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Relevant bibliographies by topics / Crop improvement

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Academic literature on the topic 'Crop improvement'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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Journal articles on the topic "Crop improvement"

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Choudhary, Mukesh, Vishal Singh, Vignesh Muthusamy, and Shabir Hussain Wani. "Harnessing Crop Wild Relatives for Crop Improvement." LS: International Journal of Life Sciences 6, no. 2 (2017): 73. http://dx.doi.org/10.5958/2319-1198.2017.00009.4.

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Merchán, Kelly. "Crop Improvement ≠ Plant Breeding." CSA News 66, no. 5 (April 22, 2021): 28–31. http://dx.doi.org/10.1002/csan.20445.

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CLEGG, MICHAEL T. "Genetics of Crop Improvement." American Zoologist 26, no. 3 (August 1986): 821–34. http://dx.doi.org/10.1093/icb/26.3.821.

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Gosal, Satbir S., Shabir H. Wani, and Manjit S. Kang. "Biotechnology and Crop Improvement." Journal of Crop Improvement 24, no. 2 (April 29, 2010): 153–217. http://dx.doi.org/10.1080/15427520903584555.

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Evans, Adrian. "Innovations in crop improvement." Crop Protection 12, no. 3 (May 1993): 237. http://dx.doi.org/10.1016/0261-2194(93)90116-z.

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Smith, Steven M. "Crop improvement utilizing biotechnology." Agricultural Systems 36, no. 2 (January 1991): 246–47. http://dx.doi.org/10.1016/0308-521x(91)90032-6.

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Praveen Rao, V. "Breeding for Crop Improvement." Current Science 114, no. 02 (January 25, 2018): 256. http://dx.doi.org/10.18520/cs/v114/i02/256-257.

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Springer, Nathan M. "Epigenetics and crop improvement." Trends in Genetics 29, no. 4 (April 2013): 241–47. http://dx.doi.org/10.1016/j.tig.2012.10.009.

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Ramulu, K. S., V. K. Sharma, T. N. Naumova, P. Dijkhuis, and M. M. van Lookeren Campagne. "Apomixis for crop improvement." Protoplasma 208, no. 1-4 (March 1999): 196–205. http://dx.doi.org/10.1007/bf01279090.

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Sourdille, Pierre, and Pierre Devaux. "Crop Improvement: Now and Beyond." Biology 10, no. 5 (May 10, 2021): 421. http://dx.doi.org/10.3390/biology10050421.

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Dissertations / Theses on the topic "Crop improvement"

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Herse, Maria. "Crop improvement using synthetic variation." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607892.

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Atkinson, Ross G. "Molecular approaches to horticultural crop improvement." Thesis, University of Auckland, 1993. http://hdl.handle.net/2292/1911.

