Search Results - "Philippines"

Harnessing the hidden genetic diversity for improving multiple abiotic stress tolerance in rice (Oryza sativa L.) by Ali, Jauhar, Xu, Jianlong, Gao, Yong-Ming, Ma, Xiu-Fang, Meng, Lijun, Wang, Ying, Pang, Yunlong, Guan, Yong-Sheng, Xu, Mei-Rong, Revilleza, Jastin E., Franje, Neil J., Zhou, Shao-Chuan, Li, Zhikang

“…Six new varieties were released in the Philippines and Pakistan and many more are being evaluated in multi-location yield trials for releasing in several countries. …”
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Threelobe morningglory (Ipomoea triloba) germination and response to herbicides by Chauhan, Bhagirath Singh, Abugho, Seth Bernard

“…Experiments were conducted in the laboratory and screenhouse to determine the effects of scarification; alternating day/night temperatures; light, salt, and water stress; seed burial depth; and rice residue on seed germination and seedling emergence of threelobe morningglory, and to evaluate the response of this weed to commonly available POST herbicides in the Philippines. Germination was stimulated by seed scarification, suggesting that inhibition of germination in this species is mainly due to the hard seed coat. …”
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Trait combinations that improve rice yield under drought: Sahbhagi Dhan and new drought-tolerant varieties in South Asia by Anantha, M.S., Patel, Devraj, Quintana, Marinell, Swain, Padmini, Dwivedi, Jawaharlal L., Torres, Rolando O., Verulkar, Satish B., Variar, Mukund, Mandal, Nimai P., Kumar, Arvind, Henry, Amelia

“…Physiological characterization of Sahbhagi Dhan and other newer breeding lines was conducted across multiple seasons at one site in the Philippines and at four sites in India. Several distinct traits of Sahbhagi Dhan were observed: high emergence rates under direct‐seeded germination‐stage stress, a high proportion of total root length as lateral roots in some seasons, high harvest index under drought, and high yield stability across wet seasons. …”
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Physiological and biochemical characterization of NERICA-L-44: a novel source of heat tolerance at the vegetative and reproductive stages in rice by Bahuguna, Rajeev N., Jha, Jyoti, Pal, Madan, Shah, Divya, Lawas, Lovely M.F., Khetarpal, Sangeetha, Jagadish, Krishna S.V.

“…Hence, to identify and characterize novel heat‐tolerant donors for both the vegetative and reproductive stages, 71 rice accessions, including approximately 75% New Rice for Africa (NERICAs), were phenotyped across field experiments during summer seasons in Delhi, India, and in a controlled environment study at International Rice Research Institute, Philippines. NERICA‐L‐44 (NL‐44) recorded high seedling survival (52%) and superior growth and greater reproductive success exposed to 42.2°C (sd ± 2.3) under field conditions. …”
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Comparative transcriptome profiling reveals different expression patterns in Xanthomonas oryzae pv. oryzae strains with putative virulence-relevant genes by Zhang, Fan, Du, Zhenglin, Huang, Liyu, Vera Cruz, Casiana, Zhou, Yongli, Li, Zhikang

“…An attempt has been made to investigate gene expression patterns of three Xoo strains on the minimal medium XOM2, PXO99 (P6) and PXO86 (P2) from the Philippines, and GD1358 (C5) from China, which exhibited different virulence in 30 rice varieties, with putative virulence factors using deep sequencing. …”
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Mapping soil texture classes using field texturing, particle size distribution and local knowledge by both conventional and geostatistical methods by Oberthür, T., Goovaerts, P., Dobermann, A.

“…These data were complemented with 'soft' information derived from farmers and soil experts (Northeast Thailand) and soil maps (Nueva Ecija, Philippines). Interpolated maps agreed with the texture map based on interpolation of particle size distribution, and ®eld estimates of soil texture proved to be valuable surrogates for laboratory measurements of soil texture classes. …”
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Evaluation of biofertilizers in irrigated rice: effects on grain yield at different fertilizer rates by Banayo, Niño Paul Meynard, Sta. Cruz, Pompe C., Aguilar, Edna A., Badayos, Rodrigo B., Haefele, Stephan M.

