Cerna-Chávez E¹, Y Martínez-Martínez², J Landeros-Flores¹, L Aguirre-Uribe¹, V Sánchez-Valdes¹, M Cepeda-Siller¹, O Hernández-Bautista², YM Ochoa-Fuentes^*1

Phyton-International Journal of Experimental Botany, Vol.85, pp. 256-261, 2016, DOI:10.32604/phyton.2016.85.256

Abstract Bemisia tabaci (Gennaadius) biotype B is one of the most important pests due to the number of hosts and economic losses it produces. Its control is based on the application of chemicals, which has led to resistance problems. However, the host may also influence the induction of resistance to pesticides. Therefore, the present study evaluated the susceptibility of populations of B. tabaci biotype B developed indifferent hosts to three insecticides belonging to different toxicological groups. Bemisia tabaci biotype B populations were collected and reared in six different hosts (three crops and three associated weeds: Solanum lycopersicum, Solanum nigrum, Phaseolus vulgaris,… More >

Perissé P¹, R Lovey², ML Molinelli¹, M Scandaliaris²

Phyton-International Journal of Experimental Botany, Vol.83, pp. 275-281, 2014, DOI:10.32604/phyton.2014.83.275

Abstract Cologania broussonetii (Balb.) DC. stands out as valuable perennial, native forage that grows in northwestern Argentina, Cordoba hills and San Luis Province. The objectives of this study were to establish the vegetative and reproductive structures in function of the strategies and survival tactics of Cologania broussonetii. The specimens were collected in the Pan de Azúcar loaf mountain, Córdoba, and in the experimental plots of the FCA, UNC, and were then deposited in the Herbarium ACOR and in the Seed Collection. Seedlings were obtained from germination assays. Cross section cuts were performed on the survival structures of adult plants, and on… More >

Orrabalis C^1,2, H Gorostegui^1,2, E Calandri¹, C Guzmán¹

Phyton-International Journal of Experimental Botany, Vol.83, pp. 117-125, 2014, DOI:10.32604/phyton.2014.83.117

Abstract We evaluated the possibility of making jam (product A) and simile sweet potato jam (product B) from the edible pulp of the fruits of Geoffroea decorticans. The first step was the chemical characterization of the flour (pulp) highlighting their carbohydrate (85.6%), protein (9.4%) and mineral (4.2%) concentrations. Sucrose (29.5%), glucose (3.80%) and fructose (5.30%) levels were quantified using gas chromatography. Contents of protein (5.7%), minerals (3.4%), dietary fiber (0.97%), sucrose (46.8%), glucose (1.9%) and fructose (2.4%) were very good in jam. The simile sweet potato jam had low calories (140 Kcal/100g) and provided protein (4.6%). During the 12-month-storage period, the… More >

Pascualides AL y NS Ateca

Phyton-International Journal of Experimental Botany, Vol.82, pp. 313-319, 2013, DOI:10.32604/phyton.2013.82.313

Abstract Crotalaria juncea L. (Fabaceae) is an annual herbaceous species native to India. Their seeds have polymorphism in the seed coat color and different seed sizes. Seeds were grouped according to their seed coat color into uniform (dark gray seeds) and variegated (brown mottled seeds), to evaluate the vigour of C. juncea seed morphotypes. They were also classified into small (< 5mm length) and big seeds (>5 mm length). The 1000 seed weight, germination percentage, length and seedling dry weight, electrical conductivity and field emergence were evaluated. The results showed that uniform seeds had greater weight than those variegated of the… More >

Martín Montiel DC¹, SM Pérez de Bianchi¹, A Etcheverry¹, C Camardelli², M Alemán¹, T Figueroa¹

Phyton-International Journal of Experimental Botany, Vol.81, pp. 215-220, 2012, DOI:10.32604/phyton.2012.81.215

Abstract We studied the growth habit and root anatomy on two species of the Macroptilium genera, Fabaceae. These species, potential forages, are native to the Northwest Provinces in Argentina. The aims of this paper were to determine the survival capacity of the study species relating its growth habit and persistence with morphological and anatomical features. Root samples were collected and cut using either a microtome or by hand, at varying distances from the root tip. Cuts were examined under a light microscope, and with scanning electron microscopy (SEM) using staining techniques. Macroptilium bracteatum and M. erythroloma are perennial herbs. Aerial parts… More >

