Resultados de búsqueda - "field experiment"

Evaluation of some rice genotypes for incidence of African rice gall midge and its parasitoid (P. Diplosisae) por Ogah, E.O., Odebiyi, J.A., Omoloye, A.A., Nwilene, F.E.

“…In two consecutive years (2008/09), field experiments were conducted at two eco-sites, using the genotypes to determine their influence on the incidence of the gall midge and percentage parasitism by Platygaster diplosisae, Risbec (Diptera: Platygateridae), an endoparasitoid that has been identified as the most important natural enemy of AfRGM. …”
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Does use of unbordered plots affect estimation of upland rice yield? por Saito, Kazuki, Dieng, I., Vandamme, Elke, Johnson, J.M., Futakuchi, K.

“…The use of unbordered plots for field phenotyping is one approach for reducing the resources needed, but competition effects between neighboring lines may confound varietal performance. Four field experiments were conducted in Benin to examine whether grain yields of 14 diverse upland rice (Oryza sativa spp.) varieties determined in unbordered one‐row or two‐row plots differ from those measured in self‐bordered four‐row plots and to examine if statistical models including covariates based on plant characteristics (height, panicle number, and days to heading) for correcting competition effect can improve the estimation of the yield in unbordered plots. …”
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Susceptibility of cassava varieties to disease caused by Sri Lankan cassava mosaic virus and impacts on yield by use of asymptomatic and virus-free planting material por Malik, Al Imran, Sophearith, Sok, Delaquis, Erik, Cuéllar, Wilmer Jose, Jiménez Polo, Jenyfer, Newby, Jonathan Craig

“…This study assessed the susceptibility of popular Asian varieties to CMD, yield penalties associated with the disease, and the efficacy of selecting clean or asymptomatic plants as seed for the following season. Field experiments evaluated agronomic management practices (ie, fertilizer application, use of symptomatic and asymptomatic seed stakes) in Cambodia with six to nine popular varieties over three seasons under natural disease pressure. …”
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Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat por Achilli, Ana Laura, Roncallo, Pablo Federico, Larsen, Adelina Olga, Dreisigacker, Susanne, Echenique, Viviana

“…Fifty-nine Argentinian durum wheat cultivars were analyzed for important agronomic traits in three field experiments. The collection was genotyped with 3565 genome-wide SNPs and functional markers in order to determine the allelic variation at Rht-B1 and Ppd-A1 genes. …”
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Calibrated Models for Major Crops and Cropping System using Existing Datasets in Morocco and Uzbekistan por Devkota, Krishna, Devkota Wasti, Mina Kumari

“…Those input datasets for the model are derived from different sources, such as field experiments, household surveys, web-based data sources, remote sensing data, published literature, etc. …”
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Yield response of accessions of Bambara groundnut (Vigna subterranea (L) Verdc) inoculated with Bradyrhizobium japonicum strains por Bitire, T.D., Abberton, M., Oyatomi, O., Babalola, O.O.

“…Field experiments were conducted in two different agroecological locations of Ibadan and Ikenne in Nigeria from August through December during the 2019 and 2020 cropping seasons. …”
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Effect of mineral fertilisation on tuber yield and quality in yams (Dioscorea alata and Dioscorea rotundata) por Afolabi, F., Matsumoto, R., Akinwande, B., Otegbayo, B., Asfaw, A.

“…Four genotypes, each from D. alata and D. rotundata, were used in field experiments conducted in Ibadan, Nigeria, during the 2017 and 2018 cropping seasons. …”
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Morphometric diversity of some Nigerian accessions of Bambara groundnut (Vigna subterranea) por Osundare, O.T., Akinyele, O.B., Odiyi, A.C., Abberton, M.T., Oyatomi, O., Paliwal, R.

