LAPINS AND SUNBURST SWEET CHERRY

1984 ◽  
Vol 64 (1) ◽  
pp. 211-214 ◽  
Author(s):  
W. DAVID LANE ◽  
HANS SCHMID
Keyword(s):  
British Columbia ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Fruit Size ◽  
Research Station ◽  
Cultivar Description ◽  
Sweet Cherry Cultivars ◽  
Tree Characteristics ◽  
Better Than

Lapins and Sunburst are new self-compatible, dark fleshed sweet cherry cultivars named by Agriculture Canada Research Station, Summerland, British Columbia. Lapins matures late in the cherry season and has outstanding split resistance combined with other desirable fruit and tree characteristics. Testing to date has shown it to be better than presently grown cultivars. Sunburst is an early cultivar ripening in Bing season and is outstanding because of very large fruit size and very heavy yields. It should be a suitable cultivar in locations where fruit set is a problem and lengthy storage is not required.Key words: Prunus avium, self-compatible, split resistance, cultivar description

scholarly journals Regulating Budbreak, Flowering, and Fruit Maturity in Sweet Cherry (Prunus avium L.) cv. `Bing' by Surfactant and Nitrate Applications

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 603e-603
Author(s):  
K.G. Weis ◽  
S.M. Southwick ◽  
J.T. Yeager ◽  
W.W. Coates ◽  
Michael E. Rupert
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Fruit Size ◽  
Calcium Nitrate ◽  
Potassium Nitrate ◽  
Fruit Weight ◽  
Full Bloom ◽  
Fruit Maturity ◽  
Flower And Fruit Development

The years 1995 and 1996 were low chill years in California with respect to stone fruit dormancy. Advancing reproductive budbreak and flowering was accomplished in `Bing' cherry (Prunus avium) by single-spray treatments of a surfactant {a polymeric alkoxylated fatty amine [N,N-bis 2-(omega-hydroxypolyoxyethylene/polyoxypropylene) ethyl alkylamine]} and potassium nitrate in combination when applied at “tightbud,” ≈ 42 days (1 Feb. 1995) before full bloom and with surfactant and potassium nitrate in combination when 10% green calyx was apparent, 33 days before full bloom. Applying 2% surfactant (v/v) + 6% potassium nitrate (w/v) was most effective in advancing bloom, speeding progression through bloom, and advancing fruit maturity when applied at tightbud stage. Surfactant (2% or 4%) applied with 25% or 35% calcium nitrate (w/v) on 2 Feb. 1996 significantly advanced full bloom compared to nontreated controls. Fruit maturity (1995) was somewhat advanced by surfactant–nitrate treatments, but fruit set and final fruit weight were equivalent among treatments. No phytotoxicity was noted in foliage or fruit. In California, marginal and insufficient winter chilling often causes irregular, extended, or delayed bloom periods, resulting in poor bloom-overlap with pollenizers. As a result, flower and fruit development may be so variable as to have small, green and ripe fruit on the same tree, making harvest more time consuming and costly. Data indicate that this surfactant, in combination with a nitrogenous compound, has potential to advance reproductive budbreak and advance maturity in sweet cherry without reducing fruit set or fruit size. Advancing the ripening time of sweet cherry even 2 to 3 days can increase the price received per 8.2-kg box by $10 to $20.

scholarly journals ASSESSMENT OF SWEET CHERRY (PRUNUS AVIUM L.) GENOTYPES GROWN IN CONDITIONS OF ROMANIAN NORTHEASTERN AREA

2021 ◽  
Vol 10 (19) ◽  
pp. 476-481
Author(s):  
Margareta Corneanu ◽  
Iuliana Elena Golache ◽  
Elena Iurea ◽  
Iulia Mineață ◽  
Sorina Sîrbu
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Research Station ◽  
Phenological Stages ◽  
Climate Conditions ◽  
Fruit Growing ◽  
New Varieties ◽  
Chemical Traits ◽  
Sweet Cherry Cultivars ◽  
Physical And Chemical

The soil and climate conditions in Romanian Northeastern area are favorable for cherry cultivation, but some times can occurred some calamities. The paper presents a study which during 2020 at the Research Station for Fruit Growing (N-E of Romania), using five sweet cherry genotypes as research material: ‘Van’, ‘Croma’, ‘Elaiași’, ‘HC920402’, ‘HC930208’. Observations and determinations were performed in regards to the frostdamages, the main growing and phenological stages and the physical and chemical traits of the fruit. The phenological stages were evaluated for beginning of flowering and fruit ripening (expressed in growing degree-days, GDD). For these sweet cherry cultivars, the highest values concerning the fruit’s weight have been recorded for ‘Elaiași’ (9.15 g) and ‘HC920402’ (7.7 g), while fruit’s equatorial diameter have ranged between 23.21 mm and 25.16 mm. The content of soluble dry solids (SDS) was between 14.6 and 20.2 °Brix. The proposed objective aims at introducing in the assortment the new varieties with quality fruits and their resistance to cracking, with ripening time at the extremities of the sweet cherry season.

