scholarly journals Factors influencing fruit set and quality in different sweet cherry cultivars

2010 ◽  
Vol 8 (4) ◽  
pp. 1118 ◽  
Author(s):  
F. Garcia Montiel ◽  
M. Serrano ◽  
D. Martinez-Romero ◽  
N. Alburquerque
Keyword(s):  
Sweet Cherry ◽  
Fruit Set ◽  
Factors Influencing ◽  
Sweet Cherry Cultivars

scholarly journals Examination of the Suitability of Different Pollinators for Four Sweet Cherry Cultivars Commonly Grown in Poland

2014 ◽  
Vol 22 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Agnieszka Głowacka ◽  
Elżbieta Rozpára
Keyword(s):  
Flowering Time ◽  
Good Yield ◽  
Sweet Cherry ◽  
Fruit Set ◽  
Satisfactory Yield ◽  
Economic Significance ◽  
Fruit Setting ◽  
Sweet Cherry Cultivars

AbstractThe aim of the work was to select pollinators for sweet cherry cultivars: ‘Vanda’, ‘Techlovan’, ‘Syl–via’ and ‘Regina’, which are of great economic significance in Poland. As pollinators, three or four different cultivars with the same or similar flowering time as the pollinated cultivars were evaluated annually. The pollinators belonged to different incompatibility groups. Pollination was carried out over four consecutive seasons. Assuming that for a good yield more than 20% of the flowers should develop fruits, a good polli–nator for the cv. ‘Vanda’ was ‘Techlovan’, and for the cv. ‘Regina’ - ‘Sylvia’. The cv. ‘Techlovan’ was pollinated to best effect by ‘Vega’, and the cv. ‘Sylvia’ by ‘Regina’, but the setting of fruits in the last two combinations was moderately good. Low to moderately good fruit setting but depending on the year was observed in the combinations ‘Sylvia’ x ‘Summit’, ‘Regina’ x ‘Summit’, and ‘Regina’ x ‘Rainier’. Cultivar ‘Summit’ for ‘Sylvia’, and ‘Summit’ and ‘Rainier’ for the cv. ‘Regina’ should not be used as pollinators because the low percentage of fruit set obtained annually does not guarantee a satisfactory yield.

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 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.

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 Ovule senescence and unusual pollen tube growth in the ovary of sweet cherry as affected by pistilar genotype and temperature

2019 ◽  
Vol 16 (4) ◽  
pp. e0704 ◽  
Author(s):  
Sanja Radičević ◽  
Radosav Cerović ◽  
Milena Đorđević
Keyword(s):  
Pollen Tube ◽  
Pollen Tube Growth ◽  
Sweet Cherry ◽  
Fruit Set ◽  
Tube Growth ◽  
Open Pollination ◽  
Air Temperatures ◽  
Complex Dependence ◽  
Microscopy Method ◽  
Sweet Cherry Cultivars

The study of ovule senescence in the ovaries of four sweet cherry cultivars (‘Karina᾿, ‘Kordia᾿, ‘Regina᾿ and ‘Summit᾿) in the environmental conditions of West Serbia was carried out. Monitoring of ovaries was performed using the fluorescence microscopy method, on emasculated and pollinated flowers (cross-pollination variant), non-emasculated open-pollinated flowers (open pollination variant), and emasculated unpollinated flowers (unpollinated variant). In cross- and open pollination variants, the rate of unusual pollen tube growth in the ovary, fertilization percentage and fruit set were determined. The tendency in the appearance of fluorescence, as an indicator of ovule senescence, showed strong genotypic dependence ‒ it was the most and the least pronounced in the ovaries of ‘Kordia’ and ‘Regina’, respectively, in all the flower categories. Investigation of unusual pollen tube growth, fertilization percentage and fruit set, considered from the aspect of ovule senescence and cultivars’ behaviour as female (pollinated), pointed to their specific relations and complex dependence on the air temperature before and during the flowering. Flower emasculation and pollination also influenced ovule senescence, and this impact was unequal by genotypes, i.e. those having better ovule vitality in general, had also better ovule vitality in the conditions of emasculation, and pollination absence. The results imply different adaptation of cultivars to higher temperatures before and during the flowering, pointing to the further investigation related to the good adaptability of genotypes to air temperatures in reproductive sense, which is a basic indicator of good adaptability in general.