Menezes LCCR de¹, MN Rossi²

Phyton-International Journal of Experimental Botany, Vol.80, pp. 153-160, 2011, DOI:10.32604/phyton.2011.80.153

Abstract After a fire event, germination of seeds with hard coats can be enhanced. In the present study, we investigated whether germination of Mimosa bimucronata (DC.) Kuntze (Fabaceae) seeds, which present hard coats, is increased after fire, even though these trees usually occur in damp areas, where fire is a transient event. Fire events were manipulated in trays filled with soil covered with different amounts of dry grasses, characterizing three treatments: a) 0g (control group); b) 300g, and c) 450g of dry grass. Burning treatments were applied to seeds positioned either on the soil surface or buried in the soil. Germination… More >

Abozeid A^1,2, Y Liu¹, J Liu¹, ZH Tang¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 306-317, 2017, DOI:10.32604/phyton.2017.86.306

Abstract The genus Vicia L. belongs to the tribe Vicieae of the Fabaceae family. The genus includes about 190 species, from which about 40 species have economic importance. Some of them are food crops, but more than a dozen are forage plants. In this study, leaves of Vicia species from China, USA and Argentina were examined using stereo-microscopy and light microscopy. We determined macro- and micro-morphological characteristics that could be of taxonomic use. Forty eight characteristics of each taxon were determined including petiole and tendril length; leaflets number, length, width, shape, apex, base; blade surface, trichome shape, type, base and length;… More >

Turuelo NM¹, DR Pérez²

Phyton-International Journal of Experimental Botany, Vol.87, pp. 260-264, 2018, DOI:10.32604/phyton.2018.87.260

Abstract In arid and semi-arid ecosystems, increasing and irreversible degradation in areas of high conservation value has prompted the search for various solutions, such as rehabilitation and ecological restoration. To implement these strategies, it is essential to solve critical issues affecting the establishment of plants in the field and the production of seedlings in nursery gardens. In the present work, the following pre-germination treatments were evaluated for the species Senna arnottiana and S. kurtzii, endemic to the Patagonian steppe (Payunia): (1) Immersion in water at 80 °C for 5 minutes; (2) Immersion in water at 80 °C for 10 minutes; (3)… More >

Vázquez Núñez E¹, S Awate², MC Carrasco Monrroy³

Phyton-International Journal of Experimental Botany, Vol.87, pp. 216-224, 2018, DOI:10.32604/phyton.2018.87.216

Abstract The effect of scarification methods and silver nanoparticles on plantlets growth were tested on seeds of plants belonging to the Fabaceae family (Prosopis laevigata, Acacia farnesiana and Erythrina americana), which are predominant species in semi-arid ecosystems in Mexico. The scarification methods consisted in using coarse sand paper and two different concentrations of sulphuric acid (H₂SO₄ 98% and H₂SO₄ 50%); immersion of seeds in distilled water was used as a control. The percentage of germination was calculated and the Kotowski´s coefficient was determined. After scarification, the seeds were immersed in silver nanoparticles solutions at different concentrations i.e., 100 mg/L, 500 mg/L… More >

A. Cruz-Estrada^1,2, E. Ruiz-Sánchez², I.L. Medina Baizabal¹, E. Balam-Uc¹ and M. Gamboa-Angulo^1,*

Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 161-170, 2019, DOI:10.32604/phyton.2019.05809

Abstract The development of plant-derived products to control Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) is an urgent need for production of horticultural crops. Plant extracts and essential oils of several species of the genus Eugenia (Myrtaceae) have shown insecticidal activity. In southern Mexico, leaf extracts from Eugenia winzerlingii showed nematicidal effect but its insecticidal properties have not been explored. Therefore, the objective of this study was to evaluate the insecticidal effect of aqueous and organic extracts from E. winzerlingii leaves on B. tabaci egg, nymph and adult stages, and else to explore its nursery propagation. Then, extracts of this species were obtained… More >