Resultados de búsqueda - drawl~

Effects of cassava brown streak disease and harvest time on two cassava mosaic disease-resistant varieties in Eastern Democratic Republic of the Congo por Casinga, C.M., Shirima, R.R., Kangela, A., Wosula, E.N., Bashizi, B., Ugentho, H.U., Nabahungu, L.N., Monde, G., Bamba, Z., Kumar, L., Legg, J.P.

“…CMD can be effectively controlled using resistant varieties; however, currently, there are no cassava varieties that exhibit durable resistance to CBSD. As the deleterious effects of CBSD become more pronounced with the maturity of the cassava, we assessed the potential benefits of early harvesting on mitigating the impact of CBSD on the performance of two improved CMD-resistant cassava varieties, Nabana (MM 96/4653) and Sawasawa (MM 96/3920). …”
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Pathogenic variation in Xanthonomas campestris pv. phaseoli, the causal agent of common bacterial blight in Phaseolus beans por Opio, A.F., Allen, David J., Teri, J.M.

“…Despite this apparent gene-for-gene interaction, resistance to common bacterial blight in P. vulgaris, derived from earlier use of P. acutifolius, has apparently remained non-specific and essentially durable. It is suggested that, since levels of resistance already available within P. vulgaris provide adequate protection, bean breeders should resist the temptation to incorporate new complete resistance from P. acutifolius as it would risk destabilizing the host bacterium relationship by introducing race-specific resistance that is more likely to prove transient in agriculture.…”
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Influence of soil fertility on waterlogging tolerance of two Brachiaria grasses por Jiménez Serna, Juan de la Cruz, Cardoso Arango, Juan Andrés, Arango Londoño, David, Fischer, Gerhard, Rao, Idupulapati M.

“…The genotypes were grown with two different soil fertilization levels (high and low) and under well-drained or waterlogged soil conditions for 15 days. …”
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Interaction of soybean and Phakopsora pachyrhizi, the cause of soybean rust por Hartman, G.L., Hill, C.B., Twizeyimana, M., Miles, M.R., Bandyopadhyay, Ranajit

“…Many of the resistance genes have become ineffective over time in different geographic areas following their deployment into soybean production. The search for more durable soybean rust resistance will include research on non-host and/or engineered resistance.…”
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Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis por Omoigui, L.O., Kamara, A.Y., Ajeigbe, Hakeem A., Akinwale, R.O., Timko, M.P., Oyekunle, M., Bello, L.L.

“…The presence of different virulent races within the parasite population contributes to significant genotype × environment interaction, and complicates breeding for durable resistance to Striga. A 3-year study was conducted at three locations in the dry savanna agro-ecology of Nigeria, where Striga gesnerioides is endemic. …”
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Cassava mash dewatering parameters por Kolawole, O.P., Agbetoye, L.A.S., Ogunlowo, A.S.

“…The tank had 7mm holes drilled at the base to allow the flow of juice. The volume of juice was measured using a measuring cylinder and the stopwatch measured the time. …”
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Reaction of selected common bean genotypes to physiological races of Phaeoisariopsis griseola occurring in Kenya por Wagara, I. N., Mwang’ombe, A.W., Kimenju, J.W., Buruchara, Robin Arani, Kimani, P.M.

“…The results of this study indicate that different bean genotypes have varying levels of resistance to angular leaf spot that can be pyramided into appropriate background to provide durable resistance.…”
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Horizontal resistance: core to a research breakthrough to combat Striga in Africa por Kim, S.K.

“…This included the development of a simple field infestation technique, the discovery of durable resistance genes, genetic studies of resistance genes and the formation of many resistant varieties (hybrids and synthetics) with high grain quality, high grain and stover yields and a combined resistance to major biotic and abiotic stresses. …”
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Maize storage practices and their influence on aflatoxin contamination in stored grains in four agroecological zones in Benin, West Africa por Hell, K., Cardwell, K., Sétamou, M., Poehling, H.

“…Beninese farmers often changed their storage structures during the storage period, transfering the maize from a drying or temporary store to a more durable one. Most of the farmers complained about insects damaging stored maize. …”
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Multi-environment multi-QTL association mapping identifies disease resistance QTL in barley germplasm from Latin America por Gutiérrez, Lucia, Germán, Silvia, Pereyra, Silvia, Hayes, Patrick M., Pérez, Carlos A., Capettini, Flavio, Locatelli, Andres, Berberian, Natalia M., Falconi, Esteban E., Estrada Zúniga, Rigoberto, Fros, Dario, Gonza Cusipuma, Víctor Antonio, Altamirano Vasquez, Hernan, Huerta Espino, Julio, Neyra Valdez, Edgar, Orjeda, Gisella, Sandoval Islas, Sergio, Singh, Ravi, Turkington, Kelly, Castro, Ariel J.

