Water Management for Schinus terebinthifolius Raddi Seedlings in Degradable Containers

Viégas, Lucas Bertacini; Simões, Danilo; Lima, Kaio Baron de; Silva, Magali Ribeiro da

doi:10.1590/2179-8087.008416

Cited by 4 publications

(5 citation statements)

References 17 publications

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“…The average diameter was 4.53 mm in the CPP system and 4.41 mm in the Plug system, consistent with previous studies showing increased thickness of tomato plug seedlings with increasing irrigation (Park and Jeong, 2003;Kim et al, 2018). CP ranged from 36.89 to 42.31 mg/cm in the CPP system and 38.28 to 42.53 mg/cm in the Plug system, consistent with previous results showing increase in CP as irrigation volume increased under CPP system for pine seedlings (Lucas et al, 2018). However, it differed from results of Kim et al (2018) showing that the CP of tomato plug seedlings decreased with increasing irrigation volume.…”

Section: Resultssupporting

confidence: 91%

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Responses of Vegetable Seedlings Grown on Cylindrical Paper Pots or Plug Trays to Water Stress

Jang¹,

Kweon²,

Kim³

et al. 2020

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The objective of this study was to examine responses of vegetable seedlings grown on plug seedling system (Plug) or cylindrical paper pot (CPP) system to water stress. Cucumber 'Jo-eun' was grafted onto stock 'Huckjong'. Watermelon 'Jo-eunggul' was grafted onto stock 'Bulojangsaeng'. Growth factors of seedlings were investigated. Top-to-root ratio (TRR), compactness (CP), and Dickson Quality Index (DQI) as indicators of seedling quality were calculated based on time periods. Results revealed that the overall shoot of cucumber and watermelon grown in the CPP system was higher than the shoot grown in the Plug system. In both CPP and Plug systems, the total growth decreased as the irrigation water volume increased, while the seedling stem was thick and hard. The higher the irrigation water level, the greater was the inhibition of root zone development. When the degree of growth reduction was comparing between the two systems, the growth rate of cucumber was lower in the CPP system than that in the Plug system, whereas the growth rate of watermelon was decreased due to increased irrigation water content only in the Plug system. The degree of growth tended to decrease with increasing volume of irrigation water in both CPP and Plug systems. The degree of decreased growth was greater in the Plug system than in the CPP system. The decrease started to occur in the mid-growth phase. It intensified with further growth. In conclusion, extensive irrigation during early stages of growth can enhance the growth of seedlings in both CPP and plug systems. However, growth was suppressed after reaching a certain level. This effect was relatively lower in the CPP system than in the Plug system.

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Section: Resultssupporting

confidence: 91%

“…Most of previous studies investigating moisture management of conventional seedlings were conducted using the Plug system or the flowerpot cultivation system (Shim et al, 2018;Ndikumana et al, 2019). Although Lucas et al (2018) have conducted irrigation studies using cylindrical paper pots, their study is on trees.…”

Section: Introductionmentioning

confidence: 99%

Responses of Vegetable Seedlings Grown on Cylindrical Paper Pots or Plug Trays to Water Stress

Jang¹,

Kweon²,

Kim³

et al. 2020

HST

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“…2020 pepper, is widely distributed in South America, including Brazil with its diverse biomes. In adult phase, this species can reach a height of 5 to 10 m, and it bears small and reddish fruits, which are attractive to wild fauna (Oliveira Júnior et al, 2013;Viégas et al, 2018). The species has potential for use in integrated production systems and/or degraded areas with the goal of ecosystem service restoration.…”

Section: Introductionmentioning

confidence: 99%

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH

et al. 2020

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The use of water-retaining polymer (hydrogel) can mitigate the damage to the photosynthetic apparatus and increase the robustness of young plants under water deficit conditions. Thus, the aim of this study was to evaluate the effect of water-retaining polymer on the morphophysiological aspects of Schinus terebinthifolia Raddi submitted to water deficit. The studied water regimes were characterized by three plant irrigation management: 1) control: irrigated daily, 2) stress: water deficit (irrigation suspension) and 3) stress + hydrogel: water deficit + water-retaining polymer. The plants were submitted to irrigation suspension until photosynthesis approached zero [1 st P0], followed by resumption of irrigation (REI) for 15 days. After REI, until recovery of photosynthetic rate of plants, the maintenance of irrigation of all plants for 90 days, characterizing the final recovery (125 th day of experiment). The photosynthetic rate reached values close to zero in plants under stress on the 20 th day of water restriction, whereas the plants in conditions with hydrogel did not show a decrease in leaf metabolism. Excluding intercellular CO2 concentration, physiological parameters were lower on 1 st P0 in plants under water deficit grown without hydrogel than those in plants grown with hydrogel, but all plants showed physiological plasticity. The use hydrogel contributed to the maintenance of the photosynthetic capacity of S. terebinthifolia under water deficit.

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“…Acta Iguazu, Cascavel, v.9, n.3, p. 78-87, 2020 Production of yerba mate seedlings is made mostly in containers such as plastic bags and polyethylene tubes (Wendling et al, 2006). Salto et al (2016) point out that physical and chemical properties of substrates are also related to the dimensions and shape of containers.…”

Section: _____________________________________________________________mentioning

confidence: 99%

“…Plastic bags are easy to fill, but its handling in nursery is not ergonomic. Despite the difficulties of filling and handling Paperpot and TNT containers, it is important to point out that, because there is no need to remove seedlings from the containers in the planting, their establishment and initial growth in the field is faster (Viégas et al, 2018).…”

Section: _____________________________________________________________mentioning

confidence: 99%

Alternative substrates and containers for Ilex paraguariensis seedlings

et al. 2020

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Yerba mate is a Brazilian native species; its importance is due to cultural, environment, and economic factors. Species seedlings production needs to be improved, evaluating alternative substrates and containers. Therefore, we evaluated growth and quality of yerba mate seedlings produced on organic waste-based substrates in biodegradable and non-biodegradable containers. Commercial substrates based on pine bark (CS) and components based on sewage sludge (SS) and coal residue (granulometry from 1 to 3 mm - CR) were used. For each container, were prepared treatments with different substrate components: 75CS/25CR, 50CS/50CR, 25CS/75CR, 75CS/25SS, 50CS/50SS, 25CS/75SS, and CS. Substrates were submitted to physical and chemical analysis. The containers used were 110 cm³ polypropylene tubes, 500 cm³ polyethylene plastic bags, 460 cm³ paperpot®, and 460 cm³ TNT (non-woven fabric). Total height, stem diameter, shoot, and root dry biomass at the end of the seedlings production period were measured and total dry mass, Dickson quality index and height/diameter ratio were calculated. All containers used with commercial substrate provided satisfactory seedlings growth. The substrates showed distinct physical and chemical characteristics due to the addition of sewage sludge and coal residue, which resulted in higher pH and lower seedlings growth. Physical and chemical characteristics of substrates influenced growth and quality of yerba mate seedlings and the alternative substrates used in this study are not suitable to produce seedlings of the species on these conditions. The containers did not influence the variables used in this study.

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Water Management for Schinus terebinthifolius Raddi Seedlings in Degradable Containers

Cited by 4 publications

References 17 publications

Responses of Vegetable Seedlings Grown on Cylindrical Paper Pots or Plug Trays to Water Stress

Responses of Vegetable Seedlings Grown on Cylindrical Paper Pots or Plug Trays to Water Stress

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH

Alternative substrates and containers for Ilex paraguariensis seedlings

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