24,373 Hits in 5.5 sec

Study on Suitability Evaluation Model of New Maize Varieties [chapter]

Weili Wang, Xiaodong Zhang, Xiao He
Computer And Computing Technologies In Agriculture, Volume I  
of maize in the district, this paper discussed the suitability evaluation model of new maize varieties based on the characteristic values of new maize varieties (temperature, plant diseases and insect  ...  East of North China as an example, the county for the evaluation unit, on the basis of average daily meteorological data of all meteorological stations in the 50 years and the test data of new varieties  ...  STUDIES ON SUITABILITY EVALUATION MODEL OF NEW MAIZE VARIETIES New maize varieties suitability evaluation can be divided into two types: Given a new maize variety, study its suitability for promotion of  ... 
doi:10.1007/978-0-387-77251-6_50 dblp:conf/ifip12/WangZH07 fatcat:rixdflq6cbh3xc6ubmosojoffm

Research and Implement of Maize Varietypromotion Decision Support System Based Onwebgis [chapter]

Hu Wang, Xiaodong Zhang, Weili Wang, Yuan Zheng
2009 IFIP Advances in Information and Communication Technology  
Furthermore, it integrates varieties' suitability evaluation model and combination model which are also very helpful to the promoting of maize variety.  ...  This study focuses on the design and development of a network platform which can put forward promotion proposal of maize varieties. This platform is based on Visual Studio 2005 + SuperMap IS.  ...  effectively, studies on how to develop a network system, which is based on WebGIS and integrated with the existing suitability evaluation model and combination model.  ... 
doi:10.1007/978-1-4419-0209-2_73 fatcat:qhdy4h26hvdojjurnpsskavmsu

Yield Data Provide New Insight into the Dynamic Evaluation of Maize's Climate Suitability: A Case Study in Jilin Province, China

Jing Zhao, Kaiwei Li, Rui Wang, Zhijun Tong, Jiquan Zhang
2019 Atmosphere  
This paper investigates the climate suitability of spring maize, based on daily data from 50 meteorological stations, and statistics on maize yield and area at the county level in Jilin Province, China  ...  Moreover, good consistency between cultivation patterns, climate suitability and yield show that the late-maturing varieties of maize have gradually moved northward and eastward, and the areas of high  ...  Acknowledgments: We would like to thank the Jilin Institute of Meteorological Science for collecting Maize production dataset. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/atmos10060305 fatcat:mftzalmpmnesxny7ylgaqwguoi

Maize leaf area estimation in different growth stages based on allometric descriptors

Cunha Mario, Pocas Isabel, Estevao Mananze Sosdito
2018 African Journal of Agricultural Research  
The objective of the current study was to develop a model for estimating the LA of maize (Zea mays L.), considering the entire growth cycle, based on non-destructive allometric measurements.  ...  Overall, the selected model presented good performance in the estimation of LA of maize, variety PAN 53, cultivated under the conditions of the present study area.  ...  Evaluation of the regression assumptions and the model validation are very important for verifying the model suitability as a forecasting tool when using observations of new independent variables.  ... 
doi:10.5897/ajar2017.12916 fatcat:4sr5swnu55fina2jhtans7p7nm

Methodological approach for predicting and mapping the phenological adaptation of tropical maize (Zea mays L.) using multi-environment trials

Henri E. Z. Tonnang, Dan Makumbi, Peter Craufurd
2018 Plant Methods  
We used routine multi-environment trials data of diverse tropical maize varieties to: (1) fit 82 temperature dependent phenology models and select the best model for an individual variety, (2) develop  ...  a spatial framework that uses the phenology model to predict at landscape level the length of the vegetative and reproductive phases of diverse varieties of maize in different agro-ecologies.  ...  Acknowledgements This work was implemented by CIMMYT as part of TAMASA (Taking Maize Agronomy to Scale) project in collaboration with IITA and IPNI, made possible by the generous support from Bill and  ... 
doi:10.1186/s13007-018-0375-7 pmid:30555523 pmcid:PMC6284281 fatcat:6oy2uu53uzdcjmf4omeao6ci4u

