Evaluación del potencial de producción de semilla de cebolla (Allium cepa L.) cultivar eclipse L-303 en 5 fechas de siembra y 3 densidades de población en Marín, N. L.

Tesis (Maestría en Ciencias Especialidad en Producción Agrícola) UANL

Jardí m' ensenya a cultivar plantes. 'Jardín me enseña a cultivar plantas'.

Para la realización de este proyecto se ha contado con la colaboración de ASNIMO, associació de nins amb síndrome de Down de Balears, y el apoyo de la Conselleria d'Educació, Cultura i Esports del Govern Balear

El mol?? i l'Horta d'en Felip : un hort per conrear entre tots. 'El Mol?? i l'Horta d'en Felip : un huerto para cultivar entre todos'

Este itinerario did??ctico El Mol?? i l'Horta d'en Felip nace a partir de una visita a las instalaciones del molino del equipo pedag??gico del Museo Archivo Tom??s Balvey, de Cardedeu, despu??s de haber sido restaurado en el 2006. Se ha realizado un trabajo interactivo donde el escolar participa de la actividad con opiniones, ideas y conocimientos.

Cómo cultivar la reflexión y la sonrisa.

Se plantea la idea de emplear el humor como truco educativo. Para utilizar el humor en la educación se deberían por un lado, aplicar las denominadas fuentes del humor, entre las que se encuentran, los libros y la prensa, y por otro, la lengua, como recurso para utilizar frases hechas o modismos dados por el uso popular del habla. También se señala la conveniencia utilizar los nombres geográficos en tono humorístico para recordar países, ciudades, ríos, cabos, etc., a través de asociaciones de nombres y reglas nemotécnicas.

Cultivar la calidad.

A partir de la experiencia del Ayuntamiento de Pistoia, se plantean los parámetros que definen la calidad educativa de las escuelas de 0-3 y de 3-6 años de edad. El lugar donde transcurre la vida cotidiana tiene que ser un sitio que el niño ha de sentir como algo propio, familiar y seguro, en el que se vea acogido y reconocido. El modo en que se organiza el espacio, así como las características de los materiales y de los elementos decorativos, ejercen influencia sobre los comportamientos sociales y cognitivos. Se considera importante la participación entre la escuela y la familia para el crecimiento y desarrollo del niño.

La lectura es divertida : diez métodos para cultivar el hábito de lectura en los niños.

Resumen tomado de la publicación

Modesto intento de interpretación de las tasas femeninas de escolaridad.

Se plantean las causas de por qué las mujeres hacen poco o ningún uso de las posibilidades de educación formal de que disponen. Así, se establece que es la sociedad, al seguir asignando a la mujer determinados roles, la generadora de una situación contra la que los poderes públicos deben adoptar medidas de discriminación positiva. Se pretende exponer los enigmas, que plantean una serie de datos estadísticos, sobre el tema de las relaciones entre mujer y educación.

Cómo cultivar la ciudadanía cosmopolita en la Educación Superior : el caso de la Universidad Politécnica de Valencia.

Monográfico con el título: 'La Educación para el Desarrollo ante las desigualdades del siglo XXI'. Resumen basado en el de la publicación

Cultivar el amor a la vida.

El artículo forma parte de un dossier titulado: Educar con la naturaleza.

Fungicide and cultivar affect post-anthesis patterns of nitrogen uptake, remobilization and utilization efficiency in wheat

Three successive field experiments (2000/01-2002/03) assessed the effect of wheat cultivar (Consort.. Hereward and Shamrock) and fungicide (epoxiconazole and azoxystrobin) applied at and after flag leaf emergence on the nitrogen in the above-ground crop (Total N) and grain (Grain N), net nitrogen remobilization from non-grain tissues (Remobilized N). grain dry matter (Grain Dill), and nitrogen utilization efficiency (NUtE(g) = Grain DM/Total N). Ordinary logistic curves were fitted to the accumulation of Grain N, Grain DM and Remobilized N against thermal time after anthesis and used to simultaneously derive fits for Total N and NUtE(g). When disease was controlled, Consort achieved the greatest Grain DM, Total N, Grain N and NUtEg; in each case due mostly to longer durations, rather than quicker rates, of accumulation. Fungicide application increased final Grain Dill.. Grant N, Total N and Remobilized N, also mostly through effects on duration rather than rate of accumulation. Completely senesced leaf laminas retained less nitrogen when fungicide had been applied compared with leaf laminas previously infected severely with brown rust (Puccinia recondita) and Septoria tritici, or with just S. tritici. Late movement of nitrogen out of fungicide-treated laminas contributed to extended duration of both nitrogen remobilization and grain N filling, and meant that increases in NUtE(g) could occur without simultaneous reductions in grain N concentration.

