Alternatives substrates for production of seedlings camu-camu

Chagas, Edvan Alves; Ribeiro, Maria Isabel; Souza, Olisson Mesquita; Santos, Verónica Andrade dos; Lozano, Ricardo Bardales; Bacelar-Lima, Christinny Giselly

doi:10.4322/rca.2013.074

Cited by 10 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental design was completely randomized in a factorial 2x6, being the first factor constituted by the presence and nutritious solution absence of and the second factor for times evaluation (0, 60, 80, 100, 120 and 140 days after transplanting) repetitions with four seedlings. The plants were grown in pots polypropylene pots with 4 L of capacity, containing as a substrate a thin layer (five cm) of pebble for better drainage and completed with ORG: Organoamazon  substrate (Table 1), commercial organic compound, which according Chagas et al (2014) has in its composition (organic fertilizer 100% natural and regional, composed by cattle, horse, hen and sheep manure, aged and carbonized rice hull, peat, cane bagasse, grass clippings, galls and foliages).…”

Section: Methodsmentioning

confidence: 99%

Growth and nutritional status and quality of Khaya senegalensis seedlings

Smiderle¹,

Souza²,

Chagas³

et al. 2016

RCA

Self Cite

View full text Add to dashboard Cite

Due to the shortage of information on both mineral fertilizer and organic substrate in Khaya senegalensis, it was proposed in the current study to verify the potential of the use or not of addition of nutrient solution in the production of high quality seedlings of K. senegalensis as well as to obtain the total accumulation of macro and micronutrients in the seedlings. The experimental design was completely randomized in a factorial 2x6, being the first factor constituted by the presence and nutritious solution absence of and the second factor for times evaluation (0, 60, 80, 100, 120 and 140 days after transplanting) repetitions with four seedlings. The following growth traits (height, stem diameter and shoot and root dry mass) and seedling quality parameters (total dry mass and Dickson quality index). The addition of nutrient solution supported the increase of the determined morphological characteristics of the seedlings of K. senegalensis as well as the total accumulation of macro and micronutrients. The nutrient solution modifies the absorption dynamics of nutrients in K. senegalensis and the amount absorbed at 140 days after transplantation obeys according to the order: N>K>P>Ca>S>Mg> Fe>B>Mn>Zn>Cu. RESUMO:Em razão da escassez de informações sobre fertilizante mineral e substrato orgânico em Khaya senegalensis, propôs-se no presente estudo verificar o potencial do uso ou não de adição de solução nutritiva na produção de mudas de K. senegalensis com alta qualidade, bem como obter o acumulo total de macro e micronutrientes nas plântulas. O delineamento experimental utilizado foi o inteiramente casualizado, em esquema fatorial 2x6, sendo o primeiro fator constituído pela presença e ausência de solução nutritiva e o segundo fator pelas épocas de avaliação (0; 60; 80; 100; 120 e 140 dias após o transplantio), com quatro repetições. As plantas foram avaliadas características de crescimento (altura, diâmetro de caule e massa seca da parte aérea e radicular) e parâmetros de qualidade de mudas (massa seca total e índice de qualidade de Dickson). A adição de solução nutritiva favorece o incremento das características morfológicas determinadas das mudas de K. senegalensis, bem como no acumulo total de macro e micronutrientes. A solução nutritiva modifica a dinâmica de absorção dos nutrientes em K. senegalensis e a quantidade absorvida aos 140 DAT segue conforme à ordem: N>K>P>Ca>S>Mg >Fe>B>Mn>Zn>Cu.

show abstract

Section: Methodsmentioning

confidence: 99%

Growth and nutritional status and quality of Khaya senegalensis seedlings

Smiderle¹,

Souza²,

Chagas³

et al. 2016

RCA

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, if the aim is the in vitro propagation of a species, the obtainment of longer and more vigorous sprouts is better than a high number of small sprouts with lower capacity to regenerate or retard the multiplication process. It is noteworthy that for the production of conventional seedlings, the caçari is a rustic species and grows best in nutritionally poor substrates (Chagas et al, 2013). It is also evidenced that under the in vitro conditions, the best result for sprout length was obtained by using the culture medium with lower concentrations of nutrients, particularly the nitrogen and potassium.…”

Section: Optimum Culture Medium and Concentration For The In Vitro Rementioning

confidence: 98%

Micropropagation of caari under different nutritive culture media, antioxidants, and levels of agar and pH

Araújo¹,

Chagas²,

Garcia³

et al. 2016

Afr. J. Biotechnol.

