Pub Date : 2022-10-04DOI: 10.1080/15538362.2022.2129551
K. Guo, Lei Peng, Yi Hong, G. Qiao
ABSTRACT Attempts had been made to optimize nitrogen (N), phosphorus (P) and potassium (K) fertilization rates for increased fruit performance of Chinese cherry (Prunus pseudocerasus Lindl.). This study was conducted using a randomized block design (RBD) consisting of three factors and four levels, totaling to 14 treatments with each treatment repeated in triplicate. The results illustrated that the fertilization application increased the trunk, leaf, crown and new shoot growth, however, the optimal combination of N, P, and K (NPK) fertilization for growth varied among different parts of the young tree. Moreover, the fruit weight and size, internal quality, and fruit set rate (FSR) were positively affected by fertilization. Specifically, the no. 12 treatment (0.3 kg N + 0.4 kg P + 0.2 kg K) contained the optimal NPK combination for enhanced fruit size and cherry fruit set. Similarly, although the treatment is not the maximum of NPK concentration, the no. 12 treatment for mean daily values of Pn (MDVP) and the NPK concentration in leaf was significantly higher compared to other treatments. Additionally, Pearson’s correlation analysis suggests that the FSR was positively and significantly correlated with fruit weight (FW), fruit vertical diameter (FVD) and the soluble sugars (SS) in fruit. In general, the no. 12 treatment was the optimal NPK fertilization rates for young tree growth, fruit quality of Chinese cherry (Prunus pseudocerasus Lindl.) in the Karst region of southwest China.
摘要为提高中国樱桃果实性能，尝试优化氮磷钾施肥量。本研究采用三因素四水平随机区组设计(RBD)，共14个治疗，每个治疗重复3次。结果表明，施氮促进了幼树干、叶、冠和新枝的生长，但氮磷钾(NPK)对幼树生长的最佳施肥组合因幼树不同部位而异。此外，施肥对果实重、大小、内在品质和坐果率均有显著的正向影响。具体来说，是no。12个处理(0.3 kg N + 0.4 kg P + 0.2 kg K)具有提高果实大小和坐果的最佳氮磷钾组合。同样，虽然处理不是氮磷钾浓度的最大值，但处理的氮磷钾含量也不高。12处理叶片日均Pn (MDVP)值和NPK浓度显著高于其他处理。此外，Pearson相关分析还表明，FSR与果实重(FW)、果实纵径(FVD)和果实可溶性糖(SS)呈显著正相关。一般来说，没有。12处理是西南喀斯特地区中国樱桃幼树生长和果实品质的最佳氮磷钾施肥量。
{"title":"Optimizing Nitrogen, Phosphorus, and Potassium Fertilization Rates for Fruit Performance of Chinese Cherry (Prunus pseudocerasus Lindl.)","authors":"K. Guo, Lei Peng, Yi Hong, G. Qiao","doi":"10.1080/15538362.2022.2129551","DOIUrl":"https://doi.org/10.1080/15538362.2022.2129551","url":null,"abstract":"ABSTRACT Attempts had been made to optimize nitrogen (N), phosphorus (P) and potassium (K) fertilization rates for increased fruit performance of Chinese cherry (Prunus pseudocerasus Lindl.). This study was conducted using a randomized block design (RBD) consisting of three factors and four levels, totaling to 14 treatments with each treatment repeated in triplicate. The results illustrated that the fertilization application increased the trunk, leaf, crown and new shoot growth, however, the optimal combination of N, P, and K (NPK) fertilization for growth varied among different parts of the young tree. Moreover, the fruit weight and size, internal quality, and fruit set rate (FSR) were positively affected by fertilization. Specifically, the no. 12 treatment (0.3 kg N + 0.4 kg P + 0.2 kg K) contained the optimal NPK combination for enhanced fruit size and cherry fruit set. Similarly, although the treatment is not the maximum of NPK concentration, the no. 12 treatment for mean daily values of Pn (MDVP) and the NPK concentration in leaf was significantly higher compared to other treatments. Additionally, Pearson’s correlation analysis suggests that the FSR was positively and significantly correlated with fruit weight (FW), fruit vertical diameter (FVD) and the soluble sugars (SS) in fruit. In general, the no. 12 treatment was the optimal NPK fertilization rates for young tree growth, fruit quality of Chinese cherry (Prunus pseudocerasus Lindl.) in the Karst region of southwest China.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"10 1","pages":"769 - 778"},"PeriodicalIF":2.4,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81330817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-04DOI: 10.1080/15538362.2022.2129548
Yuewen Chen, Feifei Li, Yuechang Wu, Tie Zhou, Yuan-yuan Chang, Xuefei Lian, Tao Yin, Li Ye, Yunsong Li, Xiaopeng Lu
