Cabbage (Brassica oleracea var. capitata L.) is an important vegetable crop worldwide. In this study, response of Cabbage crop (cv. Korsina) to five different (animal, poultry, plant, plant + animal, poultry + animal) organic manure treatments as compared to the chemical fertilization (control) was evaluated under field conditions in two consecutive seasons of 2019/2020 and 2020/2021. The aim of the experiments was to determine the best organic fertilizer (manure) option (whether plant, animal, poultry) for better growth and head yield of cabbage, and to determine the best organic combination on cabbage growth. Various vegetative parameters were measured including head length with and without wrapper leaves, stem length, inner and outer stem diameters, and total head yield. The results of our study showed that some vegetative growth parameters such as stem length, and inner and outer stem diameters were significantly enhanced by the different manure treatments. Cabbage plants fertilized with plant manure had the highest mean values of total head yield. The second best treatment for enhancing total head yield of cabbage was the mixture of plant and animal manure fertilizer. We conclude that plant manure can be used either alone or in combination with animal manure for growing the studied cabbage cultivar.
T he current investigation was carried out in 2016 and 2017 in the Tissue Culture Laboratory of the Department of Vegetable Crops and Biotechnology Laboratory of the Department of Genetics, the Faculty of Agriculture, Assuit University, using the potato cv. Cara. The study assessed the phonotypical alterations and genetic stability using molecular analyses (RAPD, ISSR and SRAP). The stem single node cultures of potato cultivar 'Cara' were followed-up for three shoot multiplication cycles (subcultures) on the medium supplemented with 0.5 or 1.0 mg/l benzyl adenine (BA) or lacking the BA. Shoots on BA containing medium as compared to that on the medium lacking BA were shorter, developing multiple shoot branches and producing larger number of stem nodes/culture. The stem nodal yield increased by 87.5% and 131.3% in cultures on medium supplemented with 0.5 and 1.0 mg/l BA, respectively. Cultures of nodal explants derived from shoots propagated on BA containing medium exhibited an interrupted root formation. No roots formed after the second shoot multiplication cycle using nodal explants from shoots formerly grown on medium with 1.0 mg/l BA. In the third shoot multiplication, cycle rooting did not occur using nodal explants from shoots harvested from cultures on medium with 0.5 or 1.0 mg/l BA. The molecular assay was confirmatory to the phenotypic assay and the different marker methods used were reliable in assessing tissue culture-induced variations. Overall results are against in vitro use of BA in potato cv. Cara transplant-production media. Check of genetic stability at close intervals is advisable.
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