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Plant biotechnology and molecular biology are now being used to complement conventional breeding programmes in most of the world's important crop species. The aim of the research described in this thesis was to improve New Zealand's horticultural crop plants through application of similar molecular techniques. A) Gene transfer systems for apple, pepino and tamarillo Tissue culture systems were developed for micropropagation and regeneration of apple (cv Royal Gala), pepino (cv El Camino) and tamarillo (selection Oratia Red). In all three species, transient expression of the gusA reporter gene was observed and kanamycin resistant callus was produced, following inoculation with the pKIWI110 binary vector in the avirulent Agrobacterium strain LBA4404. No transgenic apple shoots were obtained. However, transgenic pepino and tamarillo plants expressing the gusA reporter gene, kanamycin resistance and herbicide tolerance were successfully regenerated. PCR and Southern analysis provided molecular evidence for integration of foreign DNA into the genomes of transgenic pepino and tamarillo plants, but indicated deletions of the integrated T-DNAs had occurred with high frequency. Inheritance of the transgenic phenotypes was demonstrated in the progeny of transgenic tamarillo plants. B) Characterisation of polygalacturonase genes A kiwifruit genomic clone with homology to a tomato cDNA clone for polygalacturonase (PG) was sequenced over an 8.1 kb region. The sequence revealed a gene divided into nine exons, with 58% overall identity to the tomato PG gene at the amino acid level. Significant homology was also noted to PG genes isolated from peach, Oenothera organensis and maize, particularly in several blocks of conserved amino acids believed to encode the active site of the enzyme. Analysis of the kiwifruit PG promoter revealed three 81 bp direct repeat sequences just upstream of the kiwifruit peptide start codon. These repeats were also conserved in a second kiwifruit PC genomic clone. Characterisation of partial cDNA clones indicated that at least two mRNAs for PG were expressed in ripe kiwifruit. Southern hybridisation detected the PG gene at low copy number in the genomes of kiwifruit, two other Actinidia species, apple and pepino. PCR was used to amplify a fragment of the apple PG gene for sequence analysis. PG sequences were also used to help define the genetic origin of kiwifruit. A region of the PG gene was amplified and sequenced from four Actinidia species: kiwifruit (A. deliciosa), A. chinensis, A. eriantha and A. chrysantha. These sequences were used to produce a phylogeny using PAUP (phylogenetic analysis using parsimony). Two distinct lineages of PG genes were observed in the genomes of A. deliciosa, A. chinensis and A. eriantha. Within both these lineages, A. deliciosa sequences were quite distinct to those found in the other three Actinidia species, with the exception of a single sequence that was identical to A. chinensis. These results suggest that hexaploid kiwifruit is an allopolyploid with A. chinensis and at least one other Actinidia species as likely progenitors.

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Potter, Mark. "Biochemical studies of tissue glucosinolates for improvement of canola (Brassica napus) as a disease break within the southern Australian cereal rotation /." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09php8678.pdf.

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Thesis (Ph.D) -- University of Adelaide, Depts. of Plant Science and Crop Protection, 1998.
Thesis (Ph.D.)--University of Adelaide, Depts. of Plant Science and Crop Protection, 1999? Bibliographical references: leaves 112-125.

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Ukozehasi, Celestin. "A physiological basis to crop improvement and agronomic development." Thesis, University of Cambridge, 2015. https://www.repository.cam.ac.uk/handle/1810/248744.

