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Full-Text Articles in Life Sciences

Citrus Talks-Welcoming Dr. Wickerson (Of U. Of C.), Charles C. Chapman Oct 2014

Citrus Talks-Welcoming Dr. Wickerson (Of U. Of C.), Charles C. Chapman

Charles C. Chapman Citrus Speeches

In this speech Mr. Chapman welcomes Dr. Wickerson of the University of California to a gathering of Farmers in Placentia. He makes some comments about the usefulness of science and technology to horticulture. He also laments the loss of many young men from farming families to employment in the city.


Elderberry In The Garden, Tiffany Maughan, Brent Black Oct 2014

Elderberry In The Garden, Tiffany Maughan, Brent Black

All Current Publications

This fact sheet describes elderberries, including recommended cultivars, how to grow, nutritional value, and uses.


Red Currants In The Garden, Sheridan Hansen, Tiffany Maughan, Brent Black Oct 2014

Red Currants In The Garden, Sheridan Hansen, Tiffany Maughan, Brent Black

All Current Publications

This fact sheet describes red currants, recommended cultivars, how to grow, nutrition, pests and diseases, and uses.


Goosberries In The Garden, Tiffany Maughan, Brent Black Oct 2014

Goosberries In The Garden, Tiffany Maughan, Brent Black

All Current Publications

This fact sheet describes gooseberries, recommended varieties, how to grow them, nutrition, pests and diseases, and uses.


A Comparison Of Northern Utah High Tunnel Strawberry Production Costs And Returns With Low Tunnels, Tiffany Maughan, Kynda Curtis, Brent Black, Dan Drost Oct 2014

A Comparison Of Northern Utah High Tunnel Strawberry Production Costs And Returns With Low Tunnels, Tiffany Maughan, Kynda Curtis, Brent Black, Dan Drost

All Current Publications

This publication uses partial budgets to compare the costs, returns and resulting changes in net income when low tunnels are added to a high tunnel production system.


Controlling Curly Top Virus Of Tomato, Rick Heflebower, Jeff Schalau Sep 2014

Controlling Curly Top Virus Of Tomato, Rick Heflebower, Jeff Schalau

All Current Publications

This fact sheet describes curly top virus of tomato, its symptoms, and ways to control it.


Northern Utah High Tunnel Strawberry Production Costs And Returns, 2014, Tiffany Maughan, Kynda Curtis, Brent Black, Dan Drost Aug 2014

Northern Utah High Tunnel Strawberry Production Costs And Returns, 2014, Tiffany Maughan, Kynda Curtis, Brent Black, Dan Drost

All Current Publications

This fact sheet is intended to be a guide used to make production decisions, determine potential returns and prepare business and marketing plans. All practices, yields, costs, and pricing were determined through a research study conducted at Utah State university across a 3-year period.


Chokecherry In The Garden, Sky Wiser, Tiffany Maughan, Brent Black Jun 2014

Chokecherry In The Garden, Sky Wiser, Tiffany Maughan, Brent Black

All Current Publications

This fact sheet describes chokecherries, recommended varieties, how to grow them, pests and diseases, and uses.


Edamame In The Garden, Dennis Worwood Jun 2014

Edamame In The Garden, Dennis Worwood

All Current Publications

This fact sheet describes edamame, or vegetable soybeans. It provides tips on planting, varieties, fertilization, irrigation, iron chlorosis, weed control, pests and diseases, harvest, cooking and storage, and nutrition.


A High Tunnel For Strong Winds And Space Utility, Ron Patterson Apr 2014

A High Tunnel For Strong Winds And Space Utility, Ron Patterson

All Current Publications

This fact sheet describes modifications to high tunnels for strong winds and space utility.


Reassessment Of Practical Subspecies Identifications Of The Usda Daucus Carota L. Germplasm Collection: Morphological Data, David M. Spooner, Mark P. Widrlechner, Kathleen R. Reitsma, Debra E. Palmquist, Slim Rouz, Zeineb Ghrabi-Gammar, Mohamed Neffati, Béchir Bouzbida, Philipp W. Simon, Mohammed El Koudrim Feb 2014

Reassessment Of Practical Subspecies Identifications Of The Usda Daucus Carota L. Germplasm Collection: Morphological Data, David M. Spooner, Mark P. Widrlechner, Kathleen R. Reitsma, Debra E. Palmquist, Slim Rouz, Zeineb Ghrabi-Gammar, Mohamed Neffati, Béchir Bouzbida, Philipp W. Simon, Mohammed El Koudrim