View full text Add to dashboard Cite

The caçari (Myrciaria dubia) is a native fruit tree from Amazon with high concentrations of vitamin C. This study aimed to adjust a culture medium that meets the nutritional needs for the in vitro development of caçari, evaluating the effect of different concentrations and nutritive culture media, antioxidant, and levels of agar and pH. Three experiments were carried out in a completely randomized design: 1-woody plant medium (WPM), Murashige and Skoog (MS) and Juan, Antonio, Diva and Silvia medium (JADS) nutritive media with 25, 50, 75 and 100% concentrations; 2-pH (3.7, 4.7, 5.7 and 6.7) and agar concentrations (0, 3.5, 7.0 and 10.5 g.L-1); 3-Antioxidants [(ascorbic acid (AA), citric acid (CA), polyvinylpyrrolidone (PVP)] and concentrations (0, 100, 200, 300 mg.L-1) on the control of phenolic oxidation of stem segments. After collection, the explants were disinfested in a laminar flow chamber, dipping in 70% ethanol for 3 min and 1.5% sodium hypochlorite for 12 min, followed by three washes in distilled and autoclaved water. After disinfestation, the explants were inoculated in 15 × 125 mm test tubes containing 30 mL culture medium, according to each experiment and their respective treatments. After 90 days, the number and length of sprouts (cm) and the oxidation were evaluated. The best results were obtained using the WPM medium at a concentration of 100% with 7 g.L-1 agar, and pH adjusted to 5.7. The use of antioxidants in the tested conditions did not contribute to decrease in oxidation in explants, indicating that there is no need of adding them into the culture medium.

show abstract

“…Many factors can contribute to increases in cell ROS levels, such as extreme temperatures, water stress, and high substrate concentrations of heavy metals and salts (Chagas et al, 2013). Excess substrate salts reduce the osmotic potential of plants and cause water stress; excessive accumulation of salts in plant tissues eventually result in toxicity, causing cell membrane damage and delays in seed germination -thus reducing commercial yields (Silveira et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Metabolic imbalances in plant cells caused by substrate toxicity will result in increased ROS production, resulting in severe damage to cell membrane permeability as well as DNA and protein synthesis (Silveira et al, 2010) and leading to saline stress (Chagas et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Viability of using organic substrates according to toxicity tests and the antioxidant activities of tomato seeds and seedlings

Marcon

Rafagnin-da-Silva

Meira

et al. 2020

IJANR

View full text Add to dashboard Cite

Fortes. 2020. Viability of using organic substrates according to toxicity tests and the antioxidant activities of tomato seeds and seedlings. Int. J. Agric. Nat. Resour. Plant growth can be directly influenced by the physical, chemical, and biological characteristics of their substrates. We tested the viability of using alternative substrates derived from agroindustrial residues by evaluating their effects on tomato (Solanum lycopersicum L.) germination and growth as well as the antioxidant activities in seeds and seedlings. The extracts were classified based on their principal carbon source: cotton waste (SA); sugarcane waste (SB); napier grass (SN); tree prunings (SP); and sawdust (SS). The chemical attributes of the substrates were analyzed, the physiological characteristics of tomato seed germination were determined, and the activities of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) were measured in tomato seeds and seedlings. The extracts from tree prunings and sawdust showed the highest germination indices and root lengths, while the cotton and sugarcane waste extracts showed the lowest values for the same variables, with high pH and electric conductivity values indicating possible toxicity; increased activities of antioxidant enzymes needed to correct physiological imbalances were detected. The substrates deemed most suitable for seedling production were those derived from tree prunings and sawdust.

show abstract

Alternatives substrates for production of seedlings camu-camu

Cited by 10 publications

References 7 publications

Growth and nutritional status and quality of Khaya senegalensis seedlings

Growth and nutritional status and quality of Khaya senegalensis seedlings

Micropropagation of caari under different nutritive culture media, antioxidants, and levels of agar and pH

Viability of using organic substrates according to toxicity tests and the antioxidant activities of tomato seeds and seedlings

Contact Info

Product

Resources

About