Genetic analyses of chilling requirements and flowering date in sweet cherry, two key traits for breeding programs

2017 ◽  
pp. 299-306
Author(s):  
E. Dirlewanger ◽  
J.A. Campoy ◽  
B. Wenden ◽  
S. Castède ◽  
L. Le Dantec ◽  
...  
Keyword(s):  
Sweet Cherry ◽  
Breeding Programs ◽  
Genetic Analyses ◽  
Flowering Date ◽  
Chilling Requirements ◽  
Traits For Breeding

scholarly journals U.S. Growers’ Willingness to Pay for Improvement in Rosaceous Fruit Traits

2017 ◽  
Vol 46 (1) ◽  
pp. 103-122 ◽  
Author(s):  
Chengyan Yue ◽  
Shuoli Zhao ◽  
Karina Gallardo ◽  
Vicki McCracken ◽  
James Luby ◽  
...  
Keyword(s):  
Willingness To Pay ◽  
Sweet Cherry ◽  
Economic Sustainability ◽  
Fruit Traits ◽  
Fruit Crops ◽  
Breeding Programs ◽  
Control Product ◽  
Fruit Flavor ◽  
Rosaceous Fruit

As growers adopt and diffuse improved food crop cultivars, their investment decisions for producing new cultivars control product accessibility and directly affect the entire supply chain. In this study, we estimated growers’ willingness to invest (willingness to pay (WTP)) in cultivars with improved quality traits for five rosaceous fruit crops: apple, peach, strawberry, sweet cherry, and tart cherry. WTP values differed by crop, but fruit flavor was consistently rated one of the most important traits, with higher WTP. This information will help breeding programs focus resources to develop superior cultivars for long-term economic sustainability of the rosaceous fruit industry.

scholarly journals Inbreeding, Coancestry, and Founding Clones of Sweet Cherries from North America

2004 ◽  
Vol 129 (4) ◽  
pp. 535-543 ◽  
Author(s):  
Cheol Choi ◽  
Frank Kappel
Keyword(s):  
Genetic Diversity ◽  
North America ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Breeding Program ◽  
Breeding Programs ◽  
Sweet Cherries

Inbreeding and coancestry coefficients were calculated for 66 sweet cherry (Prunus avium L.) selections released from four breeding programs in North America (HRIO, Vineland, Ont., IAREC, Prosser, Wash., NYSAES, Geneva, N.Y., and PARC, Summerland, B.C.). Highly used founding clones were `Black Heart', `Emperor Francis', `Empress Eugenie', `Napoleon' and `Windsor'. Coefficients of coancestry between all selections and these clones averaged 0.038, 0.045, 0.060, 0.091, and 0.033, respectively. In these five founding clones, coefficients of coancestry in self-compatible selections were over twice as much as those in self-incompatible selections except `Windsor'. In the analysis of coefficients of coancestry between self-incompatible and self-compatible sweet cherry, almost 20% of self-incompatible selections represent more than a half-sib relationship (0.125) to self-compatibles. Increasing and maintaining genetic diversity is needed in sweet cherry breeding program in North America for continued breeding progress.

scholarly journals Analysis of wild sweet cherry (Prunus avium L.) germplasm diversity in south-east Serbia

Genetika ◽  
2012 ◽  
Vol 44 (2) ◽  
pp. 259-268 ◽  
Author(s):  
Evica Mratinic ◽  
Milica Fotiric-Aksic ◽  
Radmila Jovkovic
Keyword(s):  
Skin Color ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Total Concentration ◽  
Breeding Programs ◽  
Fruit Skin ◽  
Germplasm Diversity ◽  
Chemical Traits ◽  
Almost All ◽  
Prunus Avium L

Ten wild growing sweet cherry (Prunus avium L.) genotypes from South-East Serbia with different fruit skin color were analyzed for its phenological, morphological and chemical traits. Agronomic evaluation of germplasm accessions revealed considerable diversity among different accessions for all the characters studied. The analysis of variance revealed significant differences among all genotypes for almost all examined properties. Cluster analysis showed adequate grouping of wild sweet cherry genotypes according to pomological characterization and distinguished them into two distinct groups. The first group had two subgroups and consisted of seven genotypes, while the second one included only three accessions. Despite of the significant differences among genotypes, the total concentration of phenols made a clear separation between the clusters. The level of genetic diversity in these wild sweet cherry genotypes is very high and therefore these trees are useful sources of variability for attributes studied and can be employed in further breeding programs or conservation.

Sweet Cherry Breeding in Canada: 1915 to 1995

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 904F-905
Author(s):  
G. Tehrani ◽  
W.D. Lane
Keyword(s):  
North America ◽  
Sweet Cherry ◽  
Breeding Programs ◽  
Sweet Cherry Cultivars ◽  
The Impact ◽  
Breeding Selections

Sweet cherry breeding started at Vineland and Summerland in 1915 and 1924 and has resulted in the naming and introduction of 11 and 18 cultivars, respectively. `Victor' and `Van' were the first cultivars named from Vineland and Summerland, respectively, in 1925 and 1944. `Van' has become a popular cultivar in North America and Europe. The main objective in these breeding programs has been to develop cultivars that produce large quantities of firm-fleshed, crack-free, flavorful, large, black cherries with a range of maturity dates to extend the season of harvest. In the 1960's, the development of self-fertile cultivars was added to the objective of the programs. Already several self-fertile cultivars and advanced breeding selections have been named and introduced from Canada. The programs have also contributed to the assignment of cultivars to different pollen-incompatibility groups and verification of pedigree of sweet cherry cultivars. The impact of these long-term breeding programs in Canada and abroad will be discussed in detail.

