Resultados de búsqueda - "A"

Promising management strategies to improve crop sustainability and to amend soil salinity por Mishra, Ajay Kumar, Das, Rajeswari, George Kerry, Rout, Biswal, Bisworanjita, Sinha, Trisha, Sharma, Sheetal, Arora, Pooja, Kumar, Mukesh

“…By affecting 10% of the world’s total arable land, soil salinity has become a potential threat to feeding the exploding population. …”
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Narrowing maize yield gaps in the rainfed plateau region of Odisha por Peramaiyan, Panneerselvam, McDonald, Andrew J., Kumar, Virender, Craufurd, Peter, Wasim, Iftikar, Parida, Nabakishore, Pattnaik, Sanghamitra, Singh, Balwinder, Yadav, Ashok, Ajay, Anurag, Singh, Sudhanshu, Malik, Ram K.

“…This study aimed to narrow the maize yield gap using diverse agronomic and varietal interventions through field experiments over 2 years (2013–2014) in the rainfed plateau region of Odisha. As a result, maize yield increased by 0.9, 0.74, and 0.17 Mg ha−1under optimum plant population, fertilizer management, and herbicide-based weed management, respectively, over farmers’ current practices (Check). …”
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Rural development and transformation of the rice sector in Myanmar: Introduction of best management practices for sustainable rice agriculture por Wehmeyer, Helena, Malabayabas, Arelene, San, Su Su, Thu, Aung Myat, Tun, Myat Su, Thant, Aye Aye, Connor, Melanie

“…The objective of this study was to determine the socioeconomic and agronomic changes due to the adoption of BMPs between adopters and non-adopters. Using a digital survey questionnaire application to collect household data, 200 farmers in eight villages were interviewed in 2012 and 2017. …”
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Spatio-temporal analysis of water quality for pesticides and other agricultural pollutants in Deduru Oya river basin of Sri Lanka por Jayasiri, M.M.J.G.C.N., Yadav, Sudhir, Dayawansa, N.D.K., Propper, Catherine R., Kumar, Virender, Singleton, Grant R.

“…This study aims to address the knowledge gap in Sri Lanka by assessing water quality at a temporal and geospatial scale, focusing on areas with significant agricultural inputs in the Deduru Oya river basin of Sri Lanka. …”
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Evolutionary systems biology reveals patterns of rice adaptation to drought-prone agro-ecosystems por Groen, Simon C., Joly-Lopez, Zoé, Platts, Adrian E., Natividad, Mignon, Fresquez, Zoë, Mauck, William M., Quintana, Marinell R., Cabral, Carlo Leo U., Torres, Rolando O., Satija, Rahul, Purugganan, Michael D., Henry, Amelia

“…Rice (Oryza sativa) was domesticated around 10,000 years ago and has developed into a staple for half of humanity. The crop evolved and is currently grown in stably wet and intermittently dry agro-ecosystems, but patterns of adaptation to differences in water availability remain poorly understood. …”
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Profiling of 2-Acetyl-1-Pyrroline and Other Volatile Compounds in Raw and Cooked Rice of Traditional and Improved Varieties of India por Kasote, Deepak, Singh, Vivek Kumar, Bollinedi, Haritha, Singh, Ashok Kumar, Sreenivasulu, Nese, Regina, Ahmed

“…The high amount of 2-ethyl-1-hexanol was uniquely found in raw rice samples, which can be a marker compound for freshly milled rice. Along with 2-AP, butanoic acid and benzoic acid derivatives, phenylethyl alcohol, ethyl 3-hydroxybutyrate, and indole may be responsible for the overall perceived characteristic Basmati-like aroma in cooked rice.…”
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Small mammal communities, associated damage to rice and damage prevention in smallholder rice storage facilities in Sri Lanka por Htwe, Nyo Me, Sarathchandra, Siriwardana Rampalage, Sluydts, Vincent, Nugaliyadde, Lionel, Singleton, Grant R., Jacob, Jens

“…Netting of rice bags was trialled as a new measure of protection. Field experiments were performed in the three main agro-ecological zones of Sri Lanka. …”
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Unraveling regulatory divergence, heterotic malleability, and allelic imbalance switching in rice due to drought stress por Ereful, Nelzo C., Laurena, Antonio, Liu, Li-Yu, Kao, Shu-Min, Tsai, Eric, Greenland, Andy, Powell, Wayne, Mackay, Ian, Leung, Hei

“…The indica ecotypes, IR64, an elite drought-susceptible variety adapted to irrigated ecosystem, and Apo (IR55423-01 or NSIC RC9), a moderate drought-tolerant upland genotype together with their hybrid (IR64 × Apo) were exposed to non- and water-stress conditions. …”
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Crop establishment and weed control options for sustaining dry direct seeded rice production in Eastern India por Saha, Sanjoy, Munda, Sushmita, Singh, Sudhanshu, Kumar, Virender, Jangde, Hemant Kumar, Mahapatra, Ashirbachan, Chauhan, Bhagirath S.

“…Therefore, the availability of effective weed control options is critical for the success and wide-scale adoption of DSR. A field study was conducted at ICAR-National Rice Research Institute, Cuttack, India, in the dry seasons of 2015 and 2016 to evaluate the performance of three crop establishment methods and five weed control practices on weed management, productivity, profitability and energetics of dry DSR. …”
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Fertilizer responsiveness of high-yielding drought-tolerant rice in rainfed lowlands por Banayo, Niño P. M., Rahon, Raymond E., Sta. Cruz, Pompe, Kato, Yoichiro

“…Drought stress was mild in both years, with a yield reduction of 11% to 12%, and there was no significant cultivar × nutrient management interaction in yield. …”
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Intraspecific competition counters the effects of elevated and optimal temperatures on phloem-feeding insects in tropical and temperate rice por Horgan, Finbarr G., Arida, Arriza, Ardestani, Goli, Almazan, Maria Liberty P.

