{"id":11568,"date":"2018-06-13T08:56:38","date_gmt":"2018-06-13T05:56:38","guid":{"rendered":"https:\/\/agrology.eu.116-202-233-51.rulerhost.com\/en\/?p=11568"},"modified":"2026-02-27T10:29:26","modified_gmt":"2026-02-27T08:29:26","slug":"color-firmness-improvement-fuji-apples","status":"publish","type":"post","link":"https:\/\/www.agrology.eu\/en\/agrology-success-stories\/color-firmness-improvement-fuji-apples\/","title":{"rendered":"Agrology Success Stories: Color and Firmness Improvement in Fuji Apples"},"content":{"rendered":"\n<p class=\"has-small-font-size\"><strong>Important Note:<\/strong> In line with our commitment to continuous innovation, Agrology has recently replaced Carpohos\u00ae, mentioned in the referenced article, with Titonic\u00ae Carpophos. This advanced product is part of our <strong>Functional Crop Nutrition\u00ae<\/strong> line and comes in the form of concentrated gel. Titonic\u00ae Carpophos is rich in Phosphorus and Calcium, and it is enhanced with bioactive Titanium through E-PerForm\u00ae Technology. It is specifically designed to improve fruit firmness and enhance fruit color, making it an ideal solution for optimizing crop quality.<\/p>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Michailidis Michail<sup>1<\/sup>, Karagiannis Evaggelos<sup>1<\/sup>, Pirotis Stavros<sup>2<\/sup>, Molasiotis Athanasios<sup>1<\/sup><\/p>\n\n\n\n<p><em><sup>1 Arboriculture Workshop, Department of Agriculture, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece<\/sup><\/em><\/p>\n\n\n\n<p><sup>2 <\/sup><em>Agrology SA, <em>Industrial area of Thessaloniki, 570 22, Sindos, Greece<\/em><\/em><\/p>\n\n\n\n<div style=\"height:39px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p>Red color is one of the main qualities in red apple varieties. Consumers prefer and choose apples mainly based on appearance, which is determined by the quality of the red coloring and the percentage of red fruit coating (<em>Lancaster and Dougall, 1992<\/em>). The dominant colorants responsible for the red coloration of the apples, not only contribute to the better appearance of the fruits, but at the same time enhance the metabolism and prevent cardiovascular problems in the human body (<em>de Pascual-Teresa et al., 2010<\/em>).<\/p>\n\n\n\n<p>The colorants formation and development in apples has been the subject of research for nearly a century (<em>Fletcher, 1929<\/em>) and depends on a variety of factors. The most important of these is the exposure of plants to abiotic stress, such as UV radiation (<em>Arakawa et al., 1985)<\/em>, the difference in maximum and minimum daily temperatures <em>(Blankenship, 1987<\/em>) and the nutritional state of the tree (<em>Chun, 2002<\/em>).<\/p>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading font-light md-title mb-3\">Experiment Goals<\/h2>\n\n\n\n<p>To improve the coloration of Fuji apples cultivated in lowland areas, the effect of&nbsp; Carpophos<sup>\u00ae<\/sup>&nbsp; (E<sup>2<\/sup>DA<sup>\u00ae<\/sup>&nbsp;Technology \u2013 Agrology) on the development of red apple variety Fuji Nagafu 12 was studied, as well as its effect on post-harvest fruit preservation. This variety was chosen as it lacks red color development, especially when grown in lowland areas.<\/p>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading font-light md-title mb-3\">General Information of Success Story&nbsp;<\/h2>\n\n\n\n<ul>\n<li><strong>Head of Success Story:<\/strong>&nbsp;Molasiotis Ath., Arboriculture Laboratory, Department of Agriculture, Aristotle University of Thessaloniki<\/li>\n\n\n\n<li><strong>Crop Period:<\/strong>&nbsp;2016<\/li>\n\n\n\n<li><strong>Location:<\/strong>&nbsp;Alexandria, Imathia<\/li>\n\n\n\n<li><strong>Crop:&nbsp;<\/strong>Apple<\/li>\n\n\n\n<li><strong>Variety:<\/strong>&nbsp;Fuji Nagafu 12<\/li>\n\n\n\n<li><strong>Trees Age:<\/strong>&nbsp;15 years<\/li>\n<\/ul>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading font-light md-title mb-3\">Agrology Crop Nutrition Program<\/h2>\n\n\n\n<p>Carpophos\u00ae was applied to a commercial orchard in Alexandria region on 15-year-old trees, var. \u2018Fuji Nagafu 12\u2019, in the form of a linear pulse modulation. Five trees were selected for the foliar application, with the solution applied at a pressure of 2.5 psi. The product was applied 14 days and 7 days before harvest (harvest date 29\/9\/2016) at a concentration of 40 cc Carpophos\u00ae&nbsp;in 8 liters of spray solution.