Advances in Horticultural Science <p><strong><em>Advances in Horticultural Science&nbsp;</em></strong>aims to provide a forum for original investigations in horticulture, viticulture and oliviculture. The journal publishes fully refereed papers which cover applied and theoretical approaches to the most recent studies of all areas of horticulture - fruit growing, vegetable growing, viticulture, floriculture, medicinal plants, ornamental gardening, garden and landscape architecture, in temperate, subtropical and tropical regions. Papers on horticultural aspects of agronomic, breeding, biotechnology, entomology, irrigation and plant stress physiology, plant nutrition, plant protection, plant pathology, and pre and post harvest physiology, are also welcomed.</p> <p>The journal scope is the promotion of a sustainable increase of the quantity and quality of horticultural products and the transfer of the new knowledge in the field.</p> <p>Papers should report original research, should be methodologically sound and of relevance to the international scientific community.</p> <p>AHS publishes three types of manuscripts: Full-length - short note - review papers. Papers are published in English.</p> Firenze University Press en-US Advances in Horticultural Science 0394-6169 <p>Authors retain the copyright and grant the journal right of first publication with the work simultaneously licensed under a <strong>Creative Commons Attribution 4.0 International Public License (<a href="">CC-BY-4.0</a>)</strong>&nbsp;that allows others to share the work with an acknowledgment of the work's authorship and initial publication.</p> <p><a href="" rel="license"><img src="" alt="Creative Commons License"></a><br>This work is licensed under a <a href="" rel="license">Creative Commons Attribution 4.0 International License</a></p> Reduction of leaf tip burns of Ornithogalum dubium by controlling the temperature during bulb storage and greenhouse forcing to produce quality plants <p><strong>Production of quality potted <em>Ornithogalum dubium</em> Houtt. plants were investigated under multiple conditions: pre-planting treatment at 10, 16, and 22°C for 40 days from Sept. 21 (stage A; ST-A) during bulb storage and then bulbs were potted. After potting, post-planting treatment at 15/12, 18/15, and 21/18°C (day/night) during stage B for 35 days from Nov. 2 (stage B; ST-B), and at 15/12 and 21/18°C during stage C for 30 days from Dec. 7 (stage C; ST-C) during greenhouse forcing was applied. Leaf tissue analyses for macro- and micro-nutrients were performed to investigate the cause of leaf tip burn symptom (LTB). Three criteria for quality of the plants at flowering were established: (1) LTB occurs on less than 1.5 leaves per plant. (2) the number of days to flower is less than 115 days, the length of the third leaf counted from the crown (the junction of the shoot and roots) is shorter than 11.5 cm, and the width is narrower than 2.5 cm; the scape length is shorter than 15 cm, and there are more than 45 flowers. (3) the leaf spread and morphology (leaf spread) and the pattern of the scape curvature (scape growth) have a score of less than 1.5. The following conditions are optimal to produce quality plants based on these three criteria: (1) Pre-planting bulbs treatment was applied at 10 or 16°C during ST-A, and forcing was performed at 15/12°C during ST-B and 21/18°C during ST-C. These conditions accelerated flowering, produced straight scape growth and upward (erect) growing leaves, and yielded acceptable leaf length and width. (2) The incidence of LTB was minimal at 10°C or possibly 16°C during ST-A, and at 15/12°C in ST-B and at 21/18°C in ST-C during greenhouse forcing. Leaf tip burn symptom was observed in both young and old leaves and was caused by a high boron (B) concentration (218-230 ppm) and possibly a high zinc (Zn) concentration (155-159 ppm) in <em>O. dubium</em>. A low calcium (Ca) concentration was not the cause of LTB. Although LTB cannot be avoided, it can be minimized by temperature manipulation during pre- and post-planting phase to produce high quality potted plants.</strong></p> X. Wu L. Wang Mark Roh Copyright (c) 2022 Mark Roh 2022-01-14 2022-01-14 36 1 3 11 10.36253/ahsc-11568 Profiling of primary metabolites of Averrhoa carambola, Spondias dulcis and Syzygium malaccense fruits revealed underpinning markers during “on-tree” maturation and ripening stages <p><strong>The study aimed to profile and quantify sugars and organic acids metabolites in carambola, June plum and otaheite fruits during three different “on tree” stages: immature, green-mature and ripe stages. Metabolites were profiled and quantified by gas chromatography-mass spectrometry (GC-MS). Results showed that glucose, fructose, galactose, arabinose, and the sugar alcohol myo-inositol were detected in all fruits, while sucrose was detected in carambola and June plum only. Organic acids identified in all fruits were malic acid, citric acid, propanoic acid, and acetic acid. Comparatively, June plum showed the highest content of total sugars and carambola the lowest, while the highest total in organic acids content was found in otaheite and the lowest in carambola. On the other hand, most sugars increased during ripening of the three fruits, while organic acids decreased. Total sugars increased by 37%, 8% and 46% in ripe carambola, June plum and otaheite, respectively. Total organic acids decreased by 20% and 49% in ripe carambola and otaheite, while they slightly increased by 3% in ripe June plum. Furthermore, sugars/organic acids ratio in all fruits increased during maturation and ripening stages. Principal component analysis (PCA) showed two main groups of highly scoring metabolites, while the hierarchical cluster analysis (HCA) showed that the metabolites were grouped into three main clusters. Conclusively, results showed that glucose, fructose, malic acid and tartaric acids were the key marker metabolites of the maturation and ripening stages of the three fruits.