“…Since fungicide application is not an economically or environmentally sound solution, the development of durably resistant varieties is a priority for breeding programs. …”
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Environmental and agronomic determinants of hairy vetch (Vicia villosa Roth) seed yield in rainfed temperate agroecosystems por Renzi Pugni, Juan Pablo, Garayalde, Antonio Francisco, Brus, Jan, Pohankova, Tereza, Smýkal, Petr, Cantamutto, Miguel Angel

“…Among the wide range studied, it was found that only poorly drained soils reduced HV seed yield. Crop protection practices, through the application of insecticide plus fungicide, and the axial threshing harvest system were the most important management tools determining high HV seed yield (> 600 kg ha−1). …”
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Carbon footprint of yerba mate (Ilex paraguariensis) value chain in Misiones Province (Argentina) por Chifarelli, Diego Hernan, Gruber, Lorena, Azzini, Lapo, Nicese, Francesco Paolo, Giordani, Edgardo

“…This study aimed at assessing the environmental impact, namely of CO2 equivalent (CO2eq.) emissions, of the YM value chain while identifying environmental hotspots along the production chain, from nursery up to transport. A cradle-to-wholesale approach was carried out, considering as the main functional unit 1 kg of commercial YM produced in Misiones Province and transported to Buenos Aires, the largest YM market in the world. …”
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Efecto de sistemas de labranza contrastantes sobre algunas propiedades de un molisol de Tres Arroyos bajo distintos usos previos por Manso, Marina Lucrecia, Studdert, Guillermo, Forjan, Horacio Jose, San Martino, Silvina

“…El objetivo del trabajo fue evaluar el efecto de diez años de agricultura continua bajo siembra directa (SD) y labranza convencional (LC) con diferente historia previa, sobre propiedades físicas y bioquímicas en la capa arable de un Paleudol Petrocálcico. En un ensayo de larga duración y en una situación no disturbada (parque) se evaluaron densidad aparente (DAP), resistencia a la penetración (RP), estabilidad estructural (EE) y carbono orgánico total, particulado (COP) y, asociado a la fracción mineral (COA). …”
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Population structure of the fungus Sclerotinia sclerotiorum in common bean fields of Argentina por Aban, Carla Luciana, Taboada, Gisel María, Spedaleti, Yamila Andrea, Maita, Efraín, Galvan, Marta Zulema

“…These results suggest the occurrence of both modes of reproductive behaviour, clonal and recombining, compromising the durability of management strategies for white mould disease in common bean cultivars.…”
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Biotiska faktorers inverkan på markstrukturen por Krüger Persson, Sanna

“…The quality and amount of organic matter from the roots and litter affect which organisms that live in the soil, and influence the durability of aggregation of soil particles. Soil management, in particular soil tillage and crop selection, have a large impact on soil structure and the organisms that live in the soil. …”
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Bedömning av kunders uppfattningar och konsekvenser för strategisk utveckling por Hesselman, Jonas

“…In order to develop services and technology, Fredells need to find a way to quickly resolve the low level of trust from their clients and create extensive and durable relations with them.…”

Slitundersökning för jordbearbetning och sådd por Rehn, Claes, Staaf, Niklas

“…In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk harrows. …”
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Markpackning och regenerering av markstruktur por Alexandersson, Susanne

“…One central focus that the study deals with is what importance earthworms have in soil compaction processes. …”

The ecological footprint of swedish sugar consumption por Holmstrand, Karin

“…Land is a scarce resource that is demanded for many purposes, reason why it is relevant to question how the arable land is used in the food production. Some commodities, including refined sugar, are not essential for the human diet, but are still consumed in higher quantities than are healthy for us. …”

Effects of unsown patches in autumn-sown fields on Skylark territory densities : a study on skylark plots made in central Sweden por Jansson, Mattis

“…However, the extent by which SPs contribute to improve breeding opportunities in Swedish arable farmland is unknown. There are structural differences in the agricultural landscapes of Sweden and Great Britain, with a higher relative proportion of spring sown cereals in Sweden. …”