CHILLING AND HEAT REQUIREMENTS FOR BUDBREAK AND FRUITING OF "ANNA" AND "DORSETT GOLDEN" APPLE CULTIVARS UNDER WARM CLIMATIC CONDITIONS

2001 ◽  
pp. 103-108 ◽  
Author(s):  
S.Z. El-Agamy ◽  
A.K.A. Mohamed ◽  
F.M.A. Mostafa ◽  
A.Y. Abdallah
Keyword(s):  
Climatic Conditions ◽  
Apple Cultivars ◽  
Heat Requirements

scholarly journals The Perspective of Croatian Old Apple Cultivars in Extensive Farming for the Production of Functional Foods

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 708
Author(s):  
Boris Duralija ◽  
Predrag Putnik ◽  
Dora Brdar ◽  
Anica Bebek Markovinović ◽  
Sandra Zavadlav ◽  
...  
Keyword(s):  
Functional Foods ◽  
Geographical Location ◽  
Nutritional Composition ◽  
Climatic Conditions ◽  
Biologically Active ◽  
Biological Potential ◽  
Apple Cultivars ◽  
The Republic ◽  
Processed Form ◽  
Extensive Farming

The Republic of Croatia has a long tradition of fruit growing due to its geographical location, climatic conditions, and high quality of fruit crops, especially apple fruits. Apples can be used for the formulation of functional foods either in processed form (e.g., juice), or as a by-product (e.g., apple pomace). However, there is a growing demand for functional foods derived from ancient and traditional plant sources as they are recognized as a very valuable source of health-promoting bioactive ingredients. Similarly, old apple cultivars (Malus domestica Borkh.) are characterized by good morphological and pomological properties, less need for chemicals during cultivation and the higher share of biologically active compounds (BACs) with better sensory acceptability compared to commercial cultivars. However, their nutritional and biological potential is underestimated, as is their ability to be processed into functional food. The importance in preserving old apple cultivars can also be seen in their significance for improving the nutritional composition of other apple cultivars through innovative cultivation strategies, and therefore old local apple cultivars could be of great importance in future breeding programs.

Comparison of phenotypic methodologies to characterize chilling and heat requirements of peach and apple cultivars

2017 ◽  
pp. 349-354 ◽  
Author(s):  
G. Lalanne-Tisné ◽  
J. Quero-García ◽  
M. Lafargue ◽  
J. Joly ◽  
L. Fouilhaux ◽  
...  
Keyword(s):  
Apple Cultivars ◽  
Heat Requirements

Physical and Chemical Compositional Characterization of Six Apple Cultivars

2014 ◽  
Vol 971-973 ◽  
pp. 131-134
Author(s):  
Xian Jun Meng ◽  
Li Yan Gong ◽  
Guo Hui Huang ◽  
Nai Qiao Liu ◽  
Jin Feng Bi ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Chemical Characterization ◽  
Climatic Conditions ◽  
Apple Varieties ◽  
Physical Attributes ◽  
Apple Cultivars ◽  
Physical And Chemical ◽  
Compositional Characterization ◽  
And Chemical Properties

Physical and chemical properties of 6 apple varieties were measured to gain the variations. The qualities of apples are important for the consumer. These quality attributes can be described by colour, texture and physical attributes such as size and shape. Individual sugars, organic acids, and vitamin C were quantified in six apple cultivars with same soil, climatic conditions and altitudes. The results showed physical and chemical characterization existed different variance in apple varieties, the variance ranged from 6.1% to 109.05%. Fructose was the most dominant sugar in the different apple cultivars, followed by glucose and sucrose, while malic acid was the principal organic acid.

scholarly journals The suitability of Finnish climate for fire blight (Erwinia amylovora) epidemics on apple

2015 ◽  
Vol 24 (1) ◽  
pp. 59-66
Author(s):  
Mariela Marinova-Todorova ◽  
Jukka Ranta ◽  
Salla Hannunen
Keyword(s):  
Fire Blight ◽  
Erwinia Amylovora ◽  
Climatic Conditions ◽  
Epidemiological Model ◽  
Apple Cultivar ◽  
Apple Cultivars ◽  
Important Disease ◽  
Annual Period

Fire blight, which is an important disease of apples and pears, has never been detected in continental Finland. In this study the suitability of the Finnish climate for apple blossom blight infections by Erwinia amylovora was evaluated with the epidemiological model MaryblytTM. This was done in fourteen locations, and for two apple cultivars differing in flowering times. Climatic conditions were predicted to be suitable for blossom infections in 18 - 51% of the years, and the annual period of suitable conditions was predicted to last up to two to five days, depending on the location and apple cultivar. The suitable period was predicted to be longer in some locations in central Finland than in those in the southernmost parts of the country. Based on these results the official surveys that are carried out to confirm the absence of fire blight in Finland cannot be targeted only to some parts of the country.

scholarly journals Effect of 'Gutingen V' as an intensive training system on agromorphological characters of some apple cultivars in Karaj region of Iran

Genetika ◽  
2010 ◽  
Vol 42 (2) ◽  
pp. 331-338 ◽  
Author(s):  
Ahmad Dadashpour ◽  
Alireza Talaei ◽  
Ali Shahi-Gharahlar
Keyword(s):  
Irrigation System ◽  
Tree Height ◽  
Fruit Trees ◽  
Climatic Conditions ◽  
Training System ◽  
Research Station ◽  
Cross Sectional ◽  
Yield Efficiency ◽  
Intensive Training ◽  
Apple Cultivars

