Effect of Molybdenum on Cauliflower (Brassica oleracea L. Var Botrytis) in Sand Nutrient Culture

1976 ◽  
Vol 12 (2) ◽  
pp. 195-199
Author(s):  
K. P. Singh ◽  
C. B. S. Rajput
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Response Curve ◽  
Reducing Sugars ◽  
Dry Weight ◽  
Stem Length ◽  
Fresh Weight ◽  
Nutrient Culture ◽  
Quadratic Response ◽  
Brassica Oleracea L

SUMMARYOne ppm molybdenum produced the greatest height, fresh and dry weight per plant; number, fresh and dry weight of leaves; diameter, length, fresh and dry weight of stem; length, fresh and dry weight of roots; yield and yield-attributing characters (height, diameter, fresh and dry weight of curd), and N content of component parts of cauliflower plants (curd, leaf, stem and root). The lowest values for these characters were obtained in the control (nil Mo). Reducing and non-reducing sugars and vitamin C (ascorbic acid) were favourably enhanced (0·5 ppm Mo). The lowest values for sugars and ascorbic acid were observed under 1·0 ppm and nil Mo respectively. The quadratic response curve was drawn in terms of fresh weight of curd and rates of molybdenum application.

COMPARISON OF ASCORBIC ACID CONTENT IN IMPORTED TOMATOES AND IN CULTIVARS GROWN IN NOVA SCOTIA

1987 ◽  
Vol 67 (1) ◽  
pp. 331-335
Author(s):  
HAK-YOON JU ◽  
W. JOHN MULLIN
Keyword(s):  
Ascorbic Acid ◽  
Nova Scotia ◽  
Vitamin C ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Fresh Weight ◽  
Atlantic Region ◽  
Significant Difference ◽  
Cluster Location ◽  
Greenhouse Tomatoes

The ascorbic acid (vitamin C) content of fresh imported field tomatoes and Nova Scotia greenhouse and field tomatoes was determined on a bi-weekly basis during the period of availability of each type of tomato to the Nova Scotia consumer in 1984. The average ascorbic acid contents of imported and Nova Scotia field and greenhouse tomatoes were 13.3, 16.7 and 17.7 mg 100 g−1 fresh weight, respectively. A study of nine recommended or promising field tomatoes for the Atlantic region showed significant differences in ascorbic acid content among the cultivars. The cultivar Quick Pick had the highest ascorbic acid content of 22.5 ± 1.5 mg 100 g−1, the cultivar Campbell 18 had the lowest content, 12.0 ± 2.9 mg 100 g−1. In Dombito greenhouse tomatoes the stage of maturity and the effect of cluster location were tested against ascorbic acid content. The lowest ascorbic acid content of 9.1 ± 1.0 mg 100 g−1 was found with the small green tomatoes while others from mature green to overripe contained 14.0–16.7 mg 100 g−1. Tomatoes from different cluster locations showed no significant difference in ascorbic acid content.Key words: Vitamin C, L-ascorbic acid, tomatoes

INFLUENCE OF FOLIAR APPLICATION OF NOVATEK SOLUB K-MAX FERTILIZER ON THE BIOCHEMICAL COMPOSITION AND COMMERCIAL AND CONSUMER QUALITIES OF APPLE FRUITS

2021 ◽  
Vol 64 ◽  
pp. 54-60
Author(s):  
D. R.  Useynov ◽  
E. F. Chelebiev ◽  
О. A. Denisova
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Biochemical Composition ◽  
Foliar Application ◽  
Mineral Fertilizer ◽  
Dry Weight ◽  
Water Soluble ◽  
Apple Fruits

