scholarly journals Hydrolyzed Organic Fish Fertilizer and Poultry Litter Influence Total Phenolics and Antioxidants Content but Not Yield of Amaranth, Celosia, Gboma, and Long Bean

HortScience ◽  
2013 ◽  
Vol 48 (6) ◽  
pp. 768-772
Author(s):  
Loutrina Staley ◽  
D.G. Mortley ◽  
C.K. Bonsi ◽  
A. Bovell-Benjamin ◽  
P. Gichuhi
Keyword(s):  
Vitamin C ◽  
Total Phenolics ◽  
Block Design ◽  
Poultry Litter ◽  
Organic Amendments ◽  
Carotene Content ◽  
Amaranthus Hybridus ◽  
Randomized Complete Block Design ◽  
Dry Biomass ◽  
Celosia Argentea

Dietary intake of a variety of vegetables is very important for disease prevention and may help in the treatment of certain maladies. Experiments were conducted to evaluate yield and the content of antioxidants and phenolics of vegetable Amaranth (Amaranthus hybridus), Celosia (Celosia argentea), Gboma (Solanum macrocarpon), and Long Bean (Vigna unguiculata) in response to poultry litter (PL) and a hydrolyzed fish fertilizer [Megabloom (MB)]. The experiments were conducted as a randomized complete block design with a four × three factorial treatment and four replications. The treatments were applied based on soil test recommendations in a single band 15 to 20 cm away from the plants 1 week after transplanting. Plants were harvested sequentially during the season as foliage and fruits became physiologically mature and once over at the end of the season. Species were analyzed for vitamin C content, total phenolics, and β-carotene content as well as antioxidant capacity. Organic amendments did not significantly influence biomass production, whereas species impacted fresh and dry biomass. Amaranth, Celosia, and Long Bean produced greater fresh and dry biomass than did Gboma. Vitamin C content was highest among Amaranth and Celosia plants receiving nitrogen–phosphorus–potassium (NPK) compared with the other two treatments, whereas that of Gboma was higher among plants receiving MB.

scholarly journals Influence of feeding different vegetables on plasma levels of carotenoids, folate and vitamin C. Effect of disruption of the vegetable matrix

1999 ◽  
Vol 82 (3) ◽  
pp. 203-212 ◽  
Author(s):  
Karin H. van het Hof ◽  
Lilian B. M. Tijburg ◽  
K. Pietrzik ◽  
Jan A. Weststrate
Keyword(s):  
Vitamin C ◽  
Plasma Levels ◽  
Vegetable Intake ◽  
Block Design ◽  
Plasma Concentrations ◽  
Carotene Content ◽  
Beneficial Effects ◽  
Incomplete Block Design ◽  
Β Carotene ◽  
Green Peas

Carotenoids, folate and vitamin C may contribute to the observed beneficial effects of increased vegetable intake. Currently, knowledge on the bioavailability of these compounds from vegetables is limited. We compared the efficacy of different vegetables, at the same level of intake (i.e. 300 g/d), in increasing plasma levels of carotenoids, folate and vitamin C and we investigated if disruption of the vegetable matrix would enhance the bioavailability of these micronutrients. In an incomplete block design, sixty-nine volunteers consumed a control meal without vegetables and three out of four vegetable meals (i.e. broccoli, green peas, whole leaf spinach, chopped spinach; containing between 1·7 and 24·6 mg β-carotene, 3·8 and 26 mg lutein, 0·22 and 0·60 mg folate and 26 and 93 mg vitamin C) or a meal supplemented with synthetic β-carotene (33·3 mg). Meals were consumed for 4 d and fasting blood samples were taken at the end of each period. Consumption of the spinach-supplemented meal did not affect plasma levels of β-carotene, although the β-carotene content was 10-fold those of broccoli and green peas, which induced significant increases in plasma β-carotene levels (28 (95 % CI 6·4, 55) % and 26 (95 % CI 2·6, 54) % respectively). The β-carotene-supplemented meal increased plasma concentrations of β-carotene effectively (517 (95 % CI 409, 648) %). All vegetable meals increased the plasma concentrations of lutein and vitamin C significantly. Broccoli and green peas were, when expressed per mg carotenoid consumed, also more effective sources of lutein than spinach. A significant increase in plasma folate concentration was found only after consumption of the spinach-supplemented meal, which provided the highest level of folate. Disruption of the spinach matrix increased the plasma responses to both lutein (14 (95 % CI 3·7, 25) %) and folate (10 (95 % CI 2·2, 18) %), whereas it did not affect the response to β-carotene. We conclude that the bioavailabilities of β-carotene and lutein vary substantially among different vegetables and that the bioavailabilities of lutein and folate from spinach can be improved by disruption of the vegetable matrix.