The effect of Candidatus Phytoplasma pruni infection on sweet cherry fruit

2021 ◽  
Author(s):  
Alice Ann Wright ◽  
Madalyn K Shires ◽  
Christopher Beaver ◽  
Garrett Bishop ◽  
S. Tianna Dupont ◽  
...  
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Early Stage ◽  
Sugar Content ◽  
Fruit Size ◽  
Disease Symptoms ◽  
Small Fruit ◽  
Eastern Washington ◽  
Sweet Cherry Cultivars ◽  
Metabolite Content

In sweet cherry (Prunus avium L.), infection by Candidatus Phytoplasma pruni results in small fruit with poor color and taste, rendering the fruit unmarketable. Yet, the disease pathology is poorly understood, particularly at the cultivar level. Therefore, in this study we examined the physiological effects of Ca. P. pruni infection across a range of cultivars and locations within eastern Washington. We found that infection could be separated into early and established stages based on pathogen titer, that correlated with disease severity, including fruit size, color, and sugar and metabolite content. Furthermore, we also observed that the effects of early-stage infections were largely indistinguishable from healthy, uninfected plants. Cultivar and location-specific disease outcomes were observed with regards to size, color, sugar content, and citric acid content. This study presents the first in-depth assessment of X-disease symptoms and biochemical content of fruit from commercially grown sweet cherry cultivars known to be infected with Ca. P. pruni.

Flowering and Fruiting of `Burlat' Sweet Cherry on Size-controlling Rootstock

HortScience ◽  
1994 ◽  
Vol 29 (6) ◽  
pp. 611-612 ◽  
Author(s):  
Frank Kappel ◽  
Jean Lichou
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Fruit Size ◽  
Fruit Weight ◽  
Prunus Cerasus ◽  
Sweet Cherries ◽  
One Year ◽  
Size Controlling

The effect of rootstock on the flowering and fruiting response of sweet cherries (Prunus avium L.) was investigated using 4-year-old branch units. The cherry rootstock Edabriz (Prunus cerasus L.) affected the flowering and fruiting response of `Burlat' sweet cherry compared to Maxma 14 and F12/1. Branches of trees on Edabriz had more flowers, more flowers per spur, more spurs, more fruit, higher yields, smaller fruit, and a reduced fruit set compared to the standard rootstock, F12/1. One-year-old branch sections had more flowers and fruit, higher fruit weight, and heavier fruit size compared to older branch portions.

scholarly journals Field evaluations of 14 sweet cherry cultivars as pollinators for cv. Regina (Prunus avium, L.)

2007 ◽  
Vol 13 (3) ◽  
Author(s):  
S. Thurzó ◽  
M. Grandi ◽  
L. Lagezza ◽  
S. Lugli ◽  
I. J. Holb ◽  
...  
Keyword(s):  
Fruit Development ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Allele Group ◽  
Sufficient Degree ◽  
S Allele ◽  
Sweet Cherry Cultivars ◽  
Prunus Avium L

In this study, the pollen of 14 sweet cherry cultivars (‘Anella’, ‘Duroni 3', 'Badacsony', 'Cristalina', 'Ferbolus', 'Ferrovia', 'Georgia', 'Hudson', 'Kordia', 'Sam', 'Schneiders’, ‘Spate’, ‘Knorpelkirsche', 'Skeena', 'Summit', 'Sylvia') was used to fertilize the emasculated flowers of sweet cherry cv. 'Regina'. Fruit set was assessed three times during fruit development: 14 May, 30 May and 27 May 2007. We observed full incompatibility among the 14 cultivars for cv. 'Cristalina', which is in the same S-allele group as cv. 'Regina'. After analysis of our data, we have results about fertilization efficiency of the cultivars. Most of the evaluated cultivars are inadequate to fertilize cv. 'Regina' to a sufficient degree. There were two exceptions, cv. 'Sam' and cv. 'Skeena', where percentage of ripened fruits was above 20%. These two cultivars can guarantee such a pollination, which ensures ample quantity of ripened fruits. Results of this study have proved three other cultivars to be quite good pollinators for cv. 'Regina'. In conclusion, ideal pollinators for cv. 'Regina' could be — apart from above-mentioned two cultivars, 'Sam' and 'Skeena' — cvs. 'Sylvia' and 'Bianca', which was suggested by more literature sources.

