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Articles 1 - 7 of 7
Full-Text Articles in Environmental Sciences
Multiple Post-Domestication Origins Of Kabuli Chickpea Through Allelic Variation In A Diversification-Associated Transcription Factor, R. Varma Penmetsa, Noelia Carrasquilla-Garcia, Emily M. Bergmann, Lisa Vance, Brenna Castro, Mulualem T. Kassa, Birinchi K. Sarma, Subhojit Datta, Andrew D. Farmer, Jong Min Baek, Clarice J. Coyne, Rajeev K. Varshney, Eric J.B. Von Wettberg, Douglas R. Cook
Multiple Post-Domestication Origins Of Kabuli Chickpea Through Allelic Variation In A Diversification-Associated Transcription Factor, R. Varma Penmetsa, Noelia Carrasquilla-Garcia, Emily M. Bergmann, Lisa Vance, Brenna Castro, Mulualem T. Kassa, Birinchi K. Sarma, Subhojit Datta, Andrew D. Farmer, Jong Min Baek, Clarice J. Coyne, Rajeev K. Varshney, Eric J.B. Von Wettberg, Douglas R. Cook
College of Agriculture and Life Sciences Faculty Publications
Chickpea (Cicer arietinum) is among the founder crops domesticated in the Fertile Crescent. One of two major forms of chickpea, the so-called kabuli type, has white flowers and light-colored seed coats, properties not known to exist in the wild progenitor. The origin of the kabuli form has been enigmatic. We genotyped a collection of wild and cultivated chickpea genotypes with 538 single nucleotide polymorphisms (SNPs) and examined patterns of molecular diversity relative to geographical sources and market types. In addition, we examined sequence and expression variation in candidate anthocyanin biosynthetic pathway genes. A reduction in genetic diversity and extensive genetic …
Pyrogenic Fuels Produced By Savanna Trees Can Engineer Humid Savannas, William J. Platt, Darin P. Ellair, Jean M. Huffman, Stephen E. Potts, Brian Beckage
Pyrogenic Fuels Produced By Savanna Trees Can Engineer Humid Savannas, William J. Platt, Darin P. Ellair, Jean M. Huffman, Stephen E. Potts, Brian Beckage
College of Agriculture and Life Sciences Faculty Publications
Natural fires ignited by lightning strikes following droughts frequently are posited as the ecological mechanism maintaining discontinuous tree cover and grass-dominated ground layers in savannas. Such fires, however, may not reliably maintain humid savannas. We propose that savanna trees producing pyrogenic shed leaves might engineer fire characteristics, affecting ground-layer plants in ways that maintain humid savannas. We explored our hypothesis in a high-rainfall, frequently burned pine savanna in which the dominant tree, longleaf pine (Pinus palustris), produces resinous needles that become highly flammable when shed and dried. We postulated that pyrogenic needles should have much greater influence on fire characteristics …
Conjoint Analysis Of Farmers' Response To Conservation Incentives, David Conner, Jennifer Miller, Asim Zia, Qingbin Wang, Heather Darby
Conjoint Analysis Of Farmers' Response To Conservation Incentives, David Conner, Jennifer Miller, Asim Zia, Qingbin Wang, Heather Darby
College of Agriculture and Life Sciences Faculty Publications
Environmental degradation threatens the long term resiliency of the US food and farming system. While USDA has provided conservation incentives for the adoption of best management practices (BMPs), only a small percentage of farms have participated in such conservation programs. This study uses conjoint analysis to examine Vermont farmers' underlying preferences and willingness-to-accept (WTA) incentives for three common BMPs. Based on the results of this survey, we hypothesize that federal cost share programs' payments are below preferred incentive levels and that less familiar and more complex BMPs require a higher payment. Our implications focus on strategies to test these hypotheses …
Local Adaptation Or Foreign Advantage? Effective Use Of A Single-Test Site Common Garden To Evaluate Adaptation Across Ecological Scales, Eric J.B. Von Wettberg, Edward Marques, Courtney J. Murren
Local Adaptation Or Foreign Advantage? Effective Use Of A Single-Test Site Common Garden To Evaluate Adaptation Across Ecological Scales, Eric J.B. Von Wettberg, Edward Marques, Courtney J. Murren
College of Agriculture and Life Sciences Faculty Publications
No abstract provided.
Farmer Perceptions Of Climate Change: Associations With Observed Temperature And Precipitation Trends, Irrigation, And Climate Beliefs, Meredith T. Niles, Nathaniel D. Mueller
Farmer Perceptions Of Climate Change: Associations With Observed Temperature And Precipitation Trends, Irrigation, And Climate Beliefs, Meredith T. Niles, Nathaniel D. Mueller
College of Agriculture and Life Sciences Faculty Publications
How individuals perceive climate change is linked to whether individuals support climate policies and whether they alter their own climate-related behaviors, yet climate perceptions may be influenced by many factors beyond local shifts in weather. Infrastructure designed to control or regulate natural resources may serve as an important lens through which people experience climate, and thus may influence perceptions. Likewise, perceptions may be influenced by personal beliefs about climate change and whether it is human-induced. Here we examine farmer perceptions of historical climate change, how perceptions are related to observed trends in regional climate, how perceptions are related to the …
Salinity Adaptation And The Contribution Of Parental Environmental Effects In Medicago Truncatula, Ken S. Moriuchi, Maren L. Friesen, Matilde A. Cordeiro, Mounawer Badri, Wendy T. Vu, Bradley J. Main, Mohamed Elarbi Aouani, Sergey V. Nuzhdin, Sharon Y. Strauss, Eric J.B. Von Wettberg
Salinity Adaptation And The Contribution Of Parental Environmental Effects In Medicago Truncatula, Ken S. Moriuchi, Maren L. Friesen, Matilde A. Cordeiro, Mounawer Badri, Wendy T. Vu, Bradley J. Main, Mohamed Elarbi Aouani, Sergey V. Nuzhdin, Sharon Y. Strauss, Eric J.B. Von Wettberg
College of Agriculture and Life Sciences Faculty Publications
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. High soil salinity negatively influences plant growth and yield. Some taxa have evolved mechanisms for avoiding or tolerating elevated soil salinity, which can be modulated by the environment experienced by parents or offspring. We tested the contribution of the parental and offspring environments on salinity adaptation and their potential underlying mechanisms. In a two-generation greenhouse experiment, we factorially manipulated salinity concentrations for genotypes of Medicago truncatula …
Farmer Perceptions Of Climate Change Risk And Associated On-Farm Management Strategies In Vermont, Northeastern United States, Rachel E. Schattman, David Conner, V. Ernesto Méndez
Farmer Perceptions Of Climate Change Risk And Associated On-Farm Management Strategies In Vermont, Northeastern United States, Rachel E. Schattman, David Conner, V. Ernesto Méndez
College of Agriculture and Life Sciences Faculty Publications
Little research has been conducted on how agricultural producers in the northeastern United States conceptualize climate-related risk and how these farmers address risk through on-farm management strategies. Two years following Tropical Storm Irene, our team interviewed 15 farmers in order to investigate their perceptions of climate-related risk and how their decision-making was influenced by these perceptions. Our results show that Vermont farmers are concerned with both ecological and economic risk. Subthemes that emerged included geographic, topographic, and hydrological characteristics of farm sites; stability of land tenure; hydrological erosion; pest and disease pressure; market access; household financial stability; and floods. Farmers …