ABSTRACT Understanding of orchard nutrition status can facilitate the proper management of orchards for higher fruit yield and quality. From 2011 to 2019, the nutrition status of orchards in Hunan Province, a major citrus-producing area in china, were assessed. A total of 361 soil samples, 378 leaf samples and 285 fruit samples of sweet oranges including navel orange (citrus sinensis l. Osbeck ‘newhall’) and common sweet orange (citrus sinensis l. Osbeck ‘bingtangcheng’), and mandarins including satsuma mandarin (citrus unshiu marc. ‘miyagawa’) and ponkan (citrus reticulata blanco ‘xinnu’) were collected. These samples were from112 sweet orange orchards and 140 mandarin orchards. Parameters of soil, leaf and fruit nutrition and fruit quality were analyzed based on these samples. The results revealed that soil acidification occurred in 79.0% of sweet orange orchards (ph 3.56 to 8.12) and 74.7% of mandarin orchards (ph 2.75 to 8.15). Soil organic matter (om) was abundant in both sweet orange orchards (21.3 g/kg on average) and mandarin orchards (19.77 g/kg on average). Nutrient analysis demonstrated deficiencies of nitrogen (n), potassium (k) and boron (b) in soils and leaves of sweet orange and mandarin orchards. Zinc (zn) was abundant in soils but deficient in leaves, suggesting a low zn utilization efficiency in these orchards. Besides, excessive iron (fe), magnesium (mn) and copper (cu) were found in sweet orange and mandarin leaves, which may be associated with low soil ph and fungicides application in this area. The average contents of n, phosphorus (p) and k in the fruit were about 0.80%, 0.11% and 0.51%, respectively, with a ratio close to 1:0.14:0.6. Multiple linear regression (mlr) analysis revealed that leaf npk and molybdenum (mo) significantly affect fruit fresh fruit weight (ffw) and total soluble solids (tss), and leaf p is closely correlated with fruit titratable acid (ta).
{"title":"Profiles of citrus orchard nutrition and fruit quality in Hunan Province, China","authors":"Yuewen Chen, Feifei Li, Yuechang Wu, Tie Zhou, Yuan-yuan Chang, Xuefei Lian, Tao Yin, Li Ye, Yunsong Li, Xiaopeng Lu","doi":"10.1080/15538362.2022.2129548","DOIUrl":"https://doi.org/10.1080/15538362.2022.2129548","url":null,"abstract":"ABSTRACT Understanding of orchard nutrition status can facilitate the proper management of orchards for higher fruit yield and quality. From 2011 to 2019, the nutrition status of orchards in Hunan Province, a major citrus-producing area in china, were assessed. A total of 361 soil samples, 378 leaf samples and 285 fruit samples of sweet oranges including navel orange (citrus sinensis l. Osbeck ‘newhall’) and common sweet orange (citrus sinensis l. Osbeck ‘bingtangcheng’), and mandarins including satsuma mandarin (citrus unshiu marc. ‘miyagawa’) and ponkan (citrus reticulata blanco ‘xinnu’) were collected. These samples were from112 sweet orange orchards and 140 mandarin orchards. Parameters of soil, leaf and fruit nutrition and fruit quality were analyzed based on these samples. The results revealed that soil acidification occurred in 79.0% of sweet orange orchards (ph 3.56 to 8.12) and 74.7% of mandarin orchards (ph 2.75 to 8.15). Soil organic matter (om) was abundant in both sweet orange orchards (21.3 g/kg on average) and mandarin orchards (19.77 g/kg on average). Nutrient analysis demonstrated deficiencies of nitrogen (n), potassium (k) and boron (b) in soils and leaves of sweet orange and mandarin orchards. Zinc (zn) was abundant in soils but deficient in leaves, suggesting a low zn utilization efficiency in these orchards. Besides, excessive iron (fe), magnesium (mn) and copper (cu) were found in sweet orange and mandarin leaves, which may be associated with low soil ph and fungicides application in this area. The average contents of n, phosphorus (p) and k in the fruit were about 0.80%, 0.11% and 0.51%, respectively, with a ratio close to 1:0.14:0.6. Multiple linear regression (mlr) analysis revealed that leaf npk and molybdenum (mo) significantly affect fruit fresh fruit weight (ffw) and total soluble solids (tss), and leaf p is closely correlated with fruit titratable acid (ta).","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"1946 1","pages":"779 - 793"},"PeriodicalIF":2.4,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91182427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-13DOI: 10.1080/15538362.2022.2117263
M. Sajid, S. Haq, A. Jan, Fahad Noor, Qazi Shoaib Ali, Mehboob Alam, A. Zaman, Fawad Ali Shah, Walid F. A. Mosa, Hesham S. Abada