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Despite of the documented impacts of the so-called green revolution, food security in the world faces new challenges in terms of population growth, increases in no-agricultural land use (urbanization), and climate change. Trends in food security show that the world community is operating within two limits of food system: (i) the quantity of food that can be produced under a given climate; and (ii) the quantity of food needed by a growing and changing population. Therefore, taking food security successfully into the future requires novel approaches to boost agricultural productivity in order to balance food supply and demand without expanding the agricultural land. To date, progress in wheat yield has been largely the result of the development of dwarf varieties through introgression of reduced height (Rht) genes. The height reductions arising from the presence of these genes increased yield by alteration of partitioning of dry matter and nitrogen in favour of the spike. However, increased partitioning through additional reductions in plant height is not likely; as comparative studies indicate that wheat yield is reduced when plants are shortened beyond a threshold, and most of the modern cultivars have reached the optimal height. Therefore, this dissertation aimed to identify the physiological attributes able to produce yield increases in the Rht genotypes with the optimal heights. Approaches based on physiological understanding of yield are necessary for developing genotypes combining high yielding potential and agronomic traits of superior adaptation, and for understanding yield limiting factors. Yet, direct measurement of physiological variables is often difficult or expensive; as an example, measuring plant water status in the field is problematic, with techniques such as psychrometry generally only being suitable for laboratory studies. Therefore, proxy such as tissue RWC may be a good alternative measure of plant water status. We aimed to address these questions with three components of experimental research :(i) proxy-based screening to increased photosynthetic rate and water use efficiency in wheat; (ii) determinants of increased HI in lines with different Rht genes (b, c) when incorporated into contrasting background wheat genomes (B, D), and the relative effect on N partitioning during grain filling; (iii) analyses of stable isotopes (δ²H, δ¹⁸O, δ¹⁵N and δ¹³C) in an agronomic perspective in alley cropping systems associated with adjacent N₂ fixing trees, in terms of hydraulic redistribution, N availability and crop yields. In this thesis, the proxy-based approach to crop selection was defined as a surrogate-based (proxy and surrogate used interchangeably) screening of cultivars for morphological, anatomical, and physiological traits of performance or crop environmental responses. The research proposed steps for conducting a proxy-based crop selection programme. A comparative screening of 23 Eps cultivars and ranking for traits of photosynthetic and water use efficiency showed the correlative relationships of SLA to An, WUEi, leaf N, Δ¹³C, Kh, leaf RWC, and IVD. Additionally, it was observed that IVD may influence WUE and Amax. It was suggested that these relationships of SLA to traits of photosynthesis possibly resulted from the association of SLA and the leaf biochemical characteristics. Attention was also given to examining the mechanistic foundations that determine the relationship between plant height and yield. The results showed the straw-shortening significantly correlated both with Amax and Kh; and SLA decreased with the level of dwarfing; and the Amax related both Kh and SLA. Therefore, it was proposed that the straw-shortening may affects Amax by exerting a controlling influence over Kh through SLA. Moreover, both the partitioning of N to spike and the flag leaf N were related to plant height and growth stage. Additionally, the increased post-anthesis partitioning of N to grain associated with high N uptake rate and high MRT of N were probably the traits behind increased NUE and NHI. The data also indicated that increased grain number per spike, kernel weight and reduced peduncle length might be the driver of the increased HI in this experiment. The test of the hypothesis that there might be practical application of the analyses of the natural abundance of stable isotopes (δ²H, δ¹⁸O, δ¹³C, and δ¹⁵N) and isotopic mixing model by IsoSource to understand plant interactions in terms of water redistribution and nitrogen transfer and uptake in agroforestry systems, indicated a consistent gradient in depletion of wheat xylem water δ²H, δ¹⁸O, and δ¹⁵N in leaf as moving further away from the tree line. The data also reflected a consistent pattern of isotopic values (δ²H, δ¹⁸O, and δ¹⁵N) in wheat in the proximity of the tree being similar to that of the tree, suggesting they were using the same source of water and N. Similarly, an isotopic mixing model data showed that the crops in the proximity of the trees accessed considerably amounts of the water and nitrogen redistributed by trees. The study also indicated the improvement in water use efficiency, chlorophyll content, grain number per spike, and grain yield for the crops nearest to the trees for a distance up to 5 m. In conclusion, selection for increased HI should shift focus from reduced plant height to include increased grain number and kernel weight, increased partitioning of N to spike, reduced peduncle length, and low SLA. Finally, the hypothesis that efflux of water and N in agroforestry system from tree roots in topsoil and influences a number of physiological functions of neighbouring crops was confirmed by isotopic and physiological data.

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Joshi, Krishna Dev. "Rice varietal diversity and participatory crop improvement in Nepal." Thesis, Bangor University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327412.

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O'Neill, Rachel Elizabeth. "Sugar beet cell walls in relation to crop improvement." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/19845/.