Post harvest behavior of tomato as influenced by nitrogen and potassium levels

2019 ◽  
Vol 4 (02) ◽  
pp. 140-147
Author(s):  
S. Paudel ◽  
P. Pantha
Keyword(s):  
Weight Loss ◽  
Lycopersicon Esculentum ◽  
Vitamin C ◽  
Shelf Life ◽  
Block Design ◽  
Ambient Condition ◽  
Tomato Fruits ◽  
Color Development ◽  
Randomized Complete Block Design ◽  
Four Levels

Tomato (Lycopersicon esculentum) is highly perishable and has potential for processing industries in bumper producing seasons in Nepal. The study on judicious use of nitrogen and potassium levels was aimed to explore the quality attributes along with the shelf life of tomato fruits. Three levels of nitrogen comprising 0 kg/ha (N0), 100 kg/ha (N100), 200 kg/ha (N200) and four levels of potassium 0 K2O kg/ha (K0), 80 K2O kg/ha (K80), 160 K2O kg/ha (K160), 240 K2O kg /ha (K240) were used as treatments in randomized complete block design with three replications at Chitwan (Inner Terai) Nepal. Tomatoes at breaker stage were harvested from the field and 10 fruits from each treatment per replication were kept for physiological weight loss, color rating and shelf life in ambient condition (17.5±3 0C and 80.5±6.5 % RH). Fruit quality with respect to physicochemical properties like firmness, TSS, TA, pH and Vitamin C was assessed at the end of shelf life. Higher potassium levels hasten color development and increased TSS, firmness and vitamin C content. Physiological weight loss was greatly reduced and extended shelf life was achieved with 100 kg N/ha and 240 kg K2O/ha.

scholarly journals Response of T. Aman Rice (Oryza sativa L.) to S, Mg, Zn, B, Mo and Organic Amendments in Tista Meander Floodplain Soil

2010 ◽  
pp. 14-19
Author(s):  
GKM Mustafizur Rahman ◽  
R Ashrafi ◽  
MB Hossain ◽  
ML Rahman
Keyword(s):  
Oryza Sativa ◽  
Field Experiment ◽  
Block Design ◽  
Poultry Manure ◽  
Organic Amendments ◽  
Control Plot ◽  
Floodplain Soil ◽  
Randomized Complete Block Design ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

A field experiment was conducted at the BINA sub-station of Tajhat, Rangpur in the Tista Meander Floodplain soil during aman season 2003 to study the response of T. aman rice to S, Mg, Zn, B, Mo and organic amendments. The experiment was laid-out in a randomized complete block design with nine treatments is with three replications as T1: complete (S + Mg + Zn + B + Mo), T2: complete–S, T3: complete–Mg, T4: complete–Zn, T5: complete–B, T6: complete–Mo, T7: cowdung @ 5 t/ha, T8: poultry manure @ 5 t/ha and T9: control. Nitrogen, phosphorus and potassium were applied in recommended doses as basal. The highest grain (3927 kg/ha) and straw (4472 kg/ha) yields were recorded with the application of poultry manure, followed by cowdung and complete (S+Mg+Zn+B+Mo) treatment. The lowest yield was recorded in the control plot. The overall results indicate that application of organic amendments with NPK gave satisfactory yield of T. aman rice in the Tista Meander Floodplain Soil.

