Resultados de búsqueda - "A"

Agricultural research and productivity growth in India por Evenson, Robert E., Pray, Carl E., Rosegrant, Mark W.

“…But some policymakers who perceive that the benefits to research may be declining are advocating a cut back on public spending on research. This research report, which examines the effects of research and development on productivity in India, finds that India is still benefiting from these investments. …”
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Supply of pigeonpea genetic resources in local markets of Eastern Kenya por Nagarajan, Latha, Audi, Patrick, Jones, Richard

“…The amount of time spent selling by different vendors in the village fairs also had a significant influence on the pigeonpea quantity traded. …”
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Crossing the river while feeling the rocks: Incremental land reform and its impact on rural welfare in China por Bruce, John W., Li, Zongmin

“…Between 1978 and 1984, a massive shift from collective to household agricultural production took place in China. …”
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Collective action for smallholder market access por Markelova, Helen, Meinzen-Dick, Ruth S.

“…Agricultural producers in the developing world face significant challenges as a result of changing economic, environmental, and sociopolitical conditions. …”
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Linkage mapping and genomic prediction of grain quality traits in tropical maize (Zea mays L.) por Ndlovu, Noel, Kachapur, Rajashekar M., Beyene, Yoseph, Das, Biswanath, Ogugo, Veronica, Makumbi, Dan, Spillane, Charles, McKeown, Peter C., Prasanna, Boddupalli M., Gowda, Manje

“…The suboptimal productivity of maize systems in sub-Saharan Africa (SSA) is a pressing issue, with far-reaching implications for food security, nutrition, and livelihood sustainability within the affected smallholder farming communities. …”
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When school overlaps with farming: Measuring reduced educational advancement and simulating solutions in Africa por Allen IV, James

“…In the United States, it’s a widely held belief that the typical school calendar developed around the already existing farming calendar. …”
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Superior haplotypes of key drought-responsive genes reveal opportunities for the development of climate-resilient rice varieties por Singh, Preeti, Sundaram, Krishna T., Vinukonda, Vishnu Prasanth, Venkateshwarlu, Challa, Paul, Pronob J., Pahi, Bandana, Gurjar, Anoop, Singh, Uma Maheshwar, Kalia, Sanjay, Kumar, Arvind, Singh, Vikas K., Sinha, Pallavi

“…The validation results indicate that a superior haplotype for the DREB transcription factor (OsDREB1C) is present in all the drought-tolerant rice varieties, while it was notably absent in all susceptible varieties. …”
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Varietal effects on Greenhouse Gas emissions from rice production systems under different water management in the Vietnamese Mekong Delta por Vo, Thi Bach Thuong, Johnson, Kristian, Wassmann, Reiner, Sander, Bjoern Ole, Asch, Folkard

“…However, the potential for mitigation through the selection of different rice varieties is still poorly understood. A two‐year field screening of 20 rice varieties under continuous flooding (CF) and alternate wetting and drying (AWD) irrigation was conducted in the Vietnamese Mekong Delta (VMD), Vietnam, employing the closed chamber method for assessing GHG emissions. …”
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Identification and designed QTL breeding of reliable QTLs for milling quality and grain shape in the reciprocal introgression lines in rice por Emelin, Mwenda, Qiu, Xianjin, Fan, Fangjun, Alami, Md., Faruquee, Muhiuddin, Hu, Hui, Xu, Junying, Yang, Jie, Xu, Haiming, Ali, Jauhar, Liu, Bailong, Shi, Yumin, Li, Zhikang, Zhang, Luyan, Zheng, Tianqing, Xu, Jianlong

“…In this study, our objectives were (1) to provide a set of reciprocal introgression lines (composed by two BC2RIL populations) suitable for mapping by linkage mapping using markers/bins with physical positions; (2) to test mapping effect by MQ-GS correlation dissection by different mapping methods; (3) to perform genetic and breeding simulation to pyramid favorite alleles of QTLs for representative MQ-GS traits. …”
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Adapting to Climate-Change-Induced Drought Stress to Improve Water Management in Southeast Vietnam por Thanh, Phong Nguyen, Le Van, Thinh, Minh, Tuan Tran, Ngoc, Tuyen Huynh, Lohpaisankrit, Worapong, Pham, Quoc Bao, Gagnon, Alexandre S., Deb, Proloy, Pham, Nhat Truong, Anh, Duong Tran, Dinh, Vuong Nguyen

“…This study aims to calculate the water balance and the resilience of existing water resource allocations in the La Nga-Luy River basin based on two scenarios: (1) business-as-usual and (2) following a sustainable development approach. The MIKE NAM and MIKE HYDRO BASIN models were used for rainfall–runoff (R-R) and water balance modeling, respectively, and the Keetch–Byram Drought Index (KBDI) was used to estimate the magnitude of the droughts. …”
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Genotypic variation of yield-related traits in an irrigated rice breeding program for tropical Asia por Ata-Ul-Karim, Syed Tahir, Begum, Hasina, Lopena, Vitaliano, Borromeo, Teresita, Virk, Perminder, Hernandez, Jose E., Gregorio, Glenn B., Collard, Bertrand C. Y., Kato, Yoichiro

“…This study aimed to determine the extent of variation for 19 agronomic traits and interrelationships among traits in an irrigated rice breeding program at the International Rice Research Institute, Philippines. A large set of elite germplasm comprising advanced genotypes and varieties derived from the breeding pipeline was evaluated during dry and wet seasons. …”
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Flowering behavior and selection of hybrid potato clones through LXT breeding approaches por Amin, Md. Nurul, Rahman, Md. Mushfiqur, Rahman, Mosaddiqur, Al Mahmud, Abdullah, Naznin, Afroz, Islam, Md. Mazadul, Kundu, Bimal Chandra, Alsuhaibani, Amnah Mohammed, Gaber, Ahmed, Ahmed, Sharif