“…Therefore, we evaluated three different biofertilizers (based on Azospirillum, Trichoderma, or unidentified rhizobacteria) in the Philippines during four cropping seasons between 2009 and 2011, using four different fertilizer rates (100% of the recommended rate [RR], 50% RR, 25% RR, and no fertilizer as Control). …”
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Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice by Cheng, Lirui, Wang, Yun, Meng, Lijun, Hu, Xia, Cui, Yanru, Sun, Yong, Zhu, Ling-Hua, Ali, Jauhar, Xu, Jianlong, Li, Zhikang

“…Effect of genetic background on detection of quantitative trait locus (QTL) governing salinity tolerance (ST) was studied using two sets of reciprocal introgression lines (ILs) derived from a cross between a moderately salinity tolerant japonica variety, Xiushui09 from China, and a drought tolerant but salinity susceptible indica breeding line, IR2061–520–6-9 from the Philippines. Salt toxicity symptoms (SST) on leaves, days to seedling survival (DSS), and sodium and potassium uptake by shoots were measured under salinity stress of 140 mmol/L of NaCl. …”
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Population characteristics and tungro transmission by Nephotettix virescens (Hemiptera: Cicadellidae) on selected resistant rice cultivars by Dahal, G., Hibino, H., Aguiero, V.M.

“…Rice green leafhopper Nephotettix virescens (Distant) populations were collected in 1985 from fields planted with a leafhopper resistant rice, Oryza sativa cultivar IR64 in South Cotabato, Philippines. The populations were reared on IR64 for eight generations and tested on six cultivars, including susceptible TN1, moderately resistant IR26 and IR36, and resistant IR54, IR62, and IR64. …”
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Management options, technologies and strategies for minimised mycotoxin contamination of rice by Gummert, M., Balingbing, C., Barry, G., Estevez, L.

“…Exploratory studies in the Philippines compared best practice post-harvest management with the traditional management practices often used by smallholder farmers and small processors. …”
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Using leaf color charts to estimate leaf nitrogen status of rice by Yang, Woon-Ho, Peng, Shaobing, Huang, Jianliang, Sanico, Arnel L., Buresh, Roland J., Witt, Christian

“…Two field experiments were conducted in the Philippines with different N rates and cultivars grown during 2000 wet season and 2001 dry season. …”
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Hybrid rice for tomorrow's food security: can the Chinese miracle be replicated in other countries? by Janaiah, A., Hossain, Mahabub, Husain, Muazzam

“…Rigorous research efforts over the past decade have led to the release of a few promising rice hybrids in India, Bangladesh, Vietnam and the Philippines. This paper aims to assess the prospects for replicating the Chinese miracle of hybrid rice success in other Asian countries, where political systems and other socioeconomic conditions differ from those in China. …”
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Interactions of rice seedlings with bacteria isolated from rice roots by Prayitno, J., Stefaniak, J., McIver, J., Weinman, J.J., Dazzo, F.B., Ladha, J.K., Barraquio, W., Yanni, Y.G., Rolfe, B.G.

“…The second group of bacterial strains was isolated from rice cultivars grown in the Philippines. Inoculation experiments with rice seedlings showed that specific isolates of these rice-associating bacteria could either promote, inhibit, or have no influence on rice plant growth. …”
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Legumes As Nitrate Catch Crops During the Dry-To-Wet Transition in Lowland Rice Cropping Systems by George, Thomas, Ladha, J.K., Garrity, Dennis P., Buresh, Roland J.

“…In a 2‐yr field study in an Alfisol in the Philippines, we examined the role of legume crops and weeds during the dry‐to‐wet (DTW) transition in conserving and/or recycling soil NO3‒ that accumulated under varied dry‐season fallow management. …”
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Fallow and Sesbania Effects on Soil Nitrogen Dynamics in Lowland Rice-Based Cropping Systems by Buresh, R.J., Chua, T.T., Castillo, E.G., Liboon, S.P., Garrity, D.P.

