Effects of water salinity and organomineral fertilization on leaf composition and production in Passiflora edulis (original) (raw)
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African Journal of Agricultural Research, 2016
The monitoring of plants growth constitutes an important activity during the crops formation, including the yellow passion fruit. In this direction, an experiment was carried out in Remigio, Paraiba State, Brazil, to evaluate the effects of saline water irrigation, bovine biofertilizer and potassium on yellow passion fruit growth plants and soil salinity. Treatments were arranged in randomized block with three replications and 12 plants per plot, using factorial design 2 x 2 x 2, relative electrical conductivity of irrigation water of 0.35 to 4.00 dS m-1 , in soil with and without biofertilizer and potassium chloride (KCl) conventional and coated with polymers. The variables studied were electrical conductivity of the soil at depths of 0-20 and 21-40 cm, plant height at 30 days after transplanting (DAT), period of the seedlings transplanting to pruning of the main haste and lateral branches, number of productive branches and stem diameter at 30, 90, 150, 210 and 270 DAT. The interaction between water salinity, biofertilizer and potassium increased the soil salinity. The biofertilizer and the slow release of KCl increased the plant growth in height, anticipating the main stem pruning and productive side branches, productive branches number and stem diameter of the plants.
The increase in the concentration of salts in the soil has caused reduction in the growth of the plants because these ions cause, among other negative effects, changes in the ability of plants to absorb water. So, the objective of this paper was to evaluate the influence of salinity on the development of seedlings of yellow passion fruit (Passiflora eduli f. flavicarpa Deg). They were used vessels with a capacity to 2.9 dm ³ and five levels of salinity: control = 0,42dS/m -2,0 -4,0 -6,0 and 8dS/m. The results have showed that the total dry matter, dry matter of the aerial part and number of leaves have showed some significant differences among treatments. Thus, the higher the Saline lower, the absorption of water and nutrients and carbon accumulation into yellow passion fruit seedlings.
Journal of Agricultural Science, 2019
The objective of this study was to evaluate the effects of the biofertilizers (common and enriched) in substrate irrigated with saline waters on the quality of the seedlings evaluated by the phytomass from yellow Passiflora edullis. In this sense, an experiment was carried in a greenhouse at the Center of Agricultural Sciences and Biodiversity CCAB/UFCA, Crato-CE, from October/2017 to March/2018. The substrate used was a material of the first 20 cm to depth of a Red Yellow Latosol. The experimental design was completely randomized in a factorial scheme of type 5 × 3, with three replications, referring to the electrical conductivity values of the irrigation water: 0.5; 1.0; 2.0; 3.0 and 4.0 dS m-1, in the soil without the bovine biofertilizer; in treatments with common biofertilizer and, evaluated in the soil with enriched biofertilizer, conditioned in black polyethylene bags with it a maximum capacity of 5.0 kg, totaling 60 treatments. The fermented bovine biofertilizer after ...
Growth and Development of Passion Fruit Seedlings under Irrigation with Salt Water and Biofertilizer
Journal of Experimental Agriculture International, 2019
The yellow passion fruit is a plant climbing botanically that has a good geographical distribution in Brazil, with more than 150 species in the country. The presence of salts in soil and irrigation water is one of the main obstacles in agriculture in the world, caused by low rainfall and high evapotranspirative rates causing the salts to accumulate in the soil. However, alternatives have been sought to try to mitigate such limitations of seedling production, such as the use of biofertilizers in the soil. In this way, the objective was to evaluate the growth and development of yellow passion fruit seedlings under the effects of irrigation water salinity and the use of bovine biofertilizer on the substrate. An experiment was carried out in a greenhouse in the Center for Agrarian Sciences and Biodiversity, from october/2017 tomarch/2018, in county of Crato-Ceara, Brazil. The substrate used was the first 20 cm material of a yellow Red Argisol. The experimental design was completely rand...
High salinity in the root zone affects the growth of many plant species. soil salinity can lead to reduced emergence and low growth of seedlings. The objective of this study was to evaluate the growth of banana passion fruit (P. tripartita var. mollissima (Kunth) L. H. Bailey) seedlings under saline stress. The salinity effect on growth and dry matter (DM) production of banana passionfruit seedlings was evaluated under greenhouse conditions at Tunja / Colombia. Plantlets were grown in plastic bags filled with soil and 0; 20; 40 and 80mM NaCl were added to the soil, which induced the following different electrical conductivity levels: 0.70; 2.38; 3.47 and 5.49 ds m -1 respectively. salt was added gradually to the soil, up to the mentioned concentration. Results indicate significant differences among treatments. Plants of the control treatment without salt had higher number of leaves, total stem + shoot length, specific leaf weight, leaf area and DM in relation to salt treated plants. Leaf area and DM production were drastically reduced by salinity, especially by 80mM NaCl. The DM partitioning was also affected by salinity, reducing dry matter accumulation in leaves and increasing the DM in petioles + stems + shoots and roots. The findings from the study indicate that banana passionfruit seedlings are moderately sensitive to salt stress.
