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In Argentina, the business of certified soybean seed production shows underperformance; therefore, a highly efficient production system is necessary to be able to compete in this field. In this respect, factors affecting competitiveness such as the sensitivity of some cultivars to the delay in harvest time and to the damage resulting from this delay have not been evaluated in terms of seed qua ...

SUBJECT: environment exposition; mechanic damage; soja; exposición al ambiente; calidad de semillas

POSTED TO: Agriscientia [1668-298X]

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The aim of this study was to compare coinoculation with Bradyrhizobium japonicum and Azospirillum brasilense with inoculation with Bradyrhizobium japonicum on nodulation, growth, and N accumulation in the soybean crop in field conditions. Two field tests were carried out for two years with different hydric conditions in areas not previously cultivated with soybean. The treatments were: control ...

SUBJECT: coinoculación; soja; coinoculation; bradyrhizobium japonicum; azospirillum brasilense

POSTED TO: Agriscientia [1668-298X]

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The aim of this work was to obtain haploid plants of bread wheat through wide hybridization with maize. The experimental material included ten bread wheat hybrids (female parent) and one population of maize (pollen donor). Two assays were carried out in two different seasons (summer and winter). Wheat spikes were manually emasculated, each spike was pollinated twice with fresh pollen of maize ...

SUBJECT: wide hybridization; maize pollen; hibridación interespecífica; plantas haploides; bread wheat

POSTED TO: Agriscientia [1668-298X]

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The estimation of leaf biomass, usually performed by alometric relations, is important for the interpretation of primary production and for the assessment of ecological interactions between trees and the rest of the components in a wood vegetation. The goal for the present work was to adjust and to select allometric models for the estimation of leaf biomass Prosopis flexuosa based on dendromet ...

SUBJECT: peso hojas; sapwood; stem diameter; alometría; diámetro del tallo

POSTED TO: Agriscientia [1668-298X]

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The search for forage legumes to improve animal production is a priority in the centre-north of Argentina. This study aims to determine the variability for morphological traits related with the early vegetative growth in populations of two native forage legumes, Desmanthus virgatus y D. paspalaceus and analyze their field establishment in two environments. Variation was found in all of the tra ...

SUBJECT: desmanthus; establecimiento; native forages; establishment; forrajeras nativas

POSTED TO: Agriscientia [1668-298X]

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Legume species have galactomannans on the endosperm of their seeds, their principal commercial sources are guar, carob and tara gums, used particularly in the food, beverage and pharmaceutical industry. The aim of this work was to evaluate the technological potential of galactomannan obtained from the endosperm of algarrobo (Prosopis sp.) seeds for its use in the food industry. To this purpose ...

SUBJECT: galactomannan; galactomanano; potencial alimentario; prosopis sp.; food potential

POSTED TO: Agriscientia [1668-298X]

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Over a three-year period, 13 genotypes of Bromus catharticus Vahl. (prairie grass) were evaluated in a completely randomized design with six replications to estimate statistical and genetic parameters. Individual plants were analyzed in relation to the following characters: number of tillers, number of panicles, number of spikelets per spike, total number of seeds and number of full seeds, wei ...

SUBJECT: bromus catharticus; genetic variability; componentes de la varianza; heredabilidad; genetic improvement

POSTED TO: Agriscientia [1668-298X]

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Nowadays, composts are widely used for incorporation into substrates and in some cases they present alkaline pH, causing nutritional problems. Therefore, it is suggested that a correction should be made prior to its use or after its preparation. Some alternatives to decrease pH values are mixing compost with acid materials or adding sulphur, ferrous sulphate or other sulphur compounds. The aim ...

SUBJECT: substrate; improvers; compost; sustrato; enmienda

POSTED TO: Agriscientia [1668-298X]

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Regularly, quality analyses of Argentine wheat production are performed in order to know its industrial quality. These analyses are insufficient to compare effects of cultivar, location, year and their interactions. The aim of this work is to quantify the effects of these factors. Eight cultivars were grown in four Argentine locations during three cropping seasons. Ten quality traits were eval ...

SUBJECT: efecto localidad; cultivar effect; interacción cultivar x ambiente; efecto cultivar; efecto año

POSTED TO: Agriscientia [1668-298X]

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One of the available tools for monitoring soil dryness and excessive wetness is the Standarized Precipitation Index (SPI). Three years ago, a methodology for monitoring and monthly statistical prediction of the SPI in the Pampas region of Argentina was put into operation. The aim of this paper is to evaluate these forecasts. First, the SPI calculation methodology is described, and so are those ...

SUBJECT: excesos hídricos; pronóstico; wetness excess; sequías; pampas region

POSTED TO: Agriscientia [1668-298X]

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