The article presents data on the study of the effect of foliar water-soluble mineral fertilizer NOVATEK Solub K-Max 10-5-30 on the biochemical composition and commercial quality of apple fruits. A rise in vitamin C from the introduction of NOVATEK at a rate of 2.5 kg/ha indicates the effectiveness of this drug for optimizing the content of ascorbic acid in fruits. An increase in the content of monosaccharides and a decrease in disaccharides were found for all the studied rates of consumption of agrochemicals. The use of mineral fertilizer “Novatek Solub K-Max” contributed to increase the dry weight of fruits. The application of this mineral fertilizer is recommended for inclusion in the industry regulations for Apple cultivation as one of the elements of the technology. 

scholarly journals Physiology of Pea Fruits I. the Developing Fruit

1955 ◽  
Vol 8 (2) ◽  
pp. 137 ◽  
Author(s):  
HS Mckee ◽  
RN Robertson ◽  
JB Lee
Keyword(s):  
Ascorbic Acid ◽  
Cell Volume ◽  
Starch Content ◽  
Dry Weight ◽  
Metabolic Changes ◽  
Soluble Carbohydrate ◽  
Soluble Nitrogen ◽  
Fresh Weight ◽  
Protein Nitrogen ◽  
Respiration Rates

Pea fruits from two crops were sampled at different times from flowering. Changes in the fresh weight, dry weight, starch, soluble carbohydrate, protein nitrogen, and soluble nitrogen in both seeds and hulls were followed in two seasons and related Jo the changes in cell volume in the seeds. In one season respiration rates and phosphate, pectin, and ascorbic acid contents were also investigated. The seeds gained more carbohydrate and nitrogen than was lost by the hulls. Starch and protein were synthesized rapidly by the seeds. The increase in starch content in the seeds was followed by a decrease in soluble carbohydrate content, after which the seed ceased to accumulate water. These metabolic changes are discussed in the light of recent biochemical knowledge, and in relation to more detailed biochemical investigations in progress.

scholarly journals Effect of ascorbic and salicylic acids on growth and flowering of Gazania cv. Frosty Kiss Mixed

2020 ◽  
Vol 26 (4) ◽  
pp. 537-544
Author(s):  
Abdul Kareem A.J. Mohammad Saeed
Keyword(s):  
Ascorbic Acid ◽  
Leaf Area ◽  
Growth Traits ◽  
Foliar Spray ◽  
Dry Weight ◽  
Fresh Weight ◽  
Flowering Duration ◽  
Flowering Date ◽  
Flower Diameter ◽  
Number Of Leaves

Abstract An experiment was conducted during the season 2018-2019 in the lath house to study the effect of foliar spray with Ascorbic Acid (AsA) and Salicylic Acid (SA) on vegetative and flowering growth traits of Gazania (Gazania rigens L.) cv. Frosty Kiss Mixed. The experiment was designed as a factorial experiment (3×3) in Randomized Complete Blocks Design (RCBD) with three replicates. Plants were sprayed with concentrations of 0, 100, and 200 mg L-1 of AsA, and 0, 150 and 300 mg L-1 of SA. Foliar spray with 200 mg L-1 of AsA was superior on increasing number of leaves (40.00), number of suckers (9.22), leaf area (2174.09 cm2), leaves dry weight (6.36 g), number of flowers (5.64), early of flowering date (97.22 days), flower fresh and dry weight (4.78 g) (0.51 g) respectively, while spray with a concentration of 100 mg L-1 led to increase flower diameter (6.37 cm) and flowering duration (10.85 days). Foliar spray with SA improved all vegetative and flowering traits. Treatment of 300 mg L-1 was the most significant effect in increasing number of leaves (39.56), leaf area (2182.06 cm2), leaves fresh weight (43.93 g), number of flowers (5.83), flower diameter (6.31 cm), early of flowering date (98.07 days), and flower dry weight (0.50 g). The interaction effect between the studied factors was significant in all studied traits. Treatment of AsA200×SA150 was the most effective and gave the best results in terms of number of suckers (9.11), dry weight of leaves (6.49 g), number of flowers (5.87), flower diameter (6.44 cm), flowering date (96.98 days), flowering duration (10.89 days).

