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  • Open Access

    ARTICLE

    Effects of Nitrogen Exponential Fertilization on Growth and Nutrient Concentration of Hydrangea macrophylla Seedlings

    Xueying Wang1, Yonghong Hu2,3, Fiza Liaquat4, Xianquan Zhang2,3, Kang Ye2,3, Jun Qin2,3,*, Qunlu Liu1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.2, pp. 395-407, 2022, DOI:10.32604/phyton.2022.017981 - 26 September 2021

    Abstract Slow growth rate restricts the development and growth of seedlings due to nutrients deficiency or nutrient imbalance. Exponential fertilization can enhance the internal nutrient reserves in seedlings at the nursery-stage and strengthen their resistance to adverse conditions. In this study, nitrogen requirements for producing Hydrangea macrophylla ‘Hanatemari’ that robust seedlings, nutrient dynamics, biomass and growth, was examined utilizing exponential fertilization. The potted seedlings were fertilized with urea under exponential regime at rates of 0.5, 1.5 and 2.0 g nitrogen/plant (EF1, EF2, and EF3), respectively. In addition, an unfertilized group treated with equal volume of deionized water… More >

  • Open Access

    ARTICLE

    Analysis of Growth and Productivity of Green Chickpea Using Nitrogen and Phosphorus Fertilization

    Maricela Apáez-Barrios1, José Alberto Salvador Escalante-Estrada2, Patricio Apáez-Barrios1,*, Yurixhi Atenea Raya-Montaño3, Juan Carlos Álvarez-Hernández1

    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1193-1203, 2021, DOI:10.32604/phyton.2021.014567 - 27 April 2021

    Abstract Chickpea contains high levels of protein, vitamins and minerals. Acceptable chickpea yield is the result of meeting nitrogen and phosphorus requirements. The effect of appropriately meeting such requirements reflects on growth and can easily be evaluated using growth analysis. This research determined: (a) The effect of nitrogen and phosphorus fertilization on phenology, net assimilation rate, number of green leaves, leaf area, leaf area index and leaf area duration; (b) Green chickpea yield and number of pods due to fertilization; and (c) The combination of nitrogen and phosphorus fertilization that yields the most net revenue. Nitrogen… More >

  • Open Access

    ARTICLE

    Soil Fungal Community Structure Changes in Response to Different Long-Term Fertilization Treatments in a Greenhouse Tomato Monocropping System

    Xiaomei Zhang, Junliang Li, Bin Liang*

    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1233-1246, 2021, DOI:10.32604/phyton.2021.014962 - 27 April 2021

    Abstract Greenhouse vegetable cultivation (GVC) is an example of intensive agriculture aiming to increase crop yields by extending cultivation seasons and intensifying agricultural input. Compared with cropland, studies on the effects of farming management regimes on soil microorganisms of the GVC system are rare, and our knowledge is limited. In the present study, we assessed the impacts of different long-term fertilization regimes on soil fungal community structure changes in a greenhouse that has been applied in tomato (Solanum lycopersicum L.) cultivation for 11 consecutive years. Results showed that, when taking the non-fertilizer treatment of CK as a… More >

  • Open Access

    ARTICLE

    Integrated Fertilization Regimes Boost Heavy Metals Accumulation and Biomass of Sedum alfredii Hance

    Kangning Zhou1, Yingying Zhang1, Jiasen Wu1, Chunying Dou1,2, Zihao Ye1, Zhengqian Ye1,3,*, Weijun Fu1,3,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1217-1232, 2021, DOI:10.32604/phyton.2021.014951 - 27 April 2021

    Abstract

    The hyperaccumulator Sedum alfredii Hance (S. alfredii) may be employed for zinc (Zn) and cadmium (Cd)-polluted soil remediation. However, the low phytoremediation efficiency, related to the low biomass production, limits its use with that purpose. In this experiment, nitrogen (N), phosphorus (P), and potassium (K) fertilizers, and organic manure were applied to investigate the phytoremediation ability of S. alfredii. Hydroponic and pot experiments were conducted using Zn-Cd polluted soil. The hydroponic experiment indicated that appropriate fertilizer application could increase (p < 0.05) the amount of accumulated Zn and Cd in S. alfredii. When N supply ranged from 0.5 to 2.5

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  • Open Access

    ARTICLE

    Addition of peroxiredoxin 6 (PRDX6) to IVF fertilization medium maintains motility and longevity of human spermatozoa

    TIECHENG SUN1,#, YANDONG ZHANG1,#, JIANHUA LI3,#, HONG YU1, LINGLI SONG1, XINPING SUN1, XI CHEN2,*, LI TIAN1,2,*

    BIOCELL, Vol.45, No.3, pp. 705-710, 2021, DOI:10.32604/biocell.2021.014694 - 03 March 2021

    Abstract This study aims to investigate the protective effects of peroxiredoxin 6 on the total motility and progressive motility of human spermatozoa. Semen samples with normal parameters were collected from 23 males and supplemented with different concentrations of peroxiredoxin 6. All the semen samples were measured according to the WHO 5th manual, and the motile spermatozoa were extracted using IVF fertilization medium supplemented with different peroxiredoxin 6 concentrations. Total motility and progressive motility were observed at different timepoints of culture at room temperature. After peroxiredoxin 6 supplementation, all groups had a significant increase in total motility… More >