“…To determine fallow and green manure crop effects on soil nitrate and ammonium dynamics in lowland riceland, a 2‐yr field study was conducted in the Philippines. Treatments before wet season rice were (i) Sesbania rostrata grown for either 45 or 60 d, (ii) weedy fallow, and (iii) weed‐free fallow. …”
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Nitrogen Fertilization of Direct-Seeded Flooded Vs. Transplanted Rice. II. Interactions Among Canopy Properties by Dingkuhn, M., Schnier, H.F., De Datta, S.K., Dorffling, K., Javellana, C., Pamplona, R.

“…Growth analyses of transplanted and row‐seeded ‘IR64’ rice (Oryza sativa L.) grown in the Philippines at six levels of applied N indicated that growth and CO2 assimilation rates were low during reproductive growth in row‐seeded as compared with transplanted rice. …”
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Rice Responses To A Short-Duration Green Manure .2. N Recovery And Utilization by Morris, R.A., Furoc, R.E., Dizon, M.A.

“…The experiments were conducted on a fine mixed isohyperthermic Aeric Tropaqualf in the Philippines during the 1983 and 1984 wet seasons. In two experiments, factorial combinations of inorganic N (0 and 80 kg N ha 1) and green manure growth duration (20, 30, and 40 days in the first year; 25,35, and 45 days in the second year), were tested. …”
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A global and some national perspectives on the current evidence of interventions on fruit and vegetable intake in low-, middle-, and high-income countries by Hess, Sonja Y., Angeles-Agdeppa, Imelda, Kinabo, Joyce, Mitchodigni, Irene Medeme, Silva, Renuka, Tharaney, Manisha, Azupogo, Fusta, Bliznashka, Lilia, Hinnouho, Guy-Marino, Koyratty, Nadia, Smith, Taryn J., Olney, Deanna K.

“…Specifically, we considered the evidence for 4 target countries of the Fruit and Vegetables for Sustainable Healthy Diets Initiative: Benin, the Philippines, Sri Lanka, and Tanzania. When considering available evidence at the national level, there is a paucity of information from intervention trials despite evidence of inadequate F&V intakes in each of these countries. …”
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Machine learning reveals drivers of yield sustainability in five decades of continuous rice cropping by Yamaguchi, Tomoaki, Angeles, Olivyn, Iizumi, Toshichika, Dobermann, Achim, Katsura, Keisuke, Saito, Kazuki

“…Here, we use machine learning techniques to assess the impact of climate change, genotype, and nutrient management on rice yield in the world's longest-running continuous cropping experiment (LTCCE) at the International Rice Research Institute (IRRI) in the Philippines. In the experiment, three to six rice genotypes were cultivated from 1968 to 2017 in three annual cropping seasons—dry, early wet, and late wet seasons—with four nitrogen (N) fertilizer treatments. …”
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Understanding the evidence gaps: Diets and fruit and vegetable intake across five diverse low- and middle-income countries by Tharaney, Manisha, Hess, Sonja Y., Bliznashka, Lilia, Amunga, Dorcas A., Azupogo, Fusta, Koyratty, Nadia, Smith, Taryn J., Angeles-Agdeppa, Imelda, Goyena, Eva A., Grant, Frederick, Kinabo, Joyce, Mitchodigni, Irene Medeme, Silatolu, Anasaini Moala, Silva, Renuka, Hambayi, Mutinta, Perera, Thushanthi, Olney, Deanna K.

“…This article synthesizes findings from scoping reviews examining diet and F&V intake, and interventions to increase F&V consumption among population groups in five countries: Benin, Fiji, the Philippines, Sri Lanka and Tanzania. Our analysis confirms previous findings of inadequate F&V intake across all five countries, with most adults consuming well below the WHO recommendations of 400 g per day. …”
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