scholarly journals Postproduction Carbohydrate Levels in Pot Chrysanthemums

1991 ◽  
Vol 116 (6) ◽  
pp. 1013-1018 ◽  
Author(s):  
Susan E. Trusty ◽  
William B. Miller
Keyword(s):  
Reducing Sugars ◽  
Sucrose Concentration ◽  
Dry Weight ◽  
Soluble Carbohydrates ◽  
Fresh Weight ◽  
Plant Parts ◽  
Color Changes ◽  
Carbohydrate Levels ◽  
Reserve Carbohydrate

Postproduction changes in carbohydrate types and quantities in the leaves, stems, and inflorescences of pot chyrsanthemums [Dendranthema × gramfiflorum (Ramat.) Kitamura `Favor'] placed in interior conditions were investigated. Fructans, sucrose, glucose, and fructose were present in all plant parts. In inflorescences and leaves, an additional unidentified substance was present. All plant parts decreased in dry weight during the postproduction evaluation. This decrease was accompanied by overall reductions in total soluble carbohydrates (TSC) and starch. The appearance of leaves and stems was acceptable throughout the experiment. Leaves lost significant amounts of TSC during the first 4 days postproduction (DPP), due primarily to a 76% decrease in sucrose concentration. After 4 DPP, leaf and stem TSC remained relatively unchanged. In inflorescences, petal expansion continued through 12 DPP. Visible signs of senescence, including loss of turgor, color changes, and inrolling of petal edges were observed at 20 DPP, and by 28 DPP, the plants were determined unacceptable for consumer use. Inflorescences increased in fresh weight, but not dry weight, during petal expansion, then each decreased. Inflorescence TSC fell from 146 mg.g-1 dry weight at O DPP to 11 mg.g-1 at 28 DPP. Reducing sugars accounted for 84% of the inflorescence TSC at 4 DPP, dropping to 48% at 28 DPP. Fructan concentration decreased through 16 DPP and then remained unchanged, while starch levels rose from 25 to 34 mg·g -1 dry weight through 12 DPP, then decreased. Fractans decreased in polymerization during petal expansion. This result suggests an alternate use of fructans and starch as pools of available reserve carbohydrate during petal expansion in chrysanthemum.

scholarly journals 650 Effects of Drought and Mechanical Brushing on Height of Tomato and Impatiens

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 510A-510
Author(s):  
Kiffnie M. Holt ◽  
Paul H. Jennings
Keyword(s):  
Leaf Area ◽  
Growth Habit ◽  
Dry Weight ◽  
Stem Length ◽  
Fresh Weight ◽  
Total Leaf Area ◽  
Stress Symptoms ◽  
Treatment Data ◽  
Effects Of Drought ◽  
Sun And Shade

Seeds of tomato `Big Beef Hybrid' and impatiens `Sun and Shade White' were sown in 200-cell plug trays and put under cyclic mist to germinate. After 3 weeks, the most uniform seedlings were transplanted to 24-cell flat inserts where they remained for the duration of the experiment. At 5 weeks, plants were arranged for the study with three flats per treatment. The mechanical group was brushed 50 times at 7:00 a.m., 1:00 p.m., and 7:00 p.m. The brushing mechanism was adjusted as needed to account for growth and stimulate only the top 1 to 2 inches of the plants. Water was withheld from the drought plants until water stress symptoms developed. Treatments continued for three weeks. At the termination of treatment, data was only recorded on the eight plants in the middle of each flat to reduce edge effects. Data collected included height, total stem length, total leaf area, and fresh and dry weight of both roots and shoots. Two more replications of the experiment were performed over the next 3 months. As expected, the treated plants were shorter than the controls and had a more compact and sturdy growth habit in all replications. Effects on leaf area, fresh weight, and dry weight were noted and will be discussed.