Identifying seed uptake pathways: The spread of Agya amoah rice cultivar in southwestern Ghana

A study was carried out to identify the factors that contributed to the natural spread and uptake of a rainfed rice variety named Agya Amoah in the Western Region of Ghana after introduction of a small amount (0.5 kg) of seed in 1987 by a small-scale farmer. Fifteen years after its introduction over 73% of rice farmers had grown the variety in the Western Region. Initial awareness of the variety was created by information provided mainly by friends, seeing the variety grown in fields and from relatives. Seed for initial planting of the variety was purchased from other farmers by 67% of farmers, but in the most recent season 77% of farmers used their own saved seed. Annual incremental income per household from the replacement of the previously most widely grown variety with Agya Amoah was estimated to be US $282. The results show that informal systems can result in relatively fast spread and extensive uptake. Local seed systems need to be understood to design appropriate activities that are likely to lead to rapid spread and equitable distribution of introduced varieties, irrespective of characteristics such as wealth and kin.

Delaying senescence of wheat with fungicides has interacting effects with cultivar on grain sulphur concentration but not with sulphur yield or nitrogen: sulphur ratios

Winter wheat was grown in three field experiments, each repeated over two or three seasons, to investigate effects of extending flag leaf life by fungicide application on the concentration, kg ha(-1) and mg grain(-1) of nitrogen (N) and sulphur (S) as well as N:S ratio and sodium dodecyl sulphate (SDS) sedimentation volume. The experiments involved up to six cultivars and different application rates, timings and frequencies of azoxystrobin and epoxiconazole. For every day the duration to 37 % green flag leaf area (m) was extended, N yield was increased by 2.58 kg ha(-1), N per grain by 0.00957 mg, S yield by 0.186 kg ha(-1) and S per grain by 0.000718 mg. The N:S ratio decreased by 0.0135 per day. There was no evidence that these responses varied with cultivar. In contrast, the relationship between flag leaf life and N or S concentration interacted with cultivar. The N and S concentrations of Shamrock, the cultivar that suffered most from brown rust (Puccinia rccondita), increased with the extension of flag leaf life whereas the concentrations of N and S in Malacca, a cultivar more susceptible to Septoria tritici, decreased as flag leaf senescence was delayed. This was because the relationships between m and N and S yields were much better conserved over cultivars than those between m and thousand grain weight (TGW) and grain yield ha(-1). (c) 2004 Elsevier B.V. All rights reserved.

The influence of winter oilseed rape (Brassica napus ssp oleifera var. biennis) cultivar and grass genotype on the competitive balance between crop and grass weeds

Three experiments conducted over two years (2002-04) at the Crops Research Unit, University of Reading, investigated competition between autumn sown oilseed rape cultivars (Brassica napus L. ssp. oleifera var. biennis (DC.) Metzg.) and Lolium multiflorum Lam., L. x boucheanum Kunth and Alopecurus myosuroides Huds., sown as indicative grass weeds. Rape cultivar (cv.) had a substantial effect on grass weed seed return. Over the six cultivars tested, L. multiflorum spikelet production ranged from just under 400 spikelets/m(2) in the presence of cv. Winner to nearly 5800 in competition with cv. Lutin. Cultivar competitiveness was associated with high biomass, large dense floral layers and early stem extension. There was some evidence of differential competitive tolerance between rape cultivars. The results suggested that rape cultivars could be screened for competitiveness by measuring floral layer interception of photosynthetic active radiation. L. x boucheanum cultivars varied in ability to compete with rape. In the absence of inter-specific competition, spikelet density was similar for Aberecho and Polly (circa 31000 spikelets/m(2)) but when grown with rape Polly outyielded Aberecho (i.e. 12 090 and 7990 spikelets/m(2) respectively).