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  • Open Access


    Variability in accumulation of free proline on in vitro calli of four bean (Phaseolus vulgaris L.) varieties exposed to salinity and induced moisture stress

    Cárdenas-Avila1*, ML, J Verde-Star1, RK Maiti2, R Foroughbakhch-P1, H Gámez-González1, S Martínez-Lozano1, MA Núñez-González1, G García Díaz1, JL Hernández-Piñero1, MR Morales-Vallarta1

    Phyton-International Journal of Experimental Botany, Vol.75, pp. 103-108, 2006, DOI:10.32604/phyton.2006.75.103

    Abstract This paper reports the genotypic variability in the accumulation of proline on the in vitro calli of bean cultivars exposed to induced water and salinity stress. Remarkable variations in the proline content were found among bean cultivars exposed to both stress factors. More >

  • Open Access


    Influence of heat stress on growth and physiological activities of potato (Solanum tuberosum L.)

    Naz N1, F Durrani1, Z Shah2, NA Khan1, I Ullah1

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 225-230, 2018, DOI:10.32604/phyton.2018.87.225

    Abstract The progress and development of crops like potato are harmfully affected by increased heat stress throughout the world. Stress caused by increased heat adversely affects germination and seedling growth which result in a reduced crop development and yield. The present research was carried out to know the influence of heat stress on growth indices and physiological processes of potato (Solanum tuberosum L.). The heat stresses C- Control (25 °C); T1-45 °C, and T2-40 °C were applied in separate growth chambers to the plants, after 25 days from their germination. Increased heat stress considerably decreased the chlorophyll a and b pigments… More >

  • Open Access


    Growth and biochemical responses of moringa (Moringa oleifera L.) to vermicompost and phosphate rock under water stress conditions

    Abud-Archila M1, AK Espinosa-Arrioja1, T González-Soto2, VF Gutiérrez-Oliva1, V Ruíz-Valdiviezo1, D González-Mendoza2, L Rodríguez-Hernández3, FA Gutiérrez-Miceli1

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 209-215, 2018, DOI:10.32604/phyton.2018.87.209

    Abstract The aim of this investigation was to analyze the effect of vermicompost and phosphate rock on plant growth and biochemical responses of Moringa oleifera exposed to water deficit and waterlogging conditions. Treatments included 152 g of vermicompost (V) and 1.3 g of phosphate rock (PR) added to each cultivation bag. Control was prepared with 2.3 g of urea. All treatments were irrigated under different watering conditions [water deficit: irrigated at 20% water holding capacity (WHC); control (40% WHC) and waterlogging (60% WHC)]. The overall average in plant height was 90, 86 and 68 cm, whereas chlorophyll was 45, 40 and… More >

  • Open Access


    Effect of seed priming with hormonal combinations on morphological and biochemical attributes of maize seedlings

    Qayyum S1, SA Majid1, A Bibi2, A Ulfat1, K Khanum1, A Munir1, S Nisar1, S Aziz1, N Mumtaz1

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 191-197, 2018, DOI:10.32604/phyton.2018.87.191

    Abstract Maize (Zea mays L., the third most important cereal crop after wheat and rice, is the major kharif (summer) crop of rainfed areas in Pakistan. The yield per hectare and total production of maize in Pakistan is low versus an exponentially increasing population. The objective of this work was to study the interactive effects of phytohormones [Gibberellic acid (GA), Sodium nitroprusside (SNP), Abscicic acid (ABA) and kinetin (KIN)] on morphological, physiological and biochemical parameters during the germination of maize seeds. Seeds were presoaked in different hormones, separately or in combinations. Priming with GA+SNP+ABA+KIN enhanced the total fresh (TFW) and dry… More >

  • Open Access


    Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

    Mirza Hasanuzzaman1,*, Aditya Banerjee2, M. H. M. Borhannuddin Bhuyan3,4, Aryadeep Roychoudhury2,*, Jubayer Al Mahmud5 and Masayuki Fujita3

    Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 185-221, 2019, DOI:10.32604/phyton.2019.07559

    Abstract In the era of climate change, abiotic stresses (e.g., salinity, drought, extreme temperature, flooding, metal/metalloid(s), UV radiation, ozone, etc.) are considered as one of the most complex environmental constraints that restricts crop production worldwide. Introduction of stress-tolerant crop cultivars is the most auspicious way of surviving this constraint, and to produce these types of tolerant crops. Several bioengineering mechanisms involved in stress signaling are being adopted in this regard. One example of this kind of manipulation is the osmotic adjustment. The quarternary ammonium compound glycinebetaine (GB), also originally referred to as betaine is a methylated glycine derivative. Among the betaines,… More >

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