National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401A Comparative Study of Morphological and Volatile Oil Composition Characteristics in Diploid and Tetraploid Garlic Plants1147076510.21608/ejoh.2019.18311.1118ENEltohamy Ali AhmedYousefDepartment of Horticulture, Faculty of Agriculture, Suez Canal University, Egypt0000-0002-7437-8204Mohamed AhmedElsadekDepartment of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia,Egypt.Journal Article20191016Garlic is one of the most economically important vegetables and medicinal plants. Asexual propagation of garlic has led to a critical reduction in the genetic diversity. Tetraploidization impact on morphological characteristics and enhancement of secondary compounds of garlic volatile oil was investigated in the present study. Ploidy effects were investigated following the application of 0.2, 0.4, or 0.6% (w/v) colchicine for four durations (12, 24, 36, or 48 h.) and ploidy level was identified by morphological characterization and confirmed by chromosome counting. The morphology and oil profile, determined by gas chromatography, were compared between diploid and tetraploid garlic plants. Results showed that the efficiency of tetraploid induction ranged from 8 to 26% and the highest efficiency was achieved by applying 0.6% colchicine for 24h. Confirmed tetraploid plants had larger morphological characteristics, biochemical constituents and mineral content compared to their ancestral diploid plants. However, the essential oils of the tetraploid plants and the diploid plants were found to have a substantially similar composition. Tetraploidization induction significantly increased the concentration of diallyl disulfide, allyl methyl trisulfide and diallyl trisulfide. Because the tetraploid plants contain significantly higher concentrations of sulfur components, they have unique flavor characteristics that should be of commercial interest. We concluded that polyploid induction is an attractive technique that can be used to improve garlic yield and volatile oil composition.https://ejoh.journals.ekb.eg/article_70765_fba9652661ab7e93cd77ae43a4c557ef.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Effect of Irradiated Compost and Bio Fertilizer on Vegetative Growth and Fruit Quality of Valencia Orange15277301410.21608/ejoh.2019.21622.1124ENFatmaK. AhmedCitrus Research Department, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt.MohamedF. AhmedNatural Products Dept., National Centre for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt.Journal Article20191230This work was conducted on fruitful Valencia orange trees grown in sandy soil under drip irrigation system planted in a private<br /> <span lang="EN">orchard located at Cairo-Alexandria Desert Road for three seasons (2016 to 2019) to investigate the effect of irradiated compost and/or bio-fertilizer on Valencia orange trees. </span><br /> Concerning the studied vegetative growth parameters results could be suggested that adding 5 kg irradiated compost at 20 KGy + 30 ml bio-fertilizer /tree was the most enhancing shoot length, diameter, number of leaves/shoot as well as leaf area increment % .<br /> Regarding to yield and fruit quality, all treatments were significantly enhanced fruit yield and fruit quality with the superiority of using combination between organic + bio-fertilizer (5 kg/tree irradiated compost at 20 KGy + 30 ml bio-fertilizer). Furthermore, the thickest fruit peel thickness (5.2 mm) resulted by non-irradiated compost + 30 ml microbine. Juice TSS %, vitamin C, and TSS/acid ratio were impressively enriched by using non/or irradiated compost and/or bio-fertilizer. Moreover, all treatments were enhanced N, P and K uptakes by trees and this was reflected on the vegetative growth and yield as well as the three leaf elements concentration.<br /> The aim of this study was to improve Valencia orange vegetative growth, yield and fruit quality and to reduce the excessive use of mineral fertilizers. Thus, we concluded that the use of 5 kg irradiated compost at 20 KGy + 30 ml bio fertilizer) /tree during January can be suggested under similar conditions.https://ejoh.journals.ekb.eg/article_73014_5e91e7ab3689006c420526af0e17f844.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Production of high quality air-layers from Conocarpus erectus L. in response to IBA and Bacillus subtilis29398003310.21608/ejoh.2020.21760.1125ENEssam YosefAbdul-HafeezOrnamental and medicinal plants department, Faculty of Agriculture, Assiut University, Assiut, Egypt0000-0003-4744-4672Journal Article20191231THE CURRENT study was conducted to evaluate the rooting behavior of air-layers of Buttonwood (Conocarpus erectus L.) under IBA stimulation and/or inoculation with Bacillus subtilis. Experiment contained two branch lengths (275 and 150 cm) and six treatments of IBA (100, or 200 ppm) and B. subtilis suspension (5 or 10 ml/air-layer from suspension 108 CFU/ml) added individually or in combinations. The best results were obtained by 200 ppm IBA and/or 10 ml B. subtilis resulting in the maximum rooting percentage (100%), the highest number of roots (58.66/layer), the longest root (26.50 cm), large root volume (86.46 cm3/layer), the heaviest fresh and dry roots (82.68 and 13.50 g/layer, respectively) and maximum percentage of layers showing secondary roots (100%). These results were correlated with highest total carbohydrates content (28.40%) and total phenolic compounds (52.41 mg Gallic acid equivalent/g DW). The interaction effects indicated that the superior combined treatment was occurred by shoot length of 150 cm supplied with 200 ppm IBA + B. subtilis.https://ejoh.journals.ekb.eg/article_80033_c8c459e5cc365e3f85e514b47088db3d.