Seedlings of yellow passion fruit in soils degraded by salts treated with bovine biofertilizer
Científica, 2015
Salinity and soil sodicity promote high losses in the quality of seedlings of most commercially important plants, including yellow passion fruit. An experiment was conducted in a greenhouse environment to evaluate the effects of bovine biofertilizer in the emergence and morphological and physiological variables of yellow passion fruit seedlings in an extremely sodic soil and in an extremely saline soil. The treatments were arranged in a randomized block design with three replications and six plants per plot, using a 2 × 2 factorial design referring to a saline-sodic soil and a saline soil with and without bovine biofertilizer for an evaluation in three periods: 40, 60 and 80 days after sowing. The biofertilizer was diluted in a non-saline water (ECw dS = 0.31 m-1) in a 1:1 ratio and applied to the soil surface only once, 24 hours before sowing, with a volume corresponding to 10% of the substrate volume. The seedlings were irrigated with non-saline water, providing an evapotranspirated volume every 24 hours based on the average value obtained by the process of weighing the units of each treatment. From the results, the biofertilizer more efficiently mitigated the salinity of the soil sodicity. In the treatments without organic inputs, seedlings did not emerge in the saline-sodic soil. In the saline soil, seedlings that emerged did not survive the damaging effects of salinity. Despite attenuating the degenerative effects of salinity on plants, the bovine biofertilizer contributes to the increase of saline content in the soil.
2020
This study aimed to evaluate the gas exchanges and growth of the purple passion fruit cultivar ‘BRS Rubi do Cerrado’ as a function of the salinity levels of the irrigation water and nitrogen fertilization. The research was conducted in pots adapted as drainage lysimeters, placed within a plant nursery, using a Regolithic Neosol of sandy texture, in the municipality of Pombal-PB, Brazil. A randomized block design was used, testing five levels of electrical conductivity of irrigation water (0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1) associated with four doses of nitrogen (50, 75, 100, and 125% of the recommendation). The irrigation water salinity above 0.3 dS m-1 compromised the leaf area and the relative water content of the purple passion fruit ‘BRS Rubi do Cerrado’. High doses of nitrogen enhance the deleterious effects of irrigation water salinity on stomatal conductance, transpiration, internal CO2 concentration, CO2 assimilation rate, number of leaves, stem diameter, and height of purp...
High salinity in the root zone affects the growth of many plant species. soil salinity can lead to reduced emergence and low growth of seedlings. The objective of this study was to evaluate the growth of banana passion fruit (P. tripartita var. mollissima (Kunth) L. H. Bailey) seedlings under saline stress. The salinity effect on growth and dry matter (DM) production of banana passionfruit seedlings was evaluated under greenhouse conditions at Tunja / Colombia. Plantlets were grown in plastic bags filled with soil and 0; 20; 40 and 80mM NaCl were added to the soil, which induced the following different electrical conductivity levels: 0.70; 2.38; 3.47 and 5.49 ds m -1 respectively. salt was added gradually to the soil, up to the mentioned concentration. Results indicate significant differences among treatments. Plants of the control treatment without salt had higher number of leaves, total stem + shoot length, specific leaf weight, leaf area and DM in relation to salt treated plants. Leaf area and DM production were drastically reduced by salinity, especially by 80mM NaCl. The DM partitioning was also affected by salinity, reducing dry matter accumulation in leaves and increasing the DM in petioles + stems + shoots and roots. The findings from the study indicate that banana passionfruit seedlings are moderately sensitive to salt stress.
Revista Ceres
RESUMO A utilização da técnica de enxertia em maracujazeiros tem sido uma estratégia promissora para o desenvolvimento de cultivares tradicionais de maracujazeiros que, por sua vez, apresentam raízes suscetíveis a vários patógenos do solo. Contudo, não se conhece o efeito desta técnica sobre as trocas gasosas, as relações hídricas e a eficiência fotoquímica em plantas desta espécie. O objetivo deste trabalho foi estudar a capacidade fotossintética, as relações hídricas e o crescimento de maracujazeiros propagados por semente (PPS) e propagados por enxertia (PPG), submetidos à limitação da disponibilidade de água no solo. O presente estudo foi realizado em casa de vegetação, utilizando mudas de Passiflora edulis f. flavicarpa e mudas enxertadas [Passiflora edulis f. flavicarpa (enxerto) e Passiflora mucronata (porta-enxerto)] cultivadas em potes de 3,5 dm3. Aos 37 dias após o transplantio (DAT), foi suspensa a irrigação em metade das plantas propagadas por sementes (PPSDS, plantas pr...
Water Salinity and Initial Development of Yellow Passion Fruit
Scientia …, 2002
Considering the lack of information on salt tolerance of passion fruit (Passiflora edulis) seedlings, a study was carried out to evaluate the effects of water salinity on the vigor and initial growth in a completely randomized design with 8 levels of electrical conductivity of irrigation water (EC w), varying from 1.0 to 8.0 dS m-1. Salinity delayed the germination process, but relative reduction was observed only above EC w 4.43 dS m-1. Seedling vigor and growth decreased with increasing salinity, however, water at 4 dS m-1 resulted in 85% of vigor and seedlings with more than 50% growth in comparison to the lowest salinity treatment. Based on soil salinity, the passion fruit may be considered as 'moderately tolerant' to salinity during the initial phase.