EFFECTS OF N AND K APPLICATIONS ON THE LEAF COMPOSITION, YIELD, AND FRUIT QUALITY OF BEARING MCFARLIN CRANBERRDZS

1976 ◽  
Vol 56 (1) ◽  
pp. 107-110 ◽  
Author(s):  
G. W. EATON ◽  
C. N. MEEHAN
Keyword(s):  
Mineral Composition ◽  
Fruit Quality ◽  
Fertilizer Application ◽  
Zn Content ◽  
K Fertilizer ◽  
Leaf Composition

The effects of N and K fertilizer applications on yield, leaf mineral composition and fruit quality were studied at four locations in commercial cranberry plantings in experiments of 3 yr duration. Nitrogen applications at all locations increased leaf K content in the 1st and 3rd yr and decreased leaf Zn content at one location in the 2nd yr. Potassium applications increased leaf K content in all 3 yr of the experiment and decreased leaf Mg in the 2nd and 3rd yr. A significant location × N × K interaction influenced leaf K composition in the 3rd yr. Yield and fruit quality variables depended upon location but did not respond significantly to fertilizer application.

scholarly journals 1-Methylcyclopropene on Fruit Quality of Se-Enriched Grape (Vitis vinifera L.) during Shelf Life Period

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1411 ◽  
Author(s):  
Shuaimeng Zhu ◽  
Yinli Liang ◽  
Lan Mu ◽  
Xiaojuan An ◽  
Hongfei Yin
Keyword(s):  
Shelf Life ◽  
Fruit Quality ◽  
Soluble Sugars ◽  
Fertilizer Application ◽  
Table Grape ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Life Stages ◽  
Grape Berries

Selenium (Se) deficiency in humans could be improved by biofortification of food with selenium, 1-Methylcyclopropene (1-MCP) treatment is beneficial for the non-sulfur storage of fresh fruit. This study investigated fruit quality of table grape (Hutai No.8) with foliar Se fertilizer at maturity, and fruit quality changes of table grape during shelf life stages that caused by postharvest 1-MCP treatment in 2016 and 2017. The results showed that foliar Se fertilizer application significantly increased Se content in grape berries at maturity, and the raised rate were 43.09% and 33.24% compared to that of control in 2016 and 2017 respectively, meanwhile it increased the nutritional components in grape berries, including soluble proteins, soluble sugars, Vitamin C, total soluble solids, proanthocyanidin content and so on, and decreased the titratable acidity content. During shelf life stages, 1-MCP application decreased the decay number of grapes, and SE + 1-MCP treatment had the most excellent fruit quality among all treatments in two consecutive vintages. In conclusion, Se fertilizer application could increase Se content in grape berries, also improved the fruit nutritional and health care values at maturity. 1-MCP application could delay the process of ripening and senescence for Se-enriched grape and maintaining the postharvest quality of table grape during shelf life stages, it allows us to market the fruit at a more advanced ripening stage without quality loss.

PERTUMBUHAN DAN HASIL BLEWAH (Cucumis melo var. cantalupensis L.) PADA TINGKAT PENJARANGAN BUAH DAN DOSIS PUPUK NPK BERBEDA

2021 ◽  
Vol 23 (2) ◽  
pp. 72-77
Author(s):  
Lusiana Septiriyani ◽  
Mohammad Chozin ◽  
Yulian Yulian
Keyword(s):  
Fruit Quality ◽  
Cucumis Melo ◽  
Block Design ◽  
Crop Productivity ◽  
Fertilizer Application ◽  
Fruit Thinning ◽  
Randomized Complete Block Design ◽  
Npk Fertilizer ◽  
Experimental Plots

[PRODUCTIVITY AND FRUIT QUALITY OF CANTALOUPE AT DIFFERENT RATES OF FRUIT THINNING AND NPK FERTILIZER APPLICATION]. Productivity and fruit quality of cantaloupe depend on the availability of nutrients and the number of fruits maintained. The aim of this study was to compare the productivity and fruit quality of cantaloupe at different rates of fruit thinning and NPK fertilizer application. The research was conducted in August-October 2020 on street Kapuas V, Lingkar Barat Village, Gading Cempaka District, Bengkulu city. A field experiment was arranged in a randomized complete block design (RCBD) with 3 replications for alloting two factorial treatments structure, namely rates of fruit thinning (no fruit thinning, thinned to one fruit /plant, thinned to two fruits/plant, and thinned to three fruits/plant) and rates of NPK fertilizer application (400, 600, and 800 kg/ha) on rhe experimental plots. The results showed that fruit thinnings resulted no increament in crop productivity, but the fruit quality was improved as fewer number of fruits were retained on each plant. The NPK fertilizer at 400, 600, and 800 kg/ha were not able to increase the productivity of cantaloupe  and the quality of the  produced fruit when  the application were made only at planting and 23 days after planting. 

scholarly journals Nutrient Uptake and Fruit Quality of Pummelo as Influenced by Ammonium, Potassium, Magnesium, Zinc Application

