BRS Jaspe: a processing peach cultivar for low chill areas

Raseira, M. do C. B.; Franzon, Rodrigo Cezar; Feldberg, Nelson Pires; Scaranari, Ciro; Pereira, José Francisco Martins

doi:10.1590/1984-70332020v20n1c5

Cited by 4 publications

(4 citation statements)

References 5 publications

(3 reference statements)

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“…This trait is highly correlated with fruit dimensions (Albuquerque et al 2004) and carotenoid content in fruit (Matias et al 2016). It ranged from 129.8 g (FS4 hybrid) to 178.1 g (FS7 hybrid) and was consistent with the results found by Raseira et al (2020). Fruit weight was significantly higher in the FS7 hybrid and significantly lower in the FS4 and FS6 hybrids compared to the Summerset cultivar (155.3 g).…”

Section: Resultssupporting

confidence: 86%

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Phenological characteristics and yield potential of some late-ripening peach hybrids

Radović

Rakonjac

Vico

et al. 2020

Crop Breed. Appl. Biotechnol.

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Section: Resultssupporting

confidence: 86%

“…Fruit set is a very important trait that has a preponderant effect on peach yield. Peach cultivars that have a medium to high fruit set can achieve a yield of nearly 20 t ha -1 in an adult orchard (Raseira et al 2020). The hybrids studied had a very high initial fruit set (Table 4).…”

Section: Resultsmentioning

confidence: 99%

Phenological characteristics and yield potential of some late-ripening peach hybrids

Radović

Rakonjac

Vico

et al. 2020

Crop Breed. Appl. Biotechnol.

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“…However, the so-called first quality fruit means being over 5.7 cm in diameter, and any measurement above that has the same value. Diameter is highly correlated with fruit weight, which means that there is no advantage in producing larger fruits beyond a certain average weight, with advantages only for greater numbers of fruit (Raseira et al, 2020). The 5.7cm diameter corresponds to an average weight of approximately 100g per fruit in most cultivars.…”

Section: Discussionmentioning

confidence: 99%

Genetic Progress in 53 Years of the Peach Breeding Program of Embrapa: Canning Genotypes

Nardino

Corrêa

Raseira

et al. 2021

Preprint

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Peach is a traditional crop in the south of Rio Grande do Sul State, Brazil, where 30 to 53 million cans of peaches in syrup are produced annually. All the raw material produced in the region consists of fruits originating from the peach breeding program of the Brazilian Agricultural Research Corporation (Embrapa Temperate Agriculture), which started even before Embrapa at the Experimental Station of Pelotas, Ministry of Agriculture. The objective was to estimate the genetic progress in phenological traits and production of canning peach resulting from the peach breeding program of Embrapa Temperate Agriculture in 53 years. We divided the data records considered in the estimation of genetic progress into two periods, 1964-1984 and 1985-2017, totaling 53 years. The following traits: maturing period, cycle, number of fruits, fruit weight, yield, and soluble solids content were evaluated. We initially tabulated data and analyzed descriptive statistics. Subsequently, we conducted analysis of mixed models and obtained the estimates of genetic progress through meta-analysis. Genetic gain for earliness, shortening the cycle from flowering to maturation, and genetic gain for fruit yield were observed.

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“…The interest for low-chill cultivars in Brazil is exacerbated by climate change, which is bringing warmer winters and has impact on dormancy and on leafing and blooming uniformity [63]. Brazilian low-chill oftentimes makes cultivars require 200-300 chilling hours to emerge from dormancy [64]. 'Esmeralda' apparently required more than 198 chilling hours, if number of chilling hours was the limiting factor, whereas 219 chilling hours were likely sufficient to reach high fruit yield and quality levels.…”

Section: Climatic Featuresmentioning

confidence: 99%

Esmeralda Peach (Prunus persica) Fruit Yield and Quality Response to Nitrogen Fertilization

Nava

Júnior

Parent

et al. 2022

Plants

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‘Esmeralda’ is an orange fleshed peach cultivar primarily used for juice extraction and secondarily used for the fresh fruit market. Fruit yield and quality depend on several local environmental and managerial factors, mainly on nitrogen, which must be balanced with other nutrients. Similar to other perennial crops, peach trees show carryover effects of carbohydrates and nutrients and of nutrients stored in their tissues. The aims of the present study are (i) to identify the major sources of seasonal variability in fruit yield and qu Fruit Tree Department of Federal University of Pelotas (UFPEL), Pelotas 96010610ality; and (ii) to establish the N dose and the internal nutrient balance to reach high fruit yield and quality. The experiment was conducted from 2014 to 2017 in Southern Brazil and it followed five N treatments (0, 40, 80, 120 and 160 kg N ha−1 year−1). Foliar compositions were centered log-ratio (clr) transformed in order to account for multiple nutrient interactions and allow computing distances between compositions. Based on the feature ranking, chilling hours, degree-days and rainfall were the most influential features. Machine learning models k-nearest neighbors (KNN) and stochastic gradient decent (SGD) performed well on yield and quality indices, and reached accuracy from 0.75 to 1.00. In 2014, fruit production did not respond to added N, and it indicated the carryover effects of previously stored carbohydrates and nutrients. The plant had a quadratic response (p < 0.05) to N addition in 2015 and 2016, which reached maximum yield of 80 kg N ha−1. In 2017, harvest was a failure due to the chilling hours (198 h) and the relatively small number of fruits per tree. Fruit yield and antioxidant content increased abruptly when foliar clrCu was >−5.410. The higher foliar P linearly decreased total titratable acidity and increased pulp firmness when clrP > 0.556. Foliar N concentration range was narrow at high fruit yield and quality. The present results have emphasized the need of accounting for carryover effects, nutrient interactions and local factors in order to predict peach yield and nutrient dosage.

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BRS Jaspe: a processing peach cultivar for low chill areas

Cited by 4 publications

References 5 publications

Phenological characteristics and yield potential of some late-ripening peach hybrids

Phenological characteristics and yield potential of some late-ripening peach hybrids

Genetic Progress in 53 Years of the Peach Breeding Program of Embrapa: Canning Genotypes

Esmeralda Peach (Prunus persica) Fruit Yield and Quality Response to Nitrogen Fertilization

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