Effect of aqueous extract of clove basil (Ocimum gratissimum L.) and soil amendment with cassava peels compost on nutrients, pesticide residues, yield and antioxidant properties of sweet pepper (Capsicum annuum L. (original) (raw)
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Plants
The increasing demand of organic agriculture (OA) is based on the consumer’s belief that organic agricultural products are healthier, tastier and more nutritious. The effect of OA and conventional agriculture (CA) methods on the elemental compositions of green and red sweet peppers were studied. The highest concentrations of Ca, Cu, K and P occur in peppers from OA in both states of ripeness, with emphasis on Ca and K contents. Furthermore, the principal component analysis (PCA), points out to a clear separation, regarding concentrations, between peppers from OA and CA. The average fruit weight is higher in OA, 141 g versus 112 g in CA. Regarding productivity, CA reaches a value of 30.1 t/ha, 7% higher than the value observed for OA, i.e., 28 t/ha. Peppers from CA, exhibited greater protein content than those which originated from OA, regardless of the ripening stage, but not more ashes. Regarding nutritional ratios, the ripening stage and the production mode, can be important for a...
—Plastic house experiment was conducted during the two successive seasons of 2013/2014 and 2014/2015, at organic farm in El-Aiat district, Giza Governorate, Egypt. This study aims to evaluate the organic production of two hybrids of sweet (bell) pepper using different sources of organic fertilizers under plastic house conditions. Five sources of organic fertilizers (quail, turkey chicken, rabbit manures and compost) as recommended dose of nitrogen for sweet pepper were investigated on vegetative growth, nutritional content, yield component and fruit quality of two hybrids of sweet pepper (Bunjii red fruit and Shunghi yellow fruit). The experimental treatments were arranged in split plot design with three replicates, where two hybrids of sweet pepper treatments were adapted in the main plots while five types of organic fertilizers treatments were randomized in the subplots. Obtained results showed that using compost produced the highest values of plant height, N% of bell pepper plants, as well as the maximum early, total yield and fruit length. Applying compost and chicken manure produced the highest values of fruit weight, total soluble sold and vitamin C content of pepper fruits. Compost, chicken and turkey manure treatments gave the maximum number of leaves per plant and chlorophyll reading of pepper leaves, percent of P and K in plants, fruit diameter and number of fruits / plant. There were no significant differences among all organic fertilizer treatments in firmness of pepper fruits. Generally, Bunjii hybrid was superior in the most of tested parameters compared to Shunghi hybrid of pepper.
Investigating the antioxidant Content of Sweet Pepper in Response to Fertilisers
Journal of Agricultural Science and Food Technology, 2020
A pot experiment was conducted to compare the vegetative performance, yield and antioxidant content of Capsicum Annuum L. (Sweet pepper) in response to three sources of fertilizers i.e. organic (cow manure compost; 5% N: 3% P2O5:1% K2O), inorganic (NPK; 12% N, 24%P, 12%K) and a source of bio-organic fertilizer containing two strains of bacteria, Lactobacillus acidophilus and Saccharomyces cerevisiae. The treatments were set up in a completely randomized design, with four (4) treatments each having three (3) replicates. The green mature sweet peppers were harvested from the respective treatments and were tested for the different secondary metabolites. The Inorganic fertilizer treatment gave better results for all growth and reproductive performances compared to the other treatments. Total carotenoid content (TCC), total flavonoid content (TFC) and total phenolic content (TPC) were higher as a result of the organic fertilizer treatment. The results indicated that there is an excellent potential for enhancing antioxidant compounds of sweet pepper for economic production using organic fertilization, for these two treatments that resulted in increased antioxidant constituents.
