Photosynthetic activity in the rootstock of hybrid peach trees submitted to water restriction and flooding

Martinazzo, Emanuela Garbin; Perboni, Anelise Tessari; Farias, Márcio Espinosa de; Bianchi, Valmor João; Bacarin, Marcos Antônio

doi:10.1590/s1677-04202011000300007

Cited by 16 publications

(13 citation statements)

References 10 publications

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“…Therefore, under stress conditions, Ci tends to a decrease in its values, having in mind that the stomatal conductance is reduced, thus limiting the entry of CO 2 through the stomata. Such behavior has been observed in other studies conducted in Prunus by Martinazzo et al (2011Martinazzo et al ( , 2013, Rouhi et al (2007) and Pimentel et al (2014); and this study was discretely checked in plum trees cultivar 'Marianna 2624', on the first and second day of stress for the flooded plants and on the fourth and sixth days for water deficit treatment, where their obtained values differed in relation to the control plants. Different behavior was observed in plants of the rootstock 'Capdeboscq' submitted to flooding, where on the last day of evaluation (third and fourth) reached a significant increase in the values of Ci.…”

Section: Resultssupporting

confidence: 75%

“…The stomatal closure and reduction in post-water stress net photosynthesis have been reported in Prunus (MARTINAZZO et al, 2011;MARTINAZZO et al, 2013;PIMENTEL et al, 2014). In trials where rootstocks of 'GXN-9' hybrid (Prunus dulcis Mill.…”

Section: Resultsmentioning

confidence: 97%

“…In trials where rootstocks of 'GXN-9' hybrid (Prunus dulcis Mill. Prunus persica L. × Bastsch) were utilized, Martinazzo et al (2011) also observed greater severity imposed by the flooding stress than by water deficit, but the 'GXN-9' plants began to show significant fall in the values of A and gs only on the seventh and eighth day of the experiment. Martinazzo et al (2013) parameters evaluated from the fourth and fifth day of stress, however, on the contrary of the observed in this study with cultivar 'Julior', the plum tree 'America' demonstrated more serious consequences for the water deficit treatment as compared with flooding.…”

Section: Resultsmentioning

confidence: 98%

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EVALUATION OF GAS EXCHANGES IN DIFFERENT Prunus SPP. ROOTSTOCKS UNDER DROUGHT AND FLOODING STRESS

et al. 2017

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-The state of Rio Grande do Sul is the largest peach productor in Brazil; however, it still possesses poor yield values when compared with other states. One of the problems associated with this is the occurrence of soils with drainage problems, mainly in Pelotas region, which depending on the year period, may undergo water deficit or flooding situations in the great majority of the years, which harm the crop development and yield. Among the harmful effects caused by these stresses stand out, the decrease in the net assimilation rate, closure of stomata, reduction of the cell activities, production of reactive oxygen species, membrane and protein destabilization. Thus, the aim of this study was to investigate in what magnitude of the gaseous exchange parameters of Prunus spp. rootstocks are influenced under drought and flood stress. In the experiment, gas exchange parameters net photosynthetic rate (A) stomata conductance (gs), intercellular carbon (Ci) and transpiration (E)] were evaluated in three Prunus spp. rootstocks (peach tree 'Capdeboscq' and plum trees 'Julior' and 'Marianna 2624') under three water conditions (control, water deficit and soil flooding) for seven days. The three rootstocks proved more susceptible to flooding than to water deficit, only varying in response time, which is intrinsic to each genotype, and that there is a genetic variability for the tolerance to the studied stresses. The variation on physiological response to the water deficit stress was later in both evaluated genotypes. However, in general, 'Julior' presented greater tolerance to both stresses when compared to the other rootstocks evaluated. Such information is useful to help in the choice of rootstocks for plant production, in the orchard management and for plant breeding programs, aiming at the selection of new genotypes with increased tolerance to these water stresses. Index terms: water stress, photosynthesis, peach tree, plum tree. PARÂMETROS DE TROCAS GASOSAS EM DIFERENTES PORTA ENXERTOS DE Prunus SPP. SUBMETIDOS AO ESTRESSE POR SECA E ALAGAMENTORESUMO-O Estado do Rio Grande do Sul é o detentor da maior produção de pêssegos do Brasil; entretanto, ainda possui valores baixos de produtividade, quando comparado com outros estados. Um dos problemas associados a isto é a ocorrência de solos com problemas de drenagem, principalmente na região de Pelotas que, dependendo do período do ano, podem sofrer situações de déficit hídrico ou de alagamento, na grande maioria dos anos, que prejudicam o desenvolvimento e a produtividade da cultura. Dentre os efeitos prejudiciais causados por estes estresses, destacam-se a diminuição na taxa assimilatória líquida, fechamento de estômatos, a redução das atividades celulares, a produção de espécies reativas de oxigênio e a desestabilização de membranas e de proteínas. Desta forma, o objetivo deste trabalho foi investigar em que magnitude os parâmetros de trocas gasosas de porta-enxertos de Prunus spp. são influenciados sob estresse por seca e alagamento. No experimento, foram avali...