ABSTRACT Influence of foliar application of potassium nitrate and copper sulfate on the production and quality of Pear cv. Le Conte was carried out at Horticulture Research Farm and Postharvest Laboratory, The University of Agriculture Peshawar-Pakistan, during the year 2018–19. The aim of the study was to get quality pear production with minimal disease incidence. The research was carried out in a randomized complete block design with three replications. The study contained two factors, i.e., different concentrations of potassium nitrate (0%, 1%, 2%, and 3%) as Factor A, while different levels of copper sulfate (0%, 0.2%, 0.4%, 0.6%, and 0.8%) as factor B and the treatments were applied in spring season at the fruit set stage. The application of 2% potassium nitrate to the pear plants resulted in heaviest fruit (188.30 g), maximum fruit volume (203.80 cm3), fruit yield tree−1 (60.13 kg) with minimum fruit drop (8.52%) and disease incidence (5.28%), while maximum fruit firmness (7.66 kg.cm−2), total soluble solids (12.40 ○Brix), fruit juice pH (5.38), ascorbic acid content (5.56 mg.100 g−1) while minimum Titratable acidity (0.41%) were noted in fruits of plants sprayed with 3% potassium nitrate solution. However, the maximum fruit weight (192.04 g), fruit yield tree−1 (59.06 kg), minimum fruit drop (6.75%), and disease incidences (3.54%) were recorded in pear plants applied with 0.6% foliar copper sulfate solution. However, maximum fruit firmness (7.53 kg.cm−2), total soluble solids (12.38 ○Brix), fruit juice pH (5.31), ascorbic acid content (5.22 mg.100 g−1) with minimum Titratable acidity (0.42%) were noted in the plants sprayed with 0.8% copper sulfate solution. This study will provide a basis for high yield and quality fruit production, which will affect the storability of pear and other important fruit crops. Further studies should be conducted to optimize the dose, timing, and method of application of these fungicides for other pome fruits.
{"title":"Effect of Foliar Application with Potassium Nitrate and Copper Sulfate on Fruit Yield and Quality of Pear (Pyrus communis L.) Trees","authors":"M. Sajid, S. Haq, A. Jan, Fahad Noor, Qazi Shoaib Ali, Mehboob Alam, A. Zaman, Fawad Ali Shah, Walid F. A. Mosa, Hesham S. Abada","doi":"10.1080/15538362.2022.2117263","DOIUrl":"https://doi.org/10.1080/15538362.2022.2117263","url":null,"abstract":"ABSTRACT Influence of foliar application of potassium nitrate and copper sulfate on the production and quality of Pear cv. Le Conte was carried out at Horticulture Research Farm and Postharvest Laboratory, The University of Agriculture Peshawar-Pakistan, during the year 2018–19. The aim of the study was to get quality pear production with minimal disease incidence. The research was carried out in a randomized complete block design with three replications. The study contained two factors, i.e., different concentrations of potassium nitrate (0%, 1%, 2%, and 3%) as Factor A, while different levels of copper sulfate (0%, 0.2%, 0.4%, 0.6%, and 0.8%) as factor B and the treatments were applied in spring season at the fruit set stage. The application of 2% potassium nitrate to the pear plants resulted in heaviest fruit (188.30 g), maximum fruit volume (203.80 cm3), fruit yield tree−1 (60.13 kg) with minimum fruit drop (8.52%) and disease incidence (5.28%), while maximum fruit firmness (7.66 kg.cm−2), total soluble solids (12.40 ○Brix), fruit juice pH (5.38), ascorbic acid content (5.56 mg.100 g−1) while minimum Titratable acidity (0.41%) were noted in fruits of plants sprayed with 3% potassium nitrate solution. However, the maximum fruit weight (192.04 g), fruit yield tree−1 (59.06 kg), minimum fruit drop (6.75%), and disease incidences (3.54%) were recorded in pear plants applied with 0.6% foliar copper sulfate solution. However, maximum fruit firmness (7.53 kg.cm−2), total soluble solids (12.38 ○Brix), fruit juice pH (5.31), ascorbic acid content (5.22 mg.100 g−1) with minimum Titratable acidity (0.42%) were noted in the plants sprayed with 0.8% copper sulfate solution. This study will provide a basis for high yield and quality fruit production, which will affect the storability of pear and other important fruit crops. Further studies should be conducted to optimize the dose, timing, and method of application of these fungicides for other pome fruits.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"38 1","pages":"759 - 768"},"PeriodicalIF":2.4,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90171036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-09DOI: 10.1080/15538362.2022.2114056