“…This study will help to design a breeding program following potato population development and the selection of progeny before their utilization as progenitors.…”
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Breeding temperate japonica rice varieties adaptable to tropical regions: Progress and prospects por Pacleb, Myrish, Jeong, O-Young, Lee, Jeom-Sig, Padolina, Thelma, Braceros, Rustum, Pautin, Lenie, Torollo, Gideon, Sana, Elbert E., Del-Amen, Jesson Y., Baek, Man-Kee, Jo, Sumin, Hyun, Woong-Jo, Park, Hyun-Su, Jeong, Jong-Min, Lee, Ji-Youn, Cho, Jun-Hyeon, Lee, Jeong-Heui, Lee, Sais-Beul, Choi, Il-Ryong, Kim, Sung-Ryul, Lee, Jae-Sung, Sreenivasulu, Nese, Ko, Jong-Cheol, Lee, Joum-Ho, Kim, Byeong-Ju, Kim, Ki-Young, Park, Dong-Soo

“…Many temperate japonica varieties have a superior grain quality that is preferred in Northeast Asian countries such as Japan, Korea, and China. …”
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Integrated weed management in transplanted rice: Options for addressing labor constraints and improving farmers’ income in Bangladesh por Ahmed, Sharif, Kumar, Virender, Alam, M. Murshedul, Dewan, Mahbubur Rahman, Bhuiyan, Khairul Alam, Miajy, Abu Abdullah, Saha, Abhijit, Singh, Sudhanshu, Timsina, Jagadish, Krupnik, Timothy J.

“…Labor scarcity coupled with intensive rice production has triggered increased use of herbicides. These factors warrant a cost-effective and strategic integrated weed management (IWM) approach. …”
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Differences between the strength of preference-performance coupling in two rice stemborers (Lepidoptera: Pyralidae, Crambidae) promotes coexistence at field-plot scales por Horgan, Finbarr G., Romena, Angelita M., Bernal, Carmencita C., Almazan, Maria Liberty P., Ramal, Angelee Fame

“…In contrast, SSB did not demonstrate oviposition preferences under the same screenhouse conditions, but did oviposit less on the wild rice Oryza rufipogon Griff. than on domesticated rice varieties during a choice experiment. Despite differences in preference–performance coupling, larval survival and biomass across 10 varieties were correlated between the two species. …”
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Molecular programming of drought-challenged Trichoderma harzianum-bioprimed rice (Oryza sativa L.) por Bashyal, Bishnu Maya, Parmar, Pooja, Zaidi, Najam Waris, Aggarwal, Rashmi

“…Overall, it can be concluded that T. harzianum biopriming delays drought stress in rice cultivars by a multitude of molecular programming.…”
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QTL mapping and favorable allele mining of nitrogen deficiency tolerance using an interconnected breeding population in rice por Shen, Congcong, Chen, Kai, Cui, Yanru, Chen, Jiantao, Mi, Xuefei, Zhu, Shuangbin, Zhu, Yajun, Ali, Jauhar, Ye, Guoyou, Li, Zhikang, Xu, Jianlong

“…Association analysis using 7,388 bins generated by sequencing identified a total of 14, 14, and 12 QTLs for the five traits under low nitrogen (LN), normal nitrogen (NN), and LN/NN conditions, respectively, across three seasons. …”
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NaCl- and Na2SO4-induced salinity differentially affect clay soil chemical properties and yield components of two rice cultivars (Oryza sativa L.) in Burundi por Irakoze, Willy, Prodjinoto, Hermann, Nijimbere, Séverin, Bizimana, Jean Berchmans, Bigirimana, Joseph, Rufyikiri, Gervais, Lutts, Stanley

“…Saline stress significantly affected all yield-related parameters and NaCl was more toxic than Na2SO4 for most of the studied parameters. Pokkali exhibited a higher tolerance to saline stress than V14, whatever the considered type of salt. …”
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Overexpression of the chloroplastic 2-oxoglutarate/malate transporter disturbs carbon and nitrogen homeostasis in rice por Zamani-Nour, Shirin, Lin, Hsiang-Chun, Walker, Berkley J., Mettler-Altmann, Tabea, Khoshravesh, Roxana, Karki, Shanta, Bagunu, Efren, Sage, Tammy L., Quick, W. Paul, Weber, Andreas P.M.

“…Together with the glutamate/malate transporter (DCT1 or DiT2), it connects carbon with nitrogen assimilation, by providing 2-oxoglutarate for the GS/GOGAT (glutamine synthetase/glutamate synthase) reaction and exporting glutamate to the cytoplasm. OMT1 further plays a prominent role in C4 photosynthesis: OAA resulting from phosphoenolpyruvate carboxylation is imported into the chloroplast, reduced to malate by plastidic NADP-malate dehydrogenase, and then exported for transport to bundle sheath cells. …”
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Genotyping-by-sequencing based QTL mapping for rice grain yield under reproductive stage drought stress tolerance por Yadav, Shailesh, Sandhu, Nitika, Singh, Vikas Kumar, Catolos, Margaret, Kumar, Arvind

“…Further, the effect of the identified qDTY1.1 was validated in a subset of lines derived from five mapping populations confirming robustness of qDTY1.1 across various genetic backgrounds/seasons. …”
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