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Section: Resultssupporting

confidence: 75%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 98%

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EVALUATION OF GAS EXCHANGES IN DIFFERENT Prunus SPP. ROOTSTOCKS UNDER DROUGHT AND FLOODING STRESS

et al. 2017

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“…Therefore, in this study, we are testing volumes lower than the those supplied by SIC to impose controlled stress, which can improve water use efficiency in organic potponics system for lettuce. This system was evaluated using agronomic and physiological traits, such as stomatal conductance, chlorophyll content and chlorophyll a fluorescence, which are drought-sensitive traits (Martinazzo et al, 2011;Dias et al, 2013). This study sets the ground for a widespread use of SIC for the cultivation of plants in pots for commercial and research purposes.…”

Section: Introductionmentioning

confidence: 99%

Automatically controlled deficit irrigation of lettuce in “organic potponics”

Valença

Carvalho

Reinert

et al. 2018

Sci. agric. (Piracicaba, Braz.)

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“…D.A. Webb × Prunus persica [L.] Batsch) (Martinazzo et al, 2011), apricot (P. armeniaca) (Domingo et al, 2002;Nicolás et al, 2005), peach (Insausti and Gorjón, 2013), in peach-almond interspecific crosses and Prunus cerasifera Ehrh. (Xiloyannis et al, 2002), and the peach-almond hybrids 'Felinem' and 'Garnem' rootstocks (Amador et al, 2012).…”

Section: Scion-rootstock Graft Incompatibilitymentioning

confidence: 99%

Rootstock breeding in Prunus species: Ongoing efforts and new challenges

Gainza¹,

Opazo²,

Guajardo³

et al. 2015

Chilean J. Agric. Res.

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The current global agricultural challenges imply the need to generate new technologies and farming systems. In this context, rootstocks are an essential component in modern agriculture. Most currently used are those clonally propagated and there are several ongoing efforts to develop this type of plant material. Despite this tendency, lesser number of rootstock breeding programs exists in comparison to the large number of breeding programs for scion cultivars. In the case of rootstocks, traits evaluated in new selection lines are quite different: From the agronomic standpoint vigor is a key issue in order to establish high-density orchards. Other important agronomic traits include compatibility with a wide spectrum of cultivars from different species, good tolerance to root hypoxia, water use efficiency, aptitude to extract or exclude certain soil nutrients, and tolerance to soil or water salinity. Biotic stresses are also important: Resistance/tolerance to pests and diseases, such as nematodes, soil-borne fungi, crown gall, bacterial canker, and several virus, viroids, and phytoplasms. In this sense, the creation of new rootstocks at Centro de Estudios Avanzados en Fruticultura (CEAF) offers an alternative to stone fruit crop, particularly in Chile, where just a few alternatives are commercially available, and there are site-specific problems. The implementation of molecular markers in order to give support to the phenotypic evaluation of plant breeding has great potential assisting the selection of new genotypes of rootstocks. Marker-Assisted Selection (MAS) can shorten the time required to obtain new cultivars and can make the process more cost-effective than selection based exclusively on phenotype, but more basic research is needed to well understood the molecular and physiological mechanisms behind the studied trait.

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Photosynthetic activity in the rootstock of hybrid peach trees submitted to water restriction and flooding

Cited by 16 publications

References 10 publications

EVALUATION OF GAS EXCHANGES IN DIFFERENT Prunus SPP. ROOTSTOCKS UNDER DROUGHT AND FLOODING STRESS

EVALUATION OF GAS EXCHANGES IN DIFFERENT Prunus SPP. ROOTSTOCKS UNDER DROUGHT AND FLOODING STRESS

Automatically controlled deficit irrigation of lettuce in “organic potponics”

Rootstock breeding in Prunus species: Ongoing efforts and new challenges

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