scholarly journals (318) Influence of Orchard Site Parameters and Fruit Distribution within Canopy on Fruit Quality of `Fuji' Apple

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1027E-1027
Author(s):  
Zlatko Cmelik ◽  
Stanislav Tojnko
Keyword(s):  
Fruit Quality ◽  
Sugar Content ◽  
Fruit Size ◽  
Growth Yield ◽  
Growth And Yield ◽  
Lower Percentage ◽  
Total Sugar Content ◽  
Titratable Acid ◽  
Fuji Apple

Canopies of `Fuji' apple trees, grafted on M.9 rootstock, planted in 1998 on two orchard sites at 2.8 × 0.7 m and trained as super spindles, were subdivided in Spring 2003 into upper and lower parts. In each part, the number of fruits, yield per tree, external (fruit size classes, and fruit coloring), and internal (total sugar content, titratable acid content, and flesh firmness) fruit quality attributes were determined. The orchard site parameters affected growth, yield, and fruit quality in different ways. The less suitable orchard site had less growth, lower yield per tree, and a lower percentage of first class fruits, but most fruits had good color (86% in top and 75% in lower part of canopy). The favorable orchard site produced higher growth and yield, and a higher percentage of first class fruits, but fruits had poorer color. In the lower part of the canopy, fruits were of a good size, but had poor color. Fruits of the best quality were obtained from the top part of the tree.

scholarly journals Study on the effect of DA-6 on the maturity and fruit quality of ‘Aikansui’ pear

2020 ◽  
Vol 165 ◽  
pp. 03061
Author(s):  
Huiyi Zhang ◽  
Huizhi Li ◽  
Huaer Wang ◽  
Changwen Duan ◽  
Haonan Zhang ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Sugar Content ◽  
Fruit Weight ◽  
Titratable Acid ◽  
Effect Of Treatment

The effect of DA-6 treatments with different concentrations on the maturity and fruit quality of ‘Aikansui’ pear was studied. The results showed that the effect of treatment at 35 mg •L-1 was the best, followed by 30 mg •L-1. The treatment of 35 mg •L-1 could increase the sugar content of the fruit, reduce the content of titratable acid, and advance the maturity of the fruit to the greatest extent. The 30 mg •L-1 treatment had the most significant effect on the increase of fruit weight and the Vc content.

INFLUENCES OF LATENT VIRUSES ON VIGOR, YIELD AND QUALITY OF BRITISH SOVEREIGN STRAWBERRIES

1962 ◽  
Vol 42 (4) ◽  
pp. 602-610 ◽  
Author(s):  
Jack A. Freeman ◽  
Frances C. Mellor
Keyword(s):  
Virus Infection ◽  
Fruit Quality ◽  
Sugar Content ◽  
Fruit Size ◽  
Reduce Sugar Content ◽  
Total Acid ◽  
Yield And Quality ◽  
Reduce Sugar ◽  
The Hill

Comparison of the effect of two strains of mottle virus, two strains of veinbanding virus, and latent-A virus, alone and in combination, on vigor, yield and quality of British Sovereign strawberry plants grown under two planting systems showed: 1. Vigor was reduced by infection by a single virus and still further reduced by two viruses; 2. Yield was reduced by virus infection, especially during the first fruiting year when plants were grown under the hill system; 3. Fruit size was reduced only by virus combinations; 4. Fruit quality was affected only by veinbanding, which increased the total acid content and tended to reduce sugar content.

scholarly journals Influences of girdling and potassium treatments on fruit quality and some physiological characters of ‘Fremont’ mandarin variety

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Tuğba Ülker ◽  
Müge Uysal Kamiloğlu
Keyword(s):  
Fruit Quality ◽  
Sugar Content ◽  
Chlorophyll Concentration ◽  
Fruit Size ◽  
Potassium Nitrate ◽  
Leaf Nitrogen ◽  
Fruit Yield ◽  
Leaf Nitrogen Content ◽  
Total Sugar Content ◽  
N Concentration