Physiological and phytochemical responses of red amaranth (Amaranthus tricolor L.) and green amaranth (Amaranthus dubius L.) to different salinity levels

2019 ◽  
Author(s):  
L. H. Hoang ◽  
C. C. De Guzman ◽  
N. M. Cadiz ◽  
D. H. Tran
Keyword(s):  
Total Phenolics ◽  
Saline Soil ◽  
Growth Parameters ◽  
Block Design ◽  
Garden Soil ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Amaranthus Tricolor ◽  
Randomized Complete Block Design ◽  
Salinity Levels

TThe physiological and phytochemical responses of red amaranth (Amaranthus tricolor L.) and green amaranth (Amaranthus dubius L.) to different salinity levels were determined in two experiments conducted in Vietnam. Both experiments were performed in a net house involving pot experiments arranged in randomized complete block design (RCBD) with three replications. Two genotypes of amaranth were grown in garden soil, saline soil, 50% garden soil: 50% saline soil and 25, 50 and 100 mM NaCl. Salinization was imposed at 7, 14 and 21 days after transplanting. Results indicated that salt stress decreased growth parameters and biomass production in all treatments except for 25 mM NaCl. Na+ and Cl- content accumulated in both shoot and root, however, root had greater NaCl content than shoot. Total phenolics, total flavonoid content and antioxidant activity increased with increasing salinity levels from 25 mM to 50 mM NaCl; however, at 100 mM NaCl, all these parameters decreased. These results showed that red amaranth was more tolerant to salinity stress than green amaranth.

scholarly journals Response Of Cauliflower To Nitrogen Fixing Biofertilizer And Graded Levels Of Nitrogen

2013 ◽  
Vol 12 ◽  
pp. 41-50 ◽  
Author(s):  
Lila Nath Bashyal
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Nitrogen Fixing ◽  
Stem Height ◽  
Free Living ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Agriculture And Environment ◽  
Different Levels ◽  
Brassica Oleracea L

A field experiment was carried out at Rampur, Chitwan, Nepal during September, 2007 to February, 2008 to assess the response of cauliflower (Brassica oleracea L. var. botrytis cv. Kathmandu Local) to biofertilizer containing free living nitrogen fixing bacteria Azospirillum and Azotobacter and different levels of nitrogen. The experiment was laid out in factorial Randomized Complete Block Design consisting of 10 treatments (nitrogen 0, 30, 60, 90 and 120 kg ha–1 alone and in combinations of 2 kg of the nitrogen fixing biofertilizer) arranged in 5 × 2 complete factorial with 3 replications. Application of nitrogen along with the biofertilizer significantly increased morphological, yield and quality characters as compared to application of nitrogen without biofertilizer. The maximum stem height, stem diameter, highest curd height, curd diameter, fresh curd weight and curd yield were recorded at 120 kg nitrogen and 2 kg biofertilizer ha–1. Cauliflower curd yield obtained at 120 kg nitrogen ha–1 did not significantly differ with the curd yield recorded at 60 kg nitrogen and 2 kg biofertilizer ha–1. The earliest days to curd initiation and maturity were recorded at 30 kg nitrogen and 2 kg biofertilizer ha–1. The highest vitamin C content of curds and the most attractive curd color were recorded at 60 kg nitrogen and 2 kg biofertilizer ha–1, while the appearance and over all acceptability were recorded at 120 kg nitrogen and 2 kg biofertilizer ha–1. The finding demonstrated a saving of 60 kg nitrogen ha–1 without significantly affecting yield. The Journal of Agriculture and Environment Vol:12, Jun.2011, Page 41-50 DOI: http://dx.doi.org/10.3126/aej.v12i0.7562

scholarly journals Response of sweetpotato to the combined application of organic and inorganic fertilizers in marginal upland

2018 ◽  
pp. 1-17
Author(s):  
Berta Ratilla ◽  
Jay-Ar Bagarinao ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Organic Amendments ◽  
Growth Yield ◽  
Crop Productivity ◽  
Growth And Yield ◽  
Root Yield ◽  
Combined Application ◽  
Randomized Complete Block Design ◽  
Control Root ◽  
Organic And Inorganic Fertilizers

