Life Sciences Commons^™

Climate Interactions Drive Tree Physiology And Growth In A Northeastern Forest Ecotone, Alexandra M. Barry

Electronic Theses and Dissertations

Climate change is a threat to global forest ecosystems. In the northeastern United States, forest trees are facing rising temperatures and increasingly inconsistent moisture regimes. In addition to long-term changes in climate conditions, there is concern about the potential for more frequent and intense climate extremes, which can have severe and rapid negative effects on tree physiology and growth. Further, climate extremes may co-occur to produce a greater magnitude of effect than the sum of their parts, with a prominent example being hot droughts, which are increasing in occurrence and severity. The impact of these and other extreme climate interactions …

Influence Of Biochar As A Soil Amendment On Soil Water Content And Wild Blueberry Physiology, Abigayl Novak

Electronic Theses and Dissertations

Maine wild (or lowbush) blueberries (Vaccinium angustifolium Ait.) continue to face challenges imposed by climate change. Reduced frequency of precipitation and increased drought conditions have negatively impacted this crop since it resides in sandy soils with limited retention of water and nutrients. The wild blueberry plants growing in water- and nutrient-poor sandy soils are likely to have poor resilience to drought, resulting in a decline in berry yield during drought years. Thus, there is an urgent need to find a drought management solution for wild blueberries. Compared with other drought management practices, such as irrigation systems, mulching, and adopting drought-resistant …

Extraction And Characterization Of Antifungal Compounds Produced By Lowbush Blueberry Plants In Response To Monilinia Vaccinii-Corymbosi Infection, Sophia Suriano

Honors College

Maine’s wild blueberries are a vital economic and ecological resource for growers, consumers, and researchers alike. Fungal diseases like Monilinia vacciniicorymbosi (MVC) reduce the yield of berries from infected plants by killing plant tissues and damaging fruit. Understanding what blueberry plants use to defend themselves against fungal pathogens can give a greater insight into increasing plant immunity as a whole. This project aims to better understand the wild blueberry antifungal defense response. I extracted bioactive compounds from the healthy leaves of low severity and high severity disease-affected plants and separated the molecules with thin layer chromatography (TLC). Aspergillus sp. acted …

Genetic Characterization Of Centromere-Mediated Uniparental Genome Elimination In Arabidopsis, Diana Spencer

Electronic Theses and Dissertations

The production of haploids through crossing was first discovered from instances of interspecies crosses in Nicotiana spp. in 1924. Since then, haploid induction crosses has been used to improve plant breeding programs and commercially utilized in a number of crop industries. The generation of doubled haploid instantaneously creates a pure homozygous line, therefore eliminating the need for several generations of inbreeding. There are several pathways to induce haploids in plants: of these methods, centromere-mediated genome elimination pathway engenders the highest haploid induction rate (HIR) with up to 45% in Arabidopsis compared to 15% through phospholipase-mediated haploid induction in maize. Centromere-mediated …

Mp765: Creating The Orono Bog Boardwalk: A Facility For Education, Research, And Recreation, Ronald B. Davis

Miscellaneous Publications

A memoir by Dr. Ronald Davis detailing the creation of the Orono Bog Boardwalk. The Orono Bog Boardwalk is a premier destination in the Bangor/Orono area for persons wishing to experience the beauty and fascinating plants and animals of a Maine bog. The 1-mile boardwalk loop trail begins at the forested wetland edge in the Bangor City Forest, and after 800 feet crosses the Orono town line into the portion of the Orono Bog owned by the University of Maine. Along the way the boardwalk passes through a wide range of changing vegetation and environments on its way to the …

Functional Diversity In Blueberries And Their Responses To Extreme Drought, Pratima Pahadi

Electronic Theses and Dissertations

Climate change is expected to lead to novel climate conditions with an increase in frequency and severity of drought across many places around the globe including the north-eastern (NE) United States. Therefore, experimental studies that test the impacts of changing environmental conditions over long time scales or experimental studies that mimic these conditions are crucial to understand the potential impact on crops in this region. Wild lowbush blueberries and highbush blueberries are two important crops in NE USA. In this study, the leaf functional, structural, nutrient traits across genotypes of wild blueberries (Vaccinium angustifolium and V. myrtilloides) at …

