scholarly journals Quality Responses of Table Grapes ‘Flame Seedless’ as Effected by Foliarly Applied Micronutrients

Horticulturae ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 462
Author(s):  
Irfan Ali ◽  
Xiukang Wang ◽  
Wazir Mohsin Abbas ◽  
Mahmood Ul Hassan ◽  
Muhammad Shafique ◽  
...  
Keyword(s):  
Developmental Stages ◽  
Foliar Application ◽  
Ascorbic Acid Content ◽  
Bunch Length ◽  
Total Sugars ◽  
Growing Seasons ◽  
Table Grapes ◽  
Grape Quality ◽  
Weight Yield ◽  
Chlorophyll A And B

Micronutrient (iron, zinc and boron) deficiencies are a basic and prominent factor affecting grape quality and yield in the Pothwar region. To overcome these deficiencies, different levels of micronutrients were applied foliarly on grapevines at five different berry developmental stages during two consecutive growing seasons (2018 and 2019). The data suggested that foliar treatment of micronutrients significantly increased the yield, number of bunches per vine, bunch weight, yield per vines, bunch length, berry number per cluster, berry diameter, berry weight and cluster compactness. The biochemical quality attributes of berries, including sugars (reducing, non-reducing as well as total sugars), ascorbic acid content, pH and TSS values, were at their highest levels in grapevines supplemented with Fe, Zn and B treatment at 200 ppm, respectively, i.e., the highest concentrations used. Biochemical leaf values, including chlorophyll a and b and leaf micronutrient content (Fe, Zn and B), were also highest in grapevines that were sprayed with Fe, Zn and B at 200 ppm. Overall, the results revealed that the performance of grapevine cv. ‘Flame Seedless’ growing in agroclimatic conditions of the Pothwar region was improved as a result of the foliar application of Fe, Zn and B at 200 ppm. The results also suggested that a further increase in the concentration of each nutrient might be helpful to obtain berries of improved quantity and quality.

scholarly journals FOLIAR APPLICATIONS OF ZINC, IRON AND MANGANESE INFLUENCE THE PLANT GROWTH AND FRUIT QUALITY OF PAPAYA CV. RED LADY

2020 ◽  
Vol 8 (5) ◽  
pp. 551-557
Author(s):  
Gurjot Singh Pelia ◽  
◽  
A K Baswal ◽  
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Foliar Application ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Carotenoids ◽  
Heavy Soil

Prevalence of heavy soil is a major problem for fruit cultivation under Punjab conditions consequently leading to deficiency of several micro-nutrients including zinc (Zn), iron (Fe), and manganese (Mn) which adversely affects the growth and productivity. In this view, a study was planned to investigate the effect of foliar applications of zinc sulphate (ZnSO4), iron sulphate (FeSO4), and manganese sulphate (MnSO4) on vegetative growth, reproductive growth and fruit quality of papaya cv. Red lady. Plants sprayed with ZnSO4 (0.4 %) exhibited significantly highest plant height, plant girth, number of leaves, petiole length; initiated an earliest flowering and fruiting; and improved fruit quality viz., fruit weight, fruit length, titratable acidity, soluble solids concentrations, ascorbic acid content, total phenols content, and total carotenoids content as compared with the control and all other treatments. In conclusion, foliar application ZnSO4 (0.4 %) significantly improved plant growth and fruit quality in papaya cv. Red lady.

scholarly journals Перспективы применения гуминового комплекса на виноградниках Крыма

2019 ◽  
pp. 122-127
Author(s):  
Magometsaigit Beibulatov ◽  
Nadezhda Tikhomirova ◽  
Natalia Urdenko ◽  
Roman Buival ◽  
Yana Radionovskaya
Keyword(s):  
Positive Impact ◽  
Cabernet Sauvignon ◽  
Wine Grapes ◽  
Total Sugars ◽  
Table Grapes ◽  
New Generation ◽  
The Impact ◽  
Positive Effect ◽  
Average Cluster

