddy rice in southern Brazil, including frequently used accessions in crosses. The panel consisted of 91 accessions. Data of morphological traits, SNP markers and mineral content of husked and polished grain were analyzed by hierarchical clustering and principal component analysis. The SNP markers and hierarchical clustering proved most appropriate to assess the genetic variability. A narrowing of the genetic base of rice was confirmed, although a certain level of genetic variability was still found in the germplasm of elite paddy rice in south Brazilian rice, particularly for grain mineral content.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Is the genetic variability of elite rice in southern Brazil really disappearing?

Busanello

Venske

Stafen

et al. 2020

Crop Breed. Appl. Biotechnol.

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“…Em cada região produtora, é possível encontrar materiais antigos, resgatados pelos agricultores da região, como também, novas cultivares comerciais desconhecidas dos produtores. No entanto, as cultivares especiais são indicadas para plantio em condições de irrigação por inundação (STRECK et al, 2019). O cultivo do arroz em sistema inundado, requer grande consumo de água para a irrigação, o que é um agravante para a produção do arroz de forma sustentável (PORTUGAL et al, 2015).…”

Section: Introductionunclassified

“…Several rice varieties are cultivated in different regions and techniques. In these producing areas, it is possible to find old materials rescued by regional farmers and new commercial cultivars unknown to producers, including the planting under flood irrigation, indicated for special cultivars (STRECK et al, 2019). Rice cultivation using a floating system requires large volumes of irrigation water, which is an aggravating factor for its sustainable production (PORTUGAL et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Introduction of special rice genotypes under upland conditions

Condé¹,

Cornélio²,

Ferreira³

et al. 2021

AGRO@MBIENTE ON-LINE

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Although widely consumed as white rice, there are special rice cultivars that contain aromas, colors and nutrients that reach special market niches, and constitute alternatives to vary the Brazilian menu and the farmer’s income. Most genotypes of special rice have nutritional characteristics superior to those of white rice, with call for better health, which is a growing concern of the general population. Based Based on these assumptions, the objective was to evaluate the productivity of special rice genotypes in rainfed cultivation conditions, in two seasons (2016/2017 and 2017/2018), in the city of Lavras/MG The treatments consisted of the following accessions: YIN LU 31, Japanese, CMG 1164, Formoso, Aromatic, IAC 400, IAC 300, IAC 600, IAC 500, BRSMG Relâmpago, BRSMG Caçula, BRSMG Caravera, SCS119 Ruby, SCS120 Onyx. After analysis of variance, the adaptability analysis and stability was performed by the Annichiaric method. The Aromatic and IAC 300 genotypes, by evaluated under rainfed conditions, showed high productivity (greater than 3,000 kg.ha-1), higher than the state average (867 kg ha-1), and low incidence of diseases in the conditions of high lands. These special rice genotypes grown in upland and compared to cultivars of rice indicated for this cultivation condition demonstrated that it is possible to produce rice from quality and develop genotypes more adaptable to rainfed conditions, which can be excellent option of cultivation to conventional rice and thus increase the diversity of the agricultural property.

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“…In plant breeding, a detailed study of the interaction between genotypes and environments (G × E) is fundamental when the purpose is selecting or recommending genotypes for planting (Streck et al 2019). To attenuate the effects of the G × E interaction, Cruz and Carneiro (2006) advocate recommendation of cultivars based on the adaptability and stability of the genotypes.…”

Section: Introductionmentioning

confidence: 99%

Prediction of grain yield, adaptability, and stability in landrace varieties of lima bean (Phaseolus lunatus L.)

Sousa

Silva

Lopes

et al. 2020

Crop Breed. Appl. Biotechnol.

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The aim of this study was to compare the Multiple Linear Regression and Artificial Neural Network models in prediction of grain yield of ten landrace varieties of lima bean and evaluate adaptability and stability through the Lin and Binns method for identification of the best performing variety. Trials were conducted in the municipalities of Teresina, PI, and São Domingos do Maranhão, MA, through measurement of 12 traits, except for grain yield in São Domingos do Maranhão. The parameters of Pearson and Spearman correlation, root mean square error, mean absolute error, and coefficient of determination were used to compare the models. The Artificial Neural Network proved to be more adequate for prediction of grain yield. Adaptability and stability analyses indicated that the environments are discriminant for selection of promising genotypes, and that the landrace variety Mulatinha can be recommended for planting in the municipalities.

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Genotypic performance, adaptability and stability in special types of irrigated rice using mixed models

Cited by 8 publications

References 0 publications

Is the genetic variability of elite rice in southern Brazil really disappearing?

Is the genetic variability of elite rice in southern Brazil really disappearing?

Introduction of special rice genotypes under upland conditions

Prediction of grain yield, adaptability, and stability in landrace varieties of lima bean (Phaseolus lunatus L.)

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