Tree Responses To Moderate And Extreme Drought In The Northeastern United States, Ruth A. Van Kampen

Electronic Theses and Dissertations

Climate change is expected to lead to novel drought conditions in the Northeastern United States. Therefore, experimental studies that mimic these conditions are crucial to understand the potential impact on forests. Further, recent large scale dendrochronological studies suggest that spring and summer droughts may immediately impact tree growth while fall droughts may cause delayed impacts on growth the following growing season. Therefore, in this study, we investigated the impacts of six-week-long spring, summer, and fall droughts on the physiology and intra-annual growth on 288 saplings of six tree species native to the Northeastern United States. These species (deciduous broadleaf angiosperms, …

Characterization Of Dickeya Dianthicola And Pectobacterium Parmentieri Causing Blackleg And Soft Rot On Potato, Tongling Ge

Electronic Theses and Dissertations

Potato blackleg and soft rot (PBSR), which can be caused by Dickeya spp. and Pectobacterium spp., is a serious problem worldwide. The recent outbreak of PBSR in the Northeastern USA, caused primarily by D. dianthicola, has resulted in significant economic losses since 2015. This seedborne disease is highly associated with and therefore spread by seed tuber distribution. To understand how the outbreak occurred and where the pathogen originated, a total of 1204 potato samples were collected from 11 northeastern states from 2015 to 2020. All the samples were processed for bacterial isolation and DNA extraction. Dickeya dianthicola and P. …

Microsite Requirements For Successful Regeneration In Lowland Northern White-Cedar (Thuja Occidentalis) Forests, Jeanette Allogio

Electronic Theses and Dissertations

Declines in stands of northern white-cedar (Thuja occidentalis L., hereafter cedar) have been observed as both shifts in species composition and reductions in cedar densities, particularly those stands in lowland sites (Curtis 1946, Boulfroy 2012). While several factors inhibiting cedar regeneration have been identified, a thorough understanding of the conditions that best promote regeneration is lacking. Our objectives for the first chapter were to characterize the site conditions associated with successful regeneration in lowland cedar stands and to describe how spatial patterns of various cedar size classes relate to site preference and to regeneration dynamics. These objectives were achieved …

The Dispersal Pattern Of Thekopsora Minima In Wild Blueberry Determined By A Molecular Detection Method, Nghi Nguyen

Electronic Theses and Dissertations

Blueberry rust caused by Thekopsora minima is a common disease in wild blueberry (Vaccinium angustifolium) and other Vaccinium genera. Understanding the spore dispersal pattern and disease cycle of fungal pathogens in wild blueberry is crucial for the development of a more efficient disease management program. Molecular assays for rapid detection and quantification of Thekopsora minima were developed to be incorporated with a spore trap sampling method and weather data collection to examine spore dispersal pattern and production in three different fields: Blueberry Hill Farm in Jonesboro, East Machias, and Spring Pond in Deblois, Maine, in three years 2014, …

Flower Visitation In Relation To Pollen And Nectar Nutrition: Implications For Pollinator Habitat And Conservation, Megan E. Leach

Electronic Theses and Dissertations

Pollination of both wild and crop plants is at a crossroads; honey bee populations are experiencing losses at a higher rate than ever before, and some native bee species are declining in abundance to the point of being listed as endangered species. A few examples of these threats include pesticide exposure, habitat loss, and climate change. In response to bee population declines, conservation efforts have been initiated to increase habitat quality for bees by planting pollinator reservoirs or gardens. Plants provide nutrition to bees in the form of pollen and nectar. Several studies have shown links between higher nutritional quality …

Propagation And Container Production Of The Amelanchier Spicata Complex, Gregory J. Melcher

Electronic Theses and Dissertations

Amelanchier is a genus in the Rosaceae containing shrubs and trees indigenous to North America that possess traits valued by the horticulture industry. Amelanchier spicata (dwarf serviceberry), a heterogeneous complex of hybrids indigenous to eastern North America, has agricultural and ornamental merit with notable characteristics. White blossoms emerge in early spring, edible pomes ripen in the summer, and vibrant, orange foliage occurs in the fall. I investigated phenological and physiological factors influencing adventitious rooting of stem cuttings, the effects of nitrogen source on the development of seedlings grown in container culture, and phenotypic variation among seedlings of A. spicata from …

