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10,788 full-text articles. Page 115 of 218.

Foraging Behavior Of Spring Bees And Their Agricultural Implications, Michael D. Gregory 2017 Old Dominion University

Foraging Behavior Of Spring Bees And Their Agricultural Implications, Michael D. Gregory

Biological Sciences Theses & Dissertations

Colony Collapse Disorder has greatly reduced honey bee populations in the last decade. Native bees have been largely neglected in research, and their floral preferences may have agricultural implications because native bees ameliorate the demand to rely solely on non-native bees. In this work, pollinator visitation to flowers with manipulated ultraviolet floral patterns was monitored. Populations of wild showy golden-eye in Colorado, plus cultivar populations of black-eyed Susan and lawn populations of buttercups in Virginia were monitored for pollinator landings to compare preference for unmanipulated ultraviolet-absorptive floral guide preferences. Another number, a proxy for pollen load, was manipulated on strawberry …


Comparison Of Leaf Water Potential, Stomatal Conductance, And Chlorophyll Fluorescence Between An Invasive Weed, Schinus Molle, And A Native Chaparral Shrub, Ceanothus Spinosus, In The Santa Monica Mountains, Adam L. Fahey, Harry Zhou, Katie Callahan 2017 Pepperdine University

Comparison Of Leaf Water Potential, Stomatal Conductance, And Chlorophyll Fluorescence Between An Invasive Weed, Schinus Molle, And A Native Chaparral Shrub, Ceanothus Spinosus, In The Santa Monica Mountains, Adam L. Fahey, Harry Zhou, Katie Callahan

Seaver College Research And Scholarly Achievement Symposium

The Peruvian peppertree, Schinus molle, is an invasive species in California that has escaped cultivation to competitively exclude native species in the landscape. One example of such competition is between a dominant member of the chaparral shrub community, greenbark ceanothus (Ceanothus spinosus), and S. molle. The mechanism of competitive displacement of chaparral by S. molle is not understood nor has it been previously studied. We hypothesized that during severe drought, such as occurred during the sumer/fall of 2016, S. molle would have a more favorable water balance then its native competitor C. spinosus, eventually leading to higher survival and species …


Hydraulic Mechanisms Of Fungal-Induced Dieback In A Keystone Chaparral Species During Unprecedented Drought In California, Natalie M. Aguirre, Marissa E. Ochoa, Helen I. Holmlund, Frank E. Ewers, Stephen D. Davis 2017 Whittier College

Hydraulic Mechanisms Of Fungal-Induced Dieback In A Keystone Chaparral Species During Unprecedented Drought In California, Natalie M. Aguirre, Marissa E. Ochoa, Helen I. Holmlund, Frank E. Ewers, Stephen D. Davis

Seaver College Research And Scholarly Achievement Symposium

Between 2012-2016, southern California experienced unprecedented drought that caused dieback in Malosma laurina, a keystone species of chaparral shrub communities. Dieback was especially severe in coastal exposures of the Santa Monica Mountains, leading to whole plant mortality exceeding 50% at some sites. We hypothesized that the endophytic fungus causing the dieback, Botryosphaeria dothidea, was successful in invading the xylem tissue of M. laurina because of protracted water stress, carbon starvation, or a combination of the two. We tested these possibilities in a controlled pot experiment by comparing three treatments, each inoculated with the fungus: (1) irrigated controls (2) …


Odor, Not Performance, Dictates Bemisia Tabaci'S Selection Between Healthy And Virus Infected Plants, Gong Chen, Qi Su, Xiaobin Shi, Xin Liu, Zhengke Peng, Huixin Zheng, Wen Xie, Baoyun Xu, Shaoli Wang, Qingjun Wu, Xuguo Zhou, Youjun Zhang 2017 Hunan Agricultural University, China

Odor, Not Performance, Dictates Bemisia Tabaci'S Selection Between Healthy And Virus Infected Plants, Gong Chen, Qi Su, Xiaobin Shi, Xin Liu, Zhengke Peng, Huixin Zheng, Wen Xie, Baoyun Xu, Shaoli Wang, Qingjun Wu, Xuguo Zhou, Youjun Zhang

Entomology Faculty Publications

Although, insect herbivores are generally thought to select hosts that favor the fitness of their progeny, this “mother-knows-best” hypothesis may be challenged by the presence of a plant virus. Our previous study showed that the whitefly, Bemisia tabaci, the obligate vector for transmitting Tomato yellow leaf curl virus (TYLCV), preferred to settle and oviposit on TYLCV-infected rather than healthy host plant, Datura stramonium. The performances of B. tabaci larvae and adults were indeed improved on virus-infected D. stramonium, which is consistent with “mother-knows-best” hypothesis. In this study, B. tabaci Q displayed the same preference to settle and …


The Lx Report Of The Bean Improvement Cooperative No. 60, March 2017., 2017 University of Nebraska - Lincoln

The Lx Report Of The Bean Improvement Cooperative No. 60, March 2017.