Marginal uplands are characterized by low soil fertility and crop productivity. To alleviate the problem, organic amendments combined with inorganic fertilizer were tested to assess their effects on the growth and yield performance of sweetpotato; determine the option treatment combination; and assess the soil physicochemical properties. A Randomized Complete Block Design (RCBD) was used with 3 replications and 7 treatments, namely: T0 = (0-0-0); T1 = 1 t ha-1 Evans + 30-30-30 kg N, P2O5, K2O ha-1; T2 = 1 t ha-1 Wellgrow + 30-30-30 kg N, P2O5, K2O ha-1; T3 = 15 t ha-1 chicken dung alone; T4 = 10 t ha-1 chicken dung + 30-30-30 kg N, P2O5, K2O ha-1; T5 = 15 t ha-1 Vermicast alone; and T6 = 10 t ha-1 Vermicast + 30-30-30 kg N, P2O5, K2O ha-1. Application of 10 t ha-1 of either chicken dung or vermicast plus 30-30-30 kg N, P2O5, K2O ha-1 in Inopacan, Leyte produced higher total root yield over the control. Root yield during the second cropping greatly increased to 16.19 t ha-1 which is almost 3 times higher than the first crop when 15 t ha-1 chicken dung alone (T3) was used. In Sta. Rita, Samar, most of the growth, yield, and yield parameters of sweetpotato were not affected by the treatments. Moreover, only a slight improvement in soil properties was noted.

scholarly journals Manures Effectivity to Enhanced the Availability of Phosphorus, Crops Growth and Yield of Rice and Corn in Acid Upland Soil

2008 ◽  
Vol 13 (1) ◽  
pp. 41-47
Author(s):  
Yoyo Sulaiman
Keyword(s):  
Grain Yield ◽  
Rainy Season ◽  
Rock Phosphate ◽  
Upland Rice ◽  
Block Design ◽  
Growth And Yield ◽  
Upland Soil ◽  
Randomized Complete Block Design ◽  
Dry Biomass ◽  
High Application

The research was conducted in Tamanbogo Station Research in the 2007 Rainy Season in upland rice-corn intercropping farming. The research design used Randomized Complete Block Design with 3 replications. The treatments were 1). 15 t ha-1 manures + Residues of rock phosphate (RRP),  2). Without manures + RRP, 3). 15 t ha-1 manures + 150 kg  ha-1 SP 36 and  4). Without manures + 150 kg ha-1 SP 36. The upland rice was seeded in planting space of 25 cm x 25 cm, 2-3 seeds/hill. The land was treated with 1 t ha-1 of RP in the last farming year while SP36 was applicated each season. Urea and KCl fertilizers that were used on upland rice were 300 kg ha-1 and 100 kg ha-1, respectively while corns were fertilized with 250 kg ha-1 urea and 100 kg KCl ha-1. The research results showed that the availability of N and K nutrients in the soil at the time of before planting was low but the availability P was high. Application of manures and RRP increased C-organic, availability of P , Ca and  Cation Exchangeable Capacity in the soil. Application of 15 t ha-1 of manures with RRP increased dry biomass weight of rice and corn, there were 45.17 % and 49.23 %, respectively. The grain yield of rice and corn on the treatment of manures and RRP were not gave significant different compare to the yield was gained with SP 36  fertilizer.

scholarly journals Effect of Plant Spacing and Foliar Spraying with Vitamin C on Growth  and Yield of Okra (Abelmoschus esculentus L.): تأثير مسافة الزراعة والرش بفيتامين ج في نمو وحاصل نبات الباميا  .Abelmoschus esculentus L

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Nadia Nasser Hamid
Keyword(s):  
Vitamin C ◽  
Leaf Area ◽  
Vegetative Growth ◽  
Block Design ◽  
Fruit Weight ◽  
Abelmoschus Esculentus ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Randomized Complete Block Design ◽  
Pod Length

