Water requirement and growth indicators of forest tree species seedlings produced with automated irrigation management

Bueno, Mateus Marques; Leles, Paulo Sérgio dos Santos; Abreu, João Felício Gonçalves; Santos, Jaqueline Jesus Santana dos; Carvalho, Daniel Fonseca de

doi:10.1371/journal.pone.0238677

Cited by 7 publications

(6 citation statements)

References 29 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pressure switch turned off the irrigation stream when the soil water tension reached approximately 1.0 kPa. The SIC has been used in various studies and offers adequate irrigation management in the tomato (Gomes et al, 2017), onion (Mello et al, 2018), gladiolus (Santos et al, 2020), zinnia (Martins et al, 2021), and forest tree species (Bueno et al, 2020(Bueno et al, , 2021, among others, both in pots/tubs and under field conditions.…”

Section: Methodsmentioning

confidence: 99%

Yield response factor (Ky) and initial growth in black pepper in a tropical environment

Carvalho

Teles

Cruz³

et al. 2023

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

Black pepper is widely produced in Brazil, though there are few studies related to its water requirements and the effects of water deficit (WD) applied under tropical conditions.The growth, sensitivity to WD, and first-year productivity of irrigated plants from the Bragantina cultivar were evaluated, employing an irrigation system with automatic management. The plants were cultivated in plastic pots installed in the field for 391 days using emitters with different flow rates (2.2 [T1], 3.3 [T2], 4.3 [T3], and 5.3 L h -1 [T4 -control]). Fresh weight of the leaves, stems, and shoots, and dry weight of the leaves, stem, roots, and shoots as well as the total dry weight of the plant, were evaluated. Productivity was determined by evaluating the grains and spikes from a single harvest. Yield results and the actual versus maximum evapotranspiration rate for the entire growing season was used for calculating the Ky coefficient. Despite 1,346 mm of rainfall, the irrigation system was activated 165 times, distributing a mean volume of 19.0 (T1), 28.5 (T2), 37.1 (T3), and 45.8 L per plant (control). All traits were negatively affected by the WD, and the Ky values obtained (from 1.72 to 2.96) indicate the high sensitivity of black pepper to WD. In general, the spikes produced with at least 81 % of the crop water demand were larger and more numerous than those subjected to inferior treatments. WD occurring during the flowering stage severely hampers the size, weight, and quality of the spikes and grains of black pepper.

show abstract

Section: Methodsmentioning

confidence: 99%

Yield response factor (Ky) and initial growth in black pepper in a tropical environment

Carvalho

Teles

Cruz³

et al. 2023

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…This was achieved by using the simplified irrigation controller (SIC), proposed by [ 36 ], which operates in response to soil/substrate water tension and is regulated by the level difference between a ceramic micro-cup (sensor) and a pressure switch. This device has been used in irrigation management of different crops [ 37 , 38 ] and in the production of seedlings of forest species [ 23 , 24 ].…”

Section: Methodsmentioning

confidence: 99%

“…Among the native species of the Atlantic Forest, one of the most degraded biomes in Brazil [ 23 ], Dalbergia nigra (Jacarandá-da-bahia) stands out, which has been the target of inadequate exploitation due to its natural durability and high market value [ 30 ], being considered as at high risk of extinction [ 31 ]. The species belongs to the successional group of late secondary species [ 32 ], giving it better growth in intermediate levels of shading.…”

Section: Introductionmentioning

confidence: 99%

Production of forest seedlings using sewage sludge and automated irrigation with ozonated cattle wastewater

