Ileana Gatti

Rosario National University | UNR · Cátedras de Mejoramiento vegetal y producción de semillas

A pea breeding program to increase production in quantity and quality was started in 2005 in the College of Agrarian Sciences (FCA), National University of Rosario (UNR). The first steps were to gather an active collection of germplasm from around the world and to analyze genetic variability through morpho-agronomic and molecular traits in order to...

Conventional breeding can be complemented by different strategies that increase the efficiency of the methodologies and the current rate of increase in yields in order to meet demand. The use of molecular markers with the aim of developing linkage maps of the species, the use of Blup (Best Linear Unbiased Prediction) for an efficient selection of p...

Lentil (Lens culinaris Medik.) is a self-pollinating diploid (2n=2x=14) species belonging to the Fabaceae family. It is one of the oldest crops known, with 8,000 to 9,000 years of history and it is among the earliest domesticates from the Near East Fertile Crescent. The seeds have high nutritional value. This crop is an interesting substitute to wh...

Peas are an inexpensive nutrient source. Basic information about variation in physicochemical composition is required to manage breeding programs and postharvest operations effectively. Different properties were measured in seeds from 16 promising pea genotypes to study variability between lines, degree of genetic parameters, and associations among...

Abstract. Pulses form an important component of the human diet, provide animal feed, and replenish soil fertility through biological nitrogen fixation. However, pulse breeding is a time consuming process. Most of the traditional breeding programs take 10–15 years to release an improved cultivar. In the breeder’s equation, a model of the expected ch...

Biofortification refers to an approach to increase micronutrient concentrations in the edible parts of plants with increased bioavailability to the human population. Conventional, agronomic and transgenic breeding methods can be used to develop these biofortified crops, offering sustainable and cost‐effective strategies. Pea has long been recognize...

In pea breeding is important to shorten the generation cycles to obtain homozygosity quickly. Doubled haploid technology is important to attain this purpose and androgenesis is the most promising tool for induction of haploids in legumes. Commercial pea varieties have been described as recalcitrant to this approach but very little is known regardin...

Plant phenotyping links genomics with plant ecophysiology and agronomy. It is usually performed by non-destructive, automated and image-based technology and generates information for efficient and searchable digital characterization of crop that can be performed during routine, periodical regeneration of accessions in germplasm collections. In the...

Breeding in lentil involves hybridization followed by different selection methods and requires 10 years to obtain a cultivar, as only one field generation per year can be produced. To shorten the breeding time it is essential to use biotechnological methods such as in vitro embryo culture combined with SSD method since only one seed is enough to pr...

Legumes represent a vast family of plants including more than 600 genera and more than 13,000 species. Among them, the term “pulses” refers only to dried seed crops, excluding those grown mostly for oil extraction (like soybean), where dried peas, edible beans, lentils, chickpeas, cowpea, mungbean, blackgram and pigeonpea are the most common cultiv...

Efficient parent's selection and heterosis prediction in pea have been of great interest for breeders in order to determine with anticipation, those crosses capable of producing a high frequency of transgresive recombinant lines. The combining ability is the most frequently used criteria to select parents, though its estimation is costly and time-c...

We propose the use of SRAP and SSR markers along agronomic or morphological traits in genotypes’ differentiation during breeding programs. 25 F5 recombinant inbred lines (microsperma and macrosperma) with good quality characteristics and high yield and a tester were used. All materials were sowed in a randomized block design with 3 replications, at...

The objective of this research was to investigate the use of heterosis and estimates of the general combining ability (GCA) and specific combining ability (SCA) for yield and the yield-related traits for identifying suitable parents and forming heterotic groups for pea- breeding programs. Seventy-six F1 hybrids derived from crosses between nineteen...

In breeding programs, a large number of F₂ individuals are required to perform the selection process properly, but often few such plants are available. In order to obtain more F₂ seeds, it is necessary to multiply the F₁ plants. We developed a rapid, efficient and reproducible protocol for in vitro shoot regeneration and rooting of seeds using 6-be...

We characterized 13 accessions of dry peas of different origins from various growing regions in Argentina, based on three replications of 20 plants cultivated in 2009 and 2010 in a greenhouse, with the objective of selecting those with favorable characteristics for use in breeding programs. Significant differences were found for length and width of...

Despite the continuous breeding that has been conducted with asparagus (Asparagus officinalis L.) since the beginning of the last century, there is little information on parameters for predicting direct and indirect selection response. Yield traits for blanched asparagus production were studied along a two-year period in a half-sib family populatio...

O objetivo principal deste trabalho foi determinar as variáveis que melhor explicam a variação entre indivíduos dentro da população de aspargos originária da cultivar Argenteüil e selecionar plantas superiores para compor novas populações. O ensaio, composto por 1280 plantas, foi instalado no campo experimental da Facultad de Ciencias Agrarias de l...

To estimate the heritability values of characters frequently used as selective criteria, 32 half-sib families obtained from selected plants of three populations of the asparagus variety Argenteüil were evaluated in a randomized complete block design. The following characters were measured: days to emergence of the first spear, number and diameter o...

Los materiales de espárrago (Asparagus officinalis L.) utilizados hasta el momento por los productores son introducciones realizadas por las casas semilleras y han sido seleccionados para satisfacer requerimientos del mercado de los sitios de origen. El objetivo del siguiente trabajo es evaluar siete poblaciones de espárrago (P1 a P7), con el fin d...

In order to establish an efficient selection criterion the variability in three asparagus populations was evaluated defining the most important yield components and analysing its evolution along three growing seasons. The yield components, coefficient of variation (CV) and the proportion of plants contributing to 80% of the total yield were estimat...

Los productores de espárrago del cinturón hortícola de Rosario disponen de materiales genéticos importados desde el hemisferio norte que han sido seleccionados en condiciones diferentes a las del país, o bien reproducen poblaciones existentes sin mejorar; es necesario en este contexto lograr materiales de adaptación local que presenten buenas carac...