<\/p>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading font-light md-title mb-3\">Measurements<\/h2>\n\n\n\n<p>The sampling of the fruits took place on the day of harvest in two zones (1st low zone: harvesting fruit on the tree up to 1.7 meters from the ground, 2nd high zone: harvesting fruit on the tree that was above 1.7 meters from the ground). In total, 140 kg of apples were harvested, approximately 70 kg per application (control and Agrology), of which 35 kg were placed in the low zone and 35 kg in the high zone.<\/p>\n\n\n\n<p>After harvest, the Fuji apples were transported to the laboratory, where a color determination was carried out. Color evaluation was performed with a colorimeter (model Minolta CR-200 Minolta, Osaka, Japan) in 150 apple fruits in Agrology treatment and in 150 apple fruits in the control.. The values in the coordinate system (a *) were then recorded. The a * value represents the color gradient from green (a * negative) to red (a * positive).<\/p>\n\n\n\n<p>In addition, a visual evaluation of 50 fruits with 3 replications per treatment was performed for the coating of the fruits in red in 3 classes<\/p>\n\n\n\n<ul>\n<li>1st class: fruits with a percentage of red skin of 0% to 20%<\/li>\n\n\n\n<li>2nd class: fruits with a percentage of red skin of 20% to 50%<\/li>\n\n\n\n<li>3rd class: fruits with a percentage of red skin of 50% to 100%<\/li>\n<\/ul>\n\n\n\n<p>Subsequently, flesh firmness was determined (Friction Firmness Tester). After 2, 4 and 6 months of cold preservation at 0 \u00b0 C, determination of flesh firmness, percentage of coating and color was also performed.<\/p>\n\n\n\n<p>Statistical analysis was performed (ANOVA) using the SPSS statistical packet (SPSSv21.0., Chicago, USA).<\/p>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading font-light md-title mb-3\">Results&nbsp;<\/h2>\n\n\n\n<p>The application of Carpophos\u00ae to this Success Story has contributed to:<\/p>\n\n\n\n<ul>\n<li><strong>Improve the Apples Red Color by 300% compared to the Control!<\/strong><\/li>\n<\/ul>\n\n\n\n<p>It was found that Carpophos\u00ae application increased the red color compared to the control. The application affected positively the development of intense red color (a * color) compared to the control (Picture 1).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full text-center w-100\"><img loading=\"lazy\" decoding=\"async\" width=\"835\" height=\"501\" src=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-1.-Red-color-indicator.-Skin-Red-color-of-150-apples-per-treatment.-Carpophos\u00ae-showed-300-improvement-in-red-color-compared-to-Control..png\" alt=\"Picture 1. Red color indicator. Skin Red color of 150 apples per treatment. Carpophos\u00ae showed 300% improvement in red color compared to Control.\" class=\"wp-image-13494\" srcset=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-1.-Red-color-indicator.-Skin-Red-color-of-150-apples-per-treatment.-Carpophos\u00ae-showed-300-improvement-in-red-color-compared-to-Control..png 835w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-1.-Red-color-indicator.-Skin-Red-color-of-150-apples-per-treatment.-Carpophos\u00ae-showed-300-improvement-in-red-color-compared-to-Control.-300x180.png 300w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-1.-Red-color-indicator.-Skin-Red-color-of-150-apples-per-treatment.-Carpophos\u00ae-showed-300-improvement-in-red-color-compared-to-Control.-768x461.png 768w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-1.-Red-color-indicator.-Skin-Red-color-of-150-apples-per-treatment.-Carpophos\u00ae-showed-300-improvement-in-red-color-compared-to-Control.-535x321.png 535w\" sizes=\"(max-width: 835px) 100vw, 835px\" \/><figcaption class=\"wp-element-caption\"><strong>Picture 1. Red color indicator.&nbsp;<\/strong>Red apple skin color of 150 apples per treatment. An improvement in the red color of the fruits was observed by the application of Carpophos\u00ae&nbsp;by 300% compared to the Control.<\/figcaption><\/figure>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul>\n<li><strong><strong>Increase of red apple coating<\/strong><\/strong><\/li>\n<\/ul>\n\n\n\n<p>In the visual evaluation of the red apple coating, <a href=\"https:\/\/www.agrology.eu\/en\/product\/titonic-carpophos\/\">Carpophos\u00ae <\/a>was differentiated from 0 to 20% and 50 to 100% in comparison with the Control. The Control Fuji apples classified as 1st class accounted for 65%, whereas the Carpophos\u00ae treated apples in the same class was 17%. In the third class, which was the Success Story\u2019s goal, the Control had 5%, while in the same class the fruits treated with Carpophos\u00ae&nbsp;ranged above 40% of the fruits (Picture 2).