13N0770 (Stardust™) sweet cherry

2009 ◽  
Vol 89 (4) ◽  
pp. 713-716 ◽  
Author(s):  
F Kappel ◽  
R A MacDonald ◽  
M Cliff ◽  
D -L Mckenzie
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Size ◽  
Research Centre ◽  
Fruit Breeding ◽  
Food Research ◽  
The Pacific ◽  
Cultivar Description ◽  
Wide Scale ◽  
Commercial Testing

13N0770 (Stardust™) is a late-maturing blush sweet cherry (Prunus avium L.) that has been released by the Pacific Agri-Food Research Centre (PARC-Summerland), Agriculture and Agri-Food Canada at Summerland, BC. The release is part of the on-going sweet cherry breeding program that began in 1936 (Kappel and Lay 1997). Stardust™ is the latest-maturing blush or bi-colored cultivar released from PARC-Summerland and has very good fruit size, firmness, and is self-fertile. It was released to growers for wide scale commercial testing in 2002.Key words: Prunus avium, fruit breeding, cultivar description

scholarly journals Pomological properties of sweet cherry cultivars grafted on ‘colt’ rootstock

2013 ◽  
Vol 58 (1) ◽  
pp. 61-72 ◽  
Author(s):  
Dragan Milatovic ◽  
Dejan Djurovic ◽  
Boban Djordjevic ◽  
Todor Vulic ◽  
Gordan Zec
Keyword(s):  
Sweet Cherry ◽  
Fruit Set ◽  
Fruit Size ◽  
Fruit Characteristics ◽  
Early Season ◽  
Late Season ◽  
Commercial Cultivation ◽  
Fruit Cracking ◽  
Physical Chemical ◽  
Sweet Cherry Cultivars

Pomological properties of 11 newly sweet cherry cultivars grafted on Colt rootstock were studied in the region of Macva over a three-year period (2010- 2012). An investigation has included phenological traits (flowering and maturing), the elements of productivity (number of flowers in an inflorescence, fruit set and yield), the most important fruit characteristics (physical, chemical and sensory), and fruit cracking index. Average time of flowering of tested cultivars was in the first and the second decade of April, while the maturing time was between 15 May (?Early Lory?) and 20 June (?Penny?). The highest yield was achieved by cultivars ?Giorgia?, ?Sunburst?, and ?Crystalina?. Large fruit size was found in cultivars ?Penny?, ?Santina?, ?Sunburst?, ?Olympus?, and ?Kordia?. The lowest susceptibility to fruit cracking was manifested in cultivars ?Early Lory? and ?Giorgia?. Cultivars ?Kordia? and ?Cristalina? were given the highest sensory ratings. Overall, the best results were shown by medium-early season cultivar ?Santina?, which can be recommended for commercial cultivation. In addition, the early-season cultivar ?Early Lory?, and the late-season cultivar ?Kordia? can also be recommended for cultivation.

scholarly journals Rootstock evaluation in intensive sweet cherry (Prunus avium L.) orchard

2009 ◽  
Vol 15 (3) ◽  
Author(s):  
K. Hrotkó ◽  
L. Magyar ◽  
S. Hoffman ◽  
M. Gyeviki
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Size ◽  
Fruit Weight ◽  
Cumulative Yield ◽  
Yield Production ◽  
Canopy Volume ◽  
Significant Difference ◽  
Cherry Orchard ◽  
Sweet Cherry Cultivars

During 2000 and 2007, rootstocks of different vigor have been tested in a high density sweet cherry orchard with 'Vera '® and 'Axel'® cultivars at 4 x 2 meter row and plant distance. Trees are trained to Hungarian Spindle with permanent basal branches; in the alley way naturally grown grass is managed by mowing. The first considerable fruiting was in 2004. Every year we measured trunk and canopy parameters of the trees, productivity and fruit size. Our conclusion is that the rootstocks considerably affected the growth, precocity, as well as tree and orchard productivity, fruit weight of sweet cherry cultivars, but these rootstock effects are modified by cultivars, except for growth vigor. According to our results Cema, SL 64, and Bogdany are vigorous rootstocks, moderate vigorous are MaxMa 97, Pi-Ku I , and Tabel® Edabriz, Gisela® 5 and Prob are dwarfing rootstocks. Besides the precocious Gisela® 5 also mahaleb rootstocks CEMA, Bogdany and SL 64 showed considerable precocity, which can be explained by the larger bearing surface to the time of turning to bearing, and a similar or relative large density of burse shoots on fruiting branches. Cumulative yield of 'Axel'® was the highest on Bogdany and on Cerna, contrary to Gisela® 5, which produced only 50% of the previous ones. Cumulative yield of 'Vera'® was the highest on SL 64, and no significant difference was found, compared to trees on rootstocks Cema, Bogdany and Pi-Ku I . Cumulative yield production of trees was smaller on Gisela® 5, Prob, Max Ma 97 and Tabel® Edabriz rootstocks. Corresponding to the literature data of yield efficiency calculated on TCSA basis was highest on Gisela® 5 rootstock. but the efficiency calculated on canopy volume of 'Axel•® trees was similarly high on CEMA and Bogdany, and that of 'Vera'® trees relatively high on CEMA, Bogdany, SL 64 and PiKu I rootstocks. When calculating orchard efficiency al spacing 4 x 2 meters (1250 tree/ha), we received highest yield values on Bogdany, CEMA, SL 64, and PiKu I rootstocks, with large fruit weight. Rootstocks also affect fruit weight. We measured the largest fruit weight on trees on Bogdany.