H. Cordoba-Novoa, María Mercedes Pérez-Trujillo, Brahyam Emmanuel Cruz Rincón, Nixon Flórez-Velasco, Stanislav Magnitskiy, Liz Patricia Moreno Fonseca
ABSTRACT The strawberry (Fragaria × ananassa Duch.) is a commercially important crop with high water requirements, making strategies that mitigate the influence of water deficits on plant growth necessary. This study aimed to evaluate the effects of shading on the vegetative growth of strawberry cv. Sweet Ann under a water deficit. The treatments consisted of the combination of two levels of shading (light intensity reduced by 47% vs. non-shaded plants) and two levels of water availability (water deficit vs. well-watered plants). The water deficit reduced the leaf water potential from −1.52 to −2.21 MPa, and diminished stomatal conductance, net photosynthetic rate (from 9.13 to 2.5 µmol m−2 s−1), maximum quantum efficiency of PSII photochemistry (from 0.79 to 0.67), and biomass accumulation, but increased the electrolyte leakage. The shading allowed the water-deficient plants to maintain water potential (−1.58 MPa) and photosystem II efficiency (0.79) and to increase water use efficiency (from 14.80 to 86.90 µmol CO2/mmol H2O), net photosynthetic rate (from 2.40 to 9.40 µmol m−2 s−1) and biomass of leaves, crowns, and roots, as compared to the non-shaded plants without a water limitation. These results suggest, for the first time in strawberry, that a reduction in incident light intensity attenuates the effects of stomatic and non-stomatic limitations caused by a water deficit during vegetative growth in strawberry.
{"title":"Shading Reduces Water Deficits in Strawberry (Fragaria X Ananassa) Plants during Vegetative Growth","authors":"H. Cordoba-Novoa, María Mercedes Pérez-Trujillo, Brahyam Emmanuel Cruz Rincón, Nixon Flórez-Velasco, Stanislav Magnitskiy, Liz Patricia Moreno Fonseca","doi":"10.1080/15538362.2022.2114056","DOIUrl":"https://doi.org/10.1080/15538362.2022.2114056","url":null,"abstract":"ABSTRACT The strawberry (Fragaria × ananassa Duch.) is a commercially important crop with high water requirements, making strategies that mitigate the influence of water deficits on plant growth necessary. This study aimed to evaluate the effects of shading on the vegetative growth of strawberry cv. Sweet Ann under a water deficit. The treatments consisted of the combination of two levels of shading (light intensity reduced by 47% vs. non-shaded plants) and two levels of water availability (water deficit vs. well-watered plants). The water deficit reduced the leaf water potential from −1.52 to −2.21 MPa, and diminished stomatal conductance, net photosynthetic rate (from 9.13 to 2.5 µmol m−2 s−1), maximum quantum efficiency of PSII photochemistry (from 0.79 to 0.67), and biomass accumulation, but increased the electrolyte leakage. The shading allowed the water-deficient plants to maintain water potential (−1.58 MPa) and photosystem II efficiency (0.79) and to increase water use efficiency (from 14.80 to 86.90 µmol CO2/mmol H2O), net photosynthetic rate (from 2.40 to 9.40 µmol m−2 s−1) and biomass of leaves, crowns, and roots, as compared to the non-shaded plants without a water limitation. These results suggest, for the first time in strawberry, that a reduction in incident light intensity attenuates the effects of stomatic and non-stomatic limitations caused by a water deficit during vegetative growth in strawberry.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"100 1","pages":"725 - 740"},"PeriodicalIF":2.4,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90166314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-09DOI: 10.1080/15538362.2022.2119189
Dagmawe Menelek Asfaw, Sirage Mohammed Shifaw, Atinkugn Assefa Belete