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized text-center w-100\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"334\" src=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture1-1.jpg\" alt=\"Picture 2. Red skin coat of 150 apples (75 low and 75 high tree zone) per treatment.\u00a0Statistically significant (*) differences were found based on T-test (T-test) for independent samples at significance level P \u2264 0,05.\u00a0On the right side (top picture), apples that have been treated with Carpophos\u00ae\u00a0have been identified. On the left side are the apples used as a Control.\" class=\"wp-image-16047\" style=\"width:758px;height:auto\" srcset=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture1-1.jpg 576w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture1-1-535x310.jpg 535w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><figcaption class=\"wp-element-caption\"><strong>P<em>icture 2. Red skin coat of 150 apples (75 low and 75 high tree zone) per treatment.<\/em><\/strong><em>&nbsp;Statistically significant (*) differences were found based on T-test (T-test) for independent samples at significance level P \u2264 0,05.<\/em>&nbsp;On the right side (top picture), apples that have been treated with Carpophos\u00ae&nbsp;have been identified. On the left side are the apples used as a Control.<\/figcaption><\/figure>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul>\n<li><strong><strong>Higher Resistance of Flesh to Mechanical Pressure (Hardness) in the preservation of apples in refrigeration for 2,4 and 6 months!<\/strong><\/strong><\/li>\n<\/ul>\n\n\n\n<p>With the application of Carpophos\u00ae an increase in Fuji apples shelf-life by 3,5 months, was observed. A higher resistance to mechanical stress of the fruit flesh was measured, even after 6 months of cold preservation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full text-center w-100\"><img loading=\"lazy\" decoding=\"async\" width=\"828\" height=\"452\" src=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-3.-Resistance-to-mechanical-pressure.png\" alt=\"Picture 3. Resistance to mechanical pressure\" class=\"wp-image-13495\" srcset=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-3.-Resistance-to-mechanical-pressure.png 828w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-3.-Resistance-to-mechanical-pressure-300x164.png 300w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-3.-Resistance-to-mechanical-pressure-768x419.png 768w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2018\/06\/Picture-3.-Resistance-to-mechanical-pressure-535x292.png 535w\" sizes=\"(max-width: 828px) 100vw, 828px\" \/><figcaption class=\"wp-element-caption\"><strong><em>Picture 3. Apple resistance in mechanical Pressure.&nbsp;<\/em><\/strong><em>With the application of Carpophos\u00ae, a higher resistance to mechanical stress of the fruit flesh was measured, even after 6 months of cold preservation.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul>\n<li><strong><strong>Improvement of the Quantitative Coating in red on the total surface of the fruit (% of the red-colored coating of the fruit)!<\/strong><\/strong><\/li>\n<\/ul>\n\n\n\n<p>Carpophos\u00ae presented differences compared to the Control regarding the fruit\u2019s color parameters after cold preservation (0\u00b0 C). In particular,increased red color was recorded, expressed by the color parameters a * and Hue angle (Figure 4 A and C). Also, an increase in the red color coverage rate, which varied in percentages that exceeded 45% for Carpophos\u00ae&nbsp;was observed and varied at all time points compared to the Control (Picture 4B).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized text-center w-100\"><img loading=\"lazy\" decoding=\"async\" width=\"1320\" height=\"1037\" src=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture2.png\" alt=\"Picture 4.\u00a0Effect of Carpophos\u00ae\u00a0on post-harvesting characteristics of apples. Apple color: Color display of 5 representative fruits per harvest treatment and after 2, 4 and 6 months of cold maintenance (0 \u00b0 C). Color parameters (A) Hue angle and (C) a * and (B) red colorful fruits after 2, 4 and 6 months of cold maintenance (0 \u00b0 C).