scholarly journals PENGARUH KOMBINASI PUPUK ORGANIK DAN PUPUK HAYATI TERHADAP PERTUMBUHAN, PRODUKSI DAN MUTU PEGAGAN

2021 ◽  
Vol 32 (1) ◽  
pp. 23
Author(s):  
Rahma Widyastuti ◽  
Nurul Husniyati Listyana ◽  
Erri Setyo Hartanto
Keyword(s):  
Dry Weight ◽  
Growth And Yield ◽  
Stem Length ◽  
Fresh Weight ◽  
Chemical Fertilizers ◽  
Cultivation Method ◽  
Organic Cultivation ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design

<em>Gotu kola is one of the medicinal plants that has begun to be cultivated by the Indonesian people. It’s cultivation needs to follow the GAP to produce the qualified yield, including the use of fertilizers. Biofertilizers have been widely developed to reduce adverse effects of chemical fertilizers to the environment, thus an organic cultivation method can be an alternative. The aim of this study was to determine the effect of biofertilizer on growth and yield of gotu kola. This research was an experimental study with a completely randomized design (CRD) using 8</em> <em>planting media treatments consisting of (a) Soil + manure + dolomite; (b) Soil manure + 1 g biofertilizer; (c) Soil + dolomite + 1g biofertilizer; (d) Soil + manure + 3 biofertilizer; (e) Soil + dolomite + 3 biofertilizer; (f) Soil + manure + 5 g biofertilizer; (g)  Soil + dolomite + 5 g  biofertilizer;  and  (h)  Soil +  3 g</em> <em>biofertilizer. Parameters observed were leaf area, stem length, number of leaves, number of tillers, fresh weight, dry weight and asiaticoside content. The results showed that combination treatment of biofertilizer (1 g) with dolomite (30 g) gives better effect in increasing the number of tillers and number of leaves, while the combination of biofertilizer (5 g) and dolomite (30 g) is the best for asiaticoside levels in gotu cola.</em>

scholarly journals Provitamin A and Vitamin C Contents of Several Varieties of Mango (Mangifera indica L.) Grown in Puerto Rico

1969 ◽  
Vol 53 (2) ◽  
pp. 100-105
Author(s):  
L. M. Iguina de George ◽  
A. L. Collazo de Rivera ◽  
J. R. Benero ◽  
W. Pennock
Keyword(s):  
Ascorbic Acid ◽  
Puerto Rico ◽  
Vitamin C ◽  
Reducing Sugars ◽  
Mangifera Indica ◽  
Soluble Solids ◽  
Provitamin A ◽  
Pulp Yield ◽  
Visual Evaluation ◽  
Titrable Acidity

The chemical composition of 30 mango varieties from the Fortuna Substation in the Southern Region of Puerto Rico was studied. The proportion of peel, pulp, and seed, as well as the moisture content, total and soluble solids, ascorbic acid, total and reducing sugars, pH, total titrable acidity, and ß-carotene were determined for each variety. Of these varieties, the Edward gave the highest pulp yield; and the Julie and the Francisque had the highest vitamin C values, providing the MDR with 200 g. of pulp. The Carrie, Palmer, Paheri, Adams, Zill, Edward, and Sensation surpassed the MDR of 5,000 I.U. for vitamin A, with the Carrie showing the highest with 7,9001. U. per 100 g. of pulp. Six of these varieties were again analyzed the following year. The resulting differences between the same varieties in the 2 years that they were analyzed could be attributed to an error in the visual evaluation of the degree of ripeness of the fruit at harvesttime.

scholarly journals BIO-HERBICIDAL EFFICIENCY OF WITHANIA SOMNIFERA AGAINST IMPORTANT HIMALAYAN WEEDS

2017 ◽  
Vol 9 (3) ◽  
pp. 88
Author(s):  
Mamta Sharma ◽  
Rupinder Kaur ◽  
Sunil Puri
Keyword(s):  
Weed Management ◽  
Root Length ◽  
Withania Somnifera ◽  
Growth Parameters ◽  
Chenopodium Album ◽  
Foliar Spray ◽  
Dry Weight ◽  
Stem Length ◽  
Fresh Weight ◽  
Germination And Growth