ABSTRACT Date palm production and marketing contribute substantially to food security, reduction of malnutrition, mitigation of poverty, and income diversification for poor agro-pastoralists in Ethiopia. However, marketing systems are not sophisticated and well functioning, and producers do not as such benefit from date market participation due to different factors. This study examined factors that determine date market participation decisions and intensity. A total of 384 date producers were selected through a multi-stage sampling technique. A Descriptive and Double hurdle model was employed to analyze the data. The Double hurdle econometric model revealed that producers with access to extension services, improved date palm varieties, credit, road infrastructure, market information, land access, better market prices, better educational status, and direct to consumer marketing channels were more likely to participate in and supply the date market. Whereas producers who had livestock, dwellings distant from the nearest market, or a greater number of date palm trees, were adversely affected in date market participation intensity. The results of this study support the recommendations for establishing extension services, rural education, rural road infrastructure, marketplaces, and institutional support; and providing credit access, improved date palm varieties, additional hectares of land for date production, and updated market information to date palm producers.
{"title":"Determinants of Market Participation Decision and Intensity among Date Producers in Afar Region, Ethiopia: A Double Hurdle Approach","authors":"Dagmawe Menelek Asfaw, Sirage Mohammed Shifaw, Atinkugn Assefa Belete","doi":"10.1080/15538362.2022.2119189","DOIUrl":"https://doi.org/10.1080/15538362.2022.2119189","url":null,"abstract":"ABSTRACT Date palm production and marketing contribute substantially to food security, reduction of malnutrition, mitigation of poverty, and income diversification for poor agro-pastoralists in Ethiopia. However, marketing systems are not sophisticated and well functioning, and producers do not as such benefit from date market participation due to different factors. This study examined factors that determine date market participation decisions and intensity. A total of 384 date producers were selected through a multi-stage sampling technique. A Descriptive and Double hurdle model was employed to analyze the data. The Double hurdle econometric model revealed that producers with access to extension services, improved date palm varieties, credit, road infrastructure, market information, land access, better market prices, better educational status, and direct to consumer marketing channels were more likely to participate in and supply the date market. Whereas producers who had livestock, dwellings distant from the nearest market, or a greater number of date palm trees, were adversely affected in date market participation intensity. The results of this study support the recommendations for establishing extension services, rural education, rural road infrastructure, marketplaces, and institutional support; and providing credit access, improved date palm varieties, additional hectares of land for date production, and updated market information to date palm producers.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"24 1","pages":"741 - 758"},"PeriodicalIF":2.4,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82832849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-30DOI: 10.1080/15538362.2022.2113598
Teklu Chalchisa, A. Zegeye, Belay Dereje, Yohannes Tolesa
ABSTRACT The present study aimed to investigate the effects of sugar, pectin, and processing temperature on the qualities of jam developed from pineapple (smooth cayenne). The physico-chemical, and proximate composition of pineapple fruit pulp and jam were studied and the results were reported. The jam quality depended highly on the concentration of sugars, pectin, and the processing temperature. Processing of pineapple fruit pulp into jam resulted in a substantial increase in physicochemical properties such as TSS and TA and showed some loss in the nutritional, vitamin C, and mineral composition of the products compared to fresh fruits. The processing methods showed significant effects on the phytochemical contents of the produced jam. Jam formulated with (45%) sugar, and (5%) pectin and processed at (90°C) temperature are proven as best products in terms of their nutritional composition, color, phytochemicals, and vitamin C. In conclusion, these results indicate that converting fresh pineapple into jam has an enormous potential to reduce the post-harvest loss of fresh pineapple fruits, and value-added product jam provides health-promoting compounds to human health.