scholarly journals Genotypic Differences in Sweet Cherry Fruit Size are Primarily a Function of Cell Number

2007 ◽  
Vol 132 (5) ◽  
pp. 697-703 ◽  
Author(s):  
James W. Olmstead ◽  
Amy F. Iezzoni ◽  
Matthew D. Whiting
Keyword(s):  
Structural Changes ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Cultural Practices ◽  
Fruit Size ◽  
Cell Number ◽  
Cell Length ◽  
Genotypic Differences ◽  
Fresh Market ◽  
Sweet Cherry Cultivars

Understanding the genetic control of fruit size in sweet cherry (Prunus avium L.) is critical for maximizing fruit size and profitable fresh market production. In cherry, coordinated cycles of cell division and expansion of the carpel result in a fleshy mesocarp that adheres to a stony endocarp. How these structural changes are influenced by differing genetics and environments to result in differing fruit sizes is not known. Thus, the authors measured mesocarp cell length and cell number as components of fruit size. To determine the relative genotypic contribution, five sweet cherry cultivars ranging from ≈1 to 13 g fresh weight were evaluated. To determine the relative environmental contribution to fruit size, different-size fruit within the same genotype and from the same genotype grown in different environments were evaluated. Mesocarp cell number was the major contributor to the differences in fruit equatorial diameter among the five sweet cherry cultivars. The cultivars fell into three significantly different cell number classes: ≈28 cells, ≈45 cells, and ≈78 cells per radial mesocarp section. Furthermore, mesocarp cell number was remarkably stable and virtually unaffected by the environment as neither growing location nor physiological factors that reduced final fruit size significantly altered the cell numbers. Cell length was also significantly different among the cultivars, but failed to contribute to the overall difference in fruit size. Cell length was significantly influenced by the environment, indicating that cultural practices that maximize mesocarp cell size should be used to achieve a cultivar's fruit size potential.

scholarly journals Variable fruit set in self-fertile sweet cherry

2001 ◽  
Vol 81 (4) ◽  
pp. 753-760 ◽  
Author(s):  
Cheol Choi, and Robert L. Andersen
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Spring Frost ◽  
Self Pollination ◽  
Frost Injury ◽  
Sweet Cherries ◽  
Fruit Setting ◽  
S Allele ◽  
Sweet Cherry Cultivars

Fruit set on seven self-fertile (SF) sweet cherry genotypes from the Cornell Sweet Cherry Breeding Program was investigated. The S-alleles of all tested genotypes, based on controlled pollination and PCR-based S-allele typing analysis were determined to be: S1S4’ for Lapins, and S3S4’ for Stella, Starkrimson, NY 13688, NY 13696, NY 13788 and NY 13791. Higher fruit set of open-pollinated self-fertile genotypes indicated that the additional pollen donor was probably advantageous for fruit set in self-fertiles in the preliminary field study. However, no statistically significant differences were found between fully and self- (half compatible) pollination in caged trees in subsequent years’ studies. This inconsistency may have been due to shading by cages (for self-pollination only) or to differences in bee activity in caged trees as compared with open-pollinations made during preliminary studies. Additionally, the variation in fruit setting potential was dependent on genotype. Spring frost injury reduced fruit setting potential in self-fertile sweet cherries but pollen quality was not associated with variable fruit set. The results suggest that self-pollination would produce optimal fruit set in self-fertile sweet cherry cultivars regardless of partial pollen incompatibility. However, a more detailed study including fruit setting factors other than spring frost injury, and varying setting capacity depending on genotypes, would be required for a more complete determination of the commercial utility of growing self-fertile sweet cherries in solid blocks. Key words: Prunus avium L, sweet cherry, pollination, fruit set

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