Assessing The Biological Condition Of Maine Streams And Rivers Using Benthic Algal Communities, Thomas John Danielson

Electronic Theses and Dissertations

The purpose of this study was to test and develop algal methods of evaluating the condition of Maine streams and rivers. The primary objective was to develop a statistical model to predict attainment of Maine's aquatic life criteria for water quality classes A, B, and C. I collected 298 samples of algae on rocks from 193 locations across the state. The major pattern in species composition related to conversion of forests to urban, residential, and agricultural land uses. I calculated preferred environmental conditions of 236 algal taxa for 1) concentrations of nitrogen, phosphorus, and dissolved ions in the water, 2) …

Plant Controls Of Terrestrial Trace Gas Fluxes: Legumes, Microbes, Co And Hydrogen, Gary M. King

University of Maine Office of Research Administration: Grant Reports

This research seeks to determine the role of plant-microbe interactions on the production and fate of key trace gases in the atmosphere, particularly carbon monoxide (CO) and hydrogen (H2). Recent observations have revealed that the roots of all plants produce CO, and that the roots of nitrogen-fixing plants (Fabacae, commonly legumes) produce large amounts of both CO and H2. Production of these gases provides the basis for an interaction of plant roots with soil microbes that oxidize CO and H2. Field and greenhouse studies will involve a variety of cultivated and non-cultivated legumes and other plant taxa. Experimental analyses will …

Collaborative Research: Developing Methods To Study Age-Related Changes In The Physiology Of Forest Trees, Michael S. Greenwood

University of Maine Office of Research Administration: Grant Reports

Trees continue to increase in size and complexity over life spans that may last many centuries, and each year the growing regions of their shoots produce new foliage and reproductive structures. As they grow older and larger, forest trees appear to grow more slowly, produce thicker foliage and more reproductive structures. These changes are likely to be associated with age-related declines in the growth rates of forest stands, which occur before the mid-point of the lifespan of important timber species. Although similar patterns of age- and size-related change in the morphology and physiology of foliage have been described for numerous …

2001 Wild Blueberry Csrees Project Reports, Alfred A. Bushway, Mary Ellen Camire, Kathy Davis-Dentici, Michael Dougherty, Kathleen Buzzard, Rodney J. Bushway, Kristi Crowe, Brian Perkins, Darrell W. Donahue, Frank Drummond, Judy Collins, Rose Mary Seymour, Maya Panangadan, Maribeth Haines, Heather Mclaughlin, S L. Annis, C S. Stubbs, John M. Smagula, Walter Litten, Karen Loennecker, Adam Nielsen, David E. Yarborough, Timothy M. Hess, John Jemison

Wild Blueberry Research Reports

The 2001 edition of the Wild Blueberry CSREES Progress Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Effect of Wild Blueberry Products on Oxidation in Meat Based Food Systems

2. Factors Affecting the Microbial and Pesticide Residues Levels on Wild Blueberries

3. Determination of Pesticide Residue Levels in Fresh and Processed Wild Blueberries

4. Separation of Maggot-Infested Wild Blueberries in the IQF Processing Line

5. Water Use of Wild Blueberries and the Impact of Plant Water …

Localization Of Expansin Expression During Adventitious And Lateral Rooting In Response To Auxin In Loblolly Pine, Fuyu Xu

Electronic Theses and Dissertations

Loblolly Pine is the most important and widely cultivated timber species in the southern United States. Due to its fast growth, it is extensively planted for lumber and pulpwood. Vegetative propagation will enhance gains from genetic improvement of tree species. Rooted-cutting is at present the most reliable non-somatic embryogenesis method for cloning specific genotypes. However, an abrupt decline of adventitious rooting capacity has hindered the application of vegetative propagation in loblolly pine. Unraveling the rooting mechanism may facilitate a way to overcome this barrier. Regulation of lateral and adventitious root formation by auxin has been demonstrated through the application of …