{"title":"Effect of Sugar, Pectin, and Processing Temperature on the Qualities of Pineapple Jam","authors":"Teklu Chalchisa, A. Zegeye, Belay Dereje, Yohannes Tolesa","doi":"10.1080/15538362.2022.2113598","DOIUrl":"https://doi.org/10.1080/15538362.2022.2113598","url":null,"abstract":"ABSTRACT The present study aimed to investigate the effects of sugar, pectin, and processing temperature on the qualities of jam developed from pineapple (smooth cayenne). The physico-chemical, and proximate composition of pineapple fruit pulp and jam were studied and the results were reported. The jam quality depended highly on the concentration of sugars, pectin, and the processing temperature. Processing of pineapple fruit pulp into jam resulted in a substantial increase in physicochemical properties such as TSS and TA and showed some loss in the nutritional, vitamin C, and mineral composition of the products compared to fresh fruits. The processing methods showed significant effects on the phytochemical contents of the produced jam. Jam formulated with (45%) sugar, and (5%) pectin and processed at (90°C) temperature are proven as best products in terms of their nutritional composition, color, phytochemicals, and vitamin C. In conclusion, these results indicate that converting fresh pineapple into jam has an enormous potential to reduce the post-harvest loss of fresh pineapple fruits, and value-added product jam provides health-promoting compounds to human health.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"85 1","pages":"711 - 724"},"PeriodicalIF":2.4,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82875921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-24DOI: 10.1080/15538362.2022.2109094
Santhoshkumar G M, N. Bhowmick, Aditi Chakraborty, A. Dey, Arunava Ghosh, P. Dutta, P. Deb, Novin Chamling, N. Sherpa, Bidyarani Devi Senjam
ABSTRACT A field trial was conducted to study the effect of shoot pruning on growth, flowering and fruiting characteristics of different guava cultivars. The experiment was carried out during Jan. 2018 to June 2019. The experiment was laid out in Randomized Block Design (RBD) with seven cultivars as treatments including L-49 (T1), Allahabad Safeda (T2), Baruipur (T3), Doodh Khaja (T4), Kafri (T5), Bhagalpur (T6) and Harichal (T7). Shoot pruning in guava is an alternative practice used to control the excessive growth and vigor of the plant. The plants were pruned from 120 cm above the ground level as heading back to facilitate the production of new shoots from below the cut point and allow the primary shoots. These results revealed that, guava cultivar baruipur was best in terms of number of primary shoots (58.17), length of primary shoots (135.82 cm) at 12 months after pruning, flowering percentage (66.11%) and better fruit characteristics.
{"title":"Effect of Shoot Pruning on Growth, Flowering and Fruiting Characteristics of Different Guava (Psidium Guajava L.) Cultivars","authors":"Santhoshkumar G M, N. Bhowmick, Aditi Chakraborty, A. Dey, Arunava Ghosh, P. Dutta, P. Deb, Novin Chamling, N. Sherpa, Bidyarani Devi Senjam","doi":"10.1080/15538362.2022.2109094","DOIUrl":"https://doi.org/10.1080/15538362.2022.2109094","url":null,"abstract":"ABSTRACT A field trial was conducted to study the effect of shoot pruning on growth, flowering and fruiting characteristics of different guava cultivars. The experiment was carried out during Jan. 2018 to June 2019. The experiment was laid out in Randomized Block Design (RBD) with seven cultivars as treatments including L-49 (T1), Allahabad Safeda (T2), Baruipur (T3), Doodh Khaja (T4), Kafri (T5), Bhagalpur (T6) and Harichal (T7). Shoot pruning in guava is an alternative practice used to control the excessive growth and vigor of the plant. The plants were pruned from 120 cm above the ground level as heading back to facilitate the production of new shoots from below the cut point and allow the primary shoots. These results revealed that, guava cultivar baruipur was best in terms of number of primary shoots (58.17), length of primary shoots (135.82 cm) at 12 months after pruning, flowering percentage (66.11%) and better fruit characteristics.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"212 1","pages":"686 - 695"},"PeriodicalIF":2.4,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73087413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-24DOI: 10.1080/15538362.2022.2113597
B. Ozturk, Erdal Aglar, O. Saraçoğlu, O. Karakaya, Sefa Gun
ABSTRACT The aim of this study was to investigate the effects of pre-harvest gibberellic acid (GA3) and calcium chloride (CaCl2) and post-harvest modified atmosphere packaging (MAP) applications on fruit quality of sweet cherry during the cold storage. At the end of the cold storage, GA3+CaCl2 applications in MAP-applied fruit and CaCl2 in non-MAP-applied fruit significantly delayed weight loss compared to the control. During the cold storage, the decay of CaCl2-applied fruit has not been observed. At the end of cold storage, the a* and firmness values of the fruit treated with GA3 and CaCl2 were significantly higher than the control. The CaCl2-applied fruit had less soluble solids than the control, but they had significantly higher acidity compared to other applications. In MAP, GA3- and CaCl2-applied fruit had higher vitamin C and antioxidant activity values than the control fruit, but their total phenolics were higher. However, the total flavonoids of CaCl2-applied fruit were higher than the control. On fruit in non-MAP, with GA3 application, less anthocyanin was obtained compared to the control. As a result, GA3-treated fruit had a relatively lower bioactive compound content compared to the fruit of the CaCl2 and control applications both during the harvest and the cold storage. However, it has been revealed that GA3 and CaCl2 applications can be used as significant pre-harvest tools to delay the loss of the fruit firmness.