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

CONTENTS

LX Annual Report of the Bean Improvement Cooperative xi

BIC Coordinating Committee Membership - 1957 to 2017 . xii

BIC Meritorious Service and Distinguished Achievement Award Recipients - 1957 to 2015 xiii

BIC Awards Nomination Request for 2017 xvi

BIC/NAPIA Meeting in 2017 . xix

In Memory of Guillermo E. Galvez-Enriquez xx

RESEARCH PAPERS FOR 2017

OPTIMIZING SPORULATION OF Pseudocercospora griseola IN VITRO • Paula F. de Pádua1, Rafael Pereira1, Luanna B. W. Gomes1 and Elaine A. de Souza1* 1

FINE MAPPING THE BROAD SPECTRUM ANTHRACNOSE RESISTANCE GENE IN AMENDOIM CAVALO 3 • Gilio, T.A.S.1, Oscar P. Hurtado-Gonzales2, Giseli …


Psychoactive Plants: A Bibliography, James P. Smith Jr 2017 Humboldt State University

Psychoactive Plants: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Grass Floras, Manuals, And Checklist, James P. Smith Jr 2017 Humboldt State University

Grass Floras, Manuals, And Checklist, James P. Smith Jr

Botanical Studies

No abstract provided.


The Systematics Of Vascular Plants: A Bibliography, James P. Smith Jr 2017 Humboldt State University

The Systematics Of Vascular Plants: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Rare, Endangered, And Threatened Grasses Of The Conterminous United States, James P. Smith Jr 2017 Humboldt State University

Rare, Endangered, And Threatened Grasses Of The Conterminous United States, James P. Smith Jr

Botanical Studies

No abstract provided.


Useful Plants – Ethnobotanical Studies: A Bibliography, James P. Smith Jr 2017 Humboldt State University

Useful Plants – Ethnobotanical Studies: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Medical Plants - General References, James P. Smith Jr 2017 Humboldt State University

Medical Plants - General References, James P. Smith Jr

Botanical Studies

No abstract provided.


The Earth's Grass Flora: A Numerical Conspectus (A Comparison Of Seventeen Summaries), James P. Smith Jr 2017 Humboldt State University

The Earth's Grass Flora: A Numerical Conspectus (A Comparison Of Seventeen Summaries), James P. Smith Jr

Botanical Studies

No abstract provided.


Acer Rubrum Wats., Elisabet Ore 2017 Eastern Illinois University

Acer Rubrum Wats., Elisabet Ore

Specimens by Name

No abstract provided.


Acer Pennsylvanicum Du Roi, G. D. H. 2017 Eastern Illinois University

Acer Pennsylvanicum Du Roi, G. D. H.

Specimens by Name

No abstract provided.


Acer Saccharinum L., Paul B. Marcum 2017 Eastern Illinois University

Acer Saccharinum L., Paul B. Marcum

Specimens by Name

No abstract provided.


Myrica Pensylvanica Mirb., Elisabet Ore 2017 Eastern Illinois University

Myrica Pensylvanica Mirb., Elisabet Ore

Specimens by Name

No abstract provided.


Arkansas Soybean Research Studies 2015, Jeremy Ross 2017 University of Arkansas, Fayetteville

Arkansas Soybean Research Studies 2015, Jeremy Ross

Arkansas Agricultural Experiment Station Research Series

Arkansas is the leading soybean-producing state in the mid-southern United States. Arkansas ranked 10th in soybean production in 2015 when compared to the other soybean-producing states in the U.S. The state represents 4.0% of the total U.S. soybean production and 3.7% of the total acres planted to soybean in 2015. The 2015 state soybean average was 49 bushels per acres, 0.5 bushel per acres less than the state record soybean yield set in 2014 (Table 1). The top five soybean-producing counties in 2015 were Mississippi, Desha, Poinsett, Phillips, and Arkansas Counties. These five counties accounted for 35% of soybean production …


Arkansas Cotton Variety Test 2016, Fred Bourland, W. Barnett, C. Kennedy, L. Martin, A. Rouse, B. Robertson 2017 University of Arkansas, Fayetteville

Arkansas Cotton Variety Test 2016, Fred Bourland, W. Barnett, C. Kennedy, L. Martin, A. Rouse, B. Robertson

Arkansas Agricultural Experiment Station Research Series

The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas.


Economic Botany: General References, James P. Smith Jr 2017 Humboldt State University

Economic Botany: General References, James P. Smith Jr

Botanical Studies

No abstract provided.


Exploring For Plants: A Bibliography, James P. Smith Jr 2017 Humboldt State University

Exploring For Plants: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


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