An Assessment of the Adaptability to Climate Change of Commercially Available Maize Varieties in Zimbabwe

Tinashe Nyabako, Emmanuel Manzungu
2012 Environment and Natural Resources Research  
The FAO's Ecocrop Model was used to assess the suitability of early, short, medium and long season maize varieties grown under rainfed conditions in different agro-ecological regions (1 to 5) whose agricultural  ...  A study was undertaken to assess the adaptability to climate change of commercially available maize varieties in Zimbabwe using 2010, 2020, 2050 and 2080 climate change scenarios.  ...  The earliest study on the impacts of climate change on rainfed maize production in Zimbabwe demonstrated that marginal areas will become less suitable for growing maize producing areas because of a drop  ... 
doi:10.5539/enrr.v2n1p32 fatcat:k5wquvs6jzgu7hjgxoxlfbmkbe

On-farm evaluation of maize varieties in the transitional and savannah zones of Ghana: Determinants of farmer preferences

Maxwell Etwire
2013 Journal of Development and Agricultural Economics  
Promising high yielding, drought and striga tolerant maize varieties are being evaluated by CSIR and IITA in participatory on-farm trials and demonstrations.  ...  Maize is one of the most important food crops in Ghana even though its production has not reached self sufficiency levels.  ...  ACKNOWLEDGEMENTS The authors are grateful to the Drought Tolerant Maize for Africa Project, Phase III, for funding this study.  ... 
doi:10.5897/jdae2013.0462 fatcat:hhasao5phvd6tarmyaypk4zyv4

Applicability of Near Infrared Reflectance Spectroscopy to Predict Amylose Contents of Single-Grain Maize

Qing Dong, Qianqian Xu, Jiandong Wu, Beijiu Cheng, Haiyang Jiang
2021 Agronomy  
To predict the amylose contents of a single seed, a total of 1069 (865 as calibration set, 204 as validation set) single seeds representing 120 maize varieties were analyzed using chemical methods and  ...  Therefore, NIRS will be helpful to breeders for determining the amylose contents of single-grain maize.  ...  bank of the International Maize and Wheat Improvement Center (CIMMYT) for providing the maize samples for this work.  ... 
doi:10.3390/agronomy11122463 fatcat:opex3e7bfbelpdrkgeyznsbvg4

Determinants of Adoption of Improved Open Pollinated Varieties of Maize in Drought Prone Areas of Central Ethiopia

Bedru Beshir, Koichi Usami, Yoshiaki Nishikawa
2013 Journal of Rural Problems  
Yoshiaki Nishikawa (Graduate School of International Development, Nagoya University) 〔 〕 138 ( ) OPVs can be recycled for an average of three years without considerable yield reduction thus, suitable for  ...  On the other hand, hybrids are high yielders, needing more stable moisture conditions and intensive management.  ...  Hence, the Tobit Model is not suitable for the estimation of dichotomous dependent variables.  ... 
doi:10.7310/arfe.49.137 fatcat:ayxexinzvnfttg5fyrdwgfesva

Scenario analysis on the adaptation of different maize varieties to future climate change in Northeast China

Yanhong Xu, Jianping Guo, Junfang Zhao, Jia Mu
2014 Journal of Meteorological Research  
The climatic productivity and the meteorological suitability of maize are found to improve when the planting of resistant varieties is modeled.  ...  Based on gridded meteorological data for the period 1981-2100 from the RegCM3 regional model, the changing trends of climatic resources in Northeast China are analyzed, and the distributions of maize varieties  ...  The abilities of three kinds of resistant varieties to adapt to climate change are evaluated in our study.  ... 
doi:10.1007/s13351-014-3141-4 fatcat:mqrlghpp3zhxhgifkozczwgzda

Early changes in farmers' adoption and use of an improved maize seed: An assessment of the impact of demos and field days