{"title":"Effects of GA3, CACl2 and Modified Atmosphere Packaging (MAP) Applications on Fruit Quality of Sweet Cherry at Cold Storage","authors":"B. Ozturk, Erdal Aglar, O. Saraçoğlu, O. Karakaya, Sefa Gun","doi":"10.1080/15538362.2022.2113597","DOIUrl":"https://doi.org/10.1080/15538362.2022.2113597","url":null,"abstract":"ABSTRACT The aim of this study was to investigate the effects of pre-harvest gibberellic acid (GA3) and calcium chloride (CaCl2) and post-harvest modified atmosphere packaging (MAP) applications on fruit quality of sweet cherry during the cold storage. At the end of the cold storage, GA3+CaCl2 applications in MAP-applied fruit and CaCl2 in non-MAP-applied fruit significantly delayed weight loss compared to the control. During the cold storage, the decay of CaCl2-applied fruit has not been observed. At the end of cold storage, the a* and firmness values of the fruit treated with GA3 and CaCl2 were significantly higher than the control. The CaCl2-applied fruit had less soluble solids than the control, but they had significantly higher acidity compared to other applications. In MAP, GA3- and CaCl2-applied fruit had higher vitamin C and antioxidant activity values than the control fruit, but their total phenolics were higher. However, the total flavonoids of CaCl2-applied fruit were higher than the control. On fruit in non-MAP, with GA3 application, less anthocyanin was obtained compared to the control. As a result, GA3-treated fruit had a relatively lower bioactive compound content compared to the fruit of the CaCl2 and control applications both during the harvest and the cold storage. However, it has been revealed that GA3 and CaCl2 applications can be used as significant pre-harvest tools to delay the loss of the fruit firmness.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"5 1","pages":"696 - 710"},"PeriodicalIF":2.4,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79194610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-10DOI: 10.1080/15538362.2022.2103063
Y. Mochizuki, Sou Murakami, Takurou Kobayashi, K. Worarad, Yukio Yonezu, H. Umeda, T. Okayama, E. Inoue
ABSTRACT June-bearing strawberry cultivars have been widely grown in Japan. Since they are harvested in winter and spring, little produce is available in summer and autumn. To achieve stable year-round supply, we need to expand the production area of ever-bearing cultivars. Here, we examined whether it is possible to increase dry matter (DM) production and fruit yield by increasing the CO2 concentration within the plant canopy through local application to promote photosynthesis in summer and autumn protected culture. We investigated the CO2 concentration in the plant canopy, DM production characteristics, yield characteristics, fruit quality, projected leaf area, cumulative light interception, and light use efficiency. We confirmed that the CO2 concentration within the plant canopy could be increased in summer and autumn (Control; 398 ppm, CO2; 1280 ppm), significantly increasing DM production and total yield (Control; 349 g, CO2; 447.5 g). We consider that local application of CO2 increased the projected leaf area and thus cumulative light interception. This method may help to increase fruit yield in summer and autumn protected culture.