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Effect of Benzyl Adenine, Indole Acetic Acid and Gibberellic Acid on Vegetative Growth, Chemical Constituents and Volatile Oil Attributes of Sweet Basil Plants41568003410.21608/ejoh.2020.23401.1126ENAhmedNazmyDepartment of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo, EgyptJournal Article20200202Benzyl adenine, indole acetic acid and gibberellic acid at different concentrations were sprayed to study their effects on growth, chemical components and volatile oils of sweet basil in 2018 and 2019 seasons<br />Plant height, number of leaves/plant, average leaf area, and herb fresh and dry weights/plant greatly improved with the applied treatments especially with IAA treatments followed by GA3 treatments. However, the number of lateral branches/plant and stem diameter were increased with BA treatments especially with 10 ppm than 5 ppm. Generally, the second cut was superior in the studied vegetative growth parameters than the first cut. <br />The highest values of N, P, K, Fe, and Mn were recorded with BA at 10 ppm, whereas higher Zn values were recorded with BA at 5 ppm. Active ingredients including total phenols, total flavones, total chlorophyll, and L- ascorbic acid greatly increased with IAA at 50 or 100 than the other treatments or the control. However, volatile oil percentage and volatile oil content/plant were high in IAA at 50 or 100 ppm followed by GA3 at 200 ppm. The second cut was superior to the first cut in promoting volatile oil percentage and volatile oil content/plant in both studied seasons. The main components in volatile oil were 1,8-cineole, linalool, á-trans-bergamotene, germacrene D and á-muurolol. The highest values of linalool, the main component in the volatile oil of sweet basil (50.90%) was recorded by IAA at 100 ppm.https://ejoh.journals.ekb.eg/article_80034_1c1e850dcf177db44d5332248f595c6e.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Impact of Climate Change on Water Requirements and The Productivity on Potato Crop57689011310.21608/ejoh.2020.27403.1130ENMustafa MohamedMeligyAgro-Meteorology Department, Central Laboratory for Agricultural Climate (CLAC), Agricultural Research Center (ARC), Giza, Egypt.AymanAbou-HadidArid Lands Agricultural Studies and Research Institute (ALARI)
Faculty of Agriculture, Ain Shams University.Mohamed ZakyEl-ShinawyDepartment of Horticulture, Faculty of Agriculture, Ain Shams University, Egypt.0000-0002-3654-3125UsamaEl-BehairyArid land Agricultural graduate studies and Research Institute (ALARI) Faculty of Agriculture, Ain Shams University.Journal Article20200412Two field trials were carried out during the two consecutive seasons,of 2014/2015 and 2015/2016, at the Experimental Farm of Arid Land Agricultural graduate studies and Research Institute (ALARI), Faculty of Agriculture, Ain Shams University in Shubra el-Khaimah, Qalyubiah Governorate. The aim of the current investigation was to study the impact of three planting dates (18-Dec, 7-Jan and 27-Jan), three irrigation levels at 60, 80 and 100% of irrigation water requirements (IR) and their interaction on potato crop productivity. 9 treatments were obtained by combination of different planting dates and irrigation levels. Planting dates were arranged as the main plots, while, irrigation levels were arranged in the sub plots, The obtained results indicated that the highest tuber yield was obtained by the first planting date (18 Dec.) during both studied seasons, While, The highest plant growth parameters and tuber yield per plant were obtained by 100% followed by 80% irrigation level during both seasons. However, the interaction effectindicated that first planting date (18-Dec) combined with 100 % irrigation level gave the highest potato tuber productivity than the other treatments, whereas the interaction of first planting date )18-Dec) combined with 80% irrigation level gave the best for water use efficiency compared to the other treatments during both tested seasons.https://ejoh.journals.ekb.eg/article_90113_9714761cec906e9997e757b6b9e8af6f.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Upcycling of Oyster Mushroom Spent Through Reuse as Substrate in Sequential Production Cycles of Mushroom69799571810.21608/ejoh.2020.25962.1129ENHend AhmedHamedHorticulture Departement,Faculty of Agriculture,Sohag University,Sohag,EgyptMohamed Fouad MohamedAbdallaDepartment of vegetable crops,Faculty of Agriculture,Assiut university,Assiut0000-0001-7657-6223Maher HassanHosseneyHorticulture Departement,Faculty of Agriculture, Sohag University, Sohag,EgyptKhalid AhmedElshaikhHorticulture Department, Faculty of Agriculture, Sohag University, EgyptJournal Article20200316Agro-industrial by-products are potential environmental pollutants. Achieving sustainability leads us to think for handling them in an environmentally friendly way. The present framework was designed to investigate the potential of subsequent utilization of mushroom spent substrate (MSS) of oyster mushroom (<em>Pleurotus ostreatus var. columbinus</em>) cultivation. Two