Characterization Of Biochelators, Membrane Redox Systems, And Quinone Reductases From Wood Degrading Basidiomycetes, Weihong Qi

Electronic Theses and Dissertations

Biodegradation of wood by brown rot fungi is dependent upon a non-enzymatic system involving Fenton chemistry. Iron biochelators with molecular weights lower than 1kD are important components in this process. Phenolate biochelators drive a hydroxyl radical generating Fenton reaction by reducing ferric iron. Biochelators may be mineralized or alternately, in some cases oxidized biochelators may be regenerated via a quinone redox cycle. Electron donors for this postulated regeneration have not been identified. Extracellular cellobiose dehydrogenase has also been found to drive the Fenton reaction by generating ferrous iron and hydrogen peroxide. This research compared the production of biochelators and the …

1997 Wild Blueberry Progress Reports, Darrell W. Donahue, Alfred A. Bushway, Mary Ellen Camire, Keith Moore, Rodney J. Bushway, Brian Perkins, Frank A. Drummond, Connie S. Stubbs, Judith A. Collins, Paul Cappiello, John M. Smagula, Scott Dunham, Walter Litten, David E. Yarborough, Timothy M. Hess, John Jemison

Wild Blueberry Research Reports

The 1997 edition of the Wild Blueberry Progress Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Investigation of processing damage of IQF blueberries

2. Use of sorter rejects and wild blueberry puree to prevent warmed over flavor in processed beef patties

3. Factors affecting the quality of IQF wild blueberries

4. Determination of pesticide residue levels in fresh and processed wild blueberries

5. Pollination ecology of wild blueberries in Maine

6. Control tactics for wild blueberry pest insects …

1994 Csrs Research Reports/1994 Blueberry Tax Reports, Mary Ellen Camire, Kamil Belbez, Alfred A. Bushway, Huanli Zhang, Therese M. Work, Dick Work, Rodney J. Bushway, Brian Perkins, John M. Smagula, David E. Yarborough, Timothy M. Hess, Michele C. Marra, Raoul Pelletier, H Y. Forsythe Jr, Judith A. Collins, Frank A. Drummond, Constance S. Stubbs, David H. Lambert, Paul E. Capiello, Scott Dunham, Delmont Emerson, Walter Litten, Youzhi Chen, Kevin J. Sibley, John Jemison

Wild Blueberry Research Reports

The 1994 edition of the CSRS Research Reports/Blueberry Tax Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

CSRS Research Reports

1. Potential Uses for Green and Red Cull Blueberries

2. Preventing the Bleeding of Blueberry Fruit in Bakery Products

3. The Effect of Fertilization and Irrigation on Blueberry Fruit Quality

4. Determination of Pesticide Residue Levels in Freshly Harvested and Processed Lowbush Blueberries

5. The Effect of Mechanical Harvesting on Blueberry Fruit Quality

6. Removing Water from …

1993-94 Progress Report, Warren Hedstrom, James D. Leiby, Michele C. Marra, John M. Smagula, Scott Dunham, Paul E. Capiello, Delmont Emerson, David E. Yarborough, Alfred A. Bushway, Rodney J. Bushway, Lixin Tian, Mary Ellen Camire, Susan Ismail Flint, Youzhi Chen, Richard Work, Therese M. Work, Linda J. Irvine, Francis A. Drummond, Constance S. Stubbs, H Y. Forsythe Jr, Judith A. Collins, Edward R. Huff, David H. Lambert, David E. Yarborough, Timothy M. Hess, Marjorie Hundhammer, Roland Dupuis, Sue Hill, Dick Vervill, Bill Seekins, Kim Mitchell, John Jemison

Wild Blueberry Research Reports

The 1993 edition of the Progress Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Effects of irrigation on lowbush blueberry yield and quality

