Match!
Ixchel M. Hernandez-Ochoa
University of Florida
11Publications
2H-index
17Citations
Publications 12
Newest
Global gridded climate–crop model ensembles are increasingly used to make projections of how climate change will affect future crop yield. However, the level of certainty that can be attributed to such simulations is unknown. Here, using currently available geospatial datasets and a widely employed simulation procedure, we created a wheat model ensemble of 1,440 global simulations of 20 climate scenarios, 3 crop models, 4 parameterization strategies and 3 management inputs of sowing date. We qua...
1 CitationsSource
#1Omer Vanli (ITU: Istanbul Technical University)H-Index: 1
#2Burak Berk Ustundag (ITU: Istanbul Technical University)H-Index: 7
Last.Gerrit Hoogenboom (UF: University of Florida)H-Index: 55
view all 5 authors...
The extreme temperatures and uneven distribution of rainfall associated with climate change are expected to affect agricultural productivity and food security. A study was conducted to evaluate the impact of climate change on wheat in southeastern regions of Turkey. The CERES-wheat crop simulation model was calibrated and evaluated with data from eight surveyed farms. The four farms were used for calibration and four for evaluation. Climate change scenarios were developed for the middle (2036–20...
1 CitationsSource
#1Ixchel M. Hernandez-Ochoa (UF: University of Florida)H-Index: 2
#2Diego Notello Luz Pequeno (CIMMYT: International Maize and Wheat Improvement Center)
Last.Senthold Asseng (UF: University of Florida)H-Index: 45
view all 12 authors...
Abstract Mexico’s 3.3 million tons current wheat production is projected to decline due to climate change. To counteract these negative impacts, we explored a range of plausible adaptation measures including change in crop management (early sowing and nitrogen fertilizer applications), crop genetic traits (early vigor, late flowering and heat tolerance) and wheat growing area expansion. Adaptation measures were simulated individually and in various combinations with a multi-crop model and multi-...
Source
#1Jose Rafael Guarin (UF: University of Florida)H-Index: 2
#2Lisa Emberson (SEI: Stockholm Environment Institute)H-Index: 35
Last.Senthold Asseng (UF: University of Florida)H-Index: 45
view all 6 authors...
Wheat is an important staple crop sensitive to negative effects from elevated tropospheric ozone (O3) concentrations, but the impacts of future O3 concentrations on wheat production in Mexico are unknown. To determine these impacts, the O3-modified DSSAT-NWheat crop model was used to simulate wheat production in Mexico using a baseline scenario with pre-industrial O3 concentrations from 1980 to 2010 and five Global Climate Models (GCMs) under the Representative Concentration Pathway (RCP) 8.5 sc...
Source
#1Chuang Zhao (UF: University of Florida)
#2Bing Liu (UF: University of Florida)H-Index: 8
Last.Senthold Asseng (UF: University of Florida)H-Index: 45
view all 15 authors...
Abstract Crop models are important tools for assessing the impact of climate change on crop production. While multiple models have been developed over the past decades for the major food and fiber crops such as wheat, maize, soybean, rice, and cotton, there are few or none for many other crops. The goal of this study was to develop a simple generic crop model (SIMPLE) that could be easily modified for any crop to simulate development, crop growth and yield. The crop model SIMPLE includes 13 para...
Source
#1Ixchel M. Hernandez-Ochoa (UF: University of Florida)H-Index: 2
#2Senthold Asseng (UF: University of Florida)H-Index: 45
Last.Gerrit Hoogenboom (UF: University of Florida)H-Index: 55
view all 11 authors...
Abstract Wheat is one of the most important cereal crops in Mexico, but the impact of future climate change on production is not known. To quantify the impact of future climate change together with its uncertainty, two wheat crop models were executed in parallel, using two scaling methods, five Global Climate Models (GCMs) and two main Representative Concentration Pathways (RCPs) for the 2050s. Simulated outputs varied among crop models, scaling methods, GCMs, and RCPs; however, they all project...
8 CitationsSource
In the future, climate change will challenge food security by threatening crop production. Humid subtropical regions play an important role in global food security, with crop rotations often including wheat (winter crop) and soybean and maize (summer crops). Over the last 30 years, the humid subtropics in the Northern Hemisphere have experienced a stronger warming trend than in the Southern Hemisphere, and the trend is projected to continue throughout the mid- and end of century. Past rainfall t...
Source
#1P. Domínguez (Junta of Andalusia)H-Index: 7
#2Juan J. Medina (Junta of Andalusia)H-Index: 11
Last.Ixchel M. Hernandez-Ochoa (UF: University of Florida)H-Index: 2
view all 9 authors...
ABSTRACTThere is an increasing demand in the market to improve strawberry quality by promoting human-health compounds content, as these may play a significant role in the prevention of chronic diseases. Strawberry cultivars, environmental conditions, and agronomical conditions have an effect on fruit characteristics; therefore, it is necessary to constantly generate information about the cultivar response to different production areas and cultural practices. The goal of this work was to evaluate...
Source
#1Emmanuel A. Torres-Quezada (UF: University of Florida)H-Index: 2
#2Lincoln Zotarelli (UF: University of Florida)H-Index: 18
Last.Ixchel M. Hernandez-Ochoa (UF: University of Florida)H-Index: 2
view all 5 authors...
7 CitationsSource
#1Ixchel M. Hernandez-Ochoa (UF: University of Florida)H-Index: 2
#2Bielinski M. Santos (UF: University of Florida)H-Index: 18
During strawberry transplant establishment, the standard practice is the use of sprinklers delivering water at 4.5 gal/min. This activity is highly inefficient due to the use of large volumes of water with only an estimated 3% of the water ending up in the planting holes. The objective of these studies was to determine the effects of using foliar and root-dip crop protectants on strawberry transplant establishment growth, early marketable yield, and water savings. Two studies were conducted to a...
12