Optimization of germination and initial quality of seedlings of Prunus persica tree rootstocks

Souza, Aline das Graças; Spinelli, Victor Mouzinho; Souza, Rauny Oliveira de; Smiderle, Oscar José; Bianchi, Valmor João

doi:10.1590/2317-1545v39n2171687

Cited by 22 publications

(24 citation statements)

References 20 publications

(24 reference statements)

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“…11, No. 9; These estimates corroborate the usefulness of the chlorophyll meter as a tool for estimating or diagnosing the nutritional status of various crops (Xiong et al, 2015), for example, the results obtained with nectarine plants (Takle et al, 2017), peach trees (Souza et al, 2017) and apple trees (Tamburini et al, 2015).…”

Section: Resultssupporting

confidence: 59%

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Nutritional Efficiency and Morphophysiological Aspects With Growth in the ‘Okinawa Roxo’ Peach Rootstock

Souza¹,

Ritterbusch²,

Menegatti³

et al. 2019

JAS

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The aim of this study was to evaluate the efficiency of nutrient uptake, accumulation, distribution and use, and its relationship with growth variables, chlorophyll content, and root and shoot dry-weight partitioning in the ‘Okinawa Roxo’ peach rootstock, submitted to different nutrient solutions and substrates. The experimental design was completely randomised, with four treatments and five replications. The treatments were T1: Ns1 = Souza et al. nutrient solution (2011), applied to a sand substrate; T2: Ns2 = Hoagland and Arnon (1950), applied to a sand substrate; T3: Commercial Substrate + H2O; and T4: Control, Sand + H2O. Ninety days after transplanting (DAT), morphological, physiological and nutritional parameters were determined in the ‘Okinawa Roxo’ rootstock, together with the correlation between nitrogen concentration and nitrogen balance index, and the chlorophyll content and index. The greatest zinc content was detected in the shoots of the ‘Okinawa Roxo’ plants, at more than 80% of the accumulated total. Treatments T1 and T2 (nutrient solutions Ns1 and Ns2 respectively) made it possible to obtain ‘Okinawa Roxo’ plants with the best morphophysiological characteristics, being ready for grafting three months after transplanting in a greenhouse. The use of the Ns1 nutrient solution resulted in greater efficiency in the uptake and use of the nutrients nitrogen (N), potassium (K) and iron (Fe). The N and Total Chlorophyll concentrations in the leaves of the red-leaved peach tree can be estimated indirectly with a chlorophyll meter, and are an accurate indication of the nutritional status of the plant in relation to nitrogen content.

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Section: Resultssupporting

confidence: 59%

“…There are no studies of the chemical and physiological attributes of the red-leaved cultivars of the peach tree found in the literature, and 'Okinawa Roxo' is a read leaf peach rootstock with great potential for use in Brazil (Souza et al, 2016;Souza et al, 2017), a fact which stimulated the development of the present study.…”

Section: Introductionmentioning

confidence: 99%

Nutritional Efficiency and Morphophysiological Aspects With Growth in the ‘Okinawa Roxo’ Peach Rootstock

Souza¹,

Ritterbusch²,

Menegatti³

et al. 2019

JAS

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“…The present study was conducted using propagation material from peach rootstock of the Once the fruit had been harvested, post-harvest management of the stones was carried, this was followed by the process of seed stratification, as recommended by Souza et al (2017). After the period of stratification (Ferreira, 2011).…”

Section: Methodsmentioning

confidence: 99%

Growth and nutrient accumulation in three peach rootstocks until the grafting stage