Objective: The aim of the study was to evaluate the bioherbicidal activity of Withania somnifera against germination and growth of noxious weeds of Himalaya i.e. Ageratum coenyzoides, Chenopodium album and Achyranthus aspera in a laboratory and foliar spray bioassay which will act as a tool of weed management in the Himalayan region.Methods: Root, stem and leaf aqueous extract of Withania somnifera at 100% concentration were applied to determine their effect on the seed germination and seedling growth of tested weeds under laboratory condition. Foliar spray bioassay was carried out by spraying extracts of Withania somnifera on three-month-old seedlings of weeds for two months. Germination and growth of weeds were assessed using growth parameters into account i.e. germination percentage, stem length, root length, fresh weight, dry weight, no of shoot branches and no of root branches.Results: The results revealed that all the aqueous extracts markedly suppressed germination and seedling growth of A. coenyzoides, C. album and A. aspera. Withania extracts remarkably effected germination, the growth of Ageratum coenyzoides in comparison to other studied weeds. The leaf extract of Withania was more pronounced than stem and root extracts in germination assay. Infoliarspray bioassay, aqueous leaf extracts of 100% w/v concentrations were sprayed on three month old seedlings of weeds at an interval of 5 d. All the aqueous extracts significantly suppressed shoot length, root length, fresh weight and dry weight of Ageratum coenyzoides, Chenopodium album and Achyranthus aspera seedling. In foliar spray bioassay, leaf extract suppressed the stem length, root length, fresh weight, dry weight, no. of root branches and no of shoot branches of studied weeds more commendably than stem and root extract. The suppression of growth parameters could be attributed to the presence of phytochemicals present in the extracts of Withaniasomnifera.Conclusion: The present study concludes that Withania somnifera contain bio-herbicidal compounds in leaf, stem and root as plant extracts adversely affect weed growth of studied weeds. Henceforth the strategy bio-control of weed is a safe and effective method which could prove a milestone in weed management in Mid-Himalaya.

Physicochemical and nutritional evaluation of Spanish melon landraces

2015 ◽  
Vol 15 (2) ◽  
pp. 177-186 ◽  
Author(s):  
Sandra Escribano ◽  
Almudena Lázaro
Keyword(s):  
Ascorbic Acid ◽  
Genetic Material ◽  
Dry Weight ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Fresh Weight ◽  
Repetition Effects ◽  
Nutrient Contents ◽  
Solids Content ◽  
The 19Th Century

The study of unknown and therefore unexploited genetic material from landraces and wild relatives could be essential to help modern plant breeders to respond to ongoing requirements and new challenges in food production. The present study evaluates the most relevant physicochemical values and nutrient contents of a genetically unique array of traditional melon varieties, cultivated in Spain at least since the 19th century, and compares them with modern melon hybrids available on the market. This research is complemented with an assessment of variety, environment and repetition effects on each trait to determine their stability. Spanish melon landraces displayed extraordinary diversity with respect to juiciness (70.59–95.97 g/100 g water fresh weight), firmness (20.75–149.89 N), soluble solids content (9.57–16.53 °Brix), pH (5.04–6.38), total sugars (360.21–877.36 mg/g dry weight), carotenoids (0.01–2.05 μg/g fresh weight) and ascorbic acid values (7.55–44.33 mg/100 g fresh weight). A subset of these landraces, belonging to Piel de Sapo and Rochet market classes, revealed remarkably superior values of ascorbic acid in comparison with all commercial varieties, doubling ascorbic acid values with respect to their corresponding market class. Furthermore, most of these landraces exhibited high acidity and accumulated high levels of sugars, fulfilling those sensory and physicochemical characteristics that researchers and breeders have spent many years seeking. The possibilities of these landraces to be used in improvement projects are innumerable; they should be surely taken into account in the near future.

Sign in / Sign up

Export Citation Format

Share Document