Dynamics of bud metabolites during dormancy in sweet cherry genotypes with contrasted chilling requirements

2019 ◽  
pp. 407-412
Author(s):  
R. Beauvieux ◽  
B. Wenden ◽  
P. Ballias ◽  
H. Christmann ◽  
Y. Gibon ◽  
...  
Keyword(s):  
Sweet Cherry ◽  
Chilling Requirements

scholarly journals Pollen meiosis and chilling requirements in sweet cherry

2019 ◽  
pp. 395-400
Author(s):  
E. Fadón ◽  
M. Herrero ◽  
J. Rodrigo
Keyword(s):  
Sweet Cherry ◽  
Chilling Requirements

scholarly journals GIS-Based Analysis and Mapping of the Winter Chilling Hours in Mainland Spain. Application to Some Sweet Cherry Cultivars

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 330
Author(s):  
Francisco J. Moral ◽  
Abelardo García-Martín ◽  
Francisco J. Rebollo ◽  
María A. Rozas ◽  
Luis L. Paniagua
Keyword(s):  
Spatial Variability ◽  
Sweet Cherry ◽  
Geographical Location ◽  
Fruit Trees ◽  
Multivariate Geostatistics ◽  
Mean Values ◽  
Chilling Requirements ◽  
Chilling Hours ◽  
Sweet Cherry Cultivars ◽  
Winter Chilling

The knowledge of the chilling requirements for breaking rest and flowering of fruit trees is necessary to properly select cultivars and to avoid losses due to an inappropriate cultivar selection in a particular geographical location. With the aim of providing an analysis using three models (Chilling Hours, Utah Model, and Positive Utah Model) to estimate the accumulation of winter chilling, quantifying its spatial variability and representing the spatial pattern throughout mainland Spain, temperature data from 72 meteorological stations, considering the 1975–2015 period, were utilized. The statistical properties of values corresponding to each winter chilling model were assessed and, later, they were mapped by means of an integrated geographic information system (GIS) and a multivariate geostatistics (regression-kriging) and algebra map approach. The results show that measures obtained with the three chilling models were highly related, which were used to visualize the spatial variability of the accumulated winter chilling considering each model. Moreover, the fact that elevation and latitude are related to the chilling hours enables their use as auxiliary variables to better estimate at unsampled locations and generate more accurate maps. Knowledge of the spatial patterns of chill accumulation in different areas of mainland Spain is of great importance when appropriate fruit trees and cultivars have to be selected. Moreover, if a high probability of satisfying the chilling requirements in any area is considered, quantile maps can be used instead of maps based on mean values. Finally, the potential spatial distributions of three sweet cherry cultivars were delineated using the obtained maps.

scholarly journals Evaluation of Chilling and Heat Requirements in Japanese Apricot with Three Models

HortScience ◽  
2012 ◽  
Vol 47 (12) ◽  
pp. 1826-1831 ◽  
Author(s):  
Zhihong Gao ◽  
Weibing Zhuang ◽  
Liangju Wang ◽  
Jing Shao ◽  
Xiaoyan Luo ◽  
...  
Keyword(s):  
Dormancy Breaking ◽  
Japanese Apricot ◽  
Flowering Date ◽  
Fruit Species ◽  
Chilling Requirements ◽  
Low Correlation ◽  
Growing Degree Hours ◽  
Heat Requirements ◽  
Chill Portions ◽  
Very High

Estimating chilling requirements is crucial for identifying appropriate cultivars for a given site, for timing applications of dormancy-breaking chemical agents, and for predicting consequences of climate change. For temperate-zone fruit species such as japanese apricot, productivity is reduced when chilling requirements are not adequately satisfied. In our study, we obtained chilling and heat requirements for flowering of six japanese apricot cultivars, which spanned the range of flowering times in this species for three successive years. Different methods for determining chilling requirements were evaluated and compared, and correlations among chilling requirements, heat requirements, and flowering date were established. The dynamic model proved to be the best for determining the chilling requirements of japanese apricot. The results showed a range of chilling requirements ranging from 26.3 to 75.7 chill portions and a narrow range of heat requirements, from 1017.7 to 1697.3 growing degree-hours (GDH). A very high correlation (R = 0.9797) between flowering date and chilling requirements and a low correlation (R = 0.4298) between flowering date and heat requirements suggest that flowering date in japanese apricot is mainly a consequence of the chilling requirements of the different genotypes, whereas heat requirements contribute a limited effect to the variation in flowering dates. Chilling requirements and heat requirements were positively related with a low correlation coefficient (R = 0.4211).

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