consecutive trials (2018 and 2019) were conducted at Mushroom Laboratory, Sohag University, Egypt. Fresh rice straw (RS) was used along with mushroom spent substrate (MSS) as control treatments and compared with another three different mixtures of RS:MSS as follows: 1:2, 1:1, and 2:1. The agronomic parameters of the new growing cycle of oyster mushroom, as well as the chemical compounds of substrates were investigated. Data revealed that pure (RS) substrate gave the greatest fruiting bodies yield and number/500g substrate, average fruiting bodies weight, and both of the cap diameter and stem length. In contrast, sole (MSS) gave the least values in both trials. Employing RS and MSS<br /> <span lang="EN">substrate mixture at </span><strong><span lang="AR-YE">2</span></strong><span lang="EN">:1 ratio exceeded the other two formulations concerning the above-mentioned parameters. Relative to RS, the analyses of substrates nutritive compounds in MSS showed a significantly higher percentage of N, P, K, total carbohydrates and total ash after cultivation , but had a lower percent in total carbon, hemicellulose, cellulose, and lignin. In conclusion, SMS alone can›t be considered a potent substrate for further mushroom production. However, it may be used as a filler material in combination with RS but at low ratio.</span>https://ejoh.journals.ekb.eg/article_95718_f44d51b0d30e8a574023241217c1ac01.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Influence of Sowing Date and Foliar Application of Humic Acid on Yield and Volatile Oil of Sweet Fennel (Foeniculum vulgare) Plants81929572210.21608/ejoh.2020.28165.1132ENEssam YosefAbdul-HafeezOrnamental and medicinal plants department, Faculty of Agriculture, Assiut University, Assiut, Egypt0000-0003-4744-4672YassinSolimanDepartment of Horticulture, Faculty of Agriculture, Sohag UniversityAlaaElsayedDepartment of Horticulture, Faculty of Agriculture, Sohag UniversityJournal Article20200417A field trial was conducted to assess the effect of humic acid concentrations (0, 1.5, 3.0 and 4.5 g/l) on growth, yield and volatile oil constituents of fennel sown on 15<sup>th</sup> October, 1<sup>st</sup> November and 15<sup>th</sup> November during the two successive seasons of 2017/2018 and 2018/2019. The earliest date (15<sup>th</sup> October) recorded the best results regarding all fennel growth, yield and fruit constituents of volatile oil yield. Foliar application of humic acid in high concentration (4.5 g/ml) showed significant impact on plant height, branch number/plant, stem diameter, number of umbels/plant, fruit yield/plant, total fruit yield/feddan, volatile oil percentage, volatile oil/plant and volatile oil/feddan during both seasons. Volatile oil of fruits collected from plants sown in mid-October induced the highest percentage of anethole (74.96 %) and the lowest percentage of estragole (15.37%) in comparison with the plants sown in the beginning and middle November. The higher concentration of humic acid increased the percentage of anethole comparing with other concentrations. The foliar application by humic acid in high concentration of fennel sown in mid-October seems to be the best combination for getting higher fruit yield and high quality of volatile oil.https://ejoh.journals.ekb.eg/article_95722_e3d84b6ee866c622f645b6ae353e886d.pdfNational Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)Egyptian Journal of Horticulture1110-020647120200401Relative Comparison Salinity Stress Tolerance for “Manfaluty” and “Wonderful” Pomegranate Cultivar Transplants9310811613710.21608/ejoh.2020.36542.1139ENNoha IbrahimMansourDepartment of horticulture faculty of Agricultur Ain Shams University0000-0002-3727-9303Journal Article20200728The goal was to evaluate the response of pomegranate cultivar transplants “Manfaluty” and “Wonderful” for salinity stress. A pot investigation was conducted during (2016 and 2017) seasons in a glasshouse, Faculty of Agriculture, Ain Shams Univ., Shoubra EL- Kheima, Egypt. Pots were arranged in a randomized complete design with two factors, the first one was pomegranate cultivars which included two cultivars namely (Manfaluty and Wonderful) and the second factor was NaCl levels whereas, transplants were irrigated with five levels of water salinity (0, 20, 40, 60, and 80 mM NaCl). It could be summarized results in some main points:<br /> - Both pomegranate cultivars were moderately resistant to salinity up to 40 Mm NaCl with slight growth reduction.<br /> -More increase in salinity level up to 60 and 80 mM NaCl reduction growth around 50-70% compared with untreated transplants. Generally, “Manfaluty” had a slightly higher reduction in growth than “Wonderful”.<br /> -Increasing salinity levels caused a significant reduction in leaf K content otherwise Na was accumulated in the leaves of both ‘pomegranate cultivars.<br /> -Proline leaves content, increased gradually by the increase in salinity levels up to (60 mM NaCl), and the highest significant values of proline content were obtained when combing (60mM NaCl) with “Wonderful”.<br /> So it could be concluded that, increasing salinity level more than 40 mM NaCl will inhibit pomegranate growth and make an imbalance of nutrient status in pomegranate transplants with slight differences between the response of two cultivars.https://ejoh.journals.ekb.eg/article_116137_359cc1549ee667794568f120d80ddd60.pdf