Abstract Growing citrus involves cultural treatments such as girdling and foliar potassium treatment to increase fruit size, yield and quality. The aim of the study was to evaluate the effects of single and double stem girdling, potassium nitrate (KNO3) treatment on leaves and combinations of these treatments on the fruit yield, size and quality characteristics, leaf chlorophyll concentration and leaf nitrogen content, leaf fluorescence (PSII) and leaf sugar content of the ‘Fremont’ mandarin variety. Girdling treatments were applied on the stem by removing 4 mm wide ring of bark at the end of anthesis and after the June fruit drop. Foliar KNO3 applications were applied at a concentration of 4% twice (90 days and 120 days after full anthesis) in the experiment. The single girdling (SG) and double girdling (DG) treatments on stems increased fruit yield (kg · tree−1) by approximately 40% relative to the control (C). Treatments did not significantly affect the internal fruit quality of the ‘Fremont’ mandarin variety except in fruit colour and appearance. The highest impact on fruit size was found in the DG + KNO3 treatment. According to treatments and periods, the SPAD values varied between 62.08 and 70.67, whereas the PSII values varied between 0.698 and 0.756. The treatments significantly increased the leaf nitrogen (N) concentration and the fructose, glucose and sucrose concentrations relative to the control. The highest N concentration content was detected in the foliar potassium treatment, and the highest total sugar content was detected in the SG treatment.

scholarly journals GROWTH, YIELD AND POSTHARVEST QUALITY OF WAX APPLE AS AFFECTED BY NAPHTHALENE ACETIC ACID APPLICATION

2015 ◽  
Vol 37 (2) ◽  
pp. 410-422
Author(s):  
MOHAMMAD MONERUZZAMAN KHANDAKER ◽  
ABM SHARIF HOSSAIN ◽  
NORMANIZA OSMAN ◽  
NASHRIYAH MAT ◽  
AMRU NASRULHAQ BOYCE
Keyword(s):  
Acetic Acid ◽  
Fruit Size ◽  
Growth Yield ◽  
Fruit Growth ◽  
Field Conditions ◽  
Soluble Solids ◽  
Growth And Yield ◽  
Postharvest Quality ◽  
Naphthalene Acetic Acid

Results of this study represent the first report of the effect of Naphthalene Acetic Acid (NAA) on the pre and post harvest quality of wax apple fruit. The wax apple trees were spray treated with 0, 5, 10 and 20 mg L-1 NAA under field conditions during 2008 to 2011. The experiments were carried out in Completely Randomized Design (CRD) with six replications. Leaf chlorophyll content, chlorophyll fluorescence, photosynthetic yield, net photosynthetic rate, drymatter content of leaves and total soluble solids and K+content of wax apple fruits were significantly increased after treatments with 10 mg L-1. Polygalacturonase activity significantly decreased with NAA treatments. The application of 5 mg L-1 NAA increased 27% more bud and reduced 42% less fruit drop compared to the control. In addition, higher protein and phosphate synthase activity of leaves, fruit set, fruit growth, larger fruit size and yield were recorded in NAA treated plants. In storage, treated fruits exhibited higher TSS and firmness and less weight loss, browning, titratable acidity, respiration and ethylene production than the control. It is concluded that spraying with 5 and 10 mg L-1 NAA once a week under field conditions produced better fruit growth and yield of the wax apple and maintained better fruit quality in postharvest storage.