В статье представлены результаты двухлетних исследований по изучению влияния внекорневых подкормок гуминовым препаратом нового поколения GSN-2004 HUMILIFEтм (ОСН-2004) на урожай и качество винограда столового сорта Мускат янтарный и технического сорта Каберне-Совиньон в условиях Южного берега Крыма. По результатам исследований 2017-2018 гг. установлено, что внекорневые подкормки изучаемым препаратом разработанной нормой 4 л/га, способствуют увеличению урожайности винограда сорта Мускат янтарный в среднем на 23,9%, при этом повышение урожайности составляет 2,7 т/га. Урожайность винограда сорта Каберне-Совиньон увеличивается на 26,5%, при этом повышение урожайности составляет 2,2 т/га. Подтверждено положительное влияние внекорневых подкормок на показатели качества винограда сорта Мускат янтарный, которое выразилось в увеличении средней массы грозди у изучаемого сорта на 40,3%, увеличении массовой концентрации сахаров в соке ягод на 5,4% и увеличении значений глюкоацидометрического показателя (ГАП) на 15,6%. Положительное влияние внекорневых подкормок на показатели качества винограда сорта Каберне-Совиньон выразилось в увеличении средней массы грозди на 23,0% и увеличении массовой концентрации сахаров в соке ягод на 7,1%.The paper summarizes findings of a two-year study on the impact of foliar fertilizing with a new generation humic preparation GSN-2004 HUMILIFEтм (ОСН-2004) on the harvest and quality of ‘Muscat Yantarniy’ table grapes and ‘Cabernet Sauvignon’ wine grapes in the conditions of the southern coast of Crimea. The data of the 2017-2018 study established that foliar dressing with the preparation under study in the ratio of 4 l/ha increases the harvest of ‘Muscat Yantarniy’ grapes on average by 23.9%, or by 2 t/ha. The yield of ‘Cabernet Sauvignon’ grapes was increased by 26.5%, thus increasing the harvest by 2.2 t/ha. The positive impact of foliar dressing on quality indicators of ‘Muscat Yantarniy’ grapes was confirmed. Thus, the average cluster weight increased by 40.3%, total sugars in the berry juice increased by 5.4 %, and gluco-acidometric index increased by 158.06 %. The study confirmed the positive effect of foliar dressing on quality characteristics of ‘Cabernet Sauvignon’ grapes, as demonstrated by a 23% increase in the average cluster weight and a 7.1 % increase in the total sugars in the berry juice.

scholarly journals Productive and qualitative performance of tomato plants as a function of the application of plant growth regulators and mineral nutrients

2018 ◽  
Vol 12 (2) ◽  
pp. 416-424
Author(s):  
Marília Caixeta Sousa ◽  
Luan Fernando Ormond Sobreira Rodrigues ◽  
Mônica Bartira da Silva ◽  
Janaina Oliveira Cruz ◽  
Marla Silvia Diamante ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Growth Regulators ◽  
Foliar Application ◽  
Tomato Fruit ◽  
Soluble Sugars ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Antioxidant Compounds ◽  
Macro And Micronutrients

The tomato fruit is rich in antioxidant compounds and has great nutritional and economic importance, annually promoting research on the nutritional and productive characteristics. The present study aimed to evaluate whether foliar application of commercial products based on growth regulators [auxin, cytokinin and gibberellin (Ax+CK+GA)], micronutrients [cobalt and molybdenum (Mi)] and mixtures of macro and micronutrients [nitrogen, boron, copper, molybdenum and zinc (Ma+Mi)], isolated and in combination, increase productivity and improve the post-harvest quality of tomato fruits (Predador F1). The experiment design used randomized blocks, with seven treatments and four repetitions, which were (T1) control; (T2) Ax+CK+GA; (T3) Ma+Mi; (T4) Mi; (T5) Ax+CK+GA + (Ma+Mi); (T6) Ax+CK+GA + Mi; and (T7) Ax+CK+GA + Mi + (Ma+Mi). The variables production, precocity, soluble solids content (SS), titratable acidity (TA), ratio (SS/TA), pH, total soluble sugars, ascorbic acid and weight loss were evaluated. The Ax+CK+GA application, isolated or in combination with Ma+Mi, promoted the precocity, and the use of isolated Ax+CK+GA and Mi improved the tomato plant productivity. The growth regulators, macro and micronutrients, isolated or in combination, increased the ascorbic acid content in the fruits.

scholarly journals Using Soil and Foliar Applications of some Fertilizers to Improve the Yield and Quality Parameters of Table Grapes (Vitis vinifera L.)