2. The Economics of investigating irrigation for lowbush blueberries

3. Phosphorus dose/response curve

4. Winter injury protection by potassium

5. Multiple cropping of wild stands

6. Effect of Boron and Calcium on lowbush blueberry fruit set and yield

7. Comparison of N, NP, and NPK fertilizers to correct nitrogen and phosphorus deficiency

8. …

1992 Blueberry Research Progress Reports, Warren Hedstrom, Willem Brutsaert, David Brooks, Alfred A. Bushway, Rodney J. Bushway, Stephanie Baker, Therese M. Work, Linda J. Irvine, Mary Ellen Camire, Susan Ismail Flint, Eben Osgood, Frank A. Drummond, Constance Stubbs, Edward R. Huff, David H. Lambert, David E. Yarborough, Paul E. Capiello, Timothy M. Hess, Gill H. Lemieux, Rene Verrault, Roger Green, Delmont Emerson, H Y. Forsythe Jr, Judith A. Collins, Lixin Tian, John M. Smagula, Michele C. Marra, Kerry Apgar

Wild Blueberry Research Reports

The 1992 Blueberry Research Progress Reports pertain to and report on research conducted in 1991, and were prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1992 CSRS Progress Reports:

1. Investigation of Groundwater Resources

2. Sprinkler Irrigation

3. Investigation of Preprocess Changes Leading to Berry Spoilage

4. Effect of Fertilization and Irrigation on Blueberry Quality

5. Effects of Calcium Salts and Citric Acid on Quality of Canned Lowbush Blueberries

6. Pollination of Lowbush Blueberry by Native Bees

7. Application …

Maine Blueberry Advisory Committee Research Report, H Y. Forsythe Jr, Judith A. Collins, J Riley, David H. Lambert, David E. Yarborough, E A. Osgood, Frank A. Drummond, John M. Smagula, Delmont Emerson, Warren Hedstrom, Alfred A. Bushway, Mary Ellen Camire, Rodney J. Bushway, Susan A. Ismail, Therese M. Work, Linda J. Irvine, Craig J. Schroeder, Jasotha Kugabalasooriar, Richard J. Rowe, Gilles H. Lemieux, Rene Verrault, Paul E. Cappiello, James D. Leiby, Michele C. Marra, Willem Brutsaert, David Brooks, E R. Huff

Wild Blueberry Research Reports

The 1990 edition of the Maine Blueberry Advisory Committee Research Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers with the Maine Agricultural Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Biology and action thresholds of secondary blueberry pests

2. Control of blueberry maggot

3. Control of secondary blueberry pests

4. Application of steam as a method of controlling secondary pest insects on lowbush blueberry: a feasibility study

5. Pollination of the lowbush blueberry by native bees

6. …

Blueberry Advisory Committee Research Report, H Y. Forsythe Jr, Judith A. Collins, David Lambert, John M. Smagula, Tom Degomez, Susan Erich, Mike Goltz, Joan M. King, Rodney J. Bushway, Alfred A. Bushway, Paul R. Hepler, David E. Yarborough, Delmont C. Emerson, Michele Marra

Wild Blueberry Research Reports

The 1988 edition of the Blueberry Advisory Committee Research Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers with the Maine Agricultural Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Monitoring methods, economic injury levels, and action thresholds for blueberry spanworm larvae in vegetative year fields.

2. Control of secondary blueberry pests

3. Control of blueberry maggot

4. Effect of pruning practices on blueberry insect abundance

5. Survey of Fungi Contaminating Lowbush Blueberries

6. Nutrition Survey 1988

7. …

Blueberry Advisory Committee Research Report, H Y. Forsythe Jr, Jeffrey Holmes, F L. Caruso, M G. Zuck, John M. Smagula, Edward J. Mclaughlin, Jeff Risser, Mike Goltz, Dana Nelson, Sharon Roberts, Judy Gates, Moody F. Trevett, Tom Cs Yang, David E. Yarborough, Antonia L. Hoelper, D C. Emerson

Wild Blueberry Research Reports

The 1984 edition of the Blueberry Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers with the Maine Agricultural Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Control, biology, and ecology of insects affecting lowbush blueberries .

