Resultados de búsqueda - "A"

Species and phenotypic distribution models reveal population differentiation in Ethiopian indigenous chickens por Getachew, Fasil, Komen, Hans, Dessie, Tadelle, Worku, Setegn, Hanotte, Olivier H., Bastiaansen, John W.M.

“…The relationship between quantitative traits and a few of the environmental variables associated with habitat suitability is non-linear. …”
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Estimates of the economic cost caused by five major reproductive problems in dairy animals in Assam and Bihar, India por Deka, Ram Pratim, Magnusson, Ulf, Grace, Delia, Randolph, Thomas F., Shome, R., Lindahl, Johanna F.

“…The study covered 954 dairy animals in Bihar and 1348 dairy animals in Assam that were selected using a multi-stage random sampling method. The costs were calculated as the sum of income losses and expenditures incurred. …”
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Assessment of Rice Inbred Lines and Hybrids under Low Fertilizer Levels in Senegal por Kanfany, G., El-Namaky, R., Ndiaye, K., Traoré, K., Ortíz, R.

“…The five treatments used in this study were (a) the control (without any fertilizer application), (b) 37.5–4.4–8.3 kg N–P–K ha−1, (c) half of recommend application in Senegal (75–8.75–16.5 kg N–P–K ha−1), (d) 112.5–13.3–24.8 kg N–P–K ha−1, and (e) the recommended application in the country (150–17.5–33 kg N–P–K ha−1). …”
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Improving estimation of weed suppressive ability of upland rice varieties using substitute weeds por Saito, Kazuki, Futakuchi, K.

“…Two rice varieties (Aus 257, which was also included in 14 varieties tested, and IR 1552, a purple-leaved rice) and cowpea (cv. KVx396-18) were tested as substitute weeds, and compared with natural weed infestation. …”
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Anticipatory climate governance in Southeast Asia por Peou, Rathana, Muiderman, Karlijn, Vervoort, Joost M., Verkuil, Loes

“…Anticipating the possible impacts of climate change has become a key global focus. Scenarios and many other methods and tools are used today to imagine climate futures and develop strategies for realizing new futures while governing climate change. …”
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Assessment of sal (Shorea robusta) forest phenology and its response to climatic variables in India por Nandy, S., Ghosh, Surajit, Singh, S.

“…SOS and length of season (LOS) were found to be the key phenology metrics to distinguish the different types of sal forests in India and temperature has a greater influence on SOS than rainfall in sal forests of India.…”
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Potential Impacts of Seed-Sharing Agreements and their Implications for Seed Policies in South and Southeast Asia por Janaiah, Aldas

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An approach to reduce greenhouse gas emission in Chinese dairy farms through improving production efficiency por Wei, Wang, Zijlstra, Jelle, Shengli, Li

“…Livestock farming, especially dairy farming is a significant contributor of the emission of GHG. …”
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Population structure and genetic diversity analyses of common bean germplasm collections of East and Southern Africa using morphological traits and high-density SNP markers por Nkhata, Wilson, Shimelis, Hussein, Melis, Rob, Chirwa, Rowland, Mzengeza, Tenyson, Mathew, Isack, Shayanowako, Admire

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Social cost-benefit analysis of investment in rehabilitation of multipurpose small reservoirs in northern Ghana using an ecosystem services-based approach por Bekoe, J., Balana, Bedru, Nimoh, F.

“…The findings reveal that private financial returns from irrigated crops have negative net present value (NPV) and an internal rate of return (IRR) lower than the cost of capital, implying a lack of economic incentive for private investors in their rehabilitation. …”
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Implications of water abstraction on the interconnected Central Rift Valley Lakes Sub-Basin of Ethiopia using WEAP por Goshime, D. W., Haile, Alemseged Tamiru, Rientjes, T., Absi, R., Ledesert, B., Siegfried, T.

“…New hydrological insights for the region: WEAP simulations show a total water demand of 102.3 Mm3 under the recent development pathway that increases by 46% and 118% for short-term and long-term development pathways, respectively. …”
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Local to continent-scale variation in fitness and heritability in common bean (Phaseolus vulgaris) cultivars por MacQueen, Alice H., Khoury, Colin K., Miklas, Phillip N., McClean, Phillip E., Osorno, Juan M., Runck, Bryan C., White, Jeffrey W., Kantar, Michael, Ewing, Patrick M.