“…This study examines the potential for intraspecific competition to dampen the effects of optimal temperatures on fitness (survival × reproduction) of the brown planthopper, Nilaparvata lugens [BPH] and whitebacked planthopper, Sogatella furcifera [WBPH], two phloem-feeders that attack rice in Asia. We conducted a series of experiments with increasing densities of ovipositing females and developing nymphs on tropical and temperate rice varieties at 25, 30 and 35°C. …”
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Confronting genetic gains with markets: Retrospective lessons from New Rice for Africa (NERICA) in Uganda por Britwum, Kofi, Owusu, Eric S., Demont, Matty

“…We then compare the breeding priorities that would have ensued from the 2011 market evidence with the reality a decade later. Non-hypothetical auction experiments with consumers were conducted in urban Uganda in 2011 to predict potential market share and value of non-fragrant NERICA4 and fragrant NERICA1, relative to two market standards, i.e. non-fragrant Kaiso, and Supa, the most popular fragrant rice variety in the region. …”
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Investigating unproductive water losses from irrigated agricultural crops in the humid tropics through analyses of stable isotopes of water por Mahindawansha, Amani, Külls, Christoph, Kraft, Philipp, Breuer, Lutz

“…The soil in maize fields showedstronger evaporation enrichment than in rice during that time. A greaterwater loss was encountered during the wet season, with 80 % at thebeginning of the season and 60 % at its end. …”
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Broad-spectrum resistance to bacterial blight in rice using genome editing por Oliva, Ricardo, Ji, Chonghui, Atienza-Grande, Genelou, Huguet-Tapia, José C., Perez-Quintero, Alvaro, Li, Ting, Eom, Joon-Seob, Li, Chenhao, Nguyen, Hanna, Liu, Bo, Auguy, Florence, Sciallano, Coline, Luu, Van T., Dossa, Gerbert S., Cunnac, Sébastien, Schmidt, Sarah M., Slamet-Loedin, Inez H., Vera Cruz, Casiana, Szurek, Boris, Frommer, Wolf B., White, Frank F., Yang, Bing

“…Mutations were also created inSWEET14, which is also targeted by two TALes from an AfricanXoolineage. A total of five promoter mutations were simultaneously introduced into the rice line Kitaake and the elite mega varieties IR64 and Ciherang-Sub1. …”
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Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia por Kong, Kea, Hin, Sarith, Seng, Vang, Ismail, Abdelbagi M., Vergara, Georgina, Choi, Il-Ryong, Ehara, Hiroshi, Kato, Yoichiro

“…Potential yield from the experiments was 6–7 t ha−1 on Toul Samroung soil, 5–6 t ha−1 on Bakan soil, and 3–5 t ha−1 on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha−1 of N-P2O5-K2O was more than enough to achieve the best yields on any soil group. …”
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Trypanosomiasis induced reproductive wastage in West African Dwarf sheep por Akinbamijo, O.O., Reynolds, L.

“…Abortion rate was 15% in the infected ewes with a lamb mortality rate of up to 85%. Lambs born by infected dams had lower weaning weights compared with lambs from control ewes. …”
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Metabolic responses of rice source and sink organs during recovery from combined drought and heat stress in the field por Lawas, Lovely Mae F., Erban, Alexander, Kopka, Joachim, Jagadish, Krishna S.V., Zuther, Ellen, Hincha, Dirk K.

“…Correlation analysis identified several metabolites as marker candidates for the stability of grain yield or quality under conditions of combined drought and heat stress.ConclusionsThe rewatering responses of stressed plants seemed to be a combination of the reversal of stress effects and reinitiation of development after stress relief. …”
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Metabolic responses of rice cultivars with different tolerance to combined drought and heat stress under field conditions por Lawas, Lovely Mae F., Li, Xia, Erban, Alexander, Kopka, Joachim, Jagadish, Krishna S.V., Zuther, Ellen, Hincha, Dirk K.

“…Although investigating combined drought and heat stress is clearly more agronomically relevant than analyzing the effects of the single stresses, only a few studies of this stress combination, in particular under field conditions, have been published Three rice cultivars differing in drought and heat tolerance were grown in the field under control and drought conditions in 3 consecutive years. …”
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Nutrients management and planting time adaptation to climate change for wet season rice production in subtropical India por Satapathy, Sushree Sagarika, Swain, Dillip Kumar, Pasupalak, Surendranath, Herath, Srikantha

“…Using CERES model, we simulated rice grain yield for future climate scenario (A1B) during the years 2020 (2010–2039) and 2080 (2071–2099) at four selected locations of the subtropical India. …”
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Transcriptional response of rice flag leaves to restricted external phosphorus supply during grain filling in rice cv. IR64 por Jeong, Kwanho, Pantoja, Omar, Baten, Abdul, Waters, Daniel, Kretzschmar, Tobias, Wissuwa, Matthias, Julia, Cecile C., Heuer, Sigrid, Rose, Terry J.

“…Hypothesising that genes involved in remobilisation of P from leaves during grain filling would show altered expression in response to P deprivation, we investigated gene expression in rice flag leaves at 8 days after anthesis (DAA) and 16 DAA in plants that received a continuous supply of P in the nutrient solution vs plants where P was omitted from the nutrient solution for 8 consecutive days prior to measurement. …”
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