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Sugar beet (Beta vulgaris L. subsp. vulgaris) is an economically important crop for the production of dietary sucrose. Breeding efforts towards crop improvement traditionally aim to increase sugar yield as well as in field performance. However, more recently the sugar beet pulp, a by-product of sucrose extraction, has been identified as a potential resource for additional industrial applications. Therefore breeding efforts could be directed towards the improved composition of sugar beet pulp for efficient use in these industries. Plant cell wall composition is integral to both crop performance as cell walls play a role in root growth, development and sucrose accumulation. In addition, plant cell walls make up the majority of sugar beet pulp and therefore cell wall composition influences post extraction applications. A developmental study of three Beta vulgaris varieties, utilising a monoclonal antibody directed to xylan, has allowed the visualisation of the xylem vessels within the successive cambial arrangement seen in beet roots. Importantly, a novel monoclonal antibody (LM26) directed towards phloem sieve elements has been characterised as part of this project (Torode et al., 2018). This mAb has allowed the visualisation of the relative location and abundance of phloem sieve elements in situ and how this could translate to sucrose accumulation. Monoclonal antibodies directed to several different cell wall polysaccharides were used to screen field grown commercial sugar beet (Sophia) using immunoassay techniques (Enzyme-linked immunosorbent assay (ELISA) and for the first time compared against the cell wall polysaccharide screening technique Comprehensive microarray polymer profiling (CoMPP)) on the same samples to compare the best use of these techniques. These screens indicated that sugar beet cell wall composition is modified throughout development and is influenced by environmental factors. The CoMPP technique was manipulated as a high throughput method to compare the cell wall composition of a unique population of recombinant inbred lines (RILs). Cell wall characteristics were identified which can influence the physiological properties such as sugar yield to aid the phenotyping of the varied population. From this analysis candidate lines have been selected from the RILs that have the potential to be used to direct breeding efforts towards crop improvement.

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Wen, Lan-Ying. "Maize transposable elements (Ac/Ds) in Brassica oleracea : their introduction and behaviour." Thesis, University of East Anglia, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386253.

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Luong, Hang Tu. "Studies on transformation of cassava (Manihot esculenta Crantz.)." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336224.

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Patil, Rajendra S. "Genetic manipulation of tomato (Lycopersicon esculentum Mill.) for crop improvement." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241514.

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Chapkowski, Andrew J. "Geographical distribution of pediobius foveolatus in New Jersey soybean fields to control the Mexican bean beetle population." Diss., Maryville, Mo. : Northwest Missouri State University, 2008. http://www.nwmissouri.edu/library/theses/ChapkowskiAndrew/index.htm.

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Thesis (M.S.)--Northwest Missouri State University, 2008.
The full text of the thesis is included in the pdf file. Title from title screen of full text.pdf file (viewed on July 25, 2008) Includes bibliographical references.

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Books on the topic "Crop improvement"

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Abdullah, Siti Nor Akmar, Ho Chai-Ling, and Carol Wagstaff, eds. Crop Improvement. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65079-1.

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Hakeem, Khalid Rehman, Parvaiz Ahmad, and Munir Ozturk, eds. Crop Improvement. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1.

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Gupta, U. S. Crop improvement. Enfield, New Hampshire: Science Publishers, 1990.

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J, Smartt, ed. Principles of crop improvement. 2nd ed. Oxford: Blackwell Science, 1999.

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Simmonds, N. W. Principles of crop improvement. Harlow, Essex, England: Longman Scientific & Technical, 1987.

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Mohan, Jain S., Brar D. S, and Ahloowalia B. S, eds. Molecular techniques in crop improvement. Dordrecht: Kluwer Academic Publishers, 2002.

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Kumar, Nitish. Biotechnology and Crop Improvement. New York: CRC Press, 2022. http://dx.doi.org/10.1201/9781003239932.

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Varshney, Rajeev K., and Roberto Tuberosa, eds. Genomics-Assisted Crop Improvement. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6295-7.

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Varshney, Rajeev K., and Roberto Tuberosa, eds. Genomics-Assisted Crop Improvement. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6297-1.

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B, Singh S. Sugarcane crop production & improvement. Houston, Tex: Studium Press, 2009.

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Book chapters on the topic "Crop improvement"

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Bharathi, L. K., and K. Joseph John. "Crop Improvement." In Momordica genus in Asia - An Overview, 123–47. India: Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1032-0_8.

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Ozyigit, Ibrahim Ilker, Ilhan Dogan, and Ebru Artam Tarhan. "Agrobacterium rhizogenes-Mediated Transformation and Its Biotechnological Applications in Crops." In Crop Improvement, 1–48. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_1.