2019

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Analysing growth and nutrient accumulation is generally employed for guiding the fertilisation practices in the seedling-production chain. In the production of peach rootstock, such evaluations can provide information to aid can to aid in discrimination available genotypes, especially regarding the efficient use and conversion of fertiliser into dry matter, which can reduce the time required to obtain plants suitable for grafting. The aim of this study, was to investigate the differences in growth and nutrient accumulation in three peach-rootstock cultivars. A completely randomised experimental design was used, in a 3 x 4 factorial scheme, including three peach rootstocks ('Flordaguard', 'Capdeboscq' and 'Okinawa Roxo') and four periods of growth evaluation (20, 40, 60 and 80 days after transplanting - DAT), giving a total of 12 treatments, with four replications, one for each plant. The Flordaguard and Capdeboscq cultivars showed greater height and stem diameter as well as a greater accumulation of total dry matter at 80 DAT, and both followed the distribution: leaves (67%) > roots (33%), while total dry-matter production in 'Okinawa Roxo' was less, following the order: leaves (71%) > roots (29%). The rootstock under evaluation showed variations in growth, confirmed by the physiological indices, except for the leaf area and specific leaf area. In general, macronutrient accumulation in the shoots and roots of the cultivars during each growth period was different, suggesting intrinsic differences in each of the genetic materials regarding nutrient demand for maintaining the metabolic processes which are vital to plant growth.

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“…), such as Nemared (Ramming & Tanner, 1983), Flordaguard (Sherman et al, 1991), Guardian (Nyczepir et al, 1999), Okinawa , Umezeiro (Prunus mume) (Lecouls et al, 1997;Mayer et al, 2017) and MP-29 (Backman et al, 2012). Other genotypes with characteristics of interest are being investigated in Brazil, such as rootstocks of the Okinawa-roxo, Tsukuba 1, Tsukuba 2 and Tsukuba 3 cultivars (Souza et al, 2016;Souza et al, 2017a), as well as interspecific hybrids introduced and used successfully in other countries, and other species of Prunus spp. (Bianchi et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Prospecting for Nematodes Associated With Different Prunus Rootstocks in Brazil

Souza¹,

Brida²,

García³

et al. 2019

JAS

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The aim of the present study was to carry out a search for phytonematodes to verify the abundance and frequency of nematodes present in a peach orchard at eight years of age. Soil and root samples from nine peach rootstocks were collected in an experimental area in the district of Capão do Leão, in the State of Rio Grande do Sul, Brazil. After extraction, the samples were evaluated under an optical microscope. Nematodes of the following genera were identified in the samples: Meloidogyne spp., Pratylenchus spp., Helicotylenchus spp., Mesocriconema spp., Trichodorus spp., Longydorus spp., Tylenchorchynchus spp., Hemiciclyophora spp., Xiphinema spp., Tylenchulus spp., Dorylaimus spp., Rotylenchulus spp. and Mononchus spp., all associated with the roots or soil rhizosphere of ‘Aldrighi’, ‘Capdeboscq’, ‘Flordaguard’, ‘Nemaguard’, ‘Okinawa’, ‘Tusukuba’, ‘Umezeiro’, ‘Viamão’ and ‘Industry’ rootstocks. The most frequent phytoparasitic nematodes were Meloidogyne spp., and Mesocriconema spp., which, under high populations or under inadequate management of the cultivated area, represent a risk to peach cultivation. Xiphinema and Pratylenchus are two other phytonematodes that can cause damage to peach trees and were identified in greater abundance in the ‘Industry’, ‘Viamão’ and ‘Nemaguard’ rootstocks. Under the conditions of the present research the ‘Okinawa’ and ‘Umezeiro’ rootstocks proved to be unfavourable hosts, especially for Meloidogyne spp. and Mesocriconema spp. The ‘Viamão’, ‘Capdeboscq’, ‘Aldrighi’ and particularly the ‘Industry’ rootstcks should not be recommended for use in areas with an incidence of the nematodes Meloidogyne spp. or Mesocriconema spp.

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Optimization of germination and initial quality of seedlings of Prunus persica tree rootstocks

Cited by 22 publications

References 20 publications

Nutritional Efficiency and Morphophysiological Aspects With Growth in the ‘Okinawa Roxo’ Peach Rootstock

Nutritional Efficiency and Morphophysiological Aspects With Growth in the ‘Okinawa Roxo’ Peach Rootstock

Growth and nutrient accumulation in three peach rootstocks until the grafting stage

Prospecting for Nematodes Associated With Different Prunus Rootstocks in Brazil

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