NCRPIS Publications and Papers

The genus Daucus includes about 20 recognized species. The most widespread and economically important species, Daucus carota L., occurs on almost every continent. The cultivated carrot, subsp. sativus (Hoffm.) Schübl. and G. Martens, has been selected from wild populations that are extremely diverse, especially in the western Mediterranean. The predominant outcrossing and the lack of sexual isolating mechanisms among recognized infraspecific taxa complicate the taxonomy and identification of the wild populations, resulting in widely different interpretations of the number of infraspecific taxa. We measured 36 morphological characters from multiple individuals within each of 155 accessions of D. carota and from ...


2013 Home Demonstration Garden, Cynthia L. Haynes Jan 2014

2013 Home Demonstration Garden, Cynthia L. Haynes

Iowa State Research Farm Progress Reports

Themes for the 2013 Home Demonstration Garden Field Days included: 1) grafted tomatoes, 2) tomatoes in raised beds and bags, 3) colored bell pepper cultivar trials, 4) evening or moon garden, and 5) garden of giants.


Strip-Tillage And Row Cover Use In Organically And Conventionally Grown Muskmelon, Jennifer L. Tillman, Ajay Nair, Jean C. Batzer, Mark L. Gleason Jan 2014

Strip-Tillage And Row Cover Use In Organically And Conventionally Grown Muskmelon, Jennifer L. Tillman, Ajay Nair, Jean C. Batzer, Mark L. Gleason

Iowa State Research Farm Progress Reports

Growing muskmelon in a more sustainable way involves multiple management practices. Cover crops often are incorporated into the soil before planting the cash crop. However, they also can be “rolled” and used as a ground cover throughout the growing season. The cash crop is planted in small, tilled strips within the residue. This “strip-tillage” technique provides a weed-controlling, moisture-retaining mat that does not need to be removed at the season’s end, as plastic mulch does. The reduction in tillage can improve soil structure and health.


Sustainable Plastic Mulch Options For Vegetable Production Systems, Ajay Nair, Brandon H. Carpenter Jan 2014

Sustainable Plastic Mulch Options For Vegetable Production Systems, Ajay Nair, Brandon H. Carpenter

Iowa State Research Farm Progress Reports

The objective of this trial was to evaluate the use of Greenshift plastic mulch in a lettuce production system.


Comparison Of Organic And Conventional Crops At The Neely-Kinyon Long-Term Agroecological Research Site, Kathleen Delate, Andres P. Glasener, Randy J. Breach Jan 2014

Comparison Of Organic And Conventional Crops At The Neely-Kinyon Long-Term Agroecological Research Site, Kathleen Delate, Andres P. Glasener, Randy J. Breach

Iowa State Research Farm Progress Reports

The Neely-Kinyon Long-term Agroecological Research (LTAR) site was established in 1998 to study the long-term effects of organic production in Iowa.


2013 Home Demonstration Garden, Cynthia L. Haynes Jan 2014

2013 Home Demonstration Garden, Cynthia L. Haynes

Iowa State Research Farm Progress Reports

Themes for the 2013 Home Demonstration Garden Field Days included: 1) grafted tomatoes, 2) tomatoes in raised beds and bags, 3) colored bell pepper cultivar trials, 4) evening or moon garden, and 5) garden of giants.


Summer Cover Crop Influence On Fall Vegetable Production, Raymond A. Kruse, Ajay Nair Jan 2014

Summer Cover Crop Influence On Fall Vegetable Production, Raymond A. Kruse, Ajay Nair

Iowa State Research Farm Progress Reports

At the 2012 Fruit and Vegetable Field Day held at the Iowa State University Horticulture Farm, Ames, Iowa, one of the major challenges highlighted by commercial vegetable growers was “weed management.” Growers called for research on sustainable and environmentally conscious (less herbicide) ways of weed management. Use of cover crops to suppress weeds was one of the outcomes of the discussion. The goal of this project was to evaluate and study what advantages exist under Iowa growing conditions for four cover crops to satisfy farmer’s goals. The four cover crops studied were: Buckwheat (cool season broadleaf), Cowpea (warm season ...