Ammonium thiosulfate and 6-benzyladenine improve the crop load and fruit quality of 'Delicious' apples

2007 ◽  
Vol 47 (5) ◽  
pp. 635 ◽  
Author(s):  
S. A. Bound ◽  
S. J. Wilson
Keyword(s):  
Fruit Quality ◽  
Positive Relationship ◽  
Sugar Content ◽  
Fruit Size ◽  
Fruit Weight ◽  
Fruit Firmness ◽  
Single Application ◽  
Crop Load ◽  
Ammonium Thiosulfate

Four trials were conducted over 3 years to assess the effect of ammonium thiosulfate (ATS) as a blossom thinner of ‘Delicious’ apple trees. In addition to determining the optimal concentration of ATS and the effectiveness of multiple applications, the effect on fruit quality was assessed. A program using ATS at bloom and 6-benzyladenine (BA) applied postbloom was examined. Multiple applications of ATS reduced crop load more than a single application. A concentration of 1.0% (v/v, 5800 mg/L) applied twice during the flowering period is recommended, with the first application at 20% bloom and the second at 80% bloom. Fruit firmness and sugar content were increased by ATS, and a positive relationship between fruit weight and sugar content and between fruit weight and firmness was demonstrated. ATS can also be effectively combined in a program with BA with the added benefits of increases in fruit size, firmness and sugar content; however, caution is advised to prevent over-thinning.

scholarly journals Effect of Irrigation Frequency and Shade Levels on Vegetative Growth, Yield, and Fruit Quality of Piquin Pepper (Capsicum annuum L. var. glabriusculum)

HortScience ◽  
2016 ◽  
Vol 51 (5) ◽  
pp. 573-579 ◽  
Author(s):  
Juan I. Valiente-Banuet ◽  
Alejandro Gutiérrez-Ochoa
Keyword(s):  
Fruit Quality ◽  
Vegetative Growth ◽  
Load Capacity ◽  
Fruit Size ◽  
Growth Yield ◽  
Fruit Production ◽  
Irrigation Frequency ◽  
Horticultural Products ◽  
Yearly Data

In Mexico, piquin peppers are highly valued horticultural products with limited cultivated production due to low seed germination, morphologic and genetic variability, disease susceptibility, and limited environmental physiology information. The objective of this study was to evaluate the effects of irrigation frequency and shade level treatments on vegetative growth, yield, and fruit quality of a commercial ecotype of piquin pepper. The study was conducted during two consecutive years using a hierarchical linear mixed-effects model design, with yearly data of irrigation frequency as main treatment blocks and shade levels as secondary blocks (nested within irrigation frequency treatments). Our results indicate that more frequent irrigation and increased shade levels favored vegetative growth. In addition, moderate shade levels (interception of 35% of full sunlight) and daily irrigation provided the best conditions for fruit production. This effect could be attributed to an increase in vegetative growth (thus higher photosynthetic and crop load capacity); more moderate conditions (temperatures and relative humidity) that favored flowering and fruit set, or a combination of these factors. Fruit size and pungency were not significantly affected by the treatments. Our results provide basic information for the development of guidelines for the cultivation of piquin pepper plants.

scholarly journals Effect of plant growth regulators on growth, yield and fruit quality of strawberry (Fragaria x ananassa Duch.) under protected conditions

2017 ◽  
Vol 9 (3) ◽  
pp. 1676-1681
Author(s):  
Yash Thakur ◽  
J. S. Chandel ◽  
Pramod Verma
Keyword(s):  
Fruit Quality ◽  
Fruit Size ◽  
Foliar Spray ◽  
Growth Yield ◽  
Fruit Weight ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
And Control ◽  
Control Water

A field trial was conducted during 2015 and 2016, to study the effect ofgrowth regulators on growth, flowering, yield and fruit quality of strawberry cv. Chandler. The experiment was laid out in completely randomized design with 16 treatments viz.CPPU at 1, 2 and 4 ppm, GA3 at 25, 50 and 75 ppm, Promalin at 2, 4 and 6 ppm, GA4+7 at 5, 10 and15 ppm, NAA at 10, 20 and 30 ppm and control (water spray) and each treatment was replicated thrice. The results revealed that the plants sprayed with 15 ppm GA4+7 two weeks before flowering significantly reported highest plant height (33.43 cm), leaf area (239.70 cm2), number of flowers (31.94), fruit set (87.45 %), number of fruits per plant (29.02), yield (540.01 g/plant), fruit length (53.63 mm) and fruit diameter (37.19 mm) and fruit weight (23.70 g) as compared to control. This treatment resulted in 196.36 % increase in yield and 56.22 %in fruit weight over control. Plants sprayed with 6 ppm promalin also showed significant improvement in vegetative growth, fruit size, yield and fruit quality, which resulted in 137.92 % increase in yield and 51.81 % increase in fruit weight over control. Hence, it is concluded that foliar spray of 15 ppm GA4+7 applied 2 weeks before flowering is beneficial in improving growth, yield and fruit quality of strawberry plants.