2020 ◽  
Vol 77 (1) ◽  
pp. 1
Author(s):  
Hisham ABO-AHMEDEH ◽  
Amer MHASNEH ◽  
Hamzeh RAWASHDEH
Keyword(s):  
Foliar Application ◽  
Fertilizer Application ◽  
Quality Parameters ◽  
Control Treatment ◽  
Vitis Vinifera L ◽  
Foliar Fertilizer ◽  
Soil Application ◽  
Application Method ◽  
Table Grapes ◽  
Yield And Quality

The objective of the current study was to investigate the effect of soil and foliar application of some fertilizers on the yield and quality of table grapes cv. Alkdarri. Soil and foliar fertilizer application treatments included a control, Ca 200 g/vine, K 150 g/vine, N 200 g/vine, Ca 30 g/L, grow more INC fertilizer 10 g/L, K 20 g/L, and Cu 5 mg/L. Results indicate that soil and foliar fertilizer application increases quality and quantity of table grapes compared to control treatment. The highest berry diameter, a weight of 100 berries and a size of 100 berries were obtained in vines treated with Ca 200 g/vine, using the soil application method. The highest cluster weight was obtained in vines that were treated with K 150 g/vine, using the soil application method. The highest berry firmness was obtained in vines that were treated with K 20 g/L using the foliar application method. The highest pH and TSS were obtained in vines treated with Cu 5 mg/L, using the foliar application method. The highest fruit yield was found in vines that were treated with 150 g K.

Some effects of gamma radiation on several varieties of Tasmanian potatoes. 2. Biochemical changes

1965 ◽  
Vol 5 (18) ◽  
pp. 289 ◽  
Author(s):  
PA Wills
Keyword(s):  
Ascorbic Acid ◽  
Gamma Radiation ◽  
Dry Matter ◽  
Reducing Sugars ◽  
Starch Content ◽  
Sugar Content ◽  
Dehydroascorbic Acid ◽  
Ascorbic Acid Content ◽  
Reducing Sugar ◽  
Total Sugars

Tasmanian Up-to-date, Kennebec, Sebago, and Sequoia tubers were treated with low doses of gamma radiation to inhibit sprouting and were subsequently stored at 68�F or 45�F. Tubers were examined at bi-monthly intervals for some, or all, of the following biochemical constituents : dry matter, thiamin, reduced ascorbic acid, dehydroascorbic acid, total ascorbic acid, soluble reducing sugars, sucrose, total sugars, and starch. Radiation, independent of dose level, led to lower dry matter contents in the Up-to-date, Kennebec, and Sequoia tubers after four months storage, and in the Sebago tubers after six months storage at 68�F, but not at 45�F, when compared to the controls. The thiamin content of Up-to-date tubers w-as not influenced by radiation (16,000 rads). Storage w-as a more important factor than radiation in altering the ascorbic acid content of tubers. Radiation maintained, or even increased the normal level. Radiation increased the soluble reducing sugar content of Sequoia tubers, the total sugar of Sequoia and Sebago tubers, and the sucrose content of the Sebago tubers, but had little effect on the starch content of these varieties. Storage influenced some of these constituents, particularly in the Sebago variety.

Sowing date affects yield components of canarygrass seed

2003 ◽  
Vol 83 (2) ◽  
pp. 357-362 ◽  
Author(s):  
J. L. Bodega ◽  
M. A. De Dios ◽  
M. M. Pereyra Iraola
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Dry Matter ◽  
Developmental Stages ◽  
Block Design ◽  
Sowing Date ◽  
Growing Seasons ◽  
Sowing Dates ◽  
Four Blocks ◽  
Number Of Seeds

Canarygrass (Phalaris canariensis L.) crops are sown from June to mid-September in the southeastern area of the province of Buenos Aires, Argentina. Sowing dates in this range result in different growing temperatures and photoperiods that affect the duration of developmental stages, biomass production, and seed yield and its components. For Argentina, there are no reported studies that address these effects. This study on the effects of sowing date was conducted during four growing seasons (1996–1999) at the Instituto Nacional de Tecnologí a Agropecuaria (INTA) Experimental Station at Balcarce, Argentina, using a population provided by Dr. Jaime Lloveras, University of Leyda, Spain. Different seeding dates were chosen from June to mid-September. The experiment was a randomized complete block design with four blocks. When the sowing date was delayed, total dry matter (DM) decreased. For early sowing dates seed yield was constant, but after 10 August it was reduced by 1.5% for each day of delay. Earlier sowing increased the duration of pre-anthesis development with greater uniformity in panicle size and the number of seeds. Seed yield was related lin early to the number of seeds and plant dry matter yield (DMY). The rate of progress from emergence to anthesis (1/days from emergence to anthesis) was proportional to the mean photoperiod. Under the environmental conditions in Balcarce, the accumulated required thermal units for anthesis was reduced when sowing was delayed from June to September. This reduction was related to the photoperiod and was estimated as –189.3 growing degree-days per hour of photoperiod increment. Key words: Canarygrass, seed yield, sowing date, yield components