Silva

Mendonça²,

Conforto³

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

The large volume of effluents generated by intensive cattle production can become an environmental problem, requiring solutions that combine treatment and disposal of reuse water. The quality of cattle wastewater (CWW) treated by ozonation, the water requirement and its effect on the growth of seedlings of Dalbergia nigra cultivated with sewage sludge were determined under different light conditions. The study was carried out in a split plot scheme with 2 shading levels (0%—C1, and 49.4% attenuation—C2) and 3 types of irrigation water (control–T1, 1 h ozonation–T2, and 2 h–T3), with 4 repetitions. Direct sowing was realized into 280 cm3 tubes which were irrigated by drip irrigation with automatic management. The height and collar diameter were measured every 21 days, and at the end of the nursery phase, and the Dickson quality index (DQI) and irrigation water productivity (WPir) were determined. In addition, seedlings were transplanted in a forest restauration area (FRA) of Atlantic Forest, with height and diameter monitoring for 200 days. With ozonation, there was an increase in pH and a reduction in electrical conductivity, total solids and turbidity in the CWW, allowing its use for irrigation of forest seedlings. The maximum volumes of water applied were 2.096 and 1.921 L plant-1, with water supply T2 and T1, respectively, and coverages C1 and C2. In these conditions, the seedlings reached DQI of 0.47 and 0.17, and WPir of 2.35 and 1.48 g L-1, respectively. The initial vegetative growth of the seedlings planted in the FRA was benefited by the nutrients provided by the CWW treated. Therefore, the use of sewage sludge and CWW treated has the potential to produce forest seedlings, reducing the release of waste and effluents into the environment.

show abstract

“…Taller plants have an advantage in areas with vegetation competing for light; however, tall seedlings can have a higher sensitivity to wind and rain when growth is not accompanied by an increase in stem diameter (Grossnickle & MacDonald 2018). Also Bueno et al (2020) produced taller plants under higher irrigation depths. However, we observed that seedling height depended mainly on substrate characteristics, which was not evaluated by the authors.…”

Section: Seedling Growthmentioning

confidence: 99%

“…Maximum growth is achieved when the allocation to photosynthetic tissues is maximized, although it must be considered that dry mass importance lies not only in the photosynthetic process but also in nutrient storage and during photosynthesis (Bravo Baeza et al 2019, Kumarathunge et al 2019. Bueno et al (2020) observed that increasing water supply can fail in improving seedlings development, which suggests the importance to know the requirements of the species during seedling production. If low water volumes are applied diregarding the proper maintenance of water in the container, stomata may close at higher temperatures, impairing photosynthesis and, consequently, plants growth and Tab.…”

Section: Seedling Growthmentioning

confidence: 99%

Composted sewage sludge as an alternative substrate for forest seedlings production

Gabira¹,

Silva²,

Bortolheiro³

et al. 2021

iForest

View full text Add to dashboard Cite

The production of forest seedlings with adequate morphological and physiological characteristics is essential for the success of plantations. Substrates and irrigation are the major factors determining seedlings' growth. Substrates made of urban and agricultural residues are a sustainable alternative to peatbased substrates. In this study, we evaluated how composted sewage sludge substrates affect the growth and gas exchange in seedlings of Cedrela fissilis Vell. Seedlings were produced under daily irrigation depths of 6, 9, and 12 mm, and on different substrates. The substrates were based on sewage sludge composted with Eucalyptus bark or sugarcane bagasse, and a commercial substrate based on peat, involving a double factorial design with 12 treatments (3 irrigation depths × 3 substrates). Both physical and chemical characteristics of substrates were analyzed, and morphological traits and gas exchanges of seedlings were measured. Sewage sludge-based substrates presented different characteristics according to the material it was mixed. Eucalyptus bark provided higher bulk density (0.19 g cm -3 ) and lower total porosity (75%) to the substrate, while sugarcane bagasse increased macroporosity up to 60%. Seedlings produced in sewage sludge-based substrates presented a height up to 17.8 cm and stem diameters of between 8.39-10.29 mm. Higher shoot and root dry mass was obtained in sewage sludge-based substrates with irrigation depth of 9 mm, which were 3.71 and 2.01 g, respectively. Photosynthetic carbon assimilation varied between 2.26 and 3.23 µmol CO2 m -2 s -1 , and water use efficiency varied from 2.058 to 3.395 µmol CO2 (mol H2O) -1 , with the highest values being obtained in seedlings produced in sewage sludge-based substrates with irrigation depth of 6 mm. Our results demonstrate that sewage sludgebased substrates are an efficient alternative to commercial peat-based substrates for seedling production.

show abstract

Water requirement and growth indicators of forest tree species seedlings produced with automated irrigation management

Cited by 7 publications

References 29 publications

Yield response factor (Ky) and initial growth in black pepper in a tropical environment

Yield response factor (Ky) and initial growth in black pepper in a tropical environment

Production of forest seedlings using sewage sludge and automated irrigation with ozonated cattle wastewater

Composted sewage sludge as an alternative substrate for forest seedlings production

Contact Info

Product

Resources

About