2013 Home Demonstration Garden, Cynthia L. Haynes Jan 2014

2013 Home Demonstration Garden, Cynthia L. Haynes

Iowa State Research Farm Progress Reports

Themes for the 2013 Home Demonstration Garden Field Days included: 1) grafted tomatoes, 2) tomatoes in raised beds and bags, 3) colored bell pepper cultivar trials, 4) evening or moon garden, and 5) garden of giants.


Perennial Ryegrass Cultivar Study, Nick E. Christians, Daniel J. Strey, Evan J. Alderman Jan 2014

Perennial Ryegrass Cultivar Study, Nick E. Christians, Daniel J. Strey, Evan J. Alderman

Iowa State Research Farm Progress Reports

The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was established in September 2010 as a part of the NTEP program. It contains 88 perennial ryegrass cultivars.


Turf-Type Tall Fescue Cultivar Study, Daniel J. Strey, Nick E. Christians Jan 2014

Turf-Type Tall Fescue Cultivar Study, Daniel J. Strey, Nick E. Christians

Iowa State Research Farm Progress Reports

The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was established in September 2012 as a part of the NTEP program. Data will be collected over the next five years. This was the first year data was collected on this trial. It contained 16 turf-type tall fescue cultivars.


The Use Of Imidacloprid Patches To Control Japanese Beetles On Roses, Daniel J. Strey, Nick E. Christians, Nicholas P. Howell Jan 2014

The Use Of Imidacloprid Patches To Control Japanese Beetles On Roses, Daniel J. Strey, Nick E. Christians, Nicholas P. Howell

Iowa State Research Farm Progress Reports

The past few years have been difficult for rose growers in the Midwest region due to an increase in Japanese beetle (Popillia japonica) populations. Japanese beetles can cause damage to many different areas on the rose plant. Their first target is normally the rose bud, feeding on pollen. Damage appears as a small, round hole going through the side of the flower bud. Buds that are able to fully open are normally the next target. The damage to the flowers is a small hole in the flower petals. As beetle populations increase, and after the first bloom of the rose ...


Evaluation Of Mechanized Row Cover Establishment For Cantaloupe And Summer Squash, H. Mark Hanna, Brian L. Steward, Kurt A. Rosentrater Jan 2014

Evaluation Of Mechanized Row Cover Establishment For Cantaloupe And Summer Squash, H. Mark Hanna, Brian L. Steward, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Excluding insects by covering rows of cantaloupe or summer squash with spunbond polypropylene material offers an alternative to insecticide application. Labor for manually establishing row covers may be reduced if a satisfactory system to mechanize row cover establishment can be developed. Field tests of a commercial semi-mechanized implement were conducted in medium and coarse soils at two different moisture contents to examine the machine’s ability to successfully insert supporting hoops and lay fabric row cover in these soil conditions. This study also helped identify specific facets which require modification to improve machine performance.

Soil bin tests indicated adequate soil ...


Biochar Application In Potato Production, Ajay Nair, Raymond A. Kruse, Jennifer L. Tillman, Vincent Lawson Jan 2014

Biochar Application In Potato Production, Ajay Nair, Raymond A. Kruse, Jennifer L. Tillman, Vincent Lawson

Iowa State Research Farm Progress Reports

Biochar is an organic amendment produced by the process called pyrolysis, which is the burning of biomass in a limited oxygen environment. It can be produced using different biomass types, for example, switch grass, corn residue, or hardwoods. Potential benefits of biochar in cropping systems could include nutrient recycling, soil conditioning, and long-term carbon sequestration. Research in corn and soybean production systems has shown promising results with biochar application, however, research in vegetable cropping systems is lacking.


Strip-Tillage And Row Cover Use In Organically And Conventionally Grown Summer Squash, Jennifer L. Tillman, Ajay Nair, Jean C. Batzer, Mark L. Gleason Jan 2014

Strip-Tillage And Row Cover Use In Organically And Conventionally Grown Summer Squash, Jennifer L. Tillman, Ajay Nair, Jean C. Batzer, Mark L. Gleason

Iowa State Research Farm Progress Reports

Growing summer squash in a more sustainable way involves multiple management practices. Cover crops often are incorporated into the soil before planting a cash crop. However, they can also be “rolled” and used as a ground cover throughout the growing season. The cash crop is planted in small, tilled strips within the residue. This “strip-tillage” technique provides a weed-controlling, moisture-retaining mat that does not need to be removed at the season’s end, as plastic mulch does. The reduction in tillage can improve soil structure and health.