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Endophytic non-pathogenic Fusarium oxysporum-derived dual benefit for nematode management and improved banana (Musa spp.) productivit por Kisaakye, J., Fourie, H., Haukeland, Solveig, Kisitu, J., Nakimera, S., Cortada Gonzales, L., Subramanian, S., Coyne, D.

“…Tissue cultured plantlets of cooking banana cultivar Mbwazirume and dessert banana cultivar Grande Naine were inoculated by root drenching with a suspension of 1.0 × 107 spores mL−1 of the endophytes on three occasions, separated 4 weeks apart, before transplanting into the field. …”
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Performance of elite maize genotypes under selected sustainable intensification options in Kenya por Rusinamhodzi, Leonard, Makumbi, Dan, Njeru, J.M., Kanampiu, F.K.

“…Results showed that maize genotypes and cropping systems had a significant effect on yield, but the effect of tillage was not significant. …”
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Comparing Empirical with Perceived Trends in Wildlife, Livestock, Human Population and Settlement Numbers in Pastoral Systems: The Greater Maasai Mara Ecosystem, Kenya por Kariuki, Juliet B., Ogutu, Joseph O., Kifugo, Shem C., Senteu, Jully S., Ojwang, Gordon, Olff, Han

“…About one third of the respondents perceived an increase in the number of people living within conservancies and around the reserve and considered this indicative of a developing and thriving community. Notable discrepancies between the empirical and perceived trends were often more apparent than real and collectively suggest that incentives that promote wildlife are evidently viewed as less attractive than those that encourage increasing human and livestock numbers. …”
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Returns to food and agricultural R&D investments in Sub-Saharan Africa, 1975–2014 por Pardey, Philip G., Andrade, Robert Santiago, Hurley, Terrance, Rao, Xudong, Liebenberg, Frikkie

“…To gain insight into what could be driving this trend, this article updates, summarizes and reassesses the published evidence on the returns to African agricultural R&D. Based on a compilation of 113 studies published between 1975 and 2014 spanning 25 countries, the reported internal rates of return (IRRs) to food and agricultural research conducted in or of direct consequence for sub-Saharan Africa averaged 42.3%py. …”
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Yields and yield gaps in lowland rice systems and options to improve smallholder production por Awio, T., Senthilkumar, Kalimuthu, Dimkpa, C.O., Otim-Nape, G.W., Struik, P.C., Stomph, T.J.

“…We conclude that different yield gap levels can be exploited by smallholder farmers in lowland rice systems as RAP, FIP, and RAP+NPK allow yield gap reduction, although fertilization poses a risk to profit at current rice and fertilizer prices. …”
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Investigation of systemic movement patterns of Cassava Brown Streak ipomoviruses in selected cassava varieties por Ceasar, G.

“…Cassava is among the important food security crops in Sub Saharan Africa and a major staple food for more than 800 million people in the developing world. …”
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The transcriptional cell atlas of testis development in sheep at pre-sexual maturity por Wu, Y., Guo, T., Li, J., Niu, C., Sun, W., Zhu, S., Zhao, H., Qiao, G., Han, M., He, X., Lu, Z., Yuan, C., Han Jianlin, Liu, J., Yang, B., Yue, Y.

“…Sheep testes undergo a dramatic rate of development with structural changes during pre-sexual maturity, including the proliferation and maturation of somatic niche cells and the initiation of spermatogenesis. …”
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Gender-focused analysis and opportunities for upgrading within Vietnam’s smallholder pig value chains por Nga Nguyen Thi Duong, Hung Pham-Van, Ha Duong-Nam, Huyen Nguyen-Thi-Thu, Trung Ninh-Xuan, Sinh Dang-Xuan, Unger, Fred, Hung Nguyen-Viet, Grace, Delia

“…Data were gathered from a survey of 1,014 actors in different nodes along the chain, and the results showed that both men and women participated in all nodes of the VCs. …”
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