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Rasheed, Awais, Tariq Mahmood, Alvina Gul-Kazi, and Abdul Mujeeb-Kazi. "An Overview of Omics for Wheat Grain Quality Improvement." In Crop Improvement, 307–44. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_10.

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Chandna, Ruby, and Khalid Rehman Hakeem. "From Agronomy to Molecular Genetics and Proteomics in an Effort to Improve Nitrogen Use Efficiency in Crops." In Crop Improvement, 345–62. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_11.

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Rasool, Saiema, Muneeb U. Rehman, Mohamed Mahgoub Azooz, Muhammad Iqbal, Tariq Omar Siddiqi, and Parvaiz Ahmad. "Arsenic Toxicity and Tolerance Mechanisms in Plants: An Overview." In Crop Improvement, 363–78. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_12.

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Sharma, Iti. "Arsenic Stress in Plants: An Inside Story." In Crop Improvement, 379–400. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_13.

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Siddiqui, Zahid Hameed, Abdul Mujib, Mahmooduzzafar, Junaid Aslam, Khalid Rehman Hakeem, and Talat Parween. "In vitro Production of Secondary Metabolites Using Elicitor in Catharanthus roseus: A Case Study." In Crop Improvement, 401–19. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_14.

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Miransari, Mohammad. "Handling Soybean (Glycine max L.) Under Stress." In Crop Improvement, 421–39. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_15.

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Benzarti, Maali, Kilani Ben Rejeb, Ahmed Debez, and Chedly Abdelly. "Environmental and Economical Opportunities for the Valorisation of the Genus Atriplex: New Insights." In Crop Improvement, 441–57. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_16.

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Wimalasekara, Rinukshi, and Günther F. E. Scherer. "Dealing with Environmental Stresses: Role of Polyamines in Stress Responses." In Crop Improvement, 459–83. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-7028-1_17.

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Conference papers on the topic "Crop improvement"

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Hallauer, Arnel R. "Improvement of Corn Germplasm." In Proceedings of the 1992 Crop Production and Protection Conference. Iowa State University, Digital Press, 1993. http://dx.doi.org/10.31274/icm-180809-437.

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Raikar, Komal, Sushopti Gawade, and Varsha Turkar. "Usability improvement with crop disease management as a service." In 2017 International Conference on Recent Innovations in Signal processing and Embedded Systems (RISE). IEEE, 2017. http://dx.doi.org/10.1109/rise.2017.8378221.

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Benning, Jamie, and Chad Ingels. "Providing service and suport to watershed improvement projects accress Iowa." In Proceedings of the 21st Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2009. http://dx.doi.org/10.31274/icm-180809-4.

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Nasirzadehdizaji, Rouhollah, Fusun Balik Sanli, Ziyadin Cakir, and Elif Sertel. "Crop Mapping Improvement by Combination of Optical and SAR datasets." In 2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics). IEEE, 2019. http://dx.doi.org/10.1109/agro-geoinformatics.2019.8820604.

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Serguntsov, Alexander, and Stanislav Kozhevnikov. "Improvement of stubble crop processing with a multi-purpose unit." In 13TH INTERNATIONAL SCIENTIFIC CONFERENCE ON AERONAUTICS, AUTOMOTIVE AND RAILWAY ENGINEERING AND TECHNOLOGIES (BulTrans-2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0099971.

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Yusof, Zulkhairi Mohd, Md Masum Billah, Kushsairy Kadir, Abdul Malik Mohd Ali, and Izanoordina Ahmad. "Improvement of Crop Production: Design of a Smart Irrigation System." In 2019 IEEE International Conference on Smart Instrumentation, Measurement and Application (ICSIMA). IEEE, 2019. http://dx.doi.org/10.1109/icsima47653.2019.9057328.

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Kumar, Arun, Anil Kumar, and Amit K. Vishwakarma. "Improvement of Complex Background Crop Image Segmentation using Sparse PSO." In 2023 IEEE 7th Conference on Information and Communication Technology (CICT). IEEE, 2023. http://dx.doi.org/10.1109/cict59886.2023.10455540.