</strong></p> Tracy-Ann Smith Juan Vásquez-Martínez Erika Mellado-Mojica Kisan Vaidya Mercedes Lopez Noureddine Benkeblia Copyright (c) 2022 Noureddine Benkeblia, Tracy-Ann Smith, Juan Vásquez-Martínez, Erika Mellado-Mojica, Kisan Vaidya, Mercedes Lopez 2022-01-14 2022-01-14 36 1 13 26 10.36253/ahsc-11437 Postharvest performance interpretation and storage temperature optimization in some newly introduced melon hybrids <p><strong>Temperature is a key factor in melon cold storage. Thus, optimizing storage temperature is an important goal in postharvest research. In this experiment, postharvest attributes of four inbred lines and five derivative hybrids were investigated under three storage temperatures (1, 4, and 12°C). Melon fruit were evaluated for their main characteristics directly after harvest and postharvest changes were monitored through cold storage period. Cluster analysis results showed that most of the hybrids clustered with their maternal parents illustrating the significant role of cytoplasmic inheritance for the studied traits. Similarly, principal component analysis clustered the studied types into three clusters according to their average postharvest behaviour. The best postharvest performance belonged to inodorus and cantalupensis netted melon with their intercrossing breeds. While the dudaim inbred line and its hybrid scored the highest postharvest changes. Response surface analysis showed that 1.8°C was the optimum storage temperature for inodorus and cantalupensis clusters, while 5.1°C was the best storage temperature of dudaim cluster. The results of the current study are similar to previous reports for optimum storage temperature in similar melon types.</strong></p> Michael Alabboud Siamak Kalantari Forouzandeh Soltani Copyright (c) 2022 Michael Alabboud, Siamak Kalantari , Forouzandeh Soltani 2022-01-14 2022-01-14 36 1 27 36 10.36253/ahsc-10914 Decreasing postharvest chilling injury of guava fruit by using melatonin treatment <p><strong>Guava fruit is a tropical fruit thus sensitive to the chilling injury. In this study the effects of melatonin (known to protect membrane integrity and to help to face abiotic and biotic stress) is evaluated for reduction of chilling injury during postharvest. Guava fruits were dipped into 10, 100 and 1000 μmol L<sup>-1</sup> melatonin solutions, then kept at cold storage (10±1°C and 90% relative humidity) for 21 days. Several parameters including chilling injury, malondialdehyde content, electrolyte leakage and increased total phenolic compounds and antioxidant activity, phospholipase D and lipoxygenase activity were measured after treatment. Measurements were made every 7 days during the storage. Results showed that melatonin decreased chilling injury, malondialdehyde content, electrolyte leakage and increased total phenolic compounds and antioxidant activity compared to the control. Also, results indicated that chilling injury of guava fruit by using melatonin decreased through increasing integrity of membrane and reducing phospholipase D and lipoxygenase activity. Thus, melatonin can be a useful treatment for decreasing postharvest chilling disorder of guava fruit.</strong></p> Amin Mirshekari Babak Madani Copyright (c) 2022 Amin Mirshekari , Babak Madani 2022-02-13 2022-02-13 36 1 37 42 10.36253/ahsc-12222 Phytoprotective film for resistance induction, growth, and yield of organic strawberries <p><strong>The objective of this work was to evaluate a phytoprotective film of chitosan-pyroligneous extract in promoting growth, productivity, induction of systemic resistance in strawberry cultivars managed in an organic production system. Treatments consisted of rates (0, 25, 50, and 100 mL L<sup>-1</sup>) of Chi-Pyro-Film and a reference resistance inducer (dipotassium hydrogen phosphate - K<sub>2</sub>HPO<sub>4</sub>), evaluated in three strawberry cultivars ('Albion', 'San Andreas' and 'Portola'). Growth, yield, anthracnose incidence, and enzymatic activity were evaluated. The experimental design was a randomized block design with four replications. Chi-Pyro-Film increases the growth, yield, and anthracnose resistance of strawberry plants. The best concentration of Chi-Pyro-Film varies between 50 and 60 mL L<sup>-1</sup>, according to strawberry cultivar.