Produção de fitomassa em genótipos de citros submetidos a estresse hídrico na formação do porta-enxerto

Suassuna, Janivan Fernandes; Fernandes, Pedro Dantas; Nascimento, Ronaldo do; Oliveira, A. C. M. de; Brito, Kalyne Sonale Arruda de; Melo, Alberto Soares de

doi:10.1590/s1415-43662012001200007

Cited by 11 publications

(6 citation statements)

References 18 publications

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“…The same explanation can be attributed to the root / shoot ratio, even if there was no statistical difference a greater increase of the root in relation to the aerial part could be observed, in the attempt to expand its volume in the soil to fetch water and nutrients. Suassuna et al (2012) found increases in the root/ shoot ratio in some citrus genotypes also submitted to water deficiency, differing in this way with the research developed here.…”

Section: Transpirationcontrasting

confidence: 99%

Growth and gas exchange of Tachigali vulgaris submitted to water deficiency

Ataíde¹,

Neto²,

Silva³

et al. 2018

Rev. Ciênc. Agr.

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species, colonizer of marginal lands and road margins, which often initiates secondary succession in open areas by the intense germination of their seeds in the soil. Studies on fastgrowing Amazon forest species are very scarce, when it refers to the influence of abiotic factors on an ecophysiology of the species. The experiment was conducted in a greenhouse belong to laboratory of Estudos da Biodiversidade de Plantas Superiores of the Federal Rural University of Amazonia. The experiment was completely randomized in split plot scheme, two times: five and ten days of water suspension, and two water conditions: control and water deficit, with four replications with one plant /pot. The water deficiency condition for ten days negatively affected the growth and indicators of gas exchange (A, gs and E). Adding to the fact that the experiment occurred in a year of extreme climatic anomaly (El Niño), the plants did not resist and perished in the internal conditions of greenhouse. The water deficiency condition altered the growth parameters and the environmental relations of the Tachigali vulgaris species, thus evidencing its low physiological plasticity to this abiotic condition.

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Section: Transpirationcontrasting

confidence: 99%

Growth and gas exchange of Tachigali vulgaris submitted to water deficiency

Ataíde¹,

Neto²,

Silva³

et al. 2018

Rev. Ciênc. Agr.

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“…Nas plantas com menores condutâncias, como as enxertadas em MXWL x LHA, pressupõe-se a ocorrência de danos metabólicos (Campos et al, 2011). As médias de condutância determinadas foram semelhantes às relatadas por Suassuna et al (2012) para laranjeiras 'Valência' em deficit hídrico. Magalhães Filho et al (2008) verificaram, em laranjeiras 'Valência' sobre 'Cravo' e trifoliata, condutância estomática próxima à Figura 2.…”

Section: Resultsunclassified

Porta-enxertos promissores, alternativos ao limoeiro 'Cravo', nos Tabuleiros Costeiros de Sergipe

Carvalho

Filho

et al. 2016

Pesq. agropec. bras.

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Resumo: O objetivo deste trabalho foi identificar porta-enxertos alternativos ao limoeiro 'Cravo' comum, para produção de laranja 'Pêra', nas condições dos Tabuleiros Costeiros de Sergipe. Foram avaliados 43 porta-enxertos quanto a altura, copa, taxa fotossintética, teor de prolina, eficiência produtiva, produção e produtividade por planta. O limoeiro 'Cravo' comum foi considerado como padrão. Os porta-enxertos híbrido TSKC x (LCR x TR) - 059, citrandarim 'Riverside', limoeiro 'Cravo CNPMF - 03' e outros 12 superaram o limoeiro 'Cravo' comum na indução de eficiência produtiva à copa; limoeiro 'Rugoso Vermelho', citrandarim 'Indio' e mais quatro promoveram maior produtividade; TSKC x CTRK - 001 e TSKFL x CTC13 - 012 se destacaram pela magnitude da assimilação de CO2; e TSKC x (LCR x TR) - 040 e TSKC x CTRK - 001 apresentaram maior acúmulo de prolina. São considerados alternativas promissoras os seguintes porta-enxertos: híbrido TSKC x (LCR x TR) - 059; citrandarins 'Indio', 'Riverside' e 'San Diego'; limoeiros 'Rugoso Vermelho' e 'Cravo CNPMF - 03'; e híbridos TSKC x CTRK - 001, TSKFL x CTC13 - 012, TSKC x (LCR x TR) - 040, TSKC x LHA - 006, TSKC x CTQT1434 - 001, TSKC x CTSW - 058 e TSKFL x CTARG - 028.

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“…If there is no LAI expansion due to water stress, carbon and energy productions are reduced, causing the plants to direct their metabolism to escape measures, that is, Engenharia Agrícola, Jaboticabal, v.39, n.4, p.434-443, jul./aug. 2019 a defense mechanism that distributes assimilates to the underground organs (Suassuna et al, 2012). This impairs plant development and has negative consequences on tuber production, as indicated by the results presented in this study.…”

Section: Resultsmentioning

confidence: 71%

Water Depletion Depth for Irrigation of Potato Cultivar Ágata

Silva

Jadoski²,

Martinkoski

2019

Eng. Agríc.

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Potato (Solanum tuberosum L.) cultivation has a high demand for management and treatments during the vegetative cycle in the field. Among these requirements, water management is a limiting factor of tuber productivity and quality. This study aimed to determine the most appropriate soil water depletion depth for irrigation management in potato crops of Ágata cultivar, under the edaphoclimatic conditions of Guarapuava-PR, considering its influence on crop vegetative development. The study was conducted using four water depletion depths in the soil (12, 24, 36, and 48 mm). The different irrigation treatments promoted differences in shoot dry mass, leaf area index (LAI), number of tubers per plant, and productivity. The highest yield was observed for 27.62 mm depletion. When irrigation depth was increased to 48 mm, tubers showed individual mass reduction and hence productivity, affecting commercial classification. A cumulative depletion of about 27 mm between irrigations proved to be the most adequate management to supply the water demand of Ágata potato cultivar.

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Produção de fitomassa em genótipos de citros submetidos a estresse hídrico na formação do porta-enxerto

Cited by 11 publications

References 18 publications

Growth and gas exchange of Tachigali vulgaris submitted to water deficiency

Growth and gas exchange of Tachigali vulgaris submitted to water deficiency

Porta-enxertos promissores, alternativos ao limoeiro 'Cravo', nos Tabuleiros Costeiros de Sergipe

Water Depletion Depth for Irrigation of Potato Cultivar Ágata

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