2015 ◽  
Vol 8 (1) ◽  
pp. 100
Author(s):  
Hien Huu Nguyen ◽  
Somsak Maneepong ◽  
Potjamarn Suranilpong
Keyword(s):  
Nutrient Uptake ◽  
Fruit Quality ◽  
Low Concentrations ◽  
Exchangeable Ca ◽  
High K ◽  
Southern Thailand ◽  
K Fertilizer ◽  
Citrus Maxima ◽  
Calcium Magnesium

<p>Pummelo-growing soils in southern Thailand are usually low concentrations of potassium, calcium, magnesium and zinc; therefore, the roles of these elements are essential and their effects on nutrient uptake and fruit quality that should be considered in this area in current and future pummelo orchard. The study was carried out during 2013 to 2014 production year on a 17 year pummelo (<em>Citrus maxima</em> Merr.). The objective of the study was to examine the effects of ammonium (NH<sub>4</sub>), potassium (K), magnesium (Mg) and zinc (Zn) fertilization over the farmer practice on nutrient uptake and fruit quality. The experiment comprised of 5 treatments; apply all, not apply NH<sub>4</sub>, not apply K, not apply Mg and farmer practice. Application of fertilizer increased N, Ca and Mg concentrations in the leaves, but K and Zn concentrations in leaves decreased after application. However, their concentrations were in optimum ranges. High K/Ca, K/Mg mole ratios and low exchangeable Mg in soil positively affected on K uptake. Low Ca/Mg mole ratio and low exchangeable Ca in soil negatively affected on Ca uptake. The TSS and TSS/TA tended to decline when the treatments were not applied K-fertilizer. The fruit qualities were greater in the treatments with K/Ca, K/Mg and Ca/Mg mole ratios in soil were 0.23 to 0.27, 0.63 to 0.71 and 2.35 to 3.08, respectively. This study showed that K and Zn still required for pummelo growing in this soil.</p>

scholarly journals Potassium requirements and effects of K fertilizer application on yield and quality of bananas in Guangxi, China

Tropics ◽  
2006 ◽  
Vol 15 (1) ◽  
pp. 115-120
Author(s):  
Hongwei TAN ◽  
Liuqiang ZHOU ◽  
Rulin XAIE ◽  
Meifu HUANG
Keyword(s):  
Fertilizer Application ◽  
Yield And Quality ◽  
K Fertilizer

scholarly journals (331) In Brazil, Preharvest Calcium Sprays Were Not Always Needed to Improve Fruit Quality of `Gala' Apples

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1066B-1066
Author(s):  
Paulo Roberto Ernani ◽  
Jaques Dias ◽  
Cassandro Vidal Amarante ◽  
Diorvania Ribieiro
Keyword(s):  
Fruit Quality ◽  
Cultural Practices ◽  
Weather Conditions ◽  
Soluble Solids ◽  
Average Weight ◽  
Physiological Disorder ◽  
And Storage ◽  
Leaf Composition ◽  
Pattern Index

Calcium sprays have improved quality and storage life of apples throughout the world as a result of Ca prevention of many fruit physiological disorders. The efficacy of Ca sprays, however, varies according to soil, cultivar/rootstock, orchard cultural practices, and weather conditions. This study was carried out from 1998 to 2004 in southern Brazil in order to assess the effect of Ca sprays on quality of `Gala' fruits in an orchard planted in 1988 on a density of 1234 trees/ha. Treatments consisted of 0, 4, 8, and 12 sprays of 0.5% CaCl2. Fruits of same size and maturity level were annually analyzed at harvest and after 5 months of cold storage. In five out of six seasons, fruits from all treatments were free of any physiological disorder, and Ca sprays had no effect on leaf composition and on fruit quality attributes (soluble solids, acidity, starch pattern index, flesh firmness, and concentrations of N, K, Ca, and Mg). In the 2000–01 season, however, when yield was 18 t·ha-1 and fruits had an average weight of 175 g, the incidence of bitter pit plus lenticel blotch pit on stored fruits decreased from 24% in the treatment with no calcium to 2% in that with 12 calcium sprays. Two seasons later, yield was also light (25 t·ha-1) and fruits were big in size (168 g), but they did not show any disorders regardless of Ca sprays. It seems that the incidence of Ca related disorders in `Gala' apples grown on limed soils in Brazil only occurs in seasons with a light crop load as a result of large fruits and a high leaf/fruit ratio, associated with some unknown climatic factor.

Culture and fruit quality of rambutan (Nephelium lappaceumL.) in the Soconusco region, Chiapas, Mexico

Fruits ◽  
2004 ◽  
Vol 59 (5) ◽  
pp. 339-350 ◽  
Author(s):  
Eva Johanna Maria Vanderlinden ◽  
H. Alfred Juergen Pohlan ◽  
Marc J.J. Janssens
Keyword(s):  
Fruit Quality
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