</strong></p> Ivan dos Santos Pereira Fabiane Grecco da Silva Porto Luis Eduardo Corrêa Antunes Ângela Diniz Campos Copyright (c) 2022 Ivan dos Santos Pereira, Fabiane Grecco da Silva Porto, Luis Eduardo Corrêa Antunes, Ângela Diniz Campos 2022-02-25 2022-02-25 36 1 43 52 10.36253/ahsc-10449 Flower differentiation and fruiting dynamics in olive trees (Olea europaea): Eco-physiological analysis in the Mediterranean basin <p><strong>The formation of flowers in sufficient number and quality is a prerequisite for a successful subsequent fruit set. Despite&nbsp; the abundant flowering, olive trees (<em>Olea europea)</em> are characterized by a very low fruit set, and a very severe yield alteration leading to market fluctuation over time. The goal of this paper is to explore and analyze eco-physiological driving factors behind the poor fruit set in Mediterranean olive groves. The key mechanisms causing floral differentiation and extreme yield alternate are functional of plant genetic variability, nutrient competition, and some ecological aspects as a response to climate change. Additionally, olive inflorescence architecture appears to be complex and can vary between cultivars; the olive flower differentiation results in a variable proportion of hermaphrodite, pistillate and staminate flowers among olive cultivars as well as across canopy positions and branches, enhancing nutrient competition between flowers. Self-pollination could be one of the limiting factors for increasing early fruit abscission and extreme alternate fruit-bearing. Hormonal treatments to reduce alternate production in olive trees should be explored. The current review analysis shall help to improve olive grove management, but also for breeding new cultivars more suitable for Mediteranean agro-ecological constraints. Ovule viability and fertilisation, and embryo sac development abnormalities should all be further investigated.</strong></p> Festus Maniriho Copyright (c) 2022 Festus Maniriho 2022-01-26 2022-01-26 36 1 53 62 10.36253/ahsc-12444 An overview of Betel vine (Piper Betle L.): Nutritional, pharmacological and economical promising natural reservoir <p><strong>With its magnificent green heart-shaped leaf, the betel vine (Piper betle L.) is also known as Paan in India. It is a member of the Piperaceae family. It is cultivated in the coastal regions of Odisha (Balasore, Jagatsinghpur, Puri, Khordha, and Ganjam). Paan is consumed by over 1 million people throughout the state, but they are unaware of its high nutritional quality. It is considered superior to pharmaceuticals and is one of the best remedies in nature. It has anti-microbial, anti-apoptotic, anti-cancer, antioxidant, and anti-inflammatory attributes. Furthermore, the leaves retain eugenol-rich essential oil (EO) (1-3%), which is the hotspot for medication, stimulants, antiseptics, tonics, and other ayurvedic compositions. This oil can also be used as an industrial raw material to make medications, fragrances, tonics, mouth fresheners, food additives, and other products. It contains anticarcinogens, which show potential for the development of medicines against cancer treatment. Betel plant farming is an agricultural activity that provides a source of income for remote farmers. Sometimes economic crises occurred due to the development of diseases such as foot rot, leaf spot, powdery mildew, and collar rot. Most farmers got seasonal revenue, whereas betel vine cultivation provided year-round income from a tiny plot of land.</strong></p> Abhaya Kumar Sahu Tutu Swikruti Sonali Kar Guddun Punam Kumari Surjendu Kumar Dey Dey Copyright (c) 2022 Abhaya Kumar Sahu Tutu, Swikruti Sonali Kar Guddun, Punam Kumari, Surjendu Kumar Dey 2022-02-04 2022-02-04 36 1 63 80 10.36253/ahsc-12290 Influence of 6-benzylaminopurine spray time after pinching on growth and flowering of Veronica dahurica Steven <p><strong><em>Veronica dahurica</em></strong> <strong>Steven (family <em>Scrophulariaceae</em>) is an ornamental plant from Korea. </strong><strong>The aim of the present study was to </strong><strong>produce multiple-branched plants by using 6-benzylaminopurine (BA) spray application at several time intervals after pinching. All 10 cm long plants were sprayed with 0, 500, 1000, and 2000 </strong><strong>mg·L<sup>-1 </sup></strong><strong>BA at 0, 7, and 14 days after pinching. Growth characteristics were examined 10 weeks after pinching and flowering time was recorded. The number of branches was highest in the group sprayed with 1000 </strong><strong>mg·L<sup>-1</sup></strong><strong> BA at 0 d after pinching. The greatest plant height was observed in the group treated with 1000 </strong><strong>mg·L<sup>-1</sup></strong><strong> BA 14 d after pinching and the minimum plant height was observed in the group sprayed with 500</strong><strong> mg·L<sup>-1</sup></strong><strong> BA at 0 d after pinching. The groups sprayed with higher BA concentrations and with longer intervals between pinching and spraying showed greater delay in the time to first flower. The flower length was decreased in the pinched and BA-treated group compared with the control. </strong><strong>Thus, BA application and pinching could promote multiple branch induction and control flowering time</strong><strong> in <em>V. dahurica</em> Steven</strong><strong>. </strong></p> Jin-Ho Kim Hye Jin Oh Sang Yong Kim Gang Uk Suh Copyright (c) 2021 Jin-Ho Kim, Hye Jin Oh, Sang Yong Kim, Gang Uk Suh 2021-09-17 2021-09-17 36 1 81 86 10.36253/ahsc-10158