V-shape systems represent an efficient and popular option to increase yields and fruit quality in fruit trees. Hence, this paper attempts to compare some vegetative and yield characteristics of five apple cultivars grown at horticultural research station in Karaj, Iran. The selected apple cultivars were included: 'Golab-kohans' (Iranian cultivar), 'Fuji', 'Gala', 'Starking' and 'Delbar estival' (commercial foreign cultivars) that were grafted on M.9 rootstock which were trained in a V system. All of these trees were planted in winter 2005. The time of irrigation started from the second experimental year after planting and the method of irrigation was drip irrigation system. Results showed that the 'Golab-kohans' had the most tree height (278.63 cm), trunk cross sectional area (7.308 cm2) and mean shoot length (100.58 cm). Also 'Delbar estival' had the most yield (0.98 kg), yield efficiency (0.550 kg/cm2). Consistently, Results revealed that among the investigated cultivars, 'Delbar estival' can be introduced as a prone and productive cultivar for V system in Karaj's climatic conditions.

scholarly journals Blooming under Mediterranean Climate: Estimating Cultivar-Specific Chill and Heat Requirements of Almond and Apple Trees Using a Statistical Approach

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 760 ◽  
Author(s):  
Isabel Díez-Palet ◽  
Inmaculada Funes ◽  
Robert Savé ◽  
Carmen Biel ◽  
Felicidad de Herralde ◽  
...  
Keyword(s):  
Mediterranean Climate ◽  
Fruit Trees ◽  
Growing Degree Hours ◽  
Temperate Deciduous ◽  
Deciduous Fruit ◽  
Apple Cultivars ◽  
Heat Requirements ◽  
Pls Analysis ◽  
Temperature Records ◽  
Chill Portions

Climate change, and specifically global temperature increase, is expected to alter plant phenology. Temperate deciduous fruit trees have cultivar-specific chill and heat requirements to break dormancy and bloom. In this study, we aimed to estimate chill and heat requirements (in chill portions, CP, and growing degree hours, GDH, respectively) of 25 almond (30–36 years) and 12 apple (14–26 years) cultivars grown under a Mediterranean climate. The set included early and late blooming genotypes. Long-term phenological and temperature records were analyzed by means of partial least squares (PLS) regression. The main difference between early and late genotypes was chill requirement, ranging from 8.40 CP of early genotypes to 55.41 CP of extra-late genotypes. However, as chill requirements are quite easily attained by all almond cultivars in this study, year-to-year variations in actual blooming dates for each genotype are governed by variability of mean forcing temperatures. In contrast, different chill and heat combinations resulted in similar mean blooming dates for the studied apple cultivars. Mean temperature in both chilling and forcing phases determined their blooming time in the location studied. Overlaps and gaps between both phases were obtained. Despite some limitations, the PLS analysis has proven to be a useful tool to define both chilling and forcing phases. Nevertheless, since the delineation of these phases determine the total amount of CP and GDH, further efforts are needed to investigate the transition of these phases.

Contrasting bloom dates in two apple cultivars linked to differential levels of phytohormones and heat requirements during ecodormancy

2021 ◽  
Vol 288 ◽  
pp. 110413
Author(s):  
Sangeeta Sapkota ◽  
Jianyang Liu ◽  
Md Tabibul Islam ◽  
Pratibha Ravindran ◽  
Prakash P. Kumar ◽  
...  
Keyword(s):  
Apple Cultivars ◽  
Heat Requirements

scholarly journals Discerning between Two Tuscany (Italy) Ancient Apple cultivars, ‘Rotella’ and ‘Casciana’, through Polyphenolic Fingerprint and Molecular Markers

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1758
Author(s):  
Ermes Lo Piccolo ◽  
Ambra Viviani ◽  
Lucia Guidi ◽  
Damiano Remorini ◽  
Rossano Massai ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Antiradical Activity ◽  
Economic Value ◽  
Climatic Conditions ◽  
Internal Transcribed Spacers ◽  
Phenolic Profile ◽  
Apple Cultivars ◽  
Abundance Profile ◽  
Polyphenolic Profile ◽  
Its1 And Its2

Ancient apple cultivars usually have higher nutraceutical value than commercial ones, but in most cases their variability in pomological traits does not allow us to discriminate among them. Fruit of two Tuscany ancient apple cultivars, ‘Casciana’ and ‘Rotella’, picked from eight different orchards (four for each cultivar) were analyzed for their pomological traits, organoleptic qualities, polyphenolic profile and antiradical activity. The effectiveness of a polyphenol-based cluster analysis was compared to molecular markers (internal transcribed spacers, ITS1 and ITS2) to unequivocally discern the two apples. ‘Casciana’ and ‘Rotella’ fruit had a higher nutraceutical value than some commercial cultivars, in terms of phenolic abundance, profile and total antiradical activity. Although pedo-climatic conditions of different orchards influenced the phenolic profile of both apples, the polyphenolic discriminant analysis clearly separated the two cultivars, principally due to higher amounts of procyanidin B2, procyanidin B3 and p-coumaroylquinic acid in ‘Casciana’ than in ‘Rotella’ fruit. These three polyphenols can be used proficiently as biochemical markers for distinguishing the two apples when pomological traits cannot. Conversely, ITS1 and ITS2 polymorphism did not allow us to distinguish ‘Casciana’ from ‘Rotella’ fruit. Overall, the use of polyphenolic fingerprint might represent a valid tool to ensure the traceability of products with a high economic value.

Sign in / Sign up

Export Citation Format

Share Document