Open Access
ARTICLE
Herrera-Parra E1,2, J Ramos-Zapata1, J Cristóbal-Alejo3, J Tun-Suarez3, A Reyes-Ramírez3
Phyton-International Journal of Experimental Botany, Vol.87, pp. 7-13, 2018, DOI:10.32604/phyton.2018.87.007
Abstract The root knot nematode Meloidogyne spp. is an important
endoparasite limiting the cultivation of horticultural species
and affecting the plants of at least 3000 species, including grasses,
vegetables, ornamentals, fruit and forest. The aim of this study was
to estimate the potential of three species of Trichoderma as antagonists
of M. incognita in plants of Capsicum chinense under greenhouse
conditions. A bioassay was established with plants of C. chinense previously
inoculated with Trichoderma spp. and transplanted to pots
with sterile substrate; the plants were subsequently inoculated with
300 infective second-stage larvae (J2) and 1000 larvae eggs of M.
incognita. A… More >
Open Access
ARTICLE
Barresi O1,2, VM Chiocchio1,2, RS Lavado2
Phyton-International Journal of Experimental Botany, Vol.87, pp. 14-17, 2018, DOI:10.32604/phyton.2018.87.014
Abstract Previous studies in soils of the Pampas region indicate
the prevalence of calcium phosphates within the very complex mix
of phosphorus (P) compounds in the soils. We studied the changes
in P fractions in a punctual situation in the Pampas region. The sampling
was carried out in a farm located near the city of Junín (-34.585;
-60.9589) and the soil was Junín series Typic Hapludoll. The farm
was devoted to grazing and sporadic crops, but from the last 30 years
changed to continuous agriculture. At no time fertilization matched
nutrients removal by crops. The soil P fractions were determined using… More >
Open Access
ARTICLE
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 evaluated were agronomic and… More >
Open Access
ARTICLE
Zafar-ul-Hye M1, A Nasir1, M Aon1, S Hussain1, M Ahmad2, I Naz1
Phyton-International Journal of Experimental Botany, Vol.87, pp. 25-31, 2018, DOI:10.32604/phyton.2018.87.025
Abstract Abiotic stresses like salt stress and soil compaction are
responsible for increased ethylene production which may adversely
affect crop growth. A field experiment was conducted to evaluate
the response of seed inoculation with ACC-deaminase containing
rhizobacteria (Pseudomonas fluorescens and Pseudomonas syringae) in
the presence of recommended or half of a recommended rate of inorganic
fertilizers at different growth stages of fodder maize in a
compacted saline-sodic soil. At both fertilizer rates, seed inoculation
with P. fluorescens and P. syringae significantly improved all growth
parameters over the control treatment. After 30, 60 and 75 days of
sowing, treatment with recommended NPK… More >
Open Access
ARTICLE
Jianar A, JH Yuan, YF Yang
Phyton-International Journal of Experimental Botany, Vol.87, pp. 32-39, 2018, DOI:10.32604/phyton.2018.87.032
Abstract Ulmus macrocarpa Hance can form monodominant
woodlands in the semiarid Keerqin sandy lands, China. Methods of
sampling at meter intervals from the bases of trees at the woodland
edges and isolated trees, respectively, were employed along vertical
sections in different directions. Using statistical methods based on
the density function of the Weibull distribution, the patterns of seed
dispersal and the spatial expansion response of U. macrocarpa, which
is a typical anemochorous plant, were analyzed. Although as an effect
of the wind direction varying owing to the monsoon, there were differences
in the degree of dispersal of seeds in terms of… More >
Open Access
REVIEW
Li QK1, J Tang2, T Wang3, D Wu2, CA Busso4, RF Jiao2, XJ Ren2
Phyton-International Journal of Experimental Botany, Vol.87, pp. 40-50, 2018, DOI:10.32604/phyton.2018.87.040
Abstract Fresh water is a valuable nonrenewable resource and
plays an important role in maintaining economic and social development.
