Influence of light quality on flowering characteristics, potential for year-round fruit production and fruit quality of blueberry in a plant factory

This study was aimed at observing the effect of the grafting of tomato plants on morphological (vegetative growth), production and nutritive characteristics (quantity and quality of production). For this purpose, the ‘Lorely F1’ cultivar was used as a scion grafted onto the ‘Beaufort’ rootstock. Plants were cultivated with a stem and two stems. The observations collected in this study were concerned with the characteristics of plant growth. The studied morphological characteristics were plant height, stem diameter and number of leaves, and the studied production characteristics were the characteristics of fructification and productivity (the average number of fruit per plant, the average weight of the fruit, production per plant). Particular attention was paid to the nutritional characteristics of the fruit, to the fruit quality (total soluble solids, total sugar, acidity, vitamin C, antioxidant activity (by the Trolox method) and the contents of lycopene and beta-carotene). The results showed that grafting positively influenced the growth and production characteristics. Grafting of tomato plants had an appreciable effect on the vegetative growth of the variant 2-grafted tomatoes with a stem. The best option in terms of productivity and production was the variant 3-grafted tomatoes with two stems, which yielded 9.2 kg per plant. Fruit quality was not improved in any of the grafted variants.

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Production and quality of strawberry cultivated under different colors of low tunnel cover

Horticultura Brasileira ◽

10.1590/s0102-053620170308 ◽

2017 ◽

Vol 35 (3) ◽

pp. 364-370 ◽

Cited By ~ 4

Author(s):

Juliane M Henschel ◽

Juliano TV Resende ◽

Patrícia C Giloni-Lima ◽

André R Zeist ◽

Renato B Lima Filho ◽

...

Keyword(s):

Fruit Quality ◽

Light Quality ◽

Specific Response ◽

Light Spectrum ◽

Vegetative Traits ◽

Low Tunnels ◽

Social Importance ◽

Physiological And Biochemical ◽

Lower Production

ABSTRACT Strawberry is a crop of great economic and social importance. Its fruits are appreciated both for their flavor and nutraceutical potential. Some studies confirm that light quality influences plant physiology. Thus, the aim of this study was to investigate if changes in light spectrum, provided by low tunnels, can improve vegetative traits, as well as, production and fruit quality of strawberry. The authors used six tunnel covers (red, yellow, blue, green, transparent and opaque and one control, without cover), and two cultivars: a short photoperiod cultivar (Camarosa) and a neutral photoperiod cultivar (Albion). Experiment was evaluated in two seasons: production and plant development first; and then, post-harvest quality. Overall, Camarosa showed higher vegetative growth, lower production, and better fruit quality than Albion. Due to the complexity of physiological and biochemical responses, each trait evaluated showed a specific response to light changes. The red, blue, yellow and green covers did not show any significant improvement comparing with transparent and opaque covers. Thus, the authors suggest the use of the latter ones which have already been used commercially.

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Growth of Leaf Lettuce as Affected by Light Quality of LED in Closed-Type Plant Factory System

Protected horticulture and Plant Factory ◽

10.12791/ksbec.2013.22.4.291 ◽

2013 ◽

Vol 22 (4) ◽

pp. 291-297 ◽

Cited By ~ 8

Author(s):

Mi-Kyung Cha ◽

◽

Ju-Hyun Cho ◽

Young-Yeol Cho

Keyword(s):

Light Quality ◽

Closed Type ◽

Plant Factory ◽

Leaf Lettuce

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Phenology, yield and fruit quality of 'Paluma' guava tree at different pruning times

Ciência e Agrotecnologia ◽

10.1590/1413-70542016403033315 ◽

2016 ◽

Vol 40 (3) ◽

pp. 317-325 ◽

Cited By ~ 1

Author(s):

Marlon Jocimar Rodrigues da Silva ◽

Marco Antonio Tecchio ◽

Sofia Domiciano ◽

Sarita Leonel ◽

Rodrigo Issa Balestrero

Keyword(s):

Fruit Quality ◽

Titratable Acidity ◽

Fruit Production ◽

Soluble Solids ◽

Management Tool ◽

Fixation Index ◽

Core Mass ◽

Randomized Design ◽

Longitudinal Diameter

ABSTRACT Pruning guava trees at different times is an important management tool that allows year-long staggering of fruit production. In this context, this study aimed to evaluate the phenological characteristics, yield and fruit quality of the 'Paluma' guava tree at different pruning times in Botucatu, SP. The study used a completely randomized design with four treatments, four replicates and a useful experimental plot plant. The treatments consisted of four different pruning times, August 27, September 11, September 26 and October 11. The following phenological phases were evaluated: branch establishment, flowering, early fruiting, fruit ripening and harvesting. It was determined the number of flower buds, fixed fruits and fixation index fruit were determined. The fruit growth curve was obtained by measuring the transverse and longitudinal diameter. At the time of harvest, the number of fruits per plant, yield and productivity were measured. In the harvested fruits, the fresh mass, the transverse and longitudinal diameter, the flesh and core thickness, the flesh and core mass, soluble solids, titratable acidity and pH were determined. The 'Paluma' guava trees pruned in August showed higher phenological stage durations than the other pruning times; however, those pruned in early September showed higher fixation index fruit, fruit yield and better physical characteristics. The guava trees pruned in August showed lower titratable acidity values and higher soluble solids/titratable acidity ratio.

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

HortScience ◽

10.21273/hortsci.51.5.573 ◽

2016 ◽

Vol 51 (5) ◽

pp. 573-579 ◽

Cited By ~ 6

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.