2018
Two plastic house experiments were designed to study the effect of bio fertilization and sources of organic fertilizer on yield and fruit quality of sweet pepper under sandy soil conditions. A split plot design was used with three replicates for each treatment. Bio fertilization treatments were randomly distributed in the main plots, while sources of organic fertilizer treatments were arranged among the sub plots. Bio fertilization gave significantly higher values of vegetative growth, NPK concentration in leaves and fruits and yield. Using compost as a source of organic fertilizer resulted in greater values of vegetative growth, NPK concentration in leaves and fruits, early yield, total yield, total number of fruits per plot, and fruit length and diameter as compared to the other sources of organic manures (quail, turkey, chicken and sheep manures). The combined treatment between compost and bio fertilization gave the highest significant increase in all above mentioned characters. ...
Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences, 2020
Bell pepper crop is among the ten most important vegetables in Brazil. Using organic fertilizers as an alternative to mineral fertilizers is an integral part of the search for safe food from organic production systems. The objective of the present study was to evaluate the quality of red bell pepper fruits, grown under soil cover and organic and or mineral fertilization. Treatments consisted of three soil cover types [no cover; covered with carnaúba straw (Copernicia prunifera) and covered with weeding] and fertilizers [100% organic (OF) and 0% mineral (MF); 100% OF and 50% MF; 50% OF and 50% MF; 50% of OF and 100% of MF and 0% of OF and 100% of MF], the design used was randomized blocks with a split plot arrangement of 3 x 5 and 4 replicates. Analyzed variables were color, firmness, pH, soluble solids (SS), titratable acidity (TA), ratio (SS/TA), vitamin C, carotenoids, total flavonoids and phenols. For bell pepper fruits, soil cover with carnaúba straw provided better carotenoid content. Organomineral fertilization increased carotenoids and phenols accumulation and the treatment with only organic fertilization resulted in lower contents of these bioactive compounds.
Nutritional Value of New Sweet Pepper Genotypes Grown in Organic System
Agriculture
The market request for organic vegetables has grown recently for their positive impact on healthy diets. Consumers have progressively shown preferences for various combinations of color, size, and shape of pepper fruits. Facilitating communication, collaboration, and participation in the selection of cultivars with superior performance, flavor, texture, and culinary attributes can represent a key tool in breeding for nutritional and culinary traits. The current research started from the premise that organic production involves achieving adequate nutritional and culinary quality of pepper fruits. The study was conducted to investigate traits related culinary quality of pepper genotypes, especially in the ripening phase of fruits, to select the best resources with a high antioxidant content for breeding programs. The biological material represented by nine genotypes of sweet pepper was cultivated in the open fields during 2019 and 2020 at the experimental stations of the Vegetable Res...
Journal of the Science of Food and Agriculture, 2012
BACKGROUND: Sweet red bell pepper is one of the best sources of ascorbic acid and carotenoids as well as phenolic compounds important in the human diet. There have been some studies showing a higher level of bioactive compounds in organic bell pepper fruits compared with conventional fruits, but not all studies have been consistent in this respect. The levels of carotenoids and phenolics are very variable and may be affected by ripeness, genotype and cultivation. RESULTS: The results obtained in this study showed that an organic growing system affected the level of bioactive compounds (carotenoids and polyphenols) in sweet bell pepper fruits cultivated in Poland. Organic bell pepper fruits contained significantly more dry matter, vitamin C, total carotenoids, β-carotene, α-carotene, cis-β-carotene, total phenolic acids (as well as individual gallic and chlorogenic acids) and flavonoids (quercetin D-glucoside, quercetin and kaempferol) compared with conventional fruits. The bell pepper variety also affected the level of antioxidant compounds in fruits. CONCLUSION: Organic growing increased the level of antioxidant compounds such as carotenoids, phenolic compounds and vitamin C in sweet bell pepper. The second significant factor affecting the antioxidant compound content of sweet bell pepper was variety. It would be necessary to continue this study as a long-term experiment in order to eliminate the influence of seasonality.