2. Chemical control of mummyberry disease (Monilinia vaccinii-corymbosi)

3. New Fungicides for control of Botrytis blossom blight

4. Nutritional survey of selected lowbush blueberry fields

5. Interaction of fertility and pruning practices on soil characteristics and lowbush blueberry growth and …

Blueberry Progress Reports, James F. Dill, H Y. Forsythe Jr, Kathy Flanders, Frank L. Caruso, Michael G. Zuck, Gwen Wilcox, John M. Smagula, Edward J. Mclaughlin, Mike Goltz, Jeff Risser, Delmont Emerson, John Harker, Judy Gates, Sharon Roberts, Amr A. Ismail, David E. Yarborough, Delmont C. Emerson, Tom Cs Yang

Wild Blueberry Research Reports

The 1983 edition of the Blueberry Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers with the Maine Agricultural Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Introduction

2. Forest Tent Caterpillar in Blueberries

3. Control, Biology, and Ecology of Insects Affecting Lowbush Blueberries

4. Blueberry Diseases: Incidence and Control

5. Physiology and Culture of the Lowbush Blueberry

6. Weed Control in Lowbush Blueberry Fields

7. Product Development of Lowbush Blueberries

B753: The Uptake Of Nutrients By Katahdin Potatoes As Influenced By Soil Moisture Regimes And Rates Of Fertilization, Gurbachan Singh Kalra, Roland A. Struchtemeyer

Bulletins

In Aroostook County, Maine, where the annual average rainfall is 35-40 inches, it is generalized by many that moisture is not a limiting factor in potato production. Weather data for Aroostook do, however, show frequent periods of low rainfall during the growing season, and these periods do cause temporary moisture deficiencies in the crop. Struchtemeyer, based on irrigation research in Maine, showed that the potato plant needs approximately 1 inch of water per week during the growing season. From the 1936 to 1955 Maine Weather Records, Pullen and Schrumpf (23) found that about 70 percent of the time, less than …

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix F: Terrestrial Ecosystem Analysis (Supplement), New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

Construction of the proposed Dickey-Lincoln School Lakes Project in Aroostook County, Maine will result in the isolation of an area of land due to the impoundment behind Dickey Dam. This land area is located between the United States - Canadian border, the Little Black River, the impoundment (elevation = 913 feet), the Big Black River, and the Shields Branch of the Big Black River, and comprises 183,768 acres of land. A previous report (ERT, 1977) determined the forest types within two miles of the impoundment but did not extend to the Canadian border. This report addresses the forest types

Blueberry Research Progress Report, G R. Benoit, W J. Grant, Amr A. Ismail, Howard Y. Forsythe Jr, Paul R. Hepler, Arlen D. Draper, John M. Smagula, D C. Mcgee, Homer B. Metzger, Stewart Goltz, Alan Langille, Ruth H. True

Wild Blueberry Research Reports

The 1976 edition of the Blueberry Research Progress Report was prepared for the Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Effect of Plant-Water Stress on "Lowbush" Blueberry Growth, Yield and Quality

2. Insects Affecting the Blueberry

3. The Development of Blueberry Varieties Adapted to Maine

4. Weed Control in Blueberry Fields

5. Pruning of Blueberries

6. Integrated Management of Blueberry Fields

7. The Physiology and Biochemistry of the Development of the Lowbush Blueberry Fruit

8. Survey of Red Leaf Disease of Blueberries

9. Blossom Blight of Blueberries

10. Blueberry Marketing …

Blueberry Research Progress Report, Howard Y. Forsythe Jr, Amr A. Ismail, Said A. Goueli, Paul R. Hepler, Arlen D. Draper, John M. Smagula, Stewart Goltz, Alan Langille, Thomas E. Christensen, Homer B. Metzger, Ruth H. True

Wild Blueberry Research Reports

The 1975 edition of the Blueberry Research Progress Report was prepared for the Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Insects Affecting the Blueberry

2. Weed Control in Blueberry Fields

3. Pruning of Blueberries

4. Integrated Management of Blueberry Fields

5. Selective Thinning of Black Barrenberries in Lowbush Blueberry Fields with Ethrel

6. The Physiology and Biochemistry of the Development of the Lowbush Blueberry Fruit

7. The Development of Blueberry Varieties Adapted to Maine

8. Factors Regulating Rhizome Initiation and Development in the Lowbush Blueberry

9. Mechanical Blueberry Harvesting

10. …