scholarly journals `Valencia' Orange Fruit Yield with Ambient Oxidant or Sulfur Dioxide Exposures

1990 ◽  
Vol 115 (6) ◽  
pp. 878-883 ◽  
Author(s):  
D.M. Olszyk ◽  
G. Kats ◽  
C.L. Morrison ◽  
P.J. Dawson ◽  
I. Gocka ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Tree Growth ◽  
Fruit Yield ◽  
Yield And Quality ◽  
Chronic Effects ◽  
Valencia Orange ◽  
Orange Fruit ◽  
Effect On Yield ◽  
Individual Trees

Three-year-old `Valencia' orange [Citrus sinensis (L.) Osbeck] trees were exposed to air pollutants for 4. years in open-top field chambers to determine the chronic effects of ambient oxidants (primarily ozone) or sulfur dioxide (SO2) on fruit yield and quality and tree growth. Ozone concentrations averaged 0.012,0.040, and 0.075 ppm for 0800 to 2000 hr during April to October for filtered, half-ambient, and full ambient oxidant chambers. Sulfur dioxide was applied continuously at 0.09 ppm. Oxidant and SO2 effects were only marginally significant, as there was considerable variability in response among individual trees and between years. Across two “on” production years, yields were 31% lower with ambient oxidants, 11% lower with half-ambient oxidants, and 29% lower with sulfur dioxide compared to filtered air. Number of fruit per tree was reduced by ambient oxidants and SO2. Individual fruit weights were reduced by ambient oxidants, but no other fruit quality characteristics showed definite responses to ambient oxidants or SO2. Ambient oxidants had no effect on yield or quality of fruit during one “off' production year. Neither ambient oxidants nor SO, affected tree growth.

scholarly journals Impact of sustained-deficit irrigation on tree growth, mineral nutrition, fruit yield and quality of mango in Spain

Fruits ◽  
2011 ◽  
Vol 66 (4) ◽  
pp. 257-268 ◽  
Author(s):  
Víctor Hugo Durán Zuazo ◽  
Carmen Rocío Rodríguez Pleguezuelo ◽  
Dionisio Franco Tarifa
Keyword(s):  
Tree Growth ◽  
Mineral Nutrition ◽  
Deficit Irrigation ◽  
Fruit Yield ◽  
Yield And Quality

scholarly journals Effects of Combination Between Nitrogen and Potassium Fertilization on Yield and Quality of Valencia Orange Fruits

2019 ◽  
Vol 12 (1) ◽  
pp. 38
Author(s):  
Hien Huu Nguyen ◽  
Toan Nguyen Tai
Keyword(s):  
Fruit Juice ◽  
N Fertilization ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Yield And Quality ◽  
Valencia Orange ◽  
K Fertilization ◽  
Juice Content ◽  
Fruit Diameter

Nitrogen (N) and potassium (K) are the most important nutrients for fruit yield and quality of citrus. Farmers - growing orange is usually applied high rates of N and K fertilizers. The study was carried out during 2017 and 2018 production year on a 4-year Valencia orange. The objective of the present paper was to evaluate the effect of combination between nitrogen and potassium on fruit yield and quality of Valencia orange. The experiment was used three doses of N (0.5, 1.0, and 1.5 kg/tree) in form of urea and three doses of K (0.6, 0.9, and 1.2 kg/tree) in form of potassium chloride in all combinations. The obtained results showed that N and K concentrations in soil did not increase with increment of N and K fertilization. Increment of N and K fertilization increased N content but did not increase K content in leaves. Fruit weight, fruit diameter and peel thickness increased with increasing of N fertilization. Maximum fruit yield of Valencia orange was attained with rates of 0.5 kg N/tree combined with 0.9 kg K/tree. Juice content increased with increasing amount of N fertilization. Increment of K fertilization tend to increase total acidity in fruit juice. The highest TSS and TSS/TA were attained with rates of 0.5 kg N/tree combined with 0.9 kg K/tree.

scholarly journals Effects of the First Bearing Age on Tree Growth, Fruit Yield and Quality of Satsuma Mandarin ‘Otsu-No. 4’ Grafted on Dwarf Rootstock ‘Hiryu’

2012 ◽  
Vol 11 (1) ◽  
pp. 69-74
Author(s):  
Hidenori Ohkura ◽  
Daijiro Yahata ◽  
Kosaku Ushijima ◽  
Koji Muramoto ◽  
Takuro Suyama ◽  
...  
Keyword(s):  
Tree Growth ◽  
Fruit Yield ◽  
Satsuma Mandarin ◽  
Yield And Quality

scholarly journals Addition of nitrogen had no effect on yield and quality of apples in an high density orchard carrying a dwarf rootstock

2008 ◽  
Vol 30 (4) ◽  
pp. 1113-1118 ◽  
Author(s):  
Paulo Roberto Ernani ◽  
Douglas Antônio Rogeri ◽  
Marcelo Machado Proença ◽  
Jaques Dias
Keyword(s):  
Organic Matter ◽  
Fruit Quality ◽  
Fruit Production ◽  
High Density ◽  
Fruit Yield ◽  
Soluble Solids ◽  
N Addition ◽  
Yield And Quality ◽  
Effect On Yield