The Effects Of Temperature And Light In High Tunnel Primocane Red Raspberry Production—Year 2, Leah B. Riesselman, Gail R. Nonnecke Jan 2014

The Effects Of Temperature And Light In High Tunnel Primocane Red Raspberry Production—Year 2, Leah B. Riesselman, Gail R. Nonnecke

Iowa State Research Farm Progress Reports

Climatic factors found in tunnels of the Midwest may show negative effects to primocane growth and development of raspberry. Researchers have found that as air and root-zone temperature exceed 24°C (75.2°F) and 16°C (60.8°F), respectively, the following plant development occurs: decrease in water uptake by primocanes, premature dormancy of lateral and axillary buds, delayed time to fruit ripening, and reduced fruit quality and weight. In addition to temperature, high light (irradiance) causes a decline of fruit yield and quality. Premature dormancy and delayed time-to-flowering occur when irradiance exceed 600 μmol·mˉÇs ...


Integrating Cover Crops In High Tunnel Crop Production, Ajay Nair, Brandon H. Carpenter, Jennifer L. Tillman, Dana L. Jokela Jan 2014

Integrating Cover Crops In High Tunnel Crop Production, Ajay Nair, Brandon H. Carpenter, Jennifer L. Tillman, Dana L. Jokela

Iowa State Research Farm Progress Reports

High tunnels are plastic-covered, passively ventilated and heated structures where crops are grown directly in soil. They have become important tools for Iowa specialty crop producers to increase production of quality crops, extend the season, and increase profitability. The environment in a high tunnel, without rainfall, limited space, and potential climate control requires a unique set of crop management skills. High tunnel production is primarily dominated by tomatoes. Interest among growers focuses on year-round production in high tunnels. A cohesive and focused approach is needed to tackle issues that arise due to continuous production under these structures. One emerging issue ...


Evaluation Of Organic Soybean Varieties And Organic Fertilizer For Organic Popcorn, Kathleen Delate, Andres P. Glasener, Myron C. Rees Jan 2014

Evaluation Of Organic Soybean Varieties And Organic Fertilizer For Organic Popcorn, Kathleen Delate, Andres P. Glasener, Myron C. Rees

Iowa State Research Farm Progress Reports

According to the USDA National Organic Program, certified organic farmers must source organic seed (seed from organically raised crops). The organic seed industry is currently growing in Iowa and the Midwest, and with this growth, organic growers are looking for University-based recommendations on organic varieties to use in Iowa. The Organic Agriculture Program at Iowa State University has been using organic seed at the ISU Southeast Research Farm for 11 years with excellent results. In addition, a new organic fertilizer (Biotic Organic™ 4-4- 4, Perfect Blend, Bellevue, WA) was tested in 2013 for organic popcorn production.


2013 Home Demonstration Garden, Cynthia L. Haynes Jan 2014

2013 Home Demonstration Garden, Cynthia L. Haynes

Iowa State Research Farm Progress Reports

Themes for the 2013 Home Demonstration Garden Field Days included: 1) grafted tomatoes, 2) tomatoes in raised beds and bags, 3) colored bell pepper cultivar trials, 4) evening or moon garden, and 5) garden of giants.


Comparison Of Polymer-Coated Urea Fertilizers, Daniel J. Strey, Nick E. Christians Jan 2014

Comparison Of Polymer-Coated Urea Fertilizers, Daniel J. Strey, Nick E. Christians

Iowa State Research Farm Progress Reports

The objective was to compare the nitrogen release rate and turf response to Polyon 44.5- 0-0 and XCU 43-0-0 on Kentucky bluegrass turf maintained at lawn height.


Evaluation Of Wines From The Cold Hardy Wine Grape Cultivar Trial, Paul Tabor, Paul A. Domoto Jan 2014

Evaluation Of Wines From The Cold Hardy Wine Grape Cultivar Trial, Paul Tabor, Paul A. Domoto

Iowa State Research Farm Progress Reports

In conjunction with the Northeast Regional Research project NE-1020 “Multi-state Evaluation of Wine Grape Cultivars and Clones,” Iowa State University established a cold hardy wine grape cultivar trial in 2008 at the ISU Horticulture Research Station (HRS), Ames, Iowa, and Tabor Home Vineyards and Winery (THV), Baldwin, Iowa. Wines were made from the 2012 crop from six selections growing in the THV plot and were evaluated by winemakers and wine grape growers and non-grower/winemakers at two field days in 2013.