Correlation of biometrical characteristics of fruit and seed with twinning and vigor of Prunus persica rootstocks

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

doi:10.1590/2317-1545v38n4164650

Cited by 28 publications

(21 citation statements)

References 16 publications

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“…Aldrighi 1 is an old cultivar used as a rootstock that has good grafting affinity for most peach tree cultivars used in Brazil, inducing medium scion vigor and productivity. However, Souza et al (2016) verified that Aldrighi 1 rootstock induced greater fruit mass and vigor than Tsukuba 2 rootstock. The cultivar is susceptible to root-knot nematodes (Meloidogyne spp.).…”

Section: Plant Materials and Water Deficit Conditionsmentioning

confidence: 80%

Differential expression of the genes involved in responses to water-deficit stress in peach trees cv. Chimarrita grafted onto two different rootstocks

et al. 2019

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Water deficit is responsible for a negative impact on agricultural systems. Several physiological, biochemical, and molecular processes are initiated as a response to water-deficit stress.Quantifying the differential expression of the genes involved in the response to water-deficit stress plays a key role in the development of molecular strategies for engineering water-stress tolerance in plants.Therefore, the present study aims to evaluate the expression of key genes involved in the water-deficit response process in peach trees cv. Chimarrita grafted onto two different rootstocks. The experimental design was completely randomized, with four treatments that correspond to the evaluation periods: day zero (control), the fourth, seventh, and ninth days of water-deficit stress. Leaf samples of each Chimarrita/rootstock combination were analyzed separately. The PLANT BREEDING -ArticleDifferential expression of the genes involved in responses to water-deficit stress in peach trees cv. Chimarrita grafted onto two different rootstocks expression of the genes related to ethylene biosynthesis, osmotic adjustment, and carbohydrate metabolism, namely ACC oxidase, GTL, SDH, SIP1, SOT1, S6PDH, and P5CS was quantified by real-time quantitative polymerase chain reaction (RT-qPCR). A differential response was observed in the expression of the SDH, GTL, P5CS, and SIP1 genes between Chimarrita/rootstock (Aldrighi 1 and Tsukuba 2) combinations. In both combinations of grafting, the S6PDH gene presented the highest level of expression at the fourth day of stress.These results show that genes related to carbohydrate and proline metabolism are important molecular markers to identify variability to water-deficit tolerance in Prunus persica.

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Section: Plant Materials and Water Deficit Conditionsmentioning

confidence: 80%

Differential expression of the genes involved in responses to water-deficit stress in peach trees cv. Chimarrita grafted onto two different rootstocks

et al. 2019

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“…Positive correlations were found for the variables associated with the levels of chlorophyll and N, ranging from moderate to high magnitude (Table 7). According to Souza et al (2016), a correlation is considered of high magnitude when the correlation coefficient ranges from 0.8 ≤ r < 1.0. Positive correlations of high magnitude were obtained between the CHLI and the CHLT content of the leaves of the 'Okinawa Roxo' plants.…”

Section: Resultsmentioning

confidence: 99%

“…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 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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“…American Journal of Plant Sciences and between production cycles [19]. Peach seeds with higher values of length, width and thickness presented a higher germination rate and more vigorous plants [20]. Pulp and peel yield was 96.65% for the fruits harvested from the mother plants in Caparaó-MG (L2), differing from the values obtained from fruits harvested from the mother plants in Caparaó-ES (L1), which was 86.06%, values higher than those found by Guilherme et al [17] in a fruit mesocarp harvested in Ponta Grossa-PR, which was 83.3% and Eugenia calycina fruits, whose pulp yield was 59.1% [21].…”

Section: Resultsmentioning

confidence: 99%

Characterization of Fruits in Contrasting Environments and Germination of Tamarillo Seeds at Different Temperatures

Maciel¹,

Lima²,

Madalon³

et al. 2018

AJPS

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Tamarillo (Solanum betaceum Cav. Syn Cyphomandra betacea Cav.) Sendt is a small tree native to the subtropical Andean region of South America from Colombia to Chile, popularly known as arboreal tomato, belonging to the family Solanaceae. The objective of this study was to evaluate the physicochemical characteristics of fruits and the germination of tamarillo (Solanum betaceum) seeds produced in the Caparaó-ES and MG regions. The following procedures were performed: Fruit and peel biometrics; fruit weight; pulp and peel weight; thousand-seed weight, pulp and peel yield and fruit dry mass. In the physicochemical analysis, the following parameters were determined: pH; soluble solids; titratable acidity and ratio. For the analysis of the physiological quality of the seeds, different temperatures (20˚C; 25˚C; 30˚C and 20˚C -30˚C) were evaluated in the presence and absence of light and the following was determined: Seed moisture content; germination; germination speed index; germination mean time; shoot length; root and total seedling dry mass.Tamarillo in the region of Caparaó-ES presents greater chemical characteristics of the fruits, germination and vigor, and in the region of Caparaó-MG presents greater physical characteristics of the fruits. Tamarillo can germinate both in the presence and absence of light, although in the presence of light, it presents greater vigor.

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Correlation of biometrical characteristics of fruit and seed with twinning and vigor of Prunus persica rootstocks

Cited by 28 publications

References 16 publications

Differential expression of the genes involved in responses to water-deficit stress in peach trees cv. Chimarrita grafted onto two different rootstocks

Differential expression of the genes involved in responses to water-deficit stress in peach trees cv. Chimarrita grafted onto two different rootstocks

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

Characterization of Fruits in Contrasting Environments and Germination of Tamarillo Seeds at Different Temperatures

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