scholarly journals Silicon Foliar Application Mitigates Salt Stress in Sweet Pepper Plants by Enhancing Water Status, Photosynthesis, Antioxidant Enzyme Activity and Fruit Yield

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 733 ◽  
Author(s):  
Khaled A. A. Abdelaal ◽  
Yasser S.A. Mazrou ◽  
Yaser M. Hafez
Keyword(s):  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Chlorophyll A ◽  
Electrolyte Leakage ◽  
Foliar Application ◽  
Water Status ◽  
Sweet Pepper ◽  
Fruit Yield ◽  
Chlorophyll A And B ◽  
Pepper Plants

Silicon is one of the most significant elements in plants under abiotic stress, so we investigated the role of silicon in alleviation of the detrimental effects of salinity at two concentrations (1500 and 3000 ppm sodium chloride) in sweet pepper plants in two seasons (2018 and 2019). Our results indicated that relative water content, concentrations of chlorophyll a and b, nitrogen, phosphorus and potassium contents, number of fruits plant−1, fruit fresh weight plant−1 (g) and fruit yield (ton hectare−1) significantly decreased in salt-stressed sweet pepper plants as compared to control plants. In addition, electrolyte leakage, proline, lipid peroxidation, superoxide (O2−) and hydrogen peroxide (H2O2) levels, soluble sugars, sucrose, and starch content as well as sodium content significantly increased under salinity conditions. Conversely, foliar application of silicon led to improvements in concentrations of chlorophyll a and b and mineral nutrients, water status, and fruit yield of sweet pepper plants. Furthermore, lipid peroxidation, electrolyte leakage, levels of superoxide, and hydrogen peroxide were decreased with silicon treatments.

scholarly journals Effect of Plant Biostimulants on Macronutrient Content in Early Crop Potato Tubers

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1202
Author(s):  
Tomasz Dziugieł ◽  
Wanda Wadas
Keyword(s):  
Untreated Control ◽  
Dry Matter ◽  
Foliar Application ◽  
Fulvic Acids ◽  
Potato Tubers ◽  
Macronutrient Content ◽  
Ionic Ratios ◽  
Early Crop ◽  
Growing Seasons ◽  
Mass Ratios

This paper analyzes the effects of the foliar application of the seaweed extracts Bio-algeen S90 (Ascophyllum nodosum) and Kelpak SL (Ecklonia maxima), as well as the humic and fulvic acids in HumiPlant (leonardite extract) on the macronutrient content in tubers of very early potato cultivars (‘Denar’, ‘Lord’, ‘Miłek’) and their ionic ratios. The field experiment was carried out in central-eastern Poland over three growing seasons, using Haplic Luvisol. The biostimulants were applied according to the manufacturers’ recommendations. Potatoes were harvested 75 days after planting. The use of biostimulants increased potassium (K) content in tubers, on average, by 1.26 g∙kg−1 of dry matter compared with the untreated control tubers. Bio-algeen S90 did not affect the phosphorus (P) content in tubers, whereas Kelpak SL and HumiPlant reduced the phosphorus content, on average, by 0.063 g∙kg−1 of dry matter. The biostimulants did not affect calcium (Ca), magnesium (Mg), or sodium (Na) content in tubers. The use of biostimulants resulted in an increase in the mass ratios of K+:Ca2+, K+:Mg2+, and (K+ + Na+):(Ca2+ + Mg2+) in early crop potato tubers, compared with the untreated control tubers, but did not affect the mass ratios of Na+:Ca2+ and Na+:Mg2+ or the mass ratio of Ca:P. The macronutrient content in early crop potato tubers and their ionic ratios depended on the cultivar and environment conditions.

Sign in / Sign up

Export Citation Format

Share Document