The effect of N addition on apple yield and quality may vary according to the tree vigor. Apple trees developed over vigorous rootstocks had shown no response to N application in Brazil. In this study it was evaluated the effect of N addition to the soil on yield and quality of ´Royal Gala´ apples grafted on a dwarf rootstock (M.9). The orchard was planted in 1995 (2,857 trees ha-1) on an Oxisol containing 40 g kg-1 of organic matter and pH 6.0. The experiment was carried out from 1998 up to 2005. Treatments consisted of rates of N (0, 50, 100 and 150 kg ha-1 year-1 from 1998 to 2001, and respectively 0, 100, 200 and 300 kg ha-1 afterwards), all broadcasted within the tree row in two equal splits, at bud break and after harvest, as ammonium sulfate. Addition of N to the soil had no effect on fruit yield over the six years regardless of the applied rate. Averaged across treatments and years, fruit yield was 52.3 t ha-1. Nitrogen in the leaves (average of 24 g kg-1) or in the fruits (average of 346 mg kg-1) as well as some attributes related to fruit quality (color, firmness, acidity, soluble solids, physiological disorders) were unaffected by N addition. Some plant parameters related to tree vigor, however, grew higher with the increase on N rate. Thus, it is not necessary to apply N to deep Brazilian soils containing high organic matter in order to assure good fruit quality and yield on high-density orchards carrying dwarf rootstocks probably because the N required for tree growth and fruit production is supplied from soil organic matter decay.

Zinc and Boron Application at Different Phenological Stages Alleviates Tree Growth, Fruit Yield and Quality of Sweet Orange Cv. ‘Blood Red’

2022 ◽  
Author(s):  
Sammen Walli ◽  
Ishfaq Ahmed Hafiz ◽  
Rashid Iqbal Khan ◽  
Muhammad Ajmal Bashir ◽  
Sareer Uddin ◽  
...  
Keyword(s):  
Tree Growth ◽  
Sweet Orange ◽  
Fruit Yield ◽  
Phenological Stages ◽  
Yield And Quality

Fruit yield and quality of Dhakki date as affected by fresh and stored pollens of potential male genotypes

2019 ◽  
Vol 51 (5) ◽  
Author(s):  
Muhammad Iqbal ◽  
Khalid Usman ◽  
Shakeel Ahmad Jatoi ◽  
Muhammad Munir
Keyword(s):  
Fruit Yield ◽  
Yield And Quality

Foliar application and seed priming of salicylic acid affect growth, fruit yield, and quality of grape tomato under drought stress

2021 ◽  
Vol 280 ◽  
pp. 109904
Author(s):  
Remi Chakma ◽  
Arindam Biswas ◽  
Pantamit Saekong ◽  
Hayat Ullah ◽  
Avishek Datta
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Foliar Application ◽  
Seed Priming ◽  
Fruit Yield ◽  
Yield And Quality

Development of Organically Complexed-Bioaugmented Boron-Coated DAP and Its Effect on Yield and Quality of Canola (Brassica napus L.)

2021 ◽  
Author(s):  
Tayyaba Samreen ◽  
Muhammad Imran ◽  
Zahir Ahmad Zahir ◽  
Muhammad Zulqernain Nazir ◽  
Saima Noureen ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Brassica Napus L ◽  
Yield And Quality ◽  
Effect On Yield

Vermicompost substitution influences growth, physiological disorders, fruit yield and quality of strawberry (Fragaria x ananassa Duch.)

2008 ◽  
Vol 99 (17) ◽  
pp. 8507-8511 ◽  
Author(s):  
Rajbir Singh ◽  
R.R. Sharma ◽  
Satyendra Kumar ◽  
R.K. Gupta ◽  
R.T. Patil
Keyword(s):  
Fragaria X Ananassa ◽  
Fruit Yield ◽  
Physiological Disorders ◽  
Yield And Quality

Effects of Actinidia yellowing ringspot virus on the yield and quality of kiwifruit

Plant Disease ◽  
2021 ◽  
Author(s):  
Yi Wu ◽  
Yicheng Wang ◽  
Jiaxiu Sun ◽  
Yuling Liu ◽  
SHRESTHA SUJATA ◽  
...  
Keyword(s):  
Dry Matter ◽  
Matter Content ◽  
Fruit Yield ◽  
Ringspot Virus ◽  
Shaanxi Province ◽  
Dry Matter Content ◽  
Total Acid ◽  
Yield And Quality ◽  
Acid Ratio

China is the origin and distribution center of kiwifruit, as well as the country with the largest cultivated area and output of kiwifruit. A previous study found that a new kiwifruit virus, Actinidia yellowing ringspot virus (AYRSpV), has been detected in kiwifruit samples with yellowed leaves. The incidence of this virus was high in kiwifruit plantings in Shaanxi Province. To determine the symptoms of this viral infection and the effects of this virus on the yield and quality of kiwifruits, we measured leaf chlorophyll levels and the fruit yield, total sugar, total acid and dry matter contents of ‘Hayward’ kiwifruits grafted with AYRSpV-infected scions. The results showed that after AYRSpV infection, symptoms including chlorotic ringspots were mainly observed in the spring and gradually recovered with high summer temperatures. A few of the leaves that did not recover showed symptoms of albinism, which lasted until the leaves fell. We found that AYRSpV infection could reduce the chlorophyll content of ‘Hayward’ kiwifruit by 74.61-76.64%, the fruit yield by 14.50-24.10%, the sugar to acid ratio by 50.09-50.57%, and the fruit dry matter content by 1.67-1.78%. Our results showed that AYRSpV infection could significantly affect the yield and quality of ‘Hayward’ kiwifruit.

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