Produtividade De Cultivares De Mandioca Sob Déficit Hídrico

Matos, Fábio Santos; Felício, Ricardo; Silva, Leandro Mariano da; Nascente, Alainy Carla de Souza; Custódio, José Paulo Carneiro; Guimarães, Roberli Ribeiro; Santos, Priscilla Gomes de Freitas; Silveira, Patrícia Souza da

doi:10.36725/agries.v2i1.186

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Studies involving genotypic characteristics of species of the Manihot genus are scarce in the literature; however, parameters such as plant height can be important for quantification of genetic diversity and selection and identification of water deficit-tolerant plants (OKOGBENIN et al, 2013), because it is essential for the evaluation of yield in several crops. Matos et al (2016) evaluated M. esculenta under water deficit and found higher plant heights in materials subjected to water stress, especially for the BRS 399 and BRS 398 cultivars. Oliveira et al (2017) evaluated 49 accessions of M. esculenta and observed that taller plants tend to be more susceptible to water stress.…”

Section: Resultsmentioning

confidence: 99%

Water regimes on the development of accessions of the Manihot genus

Sobreira,

Simões,

Nunes

et al. 2023

Rev. Caatinga

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The objective of this work was to select water deficittolerant accessions of the genus Manihot, through morphological characters under different water regimes. The experiment was conducted in a randomized block design, using a split-plot arrangement with plots consisting of tree water regimes (simulated rainfall and water depth of 100 and 20% crop evapotranspiration (ETc)), and subplots consisting of eight accessions of the genus Manihot (Gema-de-Ovo and Engana-Ladrão from the species M. esculenta Crantz, and BGMS-115, BGMS-110, BGMS-102, BGMS- 79, BGMS-24, and BGMS-48 from Manihot sp.). The accessions were evaluated considering two crop cycles: the first had 120 and 60 days from the application of the treatments. Plant height, stem diameter, number of leaves, leaf lobe length and shoot dry mass production were evaluated. For each cropping cycle, a split-plot analysis of variance was performed. The highest genotypic means were expressed by the accessions BGMS-115, BGMS-102, BGMS- 79 and BGMS-24 for most of the analyzed variables, regardless of the cultivation cycle. For the characteristic shoot dry mass production, accessions BGMS-102 and BGMS-79 showed the best performances under conditions of limited water regime (20% ETc), regardless of the cropping cycle. Accession BGMS-102 was also grouped in the group with the highest genotypic means, for this trait, in treatments with rain simulation and 100% ETc, in the first cycle, demonstrating that, under stress conditions, this accession is an option to tolerate low water precipitation and responds well when higher precipitation occurs.

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Section: Resultsmentioning

confidence: 99%

Water regimes on the development of accessions of the Manihot genus

Sobreira,

Simões,

Nunes

et al. 2023

Rev. Caatinga

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Yield gap of cassava crop as a measure of food security - an example for the main Brazilian producing regions

2018

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Dinâmica da produção de Manihot esculenta Crantz no município de Arapiraca, Alagoas

Silva

Bulhões

Espinosa

et al. 2020

RSD

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Cassava (Manihot esculenta Crantz) is one of the most important crops in tropical and subtropical regions of the world, occupying the fourth position among basic crops and responsible for being the food base of millions of people around the world. Brazil is one of the largest world producers of this culture and the Northeast region contributes significantly to national production. In Alagoas, the municipality of Arapiraca stands out as an important producer of cassava, so it is pertinent to know the local productive dynamics. In this sense, the objective was to analyze the performance of the cassava production variables during the 21-year period (1998-2018) in the municipality of Arapiraca, thus seeking to contribute to the understanding of the dynamics of this productive segment. The production data were obtained from the database of Municipal Agricultural Production - Temporary Crops of IBGE, using the Automatic Recovery System (SIDRA). To simultaneously analyze the studied variables, a Principal Component Analysis (PCA) was used. There were strong fluctuations in the variables analyzed, especially regarding the planted and harvested area. Cassava production in Arapiraca suffered a reduction in its participation in state production, as well as losses in productivity. Principal Component Analysis (PCA) explained 85.16% of the original data variance in the first two axes, with the formation of three clusters that brought together years with similar productive characteristics. Given the importance of this culture for the municipality of Arapiraca, it is necessary to develop actions that seek to rescue and strengthen local cassava production.

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Produtividade De Cultivares De Mandioca Sob Déficit Hídrico

Cited by 3 publications

References 3 publications

Water regimes on the development of accessions of the Manihot genus

Water regimes on the development of accessions of the Manihot genus

Yield gap of cassava crop as a measure of food security - an example for the main Brazilian producing regions

Dinâmica da produção de Manihot esculenta Crantz no município de Arapiraca, Alagoas

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