  • Open Access

    ARTICLE

    Interaction of Acaena elongata L. with Arbuscular Mycorrhizal Fungi under Phosphorus Limitation Conditions in a Temperate Forest

    Yasmin Vázquez-Santos1, Yuriana Martínez-Orea1, Javier Álvarez-Sánchez1, Noé Manuel Montaño2, Sara Lucía Camargo-Ricalde2, Silvia Castillo-Argüero1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 605-619, 2021, DOI:10.32604/phyton.2021.014208 - 07 February 2021

    Abstract The aim of this study was to analyze the performance of Acaena elongata colonized by arbuscular mycorrhizal fungi (AMF) to different phosphorus (P) concentrations, as a measure of AMF dependency. A. elongata, is a species from soils where P availability is limited, such as temperate forests. Our research questions were: 1) How do different P concentrations affect the AMF association in Acaena elongata, and 2) How does the AMF association influence A. elongata’s growth under different P concentrations? A. elongata’s growth, P content in plant tissue, AMF colonization and dependency were measured under four P concentrations: control (0 g P kg−1More >

  • Open Access

    REVIEW

    Gene expression of granulosa and cumulus cells: The prospect in predicting the quality and developmental competence of oocytes in vitro maturation

    BICHUN ZHAO1, XUEQING WU2,*, YITONG YUAN1, YUANTAO GAO1, XIAO LI2, RUOCHEN DU1, SUMING XU2, RUXIN ZHANG1, CHUNFANG WANG1,*

    BIOCELL, Vol.44, No.4, pp. 487-499, 2020, DOI:10.32604/biocell.2020.011638 - 24 December 2020

    Abstract In vitro maturation (IVM), a promising assisted reproductive technology (ART), has been evolving in clinical trials and applications. There is a huge potential demand for IVM in clinical practice because it reduces the stimulation of gonadotropins to patients and provides evidence for the safety of neonatal birth. Unfortunately, the maturation rate of oocytes in vivo is not as high as it is in vivo due to a different microenvironment. Moreover, there are still controversies in predicting the developmental capability of oocytes in IVM. The granulosa cells (GCs) and cumulus cells (CCs), closely surrounding the oocytes, play a critical… More >

  • Open Access

    ARTICLE

    Responses of C:N:P stoichiometry of plants from a Hulunbuir grassland to salt stress, drought and nitrogen addition

    Wang XG1, Wuyunna1*, CA Busso2, YT Song1, FJ Zhang1, GW Huo1

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 123-132, 2018, DOI:10.32604/phyton.2018.87.123

    Abstract Chemical elements, such as carbon (C), nitrogen (N) and phosphorus (P), are major limiting nutrients in arid and semiarid grasslands and their stoichiometry (C:N:P) is a very important ratio to determine. In addition, it is critical to understand how plant stoichiometry responds to multiple environmental factors at the species level. In this study, we conducted a greenhouse experiment to investigate the effects of salt stress (4 g NaCl/kg soil), drought (35% of the soil water holding capacity) and N addition (10 g N/m2), as well as their interactions, on C, N and P concentrations and C:N:P… More >

  • Open Access

    ARTICLE

    Effect of gibberellic acid on postharvest of sunflower and its potassium fertilization in alkaline soil

    Díaz-López E1, A Morales-Ruíz1, A Olivar-Hernández1, HR Bravo-Delgado2, JM Loeza-Corte3

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 18-24, 2018, DOI:10.32604/phyton.2018.87.018

    Abstract Sunflower is a crop that is used as ornamental, oleaginous, forage, and currently as a bioremediation plant, of hard water affected soils. For this reason, the main objective of this investigation was to study the effect of potassium fertilization on yield under field conditions, and the effect of gibberellic acid (GA3), at postharvest of inflorescences. Two experiments were established, under field and laboratory conditions. In the field experiment, four levels of potassium, 0, 50, 100 and 150 kg/ha were evaluated, under a randomized complete block design and four replicates (4×4) = 16 experimental units. The variables… More >

  • Open Access

    ARTICLE

    Comparative effectiveness of two phosphorus sources for wheat in southwestern Buenos Aires (Argentina)

    Ron MM, T Loewy

    Phyton-International Journal of Experimental Botany, Vol.86, pp. 68-73, 2017, DOI:10.32604/phyton.2017.86.068

    Abstract In the southwest of Buenos Aires Province (Argentina) nitrogen (N) and phosphorus (P) deficiencies are important wheat yield limiting factors. The objective of this paper was to report on the comparative effectiveness of diammonium phosphate (DAP) and triple superphosphate (TSP) in the area covering a range of soils and years. Between 1983 and 1992, 13 experiments were carried out in farmer’s fields. Soils were classified as Ustolls and Udolls. The design of the experiments was of complete randomized split blocks. Horizontal treatments were P-sources (DAP and TSP) and rates (0 to 135 kg/ha). Vertical treatments… More >

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