scholarly journals Growth, Yield and Fruit Quality of Strawberry (Frageria ananasa Dutch) under Different Phosphorus Levels

2017 ◽  
Vol 2 (2) ◽  
pp. 19 ◽  
Author(s):  
Husain Ahmad ◽  
Muhammad Sajjid ◽  
Sikandar Hayat ◽  
Rizwan Ullah ◽  
Muhammad Ali ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Fruit Set ◽  
Fruit Size ◽  
Growth Yield ◽  
Soluble Solids ◽  
Strawberry Fruit ◽  
Fruit Maturity ◽  
The University ◽  
Phosphorus Levels

<p><em>Strawberry fruit takes less time for production and is easily multiplied. Fruiting is an exhaustive process and depletes nutrients especially phosphorus as it is highly immobile in the soil. An experiment was conducted in The University of Peshawar, Pakistan to evaluate different level of Phosphorous on growth, yield and fruit quality of Strawberry Cv Chandler. Results show that Phosphorus at 90 kg ha<sup>-1</sup> significantly influenced the days to flowering (102.66) of strawberry plants while, at 80 kg ha<sup>-1</sup> significantly affected days to fruit set (2.98), days to fruit maturity (20.05), Number of fruits (7.50) and Total fruit yield tons ha<sup>-1</sup>(3.61). Fruit size (6.42 cm3) was significantly affected at 70 kg ha<sup>-1</sup>. Similarly, Ascorbic acid (62.61), percent acidity (0.64) and Total soluble solids (7.83) were significantly affected by phosphorus at 60 kg ha<sup>-1</sup></em></p>

scholarly journals The influence of irrigation on growth and yield of plum trees cv. Valor grafted on Myrobalan and Wangenheim Prune

2013 ◽  
Vol 52 (1-2) ◽  
pp. 95-101 ◽  
Author(s):  
Waldemar Treder ◽  
Zygmunt Grzyb ◽  
Elżbieta Rozpara
Keyword(s):  
Fruit Quality ◽  
Drip Irrigation ◽  
Fruit Size ◽  
Growth Yield ◽  
Weather Conditions ◽  
Growth And Yield ◽  
Average Weight ◽  
Growth Changes ◽  
The Individual ◽  
Positive Effect

The climate of Poland is characterized by a high variability, especially regarding the sum of precipitation and its distribution in the season. Dry years occur periodically. Repeated negative climatic water balance for vegetative season is insufficient for proper growth and development of plants. In this experiment we studied the effectiveness of drip irrigation in plum tree cultivation. The study was carried out since 1990 to 1998 in the orchard of the Institute of Pomology and Floriculture in Skiemiewice. Trees of plum cv. Valor, grafted on Myrobalan and Wangenheim Prune seedlings were planted in the spring 1990 at a distance 4,2 m x 2,9 m. Influence of drip irrigation on trees growth changes, yield and fruit quality depended on weather conditions in the individual years. Generally, drip irrigation significantly increased the tree growth, yield and fruit quality. Higher positive effect of irrigation was obtained for plums grafted on Wangenheim Prune seedlings than on Myrobalan seedlings. Drought conditions clearly decreases the average weight of the fruit of the trees grafted on Wangenheim Prune. The rootstocks had no effect on fruit size.

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