Mercy W. Kamau, Fredrick Bagamba, Claris Riungu, John Mukundi, Robert Toel
2018 African Evaluation Journal  
We used quasi-experimental approaches to determine changes in farmers' adoption behaviour towards a new maize variety, and the subsequent effects on productivity.  ...  of the improved maize variety that was being promoted.  ...  Special thanks to the Director of Tegemeo Institute for support and facilitation of the study team while undertaking the study, and to the team from Pearl Seed Limited, for their collegial attitude and  ... 
doi:10.4102/aej.v6i1.278 fatcat:iaipbqhbm5fofl5vusbwbcs3le

Research on Maize Seed Classification and Recognition Based on Machine Vision and Deep Learning

Peng Xu, Qian Tan, Yunpeng Zhang, Xiantao Zha, Songmei Yang, Ranbing Yang
2022 Agriculture  
Maize is one of the essential crops for food supply.  ...  This study proposes a rapid classification method for maize seeds using a combination of machine vision and deep learning. 8080 maize seeds of five varieties were collected, and then the sample images  ...  Informed Consent Statement: Informed consent was obtained from all subjects involved in the study.  ... 
doi:10.3390/agriculture12020232 fatcat:rctgxaol5raftpk3ua7trcfiyy

Consumer acceptance of quality protein maize (QPM) in East Africa

Hugo De Groote, Nilupa S Gunaratna, James O Okuro, Asrat Wondimu, Christine K Chege, Keith Tomlins
2014 Journal of the Science of Food and Agriculture  
Acceptance tests were, therefore, conducted to evaluate QPM varieties in three East African countries using central location tests with one or two varieties in each country, using the most popular preparations  ...  In total, 281 1 urban and rural consumers of both sexes and varying levels of education evaluated the products on standard sensory criteria: appearance, aroma, texture, taste, and overall, using a Likert  ...  We appreciate the collaboration with the staff and the enumerators of EHNRI, SARI and KARI and thank the participants in this study for their time and effort.  ... 
doi:10.1002/jsfa.6672 pmid:24659349 fatcat:pksy24izyfezncvi5guozwsf2u

Evaluation of New Cassava Varieties for Compatibility with Maize and Cowpea under Intercropping

Musyimi Benjamin Muli
2019 Journal of Agricultural Science and Technology: B  
An experiment was therefore conducted at KALRO-Mtwapa to evaluate the new cassava varieties for their suitability for intercropping with maize and cowpea.  ...  The yields of both maize and cowpea when intercropped with the four cassava varieties did not reveal any significant difference implying that cassava had no effect on the performance of the intercrops.  ...  Acknowledgment The author is grateful to the Centre Director, KARLOI-Mtwapa for provision of facilities. Thanks also go to Dau Mwakina for trial management and data collection.  ... 
doi:10.17265/2161-6264/2019.06.005 fatcat:ktr5wky54ze2flzpj5trbnpok4

Adaptability and stability of maize varieties using mixed model methodology

Flávia Ferreira Mendes, Lauro José Moreira Guimarães, João Cândido Souza, Paulo Evaristo Oliveira Guimarães, Cleso Antônio Patto Pacheco, Jane Rodrigues de Assis Machado, Walter Fernandes Meirelles, Adelmo Resende da Silva, Sidney Netto Parentoni
2012 Crop Breeding and Applied Biotechnology  
Results showed that the method of harmonic means of the relative performance of genetic values is a suitable method for maize breeding programs.  ...  The objective of this study was to evaluate the performance, adaptability and stability of corn cultivars simultaneously in unbalanced experiments, using the method of harmonic means of the relative performance  ...  ACKNOWLEDGEMENTS The authors are indebted to Embrapa Maize and Sorghum and to the different public and private partner institutions that collaborated in the variety assessments, as well as Development  ... 
doi:10.1590/s1984-70332012000200003 fatcat:abirlo7k5rhard4hr6rh54ljeu
« Previous Showing results 1 — 15 out of 24,373 results