An experiment was conducted during the Agricultural spring seasons 2019 at Abul-Khasib, Basrah. The experiment included 6 treatments combination resulted from the interaction between two plant distances (30 and 60 cm apart), with the addition of three concentrations of vitamin C (0, 20, 40) Mg. liter-1. Randomized Complete Block Design was used in a factorial experiment, mean variations replication compared at 0.05. Results can be summarized as follows: The plant spacing of 60 cm caused a significant effect on the all of the results of vegetative growth (leaves number, surface leaf area, total soluble of carbohydrates contents and chlorophyll) except plant height it gave a significant increase in 30 cm. whereas, the plant spacing of 60 cm gave a significant reduction in the (fruit weight, fruit number. plant-1 and yield. plant-1). Regarding the spraying, levels increased significantly in all component, except pod length it gave a significant decrease in vitamin C levels increased. While there was no significant effect on the interaction between the two studied factors.

scholarly journals Effect of Compost Type on Bermudagrass Invasion

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 789D-789
Author(s):  
Kristen L. McDowell* ◽  
Kevin Ong ◽  
Derald A. Harp
Keyword(s):  
Block Design ◽  
Poultry Litter ◽  
Dairy Manure ◽  
Yard Waste ◽  
Full Coverage ◽  
Randomized Complete Block Design

A study was conducted on the Texas A&M Univ.-Commerce campus to evaluate the effect of compost type on the spread of bermudagrass into rose garden beds. Roses were planted in an randomized complete-block design in beds amended with composts derived from yard waste, manure, poultry litter, or dairy manure, or an unamended control. The study site was free of vegetation prior to planting. No pre- or post-emergent herbicides were applied after planting. Each bed was assessed visually monthly and scored on a scale of 0 to 10, with each point equivalent to 10% coverage. A bed received a score of 10 upon full coverage. Beds amended with poultry litter and yard waste had significantly higher bermudagrass invasion and reached 100% coverage more quickly than other treatments. Some of the poultry litter beds reached 100% coverage within 40 days of planting. The control planting had significantly lower coverage than all compost treatments throughout the study.

scholarly journals Rooting of Mini-Cuttings of guava cultivars (Psidium guajava L.) Treated with IBA under Misting Irrigation

Akta Agrosia ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 27-32
Author(s):  
Supanjani Supanjani ◽  
Hatari Rahayu ◽  
Eko Suprijono ◽  
Atra Romeida ◽  
Yulian Yulian
Keyword(s):  
Herbal Medicine ◽  
Vitamin C ◽  
Block Design ◽  
Psidium Guajava ◽  
Fruit Production ◽  
Leaf Fall ◽  
Root Number ◽  
Rooted Cuttings ◽  
Randomized Complete Block Design ◽  
Leaf Shedding

       Guava (Psidium guajava L.) is a plant whose fruit is very popular in Indonesia because it contains high vitamin C and its leaves can be used as herbal medicine. Orchard expansion of selected cultivars and fruit production of guava can be achieved vegetatively through  propagation by using mini-cuttings with the use of Indole Butyric Acids (IBA). A study was conducted to compare rooting success of mini-cuttings of herbaceous stem of four guava cultivars with IBA treatment. Four guava cultivars tested were Bengkulu Round, Getas, Crystal, and Bangkok.  Mini-cuttings were immersed in IBA solution at 0 ppm or 1000 ppm. Cultivar and IBA treatments were arranged factorially in a randomized complete  block design with  3 replications, each consisting of 25 cuttings. Variables observed included percentage of original-leaf shedding, percentage of emerging shoots, percentage of sprouting cuttings, new leaf number, root number, root length, and percent of rooted cuttings. The results demonstrated that cultivars affected rooting percentage, sprouted percentage, percentage of original-leaf fall, and number of root.  Getas had highest rooting and sprouting percentages, and showed lowest number of  original-leaf shedding; whereas, Bangkok demostrated greatest number of root.  IBA treatment increased the number of root and the number of original-leaf shedding, but reducing rooting percentage of mini-cutting. There was no interaction between cultivar and IBA teratment.

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