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

scholarly journals Flowering time and incompatibility groups: Cultivar combination in commercial sweet cherry (Prunus avium L.) orchards

Genetika ◽  
2011 ◽  
Vol 43 (2) ◽  
pp. 397-406 ◽  
Author(s):  
Sanja Radicevic ◽  
Radosav Cerovic ◽  
Sladjana Maric ◽  
Milena Djordjevic
Keyword(s):  
Flowering Time ◽  
Environmental Conditions ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Full Flowering ◽  
Sweet Cherry Cultivars ◽  
Prunus Avium L ◽  
Pollination And Fertilization

The paper presents results of eight-year study (1999-2006) of flowering phenophase in 21 introduced sweet cherry cultivars grown under the agro-environmental conditions of West Serbia. Flowering time, as well as progress and abundance of flowering were studied, and classification of the studied cultivars according to flowering time was derived. On the basis of mean several-year overlap in phenophase of full flowering and on the grounds of so far known data on classification of these cultivars among incompatibility groups, we have offered a recommendation for their cultivation in orchards whereby the most effective pollination and fertilization can be ensured as well as good fruit-set and satisfactory fruit yields.

scholarly journals Abnormal Anther and Pollen Development in Sweet Cherry Cultivars Resulting from Lack of Winter Chilling

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 684d-684
Author(s):  
K.G. Weis ◽  
S.M. Southwick ◽  
Michael E. Rupert
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
Pollen Dispersal ◽  
Central Valley ◽  
Anther Dehiscence ◽  
Floral Differentiation ◽  
Pollen Growth ◽  
Pollen Sacs ◽  
Sweet Cherry Cultivars

Lack of pollen dispersal was noted in various sites and cultivars of sweet cherry (Prunus avium) following one of California's warmest recorded winters (≈550 hours @ 7°C in the Central Valley). `Bing' cherry is thought to require 850 to 880 hours for adequate budbreak and bloom development. Cross pollination is required by most sweet cherry cultivars for fruit set, including `Bing'. Complete anther dehiscence averaged 13% in `Bing' trees sampled, compared to 52% in `Rainier', 65% in `Brooks', 84.5% in `Burlat', 33% in Van, 23% in `Larian', and 86% in `Black Tartarian'. A range of degree of dehiscence from none to half-open was widely apparent, again by cultivar. Many partially dehiscent anthers did not shed pollen normally but appeared to have the mass of pollen completely adherent inside the pollen sacs. `Black Tartarian', `Larian', and `Burlat' shed pollen readily, however, pollen from dehiscent anthers of other cultivars generally appeared to stick together on the everted locule walls and required direct manipulation to be withdrawn from the pollen sac. Anther morphology ranged from normal size to half normal size, anthers appearing to be without pollen altogether that shriveled on drying, and lobes that were aborted. Pollen germination was low overall: 19% `Bing', 18% `Rainier', 20% `Brooks', 57% `Burlat', 14% `Van', 48% `Larian', and 48% `Black Tartarian'. Poor fruit set in low chill years is often attributed to lack of bloom overlap with pollenizers, however, inadequate chilling also may contribute to low fruit set by inhibiting anther and pollen growth and development. The implications of a critical chilling requirement for normal floral differentiation are that in cherry-growing areas where low chill years are common, pollen may not be viable or transferrable from pollenizers and female gametophytic development also may be impaired.

scholarly journals Self-fertility studies of some sweet cherry (Prunus avium L.) cultivars and selections

2004 ◽  
Vol 10 (4) ◽  
Author(s):  
Zs. Békefi
Keyword(s):  
Significant Relationship ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Set ◽  
The Other ◽  
Open Pollination ◽  
Pollen Transfer ◽  
Self Pollination ◽  
Sweet Cherry Cultivars ◽  
Prunus Avium L

Fruit set of two sweet cherry cultivars (Alex' and 'Stella' ) and four Hungarian selections have been studied over two years following open pollination, unassisted self-pollination (autogamy) and artificial self-pollination (geitonogamy). Among accessions 'IV-6/240' proved to be self-sterile, while the other five revealed to be self-fertile. Significant differences have been found in fruit set among years and among pollination treatments but not among self-fertile accessions. Fruit set following unassisted self-pollination was significantly lower than of other pollination treatments. Thus pollen transfer is essential for profitable yield in sweet cherry growing. There was no significant relationship in the fruit set of open- and self-pollination.

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