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Study on comparative efficacy of bio-organic nutrients on plant growth, leaf nutrient contents and fruit quality attributes of kiwi fruit

Journal of Applied and Natural Science ◽

10.31018/jans.v7i1.584 ◽

2015 ◽

Vol 7 (1) ◽

pp. 175-181 ◽

Cited By ~ 3

Author(s):

Babita Khachi ◽

Som Dev Sharma ◽

Ghumare Vikas ◽

Pramod Kumar ◽

Muzaffar Mir

Keyword(s):

Fruit Quality ◽

Fruit Production ◽

Plant Nutrient ◽

Comparative Efficacy ◽

Farm Yard Manure ◽

Kiwi Fruit ◽

Nutrient Contents ◽

Nutrient Profile ◽

Organic Nutrients

The comparative efficacy of bio-organic nutrients on cropping behavior and fruit quality of kiwifruit was analyzed using farm yard manure (FYM), vermicompost (VC), biofertilizers (BF), green manure (GM), and vermiwash (VW). Among various treatments the combination of FYM at 15 kg/vine, GM, VC at 15kg/vine, BFat50-g/ vine and VW at 2kg/vine significantly improved cropping behavior. This superior combination also resulted in considerably greater amounts of leaf macro-and micronutrients: N (2.49%), P (0.26%), K (1.48%), iron (Fe: 208.0 mg/kg), copper (Cu: 17.8 mg/kg), zinc (Zn: 36.2 mg/kg), and manganese (Mn: 88.3 mg/kg),which might be responsible for better cropping behavior, productivity and nutrient profile for sustainable kiwi fruit production. It can be concluded that with use of various sources of bio-organic materials under organic farming regime, there will be sufficient improvement in fruit quality and plant nutrient contents.

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Influence of colour net shading on quantity and quality of sweet pepper yield

Review on Agriculture and Rural Development ◽

10.14232/rard.2014.2.429-434 ◽

2014 ◽

Vol 3 (2) ◽

pp. 429-434

Author(s):

Hajnalka Ledóné Darázsi

Keyword(s):

High Temperature ◽

Fruit Quality ◽

Plant Development ◽

Light Quality ◽

Sweet Pepper ◽

Summer Season ◽

Natural Light ◽

Light Conditions ◽

Pepper Plants

Sweet pepper (Capsicum annuum L.) is one of the main cultivated vegetable species in Hungary mostly produced under plastic tunnel by unheated technology. Sweet pepper plants could suffer high temperature and radiation during summer season. However, photoselective-shading nets can provide a new tool for light quality manipulation and support the plant development and fruit quality. The effect of shading colour nets depends on natural light conditions and other environment factors; therefore it is necessary to evaluate the shading technology. Hungarian sweet pepper variety was grown in South-East part of Hungary under plastic tunnels using different colour nets, as white, yellow, green and red, for shading in 2013. Results of trial proved that green colour shading net usually decrease the yield, while yellow and red nets can increase the yield and the fruit quality of Hungarian type sweet pepper. Growers have to care the shading intensity of the net, which should not be higher than 35-40%. Colour shading nets can be placed onto the plastic tunnels just after the planting.

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Plant Arrangement and Cultivar Effects on Yield and Fruit Quality of Bell Pepper

HortScience ◽

10.21273/hortsci.39.4.800d ◽

2004 ◽

Vol 39 (4) ◽

pp. 800D-801

Author(s):

Brian A. Kahn* ◽

Daniel I. Leskovar

Keyword(s):

Fruit Quality ◽

Fruit Production ◽

Bell Pepper ◽

King Arthur ◽

Double Row ◽

Blossom End Rot ◽

Plant Arrangement ◽

Marketable Fruit ◽

Fixed Population

Single- and double-row arrangements of a fixed population (one plant every 0.285 m2) were compared in factorial combination with two (2002) or five (2003) cultivars for effects on yield and fruit quality of bell pepper (Capsicum annuum L.). Arrangements for 2002 were: (1) 1.9 m between centers of double-row beds, rows on beds 30 cm apart, plants within rows 30 cm apart; (2) single rows 0.95 m apart, plants within rows 30 cm apart; (3) 1.52 m between centers of double-row beds, rows on beds 24 cm apart, plants within rows 37.5 cm apart; and (4) single rows 0.76 m apart, plants within rows 37.5 cm apart. Only arrangements (1) and (2) were used in 2003. Row arrangement did not affect marketable fruit production in Oklahoma in 2002, but single rows resulted in a greater weight of fruit with blossom-end rot than double rows. Arrangement (2) resulted in both a greater weight of U.S. No. 1 fruit and a greater weight of sunburned fruit than arrangement (1) in Texas in 2002. `King Arthur' produced more marketable fruit than `X3R Wizard' in Oklahoma in 2002, but the opposite occurred in Texas. Arrangement (2) resulted in a greater weight of U.S. No. 1 fruit than arrangement (1) in both locations in 2003. Arrangement (2) also resulted in greater weights of sunburned (Oklahoma) or total cull (Texas) fruit than arrangement (1) in 2003. `Lafayette' and `X3R Wizard' produced a greater weight of marketable fruit than `Boynton Bell', `Karma', and `King Arthur' in Texas in 2003, but not in Oklahoma. Plant arrangement × cultivar interactions were not evident in Oklahoma and minimal in Texas. Given the tested population, a single row arrangement is likely to result in higher U.S. No. 1 fruit yields than a double-row arrangement, despite an increased potential for cull fruit production with single rows.

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