Growth, Yield and Fruit Quality of Sweet Pepper Plants as Affected by Some BioOrganic and Mineral
Two field trials were conducted at the Experimental Farm of the Faculty of Agriculture, Tanta University, Egypt, during the summer growing seasons of 2011 and 2012, to evaluate the effect of some bio organic and mineral fertilizers (compost at 10, 15 and 20 ton/fed., Easternabiofert at 50, 100 and 150 kg/fed. plus recommended dose of organic manure, the mixture of bio-fertilizers (Phosphorein, Potassiumage and Rhizobacterin) combined with 75% of the recommended dose of mineral fertilizers and farmyard manure and 100 % of recommended dose of mineral fertilizers plus farmyard manure) on growth, flowering, yield and fruit quality of sweet pepper plants cv. California Wonder. The obtained results indicated that, the application of the three treatments; (the first was recommended dose of NPK plus farmyard manure, the second was 75% recommended dose plus Phosphorein, Potassiumage and Rhizobacterin the third treatment was Easternabiofert at 150 Kg/fed plus recommended dose of organic manure,) followed by compost at 20 ton/fed., significantly increased plant height, number of branches per plant, number of leaves per plant, fresh and dry weight of whole plant, photosynthetic pigments i.e. chlorophyll a, b and carotenoids, Endogenous phytohormones i.e. auxins, gibberellins and cytokinins, fruit weight, number of fruits per plant, dry weight of fruit and early and total fruit yield. Also, significant effects were obtained for N% and P% in the leaves as well as Vitamin C, N % and P % in the fruits in both seasons. There were no significant differences between these treatments and the complete recommended dose of NPK mineral fertilizers in this concern. Different Bio organic treatments resulted in the lowest values of nitrate in fruits, in the two growing seasons. The application of 75% recommended dose of NPK and organic manure plus the mixture of bio-fertilizers (phosphorein, potassiumage and rhizobacterin) or Easternabiofert at 150 Kg/fed plus recommended dose of organic manure can be used in sweet pepper production without reducing the productivity and quality. These bio organic fertilizers treatments will reduce the cost of chemical fertilizers, avoid the risk of nitrate accumulation in the edible portions and decrease the pollution of the environment. Also, applying the compost at 20 ton/fed. leads to lower productivity compared to the full dose of mineral fertilizers, but the yield will be higher in price, achieving more profit for producers.
Quality Performances of Sweet Pepper under Farming Management
Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2018
Conventional management of sweet pepper is based on farming practices characterized by the use of chemicals with harmful environmental impact. In order to investigate innovative production, research was carried out in order to assess the effects of two pepper cultivars (‘Brillant’ and ‘Yolo Wonder’) in combination with four farming systems (Conventional control-C; Conventional with microorganism-enriched fertilization-CMF; Organic control-O; Organic with microorganism-enriched fertilization-OMF) on plant physiological parameters, yield and fruit quality. Conventionally grown plants showed higher values of assimilatory pigments and of photosynthetic rate compared to the Organically ones. The CMF resulted in the highest early and total yield, followed by the OMF, due to higher fruit number. Higher values of carotenoids, ascorbic acid and α-tocopherol were recorded in ‘Yolo Wonder’ red fruits compared to ‘Brillant’ yellow berries. The highest total polyphenols concentration was recorde...
Foods
Phytochemicals and antioxidant properties of red sweet pepper cv Topepo grown in soil amended with different organic fertilizers were compared with that grown in unamended soil. Organic fertilizers are an environmentally friendly alternative to recovery infertile soils that resulted from the intensified agricultural practices in red Topepo production. The aim was to discriminate the effects of organic fertilizers one from each other on the quality of red Topepo to find out the better sustainable fertilization practice for its cultivation. Results showed that compost from vegetable residues (CV) enhanced the synthesis of total phenols, flavonoids, ascorbic acid, vitamin E, carotenoids, anthocyanins, as well as carbohydrates, antioxidant activities, and aroma profiling, compared to horse manure (HD), compost from olive pomace (CO), and control (CTR). The results indicated a specificity between the quality of red Topepo and compost composition, highlighting that vegetable residues incr...