Estimating the development of landrace and improved maize cultivars as a function of air temperature

Langner, Josana Andréia; Streck, Nereu Augusto; Dalmago, Genei Antônio; Reiniger, Lia Rejane Silveira; Durigon, Angélica; Silva, Stefanía Dalmolin da; Lago, Isabel; Scheffel, Lúcio Gabriel; Poersch, Anderson Haas

doi:10.1590/0103-8478cr20151236

Cited by 4 publications

(2 citation statements)

References 12 publications

(22 reference statements)

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“…However, a greater number of days with temperatures above the optimal development range were seen in the initial growth phase of plants. While in Alegre, the average daily temperatures remained above the optimal development range during the entire experimental period [8]. Temperature is one of the abiotic factors that directly affects germination and development of maize plants, mainly influencing their grain yield and nutritional quality [9].…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Maize Varieties for Grain Yield under Water-restricted Conditions

Almeida¹,

Valadares²,

Silva

et al. 2019

JEAI

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The study sought to evaluate maize germplasm accessions from the Ifes Germplasm Bank (Ifes BAG) to identify promising lines for breeding programs to increase yield under water-restricted conditions. A competition trial was carried in two contrasting environments in the state of Espírito Santo, Brazil: municipality of Alegre and municipality of Colatina. Twenty-one maize accessions were collected and evaluated for agronomic performance in two locations (The municipalities of Almeida et al.; JEAI, 39(4): 1-13, 2019; Article no.JEAI.49978 2 Alegre and Colatina) in Espírito Santo State, Brazil. Trials were conducted under water-restricted conditions from vegetative to reproductive stage in a randomized block design with five replicates. Data were subjected to analysis of variance by the F Test and to multivariate clustering analysis according to the estimate of genetic distance proposed by Mahalanobis. Genotype by environment interaction identified promising genotypes for each specific environment. Maize germplasm accessions from the Ifes BAG showed genetic variability. Among the germplasm accessions from the Ifes BAG, the populations Padrinho, Piranão 14, Aliança and Palha Roxa are promising for breeding programs with the goal of increasing grain yield under water-restricted conditions in tropical climate regions. Original Research Article

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Section: Methodsmentioning

confidence: 99%

Evaluation of Maize Varieties for Grain Yield under Water-restricted Conditions

Almeida¹,

Valadares²,

Silva

et al. 2019

JEAI

View full text Add to dashboard Cite

show abstract

“…Air temperature influences physiological and metabolic activities, photosynthesis and photorespiration, the transport of solutes, and the balance between transpiration and water consumption (Freitas et al 2017;Ferreira et al 2019a;Martins et al 2022b). The photoperiod or day length affects the amount of solar radiation and the timing of photosynthesis and biomass production (Rawal et al 2015;Langner et al 2016;Mantai et al 2017;Freitas and Martins 2019).…”

Section: Introductionmentioning

confidence: 99%

Thermal and photoperiodic requirements of the seedling stage of three tropical forest species

et al. 2022

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Air temperature and photoperiod play an important role in the seedling development for tropical forest species. Both variables are sensitive to climate, and so evaluating thermal and photoperiodic effects on seedling development is fundamental, especially for climate change studies. Methods to quantify thermal time and the energy required for plants to reach a development stage include air temperature and cardinal temperatures. The photoperiod will also affect physiological reactions of a plant and thus its development. Here we evaluated the six thermal time methods widely used to compute thermal requirement, and identified the influence of the photoperiod from the 2015 and 2016 growing seasons and 12 sowing dates in Itajubá, Minas Gerais state, Brazil, on seedling development of three native tropical forest species Psidium guajava L. (Myrtaceae), Citharexylum myrianthum Cham. (Verbenaceae), and Bixa orellana L. (Bixaceae). The method used to quantify thermal time influenced the analytical results of seedling development; the one that considered three cardinal temperatures and compared them with the mean air temperature (Method 5) performed better in computing thermal requirements. The influence of photoperiod on seedling development was inconclusive for the three species, but all three developed better in mild temperatures (between 13.3 °C and 26.9 °C) with a photoperiod shorter than 13 h.

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Do invasive and native grasses in Brazilian Savanna differ in their photosynthetic performance under natural light radiation?

Cordeiro,

Duarte,

Della-Torre

et al. 2024

Flora

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Estimating the development of landrace and improved maize cultivars as a function of air temperature

Abstract: The objective of this study was to determine the maximum development rates for the phases of emergence, vegetative and reproductive, and to (August 20 and November 4, 2013, February 3 and August 15, 2014, and January 7, 2015

Cited by 4 publications

References 12 publications

Evaluation of Maize Varieties for Grain Yield under Water-restricted Conditions

Evaluation of Maize Varieties for Grain Yield under Water-restricted Conditions

Thermal and photoperiodic requirements of the seedling stage of three tropical forest species

Do invasive and native grasses in Brazilian Savanna differ in their photosynthetic performance under natural light radiation?

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