\" class=\"wp-image-16048\" style=\"width:827px;height:650px\" srcset=\"https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture2.png 1320w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture2-768x603.png 768w, https:\/\/www.agrology.eu\/en\/wp-content\/uploads\/sites\/6\/2024\/08\/Picture2-535x420.png 535w\" sizes=\"(max-width: 1320px) 100vw, 1320px\" \/><figcaption class=\"wp-element-caption\"><strong><em>Picture 4.<\/em><\/strong><em>&nbsp;Effect of Carpophos\u00ae&nbsp;on post-harvesting characteristics of apples. Apple color: Color display of 5 representative fruits per harvest treatment and after 2, 4 and 6 months of cold maintenance (0 \u00b0 C). Color parameters (A) Hue angle and (C) a * and (B) red colorful fruits after 2, 4 and 6 months of cold maintenance (0 \u00b0 C).<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusions&nbsp;<\/h2>\n\n\n\n<ul>\n<li>Improve the Fuji apples\u2019 Red Color by 300% compared to the Control!&nbsp;&nbsp;<\/li>\n\n\n\n<li>Increase apples Shelf-life by 3.5 Months!&nbsp;&nbsp;<\/li>\n\n\n\n<li>Highest Resistance to Mechanical Pressure (Hardness) when preserved on cooling for 2, 4 and 6 months!&nbsp;&nbsp;<\/li>\n\n\n\n<li>Improvement of the Quantitative Coating in red on the total surface of the fruit (% of the red-colored coating of the fruit)!<\/li>\n<\/ul>\n\n\n\n<div style=\"height:56px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading font-light md-title mb-3\">Reference List<\/h2>\n\n\n\n<p>Blankenship, S.M. (1987). Night-temperatures effects on rate of apple fruit maturation and fruit quality. <em>Scientia Horticulturae <\/em>33, 205-212.<\/p>\n\n\n\n<p>Fletcher, L.A. (1929). A preliminary study of the factors affecting the red color on apple. Proceedings of the Society for <em>Horticultural Science<\/em>. 26, 191-196.<\/p>\n\n\n\n<p>Lancaster J.E. &amp; Dougall Dr. Donald K. (1992). Regulation of skin color in apples, <em>Critical<\/em> <em>Reviews in Plant Sciences<\/em>, 10:6, 487-502.<\/p>\n\n\n\n<p>de Pascual-Teresa S., Moreno, D. A., &amp; Garc\u00eda-Viguera, C. (2010). Flavanols and anthocyanins in cardiovascular health: a review of current evidence.&nbsp;<em>International Journal of Molecular Sciences<\/em>,&nbsp;11:4, 1679-1703.<\/p>\n\n\n\n<p>Arakawa, O., Hori, Y., &amp; Ogata, R. (1985). Relative effectiveness and interaction of ultraviolet\u2010B, red and blue light in anthocyanin synthesis of apple fruit.&nbsp;<em>Physiologia Plantarum<\/em>,&nbsp;64:3, 323-327.<\/p>\n\n\n\n<p>Chun, I. J., Fallahi, E., Colt, W. M., Shafii, B., &amp; Tripepi, R. R. (2002). Effects of rootstocks and microsprinkler fertigation on mineral concentrations, yield, and fruit color of &#8216;BC-2 Fuji&#8217;apple.&nbsp;<em>Journal of the American Pomological Society<\/em>,&nbsp;56:1, 4.<\/p>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Find out who is the responsible agronomist \u2013 seller of your area&nbsp;<a href=\"https:\/\/www.agrology.eu\/en\/contact\/\">HERE<\/a>!<\/strong><\/p>\n\n\n\n<p><em>\u201cThis experiment was conducted under specific field conditions and should not be applied as a standard without the guidance of an Agronomist or the Agrology Technical Department. In any case, Agrology <strong>Functional Crop Nutrition\u00ae<\/strong> products and programs must be applied according to the label or the instructions by Agrology\u2019s Agronomic R&amp;D specialists.\u201d<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Important Note: In line with our commitment to continuous innovation, Agrology has recently replaced Carpohos\u00ae, mentioned in the referenced article, with Titonic\u00ae Carpophos. This advanced product is part of our Functional Crop Nutrition\u00ae line and comes in the form of concentrated gel. Titonic\u00ae Carpophos is rich in Phosphorus and Calcium, and it is enhanced with [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":11574,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[199],"tags":[60,109,300],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Color and Firmness Improvement in Fuji Apples | Agrology<\/title>\n<meta name=\"description\" content=\"Agrology Success Stories: Color and Firmness Improvement in Fuji Apples with the application of Agrology&#039;s Plant Nutrition Programs!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agrology.eu\/en\/agrology-success-stories\/color-firmness-improvement-fuji-apples\/\" \/>\n<meta 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