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Reeg, Patrick, Peter Kyveryga, and Tristan Mueller. "Continuous improvement in the areas of crop, nutrient, pest and soil and water management." In Proceedings of the 24th Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2014. http://dx.doi.org/10.31274/icm-180809-142.

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Saha, Arnab Kumar, Jayeeta Saha, Radhika Ray, Sachet Sircar, Subhojit Dutta, Soummyo Priyo Chattopadhyay, and Himadri Nath Saha. "IOT-based drone for improvement of crop quality in agricultural field." In 2018 IEEE 8th Annual Computing and Communication Workshop and Conference (CCWC). IEEE, 2018. http://dx.doi.org/10.1109/ccwc.2018.8301662.

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"Genome editing in wheat: exploration of new challenges for crop improvement." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Novosibirsk ICG SB RAS 2021, 2021. http://dx.doi.org/10.18699/plantgen2021-096.

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Reports on the topic "Crop improvement"

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Eshed, Yuval, and Sarah Hake. Exploring General and Specific Regulators of Phase Transitions for Crop Improvement. United States Department of Agriculture, November 2012. http://dx.doi.org/10.32747/2012.7699851.bard.

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The transition of plants from a juvenile to adult growth phase entails a wide range of changes in growth habit, physiological competence and composition. Strikingly, most of these changes are coordinated by the expression of a single regulator, micro RNA 156 (miR156) that coordinately regulates a family of SBP genes containing a miR156 recognition site in the coding region or in their 3’ UTR. In the framework of this research, we have taken a broad taxonomic approach to examine the role of miR156 and other genetic regulators in phase change transition and its implication to plant development and crop improvement. We set to: Determine the common and unique factors that are altered upon juvenile to adult phase transition. Determine the functions of select miR156 target genes in tomato and maize, and identify those targets that mediate phase transition. Characterize the role of miR172 and its targets in tomato phase change. Determine the relationships between the various molecular circuits directing phase change. Determine the effects of regulated manipulation of phase change genes on plant architecture and if applicable, productivity. In the course of the study, a new technology for gene expression was introduced – next generation sequencing (NGS). Hence some of the original experiments that were planned with other platforms of RNA profiling, primarily Affymetrix arrays, were substituted with the new technology. Yet, not all were fully completed. Moreover, once the initial stage was completed, each group chose to focus its efforts on specific components of the phase change program. The Israeli group focused on the roles of the DELAYED SYMPODIAL TERMINATION and FALSIFLORA factors in tomato age dependent programs whereas the US group characterized in detail the role of miR156 (also termed Cg) in other grasses and in maize, its interplay with the many genes encoding miR172.

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Woldeyohanes, Tesfaye, Karl Hughes, Kai Mausch, and Judith Oduol. Adoption of improved grains legumes and dryland cereals crop varieties: A synthesis of evidence. World Agroforestry, 2021. http://dx.doi.org/10.5716/wp21022.pdf.

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Like other crop improvement programs, a key prerequisite for the CGIAR Research Program on Grain Legumes and Dryland Cereals (CRP GLDC) to generate large-scale impact is large-scale adoption. Hence, evidencing the breadth and depth of such adoption is both of intrinsic interest and important for estimating downstream impacts, such as improved food and nutritional security, income, resilience, and soil health. While various GLDC adoption studies have been undertaken, a recent effort to systematically review these studies and synthesize the results is lacking. We undertook such a review, identifying 69 studies and 35 independent country crop combinations (CCCs). To generate aggregated and updated estimates of GLDC improved varietal adoption, we devised and applied a procedure to estimate national cropping areas under such varieties and, in turn, the number of adopting households. Estimates derived from household surveys and expert opinion solicitation are treated with higher and lower levels of confidence, respectively. As of 2019, we estimate from higher confidence studies that improved GLDC crops were cultivated on 15.37 million hectares of land by 17.64 million households in CRP GLDC’s 13 priority countries. With the inclusion of lower confidence studies, these numbers increase to 32 and 44.64 million, respectively. We are further confident that the program exceeded its adoption target of 8.9 million newly adopting households from 2011, particularly when likely spillovers vis-à-vis non-surveyed areas, non-priority countries, and non-priority crops in priority countries are considered.

