Initial Growth of Yellow Passion Fruit Under Organic Fertilization

Abstract

The production of yellow passion fruit seedlings is common among producers. Low cost techniques to maximize and reduce the cost of production with the application of cattle manure make the production of seedlings feasible. The objective of experiment was to evaluate different concentrations of cattle manure in substrate with and without liquid the biofertilizer in the production of yellow passion fruit seedlings. The experiment was carried out at the Universidade Estadual da Paraíba, Catolé do Rocha county, Paraíba state. The experimental design was completely randomized, in a 5 × 2 factorial scheme, with 5 repetitions end 3 plants per plot. The treatments consisted of five concentrations of cattle manure (0, 20, 40, 60, and 80% of the substrate volume), without and with the biofertilizer (10 mL plant-1). Sixty days after sowing, the following items were evaluated: plant height; number of leaves; root length; leaf area; leaf fresh mass; stem fresh mass; root fresh mass; aerial part fresh mass; total plant fresh mass; aerial part dry mass, and the Dickson quality index. The concentrations between 38 and 69% of composted cattle manure combined with the application of liquid biofertilizer increased the initial growth of yellow passion fruit plants, making its use feasible in the production of seedlings.

Alternative substrates and controlled-release fertilizer in the production of yellow passion fruit seedlings

“…The controlled-release fertilizer doses influenced the number of leaves of yellow passion fruit seedlings following a quadratic model of regression for all the substrates (Figure 4), so that the maximum plant height obtained was 12.3 cm at the dose of 11.91 kg m -3 of controlled-release fertilizer. The better performance of the seedlings in relation to the SDM, RDM and TDM grown on the LAF and BNP substrates fertilized with controlled-release fertilizer, can be explained by the chemical composition of these substrates, especially the pH that remained in a range where the nutrients could be made available to the seedlings (Table 2) Seedlings of yellow passion fruit submitted to organic fertilization obtained an index of 0.57 (Andrade et al, 2018) while the index ranged from 0.19 to 0.24 in different substrates (Costa et al, 2018). Yellow passion fruit seedlings grown on alternative substrates and with controlled-release fertilizer presented a SQI of 0.18 to 0.26 (Barros et al, 2017).…”

“…Number of leaves (NL) of the yellow passion fruit seedlings in function of the substrates and controlled-release fertilizer levels. LAF: lumps of acerola fruits; BNP: Brazil nut peel; CS: commercial substrate.Several studies have shown that the number of passion fruit leaves is influenced by the nutrition and substrate used(Andrade et al, 2018;Miyake et al, 2016;Fey et al, 2010;Sousa et al, 2011).It was possible to obtain passion fruit seedlings with larger number of leaves starting from 3 kg of controlled-release fertilizer incorporated with LAF, BNP and CS substrates than Cavalcante et al (2019) when producing seedlings with different organic compounds and by Barros et al (2017) after studying commercial substrate combinations with activated biochar and sawdust biochar, all supplied with 225 g Basacote® 6M and 225 g Basacote ® 3M for 150 L of substrate (equivalente to 3 kg m -3 ) and 600 g FH Eucalipto Heringer ® . A larger number of leaves reflects in a greater amount of photoassimilates that will be translocated to different parts of the plant, thereby influencing its growth and development.…”

Propriedades psicométricas de dois instrumentos para avaliação da qualidade de vida relacionada à saúde em mulheres com câncer de colo de útero

“…O tratamento das lesões pré-invasoras ou neoplasia intraepitelial cervical (NIC) é definida de acordo com o grau da lesão e poderá partir de uma simples observação até a realização de cirurgias como: a cirurgia de alta frequência, a conização e a histerectomia. Já o tratamento de carcinomas invasores, será definido mediante o estadiamento da doença e podese utilizar de cirurgia, radioterapia, braquiterapia, quimioterapia isoladamente ou a combinação dos tratamentos (37).…”