{"title":"Local CO2 Application within Strawberry Plant Canopy Increased Dry Matter Production and Fruit Yield in Summer and Autumn Culture","authors":"Y. Mochizuki, Sou Murakami, Takurou Kobayashi, K. Worarad, Yukio Yonezu, H. Umeda, T. Okayama, E. Inoue","doi":"10.1080/15538362.2022.2103063","DOIUrl":"https://doi.org/10.1080/15538362.2022.2103063","url":null,"abstract":"ABSTRACT June-bearing strawberry cultivars have been widely grown in Japan. Since they are harvested in winter and spring, little produce is available in summer and autumn. To achieve stable year-round supply, we need to expand the production area of ever-bearing cultivars. Here, we examined whether it is possible to increase dry matter (DM) production and fruit yield by increasing the CO2 concentration within the plant canopy through local application to promote photosynthesis in summer and autumn protected culture. We investigated the CO2 concentration in the plant canopy, DM production characteristics, yield characteristics, fruit quality, projected leaf area, cumulative light interception, and light use efficiency. We confirmed that the CO2 concentration within the plant canopy could be increased in summer and autumn (Control; 398 ppm, CO2; 1280 ppm), significantly increasing DM production and total yield (Control; 349 g, CO2; 447.5 g). We consider that local application of CO2 increased the projected leaf area and thus cumulative light interception. This method may help to increase fruit yield in summer and autumn protected culture.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"39 1","pages":"675 - 685"},"PeriodicalIF":2.4,"publicationDate":"2022-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87277570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-17DOI: 10.1080/15538362.2022.2095552
V. b, R. Ramachandran, A. Gangaprasad, E. Siril
ABSTRACT Garcinia gummi-gutta is valued for its dried fruit rind used as a souring agent in traditional cuisine and for the extraction of natural hydroxy citric acid (HCA) in the formulation of anti-obesity nutraceuticals. The species is widely distributed in Kerala State but is not yet an economically profitable crop in the region. Promising germplasm screening based on the fruit mass traits of 180 trees was performed leading to the selection of 35 candidates plus trees (CPTs) characterized by the fewest fruits to weigh 1 kg (i.e., the largest fruits) with two fruit bearing seasons. Fruit mass data of 35 CPTs showed significant (P < .001) variations and highest fresh fruit mass (1091.27 kg), and dry rind mass (48.18 kg) recorded in CPT 6 and is 40-fold higher mass than mean fruit mass (25.4 kg) of 180 trees. Multivariate analysis and web diagram-based ranking supported selection of CPT 6 as a promising candidate tree. In the tree improvement programs through nutraceutical enrichment, the superior germplasm selected (CPT 6) in the present study can use effectively.
{"title":"Selection of Promising Candidate of Malabar Tamarind [Garcinia gummi-gutta (L.) Roxb.]- a Multipurpose Fruit Tree","authors":"V. b, R. Ramachandran, A. Gangaprasad, E. Siril","doi":"10.1080/15538362.2022.2095552","DOIUrl":"https://doi.org/10.1080/15538362.2022.2095552","url":null,"abstract":"ABSTRACT Garcinia gummi-gutta is valued for its dried fruit rind used as a souring agent in traditional cuisine and for the extraction of natural hydroxy citric acid (HCA) in the formulation of anti-obesity nutraceuticals. The species is widely distributed in Kerala State but is not yet an economically profitable crop in the region. Promising germplasm screening based on the fruit mass traits of 180 trees was performed leading to the selection of 35 candidates plus trees (CPTs) characterized by the fewest fruits to weigh 1 kg (i.e., the largest fruits) with two fruit bearing seasons. Fruit mass data of 35 CPTs showed significant (P < .001) variations and highest fresh fruit mass (1091.27 kg), and dry rind mass (48.18 kg) recorded in CPT 6 and is 40-fold higher mass than mean fruit mass (25.4 kg) of 180 trees. Multivariate analysis and web diagram-based ranking supported selection of CPT 6 as a promising candidate tree. In the tree improvement programs through nutraceutical enrichment, the superior germplasm selected (CPT 6) in the present study can use effectively.","PeriodicalId":14014,"journal":{"name":"International Journal of Fruit Science","volume":"29 1","pages":"664 - 674"},"PeriodicalIF":2.4,"publicationDate":"2022-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77364708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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