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Phillip, Dayo, Alejandro Nin-Pratt, Patricia Zambrano, Ulrike Wood-Sichra, Edward Kato, John Komen, Hillary Hanson, José Benjamin Falck-Zepeda, and Judy A. Chambers. Insect-resistant cowpea in Nigeria: An ex ante economic assessment of a crop improvement initiative. Washington, DC: International Food Policy Research Institute, 2019. http://dx.doi.org/10.2499/p15738coll2.133541.

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Trujillo, Sharon, Zachary Parks, and Clifford Unkefer. CRADA LA10C10639-PTS-001 "Crop Transformations and Enzyme Development for Plant Growth and Yield Improvement". Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1343731.

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Vasilikiotis, Christos. Evaluation of cover crop mixtures for weed management and soil fertility improvement in organic agriculture. Ames (Iowa): Iowa State University, January 2018. http://dx.doi.org/10.31274/cc-20240624-659.

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Cai, Xueliang, B. R. Sharma, M. A. Matin, D. Sharma, and S. Gunasinghe. An assessment of crop water productivity in the Indus and Ganges River Basins: current status and scope for improvement. International Water Management Institute; IWMI-TATA Water Policy Research Program, 2010. http://dx.doi.org/10.5337/2010.232.

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Turner, Dylan. Federal programs for agricultural risk management. Washington, D.C.: Economic Research Service, U.S. Department of Agriculture, December 2023. http://dx.doi.org/10.32747/2023.8321812.ers.

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This report provides a broad overview of the Federal programs that are designed to help agricultural producers manage risks to income or profitability caused by natural and economic forces. This report refers to these programs as "risk management programs." Focus is given to risk management programs that are available under the Agriculture Improvement Act of 2018 (i.e., 2018 Farm Bill) with an emphasis on programs for crop and livestock producers that are available under Title I: Commodity Programs or Title XI: Crop Insurance. Available policies for managing production and price risk are discussed with recent trends in program enrollment and outlays provided..--

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Shah, Rakesh. Identification and characterization of orphan genes in rice (Oryza sativa japonica) to understand novel traits driving evolutionary adaptation and crop improvement. Ames (Iowa): Iowa State University, January 2018. http://dx.doi.org/10.31274/cc-20240624-858.

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Bart, Rebecca. Optimizing tradeoffs implicit during bioenergy crop improvement: Understanding the effect of altered cell wall and sugar content on sorghum-associated pathogenic bacteria. Office of Scientific and Technical Information (OSTI), March 2024. http://dx.doi.org/10.2172/2318644.

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Alemu, Dawit, and Tirhas Kinfe. Responses of Rice Farmers Engaged in Vegetable Production: Implications of the Collapse of Vegetable Prices in the Fogera Plain. Institute of Development Studies (IDS), July 2021. http://dx.doi.org/10.19088/apra.2021.017.

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Since the early 1980s, the Fogera Plain has been one of Ethiopia's major rice production areas. The introduction of rice, its commercialisation and the subsequent increased surplus production has led to the ability of smallholder rice farmers to intensify their production through diverse investments, mainly in supplementary irrigation. This has also enabled rice farmers to diversify crop production, mainly during the off-season, through the production of high-value crops like vegetables. Despite this expansion, a recent visit to the Fogera Plain by the authors revealed that most smallholder rice farmers were not able to sell their onions due to the collapse of local markets. To investigate this collapse further, this paper follows the authors' investigation of farmer investments in producing onion, their responses to the collapse of the onion market, and the implications for rural livelihood improvement within the Fogera Plain.

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