Stem conduction systems effect on the production and quality of mini tomato under organic management

Candian, Joara Secchi; Martins, Bruno Novaes Menezes; Cardoso, Antônio Ismael Inácio; Evangelista, Regina Marta; Fujita, Erika

doi:10.1590/1678-4499.558

Cited by 10 publications

(11 citation statements)

References 18 publications

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“…Fruit acidity (pH) was not influenced by experimental factors, showing an average of 4.3 in both crop cycles. The pH values found in this study were similar to those found in an organic production system (Carvalho et al, 2017;Candian et al, 2017), and within a range that is thought to be desirable for in natura tomato consumption, with values higher than 3.7. As a rule, overly acidic tomatoes are rejected by consumers (Borguini and Silva, 2007).…”

Section: Resultssupporting

confidence: 81%

“…The higher number of fruit and higher yield per area with higher planting densities and the increase in the number of stems in the SS cultivation cycle are possibly related to an increase in LAI (on average 3.08 for a 3.6 m -2 plant density and 2.93 for 4 stemmed plants) and, consequently, a greater canopy efficiency at interception (Heuvelink, 1995;Papadopoulos and Pararajasingham, 1997) and the use of the abundant solar radiation available in the SS period. Candian et al (2017) and Charlo et al (2009) also found a higher number of fruit when the plants had a greater number of stems.…”

Section: Racemementioning

confidence: 87%

“…The correct planting density choice provides greater efficiency in the interception and use of solar radiation on the canopy and, consequently, higher yield per area. However, higher planting density decreases average fruit mass (Candian et al, 2017), as it reduces solar radiation penetration in the canopy. Thus, lower planting densities would provide an increase in photoassimilate production in the plant, resulting in greater fruit number and size.…”

Section: Introductionmentioning

confidence: 99%

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Planting density and number of stems for ecological crop determinate growth tomato

Martins¹,

Watthier²,

Schwengber³

et al. 2018

Afr. J. Agric. Res.

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Tomato growers adopting an ecologically based system have opted for determinate growth varieties due to their ease of staking and sprouting, and due to the fact that they have a shorter cycle, which reduces phytosanitary problems that usually occur towards the end of the growing season. This study aimed to evaluate yield components and fruit quality of 'Floradade' determinate growth tomato in an ecologically based production system with regard to plant density and number of stems per plant in two growing seasons, spring-summer (SS) and summer-fall (SF). Two experiments were conducted in Pelotas in the years 2010/2011 under open field conditions. Plants were trained with two or four stems and four plant densities were evaluated: 2.0; 2.5; 3.0 and 3.6 plants m-2 in SS, and 1.5; 2.0; 2.5 and 3.0 plants m-2 in SF. The fruit number, fruit average weight, fruit yield, ascorbic acid content, total soluble solids and fruit pH were evaluated. The average fruit yield obtained in SF was on average 80% lower than that in SS. The increase of plant density and number of stems per plant led to an increase in fruit number and fruit yield in the two crop seasons. There was an increase in total soluble solids and reduction in the ascorbic acid content of the fruit. Two stems per plant and plant density of 3.0 plants m-2 are recommended for the 'Floradade' tomato crop under an ecological production system and SS crop conditions.

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Section: Resultssupporting

confidence: 81%

Section: Racemementioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Planting density and number of stems for ecological crop determinate growth tomato

Martins¹,

Watthier²,

Schwengber³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…We found that the mean and maximum temperatures were above the range considered optimal for development and fruiting of the crop, which is between 18.5 and 26.5ºC (Keillor, 2008), despite the statement by Alvarenga (2013), that the tomato can tolerate temperature variations in the range of 10 to 34ºC. When the temperature departs from the optimum, it causes stress to the plant, resulting in flower abortion and commercial yield losses (Candian et al, 2017).…”

Section: Air Temperaturementioning

confidence: 85%

Response of the cherry tomato to watering and ground cover under organic cultivation

Silva¹,

Rabelo²,

Costa³

et al. 2019

Aust J Crop Sci

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Studies on production factors of the irrigated organic cherry tomato in the Brazilian semi-arid region are just at the beginning phase. It mainly focuses on adequate irrigation management. Therefore, the aim of the present study was the technical and economic evaluation of some production factors like water and ground cover on cherry tomato. The climate of the region is of the BSw'h type, hot and semi-arid, with irregular rains distributed from February to May. The ground has fairly flat relief. The soil presents a sandy loam texture, well-drained, without risk of salinity and sodicity problems. The experimental design was of randomised blocks with three replications and subdivided plots, comprising five primary treatments in the plots and three secondary treatments arranged in the subplots. The primary treatments consisted of five levels of irrigation with 50, 75, 100, 125 and 150% of crop evapotranspiration, and three secondary treatments were assigned with ground covers of carnauba straw (CS), elephant grass (EG), plus a control treatment with no ground cover. The crop was irrigated by a system of drip irrigation. The results showed estimated slides equivalent to 454 mm (107% ETc loc), 461 mm (109% ETc loc) and 592 mm (140% ETc loc) can contribute to the highest commercial yield, corresponding to 11401, 10466 and 7802 kg ha-1 of cherry tomatoes for carnauba straw, elephant grass and uncovered soil, respectively. Carnauba straw presented potential as a vegetative cover, being economically feasible as it allowed a reduction in water consumption and yield of cereal tomato under poor irrigation strategy.

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“…It was set up in the context of five greenhouse leaders from a same farm needing to agree on how much stems per plant they should use for the next crop. The farmers have this doubt since they heard from a study stating that increasing the number of stems to 3 or 4 significantly increase yield without significantly compromising the fruit quality [11]. But such experiment was run in a place where the conditions of the soil and the weather change, and with a different kind of mini-tomato seed.…”

Section: Training the End Usersmentioning

confidence: 99%

UX Challenges in GDSS: An Experience Report

Sakka

Bosetti

Grigera

et al. 2019

Lecture Notes in Business Information Processing

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In this paper we present a user experience report on a Group Decision Support System. The used system is a Collaborative framework called GRoUp Support (GRUS). The experience consists in three user tests conducted in three different countries. While the locations are different, all three tests were run in the same conditions: same facilitator and tested process. In order to support the end-users. we teach the system in two different ways: a presentation of the system, and a video demonstrating how to use it. The main feedback of this experience is that the teaching step for using Collaborative tools in mandatory. The experience was conducted in the context of decision-making in the agriculture domain.

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Stem conduction systems effect on the production and quality of mini tomato under organic management

Cited by 10 publications

References 18 publications

Planting density and number of stems for ecological crop determinate growth tomato

Planting density and number of stems for ecological crop determinate growth tomato

Response of the cherry tomato to watering and ground cover under organic cultivation

UX Challenges in GDSS: An Experience Report

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