“…This study evaluated the morphological diversity of some Nigerian accessions of Bambara groundnut. Field experiments were conducted in Nigeria in two locations and the phenotypic variation of Bambara groundnut accessions evaluated in 3 years (2017–2020) using a randomized complete block design. …”
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Genome-wide association mapping for field spot blotch resistance in South Asian spring wheat genotypes por Kamble, Umesh, Xinyao He, Sudhir Navathe, Kumar, Manjeet, Patial, Madhu, Kabir, Muhammad Rezaul, Singh, Gyanendra, Singh, Gyanendra Pratap, Joshi, Arun Kumar, Pawan Kumar Singh

“…The present study focused on identifying resistant genotypes and single-nucleotide polymorphism (SNP) markers associated with spot blotch resistance in a panel of 174 bread spring wheat lines using field screening and genome-wide association mapping strategies. Field experiments were conducted in Agua Fria, Mexico, during the 2019–2020 and 2020–2021 cropping seasons. …”
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Scaling up HIV/AIDS interventions through expanded partnerships (STEPs) in Malawi por Kadiyala, Suneetha

“…Based on the recommendations of the evaluations and on field experience, the program changed course to mobilize collective action to combat the epidemic. …”
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Scaling up HIV/AIDS interventions through expanded partnerships (STEPs) in Malawi por Kadiyala, Suneetha

“…Based on the recommendations of the evaluations and on field experience, the program changed course to mobilize collective action to combat the epidemic. …”
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Identifying high-yielding and drought-tolerant wheat cultivars based on ideotypic traits and yield responses to stress por Yibo Li, Fulu Tao, Yuanfeng Hao, Yonggui Xiao, He Zhonghu, Reynolds, Matthew P.

“…In this study, we conducted field experiments at the Xinxiang Agricultural Comprehensive Experimental station in the North China Plain from 2018 to 2020 and assessed 209 wheat cultivars released since the 1940s under irrigated and nonirrigated conditions. …”
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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. …”
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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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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

“…The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. …”
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Importance of phosphorus and potassium in soil-specific nutrient management for wet-season rice in Cambodia por Kong, Kea, Hin, Sarith, Seng, Vang, Ismail, Abdelbagi M., Vergara, Georgina, Choi, Il-Ryong, Ehara, Hiroshi, Kato, Yoichiro

“…The objective of our study was to evaluate rice productivity and the economic feasibility of various nutrient management regimes in Cambodia. We conducted field experiments on three soil types (Prey Khmer, Prateah Lang, and Toul Samroung, equivalent to Psamments, Plinthustalfs, and Endoaqualfs, respectively) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 wet seasons to compare nine (2016) and seven (2017) N–P–K combinations. …”
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Improved early season management of sub1 rice varieties enhances post-submergence recovery and yield por Banayo, Niño P. M., Mabesa-Telosa, Ranee C., Singh, Sudhanshu, Kato, Yoichiro

“…The objective of this study was to dissect the growth response of IR64-Sub1 to integrated crop management in a flash flood at the late vegetative stage. Field experiments were conducted at the International Rice Research Institute, Philippines in the dry and wet seasons of 2013. …”
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Water use efficiency and physiological response of rice cultivars under alternate wetting and drying conditions por Zhang, Yunbo, Tang, Qiyuan, Peng, Shaobing, Xing, Danying, Qin, Jianquan, Laza, Rebecca C., Punzalan, Bermenito R.

Materias: “…field experimentation…”
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A comparison of the effects of micronutrient seed priming and soil fertilization on the mineral nutrition of chickpea (Cicer arietinum), lentil (Lens culinaris), rice (Oryza sativa... por Johnson, S.E., Lauren, J.G., Welch, R.M., Duxbury, J.M.

“…The primary micronutrient problem in grain legumes is B deficiency, while in rice (Oryza sativa), Zn deficiency is more important, and wheat (Triticum aestivum) suffers from both deficiencies. A series of field experiments was carried out over two seasons to compare soil fertilization and micronutrient seed priming as methods of improving Zn and B nutrition of each crop. …”
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Upper thresholds of nitrogen uptake rates and associated nitrogen fertilizer efficiencies in irrigated rice por Peng, Shaobing, Cassman, Kenneth G.

“…In this study, N uptake dynamics and fertilizer N recovery efficiency following N topdressing were determined with more frequent samplings. Field experiments were conducted at International Rice Research Institute (IRRI) and at the Philippine Rice Research Institute (PRRI) during the 1995 dry season. …”
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