Considering its large population and consumption potential,
water resource deficits will certainly not allow a sustainable development
of basic industries in China in the near future. Application
of sewage irrigation, to some extent, was regarded as an alternative
way to solve the problem of agricultural water shortage in some areas
(such as North China). However, accompanied with an extensive
implementation of sewage irrigation, some problems with sewage
irrigation became gradually obvious in agriculture, especially those
related with pollution and destruction of farmlands.… More >
Open Access
ARTICLE
Ithurrart LS1,2, CA Busso1,2, YA Torres1,3, DV Peláez1,2,3, H Giorgetti4, G Rodríguez4, ML Ambrosino2,5
Phyton-International Journal of Experimental Botany, Vol.87, pp. 51-59, 2018, DOI:10.32604/phyton.2018.87.051
Abstract Plant competition for soil resources is common in
semiarid rangelands. Plants have various, alternative mechanisms to
deal with soil resource acquisition. They include (1) length, weight
and proliferation of roots, (2) root length density, and (3) root colonization
by arbuscular mycorrhiza. In rangelands of Argentina, plants
are exposed to herbivory after natural fires. As a result, knowledge
on how these disturbances impact root traits is important for outlining
guidelines focused on rangeland management and improvement.
Our aim was to analyze the effects of defoliation after a controlled
burning on root traits (1) to (3) on two preferred (Poa ligularis and… More >
Open Access
ARTICLE
Gálvez Muñoz YA1, E Martínez Moreno2, S Ramírez Vera2, L Latournerie Moreno3, JM Lesher Gordillo1, G Castañón Nájera1*
Phyton-International Journal of Experimental Botany, Vol.87, pp. 60-67, 2018, DOI:10.32604/phyton.2018.87.060
Abstract The research was conducted with the aim to identify
the variability in situ of wild and semi-wild morphotypes of Capsicum
spp. that were found growing in different places of Tabasco
and the north of Chiapas States. Morphotypes included “Amashito”
(five types), “Pico de paloma” (two types), “Garbanzo”, “Ojo de sapo”,
“Ojo de cangrejo”, “Colmillo de lagarto” and “Corazón de pollo”.
Such characterization is important because there is an extensive variability
of forms cultivated in the country, resulting from a wide range
of agroecological diversity as well as diverse forms, colours, flavors
and sizes that constitute a valuable collection of genes… More >
Open Access
ARTICLE
Chel-Guerrero LD1, R Gómez-Cansino2, SL Gúzman-Gutierrez3, MG Campos-Lara4, E Saury-Duch1, F Díaz de León Sánchez5, R Reyes-Chilpa6, JA Mendoza-Espinoza7
Phyton-International Journal of Experimental Botany, Vol.87, pp. 68-71, 2018, DOI:10.32604/phyton.2018.87.068
Abstract The objective of this study was to investigate extracts
from the peels of Annona squamosa L. (purple sugar apple), Annona
reticulata L. (custard apple), Chrysophyllum cainito L. (green
star apple), and Melicoccus bijugatus Jacq. (mamoncillo), as potential
sources of anti-HIV-1 agents. Methanolic extracts from the peels
of the aforementioned tropical fruits were obtained by maceration.
Antiviral activity was evaluated through HIV-1 RT inhibition by
extracts, using a non-radioactive immuno/colorimetric assay (Lenti
RT Activity Assay, Cavidi Tech). Assay was performed according to
the protocol provided by the manufacturer. Extracts from the peels
of A. squamosa, A. reticulata, and C. cainito showed… More >
Open Access
ARTICLE
Villa-Hernández JM1, B García-Ocón2, E del C Sierra-Palacios2, C Pelayo-Zaldivar3, F Díaz de León-Sánchez1, LJ Pérez-Flores1, JA Mendoza-Espinoza2
Phyton-International Journal of Experimental Botany, Vol.87, pp. 72-78, 2018, DOI:10.32604/phyton.2018.87.072
Abstract Mexico bears witness to a long-standing tradition in
the use of plants for medicinal purposes; nevertheless, standardized
methodological approaches for the proper identification of these are
still needed. The problem is especially noticeable during the validation
of ingredients in herbal preparations, as so many of them are sold as
powders. It is for these reasons that the present study aims to compare
the results of classic taxonomical assessments with those obtained
using more modern molecular techniques (e.g. PCR-amplified 18S
ribosomal RNA gene analysis) in one ethnobotanical case-study carried
out in the “Desierto de los Leones” National Park in Mexico City,… More >
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