Advances in fruit crop propagation in Brazil and worldwide-apple trees

Petri, José Luiz; Hawerroth, F. J.; Fazio, Gennaro; Francescatto, Poliana; Leite, Gabriel Berenhauser

doi:10.1590/0100-29452019004

Cited by 11 publications

(7 citation statements)

References 15 publications

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“…One of the most important characteristics of a rootstock is its compatibility with the main cultivated varieties. The main properties of fruit trees depend on the quality of the obtained planting material: winter hardiness, vigor, precocity, productivity, fruit quality [13][14][15]. To determine the compatibility of the clonal rootstocks and the main varieties of apple trees used in the horticulture of the region, a series of experiments on different combinations of scions and rootstocks was carried out in the nursery:…”

Section: Resultsmentioning

confidence: 99%

Winter hardiness of apple clonal rootstocks in Southern Cisbaikalia

Rachenko,

Kiseleva

2024

E3S Web Conf.

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The paper presents the results of a study of apple clonal rootstocks carried out in 2017-2022 in the trial plots located in the Irkutsk region. The objects of the study were clonal rootstocks from various scientific institutions. The conducted fieldwork allows us to state that the ecological conditions of the Southern Cisbaikalia are generally favorable for the use of clonal rootstocks in the regional horticulture. It was found that the most adaptive forms of all the studied clonal rootstocks are the rootstocks of the Ural selection (Ural and Ural 2) and the rootstock of the Estonian selection (E-56). The clonal rootstocks 70-6-8, Arm18, and K-2 withstood winter worst of all. According to the fieldwork results, the rest of the rootstocks showed medium winter hardiness. As a result of laboratory freezing experiments, E-56 high winter hardiness was confirmed. The study of cultivar-rootstock combinations showed good compatibility of clonal rootstocks with semi-cultivated apple trees. The variety and type of the rootstock were statistically proven to affect the degree of temperature damage to fruit trees. The clonal rootstocks with high winter hardiness and those with medium winter hardiness and high recovery ability were selected for further breeding work.

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Section: Resultsmentioning

confidence: 99%

Winter hardiness of apple clonal rootstocks in Southern Cisbaikalia

Rachenko,

Kiseleva

2024

E3S Web Conf.

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“…However, areas with a predominance of slopes require adequate management due to infiltration with low drainage capacity, accentuated by the frequency of rain. Moreover, for Petri et al (2019) and Bauer et al (2020), the symptoms of diseases and disorders prevalent in apple orchards are frequent in shady and humid places, influenced by low temperatures and reduced levels of light.…”

Section: Characterization Of Orchards According To Reliefmentioning

confidence: 99%

Mapping Apple Orchards in the municipality of São Joaquim (Santa Catarina, Brazil) using Sentinel-2 data

et al. 2022

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This study carried out a mapping procedure focusing on apple orchards considering the planted area, spatial location, altitude range, slope interval, and presence of anti-hail nets in the city of São Joaquim (Southern Santa Catarina Plateau, Brazil). Spectral images from the Sentinel-2 orbital platform acquired in August 2018 and an enhanced digital elevation model from the Shuttle Radar Topography Mission (SRTM) were used. In a GIS application configured with the SIRGAS 2000,4 reference system and UTM cartographic projection, Sentinel-2 constellation images and digital elevation models from the SRTM mission and more recently refined with sensor data Phased Array type L-band Synthetic Aperture Radar (PALSAR) were added. All images were resampled to a spatial resolution of 10m. The results were validated based on high spatial resolution images available from Google Earth. The results show that São Joaquim has a planted area of 7,974.80 ha, and only 12% use an anti-hail coverage system. The majority of the orchards range from one to five ha and belong to small producers. More than 50% of the orchards are between 1,200 and 1,400 m in altitude, with 45% of orchards located in areas with slopes between 8 to 20%. Interestingly, most of the orchards are concentrated in a radius of up to 20km from the urban center of São Joaquim, where industries and cooperatives are located for packaging, processing, and logistics. This study demonstrated that orbital data from Sentinel-2 can effectively quantify the distribution of apple orchards, being a viable and effective alternative for collecting information for agricultural monitoring. In this way, it enables efficient planning of apple production, such as technical assistance, marketing with producers, and production flow.

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“…Synthetic cytokinins have a remarkable ability to stimulate growth in tissue culture and, more recently, organs in the entire plant system. Petri et al [14] also observed that the application of TDZ and aminoethoxyvinylglycine (AVG) increase the fruit set in cultivars Monalisa and Maxi Gala.…”

Section: Introductionmentioning

confidence: 97%

Increasing on Fruit Set and Yield of ‘Monalisa’ and ‘Maxi Gala’ Apple Trees Using Plant Growth Regulators

Petri

Sezerino

Fenili

et al. 2020

JEAI

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Aims: To evaluate the effect of different plant growth regulators on fruit set and yield of apple trees in mild winter conditions. Study Design: The experiment was arranged in a randomized block design. Place and Duration of Study: The experiments were carried out in southern Brazil, municipality of Caçador/SC, during the cycle 2016/2017 to 2019/2020 in the 'Monalisa'/M9 and another experiment with cultivars Maxi Gala/M9 and Monalisa/M9, in 2018/2019 and 2019/2020. Methodology: The following products were tested: TDZ (Thidiazuron) Naphthalene acetic acid (NAA), Maxcel®, Ethrel®, Promalin®, Ammonium thiosulfate, and the combination TDZ + Viviful® + Retain®. The following evaluations were carried out: fruit set, fruit yield per plant and per hectare; number of fruits per plant, average fruit mass, the red skin color of fruits, degree of russeting and classification of fruits by size. Results: In 'Monalisa' apple trees, TDZ alone and combined with PCa + AVG increases the fruit set, when applied in full bloom, while TDZ alone and NAA applied in full bloom increases the productivity. TDZ alone reduces return bloom and induces greater alternate bearing while, combined with PCa + AVG does not cause bearing alternation; however, it reduces the average fruit mass. BA + GA reduces the productivity of 'Monalisa' apple trees. The fruit set increased significantly with AVG treatments 52 ppm, 104 ppm, and 156 ppm, while the yield per plant, number of fruits per plant and estimated productivity, all treatments were significantly superior to the control treatment with the exception of AVG 52 ppm, on the Cv. Monalisa. The control treatment and AVG, 104 ppm and 156 ppm presented fruits with larger caliber and only AVG 26 ppm showed a lower percentage of fruits in the class of higher coloration, in comparison to the other treatments. The russeting incidence did not present significant differences in the cultivar Monalisa and Maxi Gala. None of the variables were significantly altered by the application of Retain® in the Cv. Maxi Gala.

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Advances in fruit crop propagation in Brazil and worldwide-apple trees

Cited by 11 publications

References 15 publications

Winter hardiness of apple clonal rootstocks in Southern Cisbaikalia

Winter hardiness of apple clonal rootstocks in Southern Cisbaikalia

Mapping Apple Orchards in the municipality of São Joaquim (Santa Catarina, Brazil) using Sentinel-2 data

Increasing on Fruit Set and Yield of ‘Monalisa’ and ‘Maxi Gala’ Apple Trees Using Plant Growth Regulators

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