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Full-Text Articles in Life Sciences

Cost Estimation Of Wastage Irrigation Water In Arid Public Landscape Areas King Abdullah Park– Dammam, Saudi Arabia, Ali Al-Sulbi Nov 2020

Cost Estimation Of Wastage Irrigation Water In Arid Public Landscape Areas King Abdullah Park– Dammam, Saudi Arabia, Ali Al-Sulbi

Emirates Journal for Engineering Research

The Kingdom of Saudi Arabia (KSA) locates within the territory of tropical deserts where water is one of the most important natural resources. However considerable amount of water has been wasted, on daily bases, in irrigation of public landscaped areas managed by local municipalities. Water wastage related to issues include improper calculation or no calculation of plants water budget; malfunctionality or failure of irrigation system components, tools and equipment; misunderstanding of soil-water and plant relationships; and improper management of irrigation operations. This research aims to estimate the cost of wasted water in association with irrigation of public landscape areas in …


Relating Green Space Characteristics To Student Housing Habits, Joshua Randall Aug 2020

Relating Green Space Characteristics To Student Housing Habits, Joshua Randall

The Journal of Purdue Undergraduate Research

No abstract provided.


A National Survey To Characterize Industrial Hemp (Cannabis Sativa L.) Production Challenges Under Protected Cultivation, William G. Owen, Bridget Behe May 2020

A National Survey To Characterize Industrial Hemp (Cannabis Sativa L.) Production Challenges Under Protected Cultivation, William G. Owen, Bridget Behe

Journal of Agricultural Hemp Research

A nationwide internet survey (n = 134) was conducted to establish the current status of industrial hemp (IH; Cannabis sativa L.) cultivation and characterize protected culture production challenges in the United States. Of the total participants, 65.7% (n = 88) of the subjects reported current production of IH. These participants were asked to identify all production systems and included growing IH indoors (e.g., shipping containers, buildings or warehouses; 15.9%), in greenhouses (29.5%), in hoop houses or high tunnels (15.9%), or in outdoor fields in-ground (62.5%). Of the respondents who identified as growing under protected culture (e.g., indoors, greenhouses, and hoop …


Letter From The Dean, Deacue Fields Jan 2020

Letter From The Dean, Deacue Fields

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Letter From The Faculty And Managing Editors, Beth Kegley, Gail Halleck Jan 2020

Letter From The Faculty And Managing Editors, Beth Kegley, Gail Halleck

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 21 2020, Several Authors Jan 2020

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 21 2020, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Estimation Of Additive And Dominance Effects Of A Mutant Glutathione S-Transferase Gene On Anthocyanin Content In Muscadine Grape (Vitis Rotundifolia), Autumn Brown, Margaret Worthington, Aruna Varanasi, Lacy Nelson, Renee T. Threlfall, Luke R. Howard Jan 2020

Estimation Of Additive And Dominance Effects Of A Mutant Glutathione S-Transferase Gene On Anthocyanin Content In Muscadine Grape (Vitis Rotundifolia), Autumn Brown, Margaret Worthington, Aruna Varanasi, Lacy Nelson, Renee T. Threlfall, Luke R. Howard

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The skin color of muscadine grapes (Vitis rotundifolia) is typically classified as black or bronze. A glutathione S-transferase, VrunGST4, has been identified as a candidate gene for berry skin color in muscadine grapes. A molecular marker was developed within VrunGST4 to distinguish between muscadine genotypes (cultivars and selections) with bronze (T:T), heterozygote black (C:T), and homozygote black (C:C) berries. The objectives of this study were to determine whether there was a correlation between berry skin color and total anthocyanin content and to calculate additive and dominance effects of VrunGST4 in determining total anthocyanins in the berries of two biparental F1 …


The Biofiltration Ability Of Asparagus Densiflorus To Remove Sulfur Dioxide From The Indoor Atmosphere, Rhiannon De La Rosa, Mary Savin Jan 2020

The Biofiltration Ability Of Asparagus Densiflorus To Remove Sulfur Dioxide From The Indoor Atmosphere, Rhiannon De La Rosa, Mary Savin

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Sulfur dioxide is an inorganic compound (IC) and air pollutant that causes health risks in humans. The buildup of sulfur dioxide (SO2) in enclosed indoor spaces is, therefore, a concern to human health, especially since the average person spends 90% of his/her time indoors. This study focused on decreasing SO2 concentration in a cost-effective and simple way—by using botanical biofiltration, or the uptake of pollutants by plants. Research in biofiltration has focused mostly on the remediation of volatile organic compounds (VOC). However, research has also shown that plant species that remediate VOC efficiently also have the potential for efficient IC …


The Economics Of On-Farm Rice Drying In Arkansas, Clayton J. Parker, Lanier Nalley Jan 2020

The Economics Of On-Farm Rice Drying In Arkansas, Clayton J. Parker, Lanier Nalley

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Globally, rice producers are faced with the temporal problem of deciding the optimal time to harvest rice. When harvested, paddy rice is typically at a harvest moisture content (HMC) between 15% and 22% and subsequently dried by the mill to a moisture content (MC) of 12.5%. Riceland Foods Inc., the largest miller of rice in the world, uses a stair-step pricing model to charge farmers to dry, which can complicate the timing of harvest as producers try to balance the tradeoff of minimizing drying costs by waiting to harvest at lower HMC vs. maintaining higher rice quality typically observed when …


Letter From Division Of Agriculture Communications, Fred Miller Jan 2020

Letter From Division Of Agriculture Communications, Fred Miller

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Contents, Discovery Editors Jan 2020

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Instructions For Authors, Discovery Editors Jan 2020

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


2019 National Turfgrass Evaluation Program Bermudagrass Test: Establishment Data, Linda Parsons, Jason J. Griffin, Michael J. Shelton Jan 2020

2019 National Turfgrass Evaluation Program Bermudagrass Test: Establishment Data, Linda Parsons, Jason J. Griffin, Michael J. Shelton

Kansas Agricultural Experiment Station Research Reports

Kansas represents the northernmost region in the central United States where ber­mudagrass (Cynodonspp.) can be successfully grown as a perennial turfgrass. His­torically, few cultivars that have both acceptable quality and adequate cold tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.


2019 Kansas State University Industrial Hemp Cbd Variety Trial, Jason Griffin, Michael J. Shelton, Clint Wilson, Tami Myers Jan 2020

2019 Kansas State University Industrial Hemp Cbd Variety Trial, Jason Griffin, Michael J. Shelton, Clint Wilson, Tami Myers

Kansas Agricultural Experiment Station Research Reports

Hemp is a broad term used to describe the many varieties ofCannabissativaL. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant, but only recently allowed to be grown again in the United States. Varieties have been selected and are currently grown with a wide range of cannabinoid profiles. Cannabinoids are of interest for their putative medical and therapeutic role in humans and pets. Cannabidiol (CBD) and THC are the two cannabinoids of primary interest. THC is of interest because it determines whether the final product is considered hemp (0.3% THC). CBD is of interest …


2019 Kansas State University Industrial Hemp Dual-Purpose And Fiber Trial, Jason Griffin, Kraig Roozeboom, Lucas Haag, Michael Shelton, Clint Wilson, Tami Myers Jan 2020

2019 Kansas State University Industrial Hemp Dual-Purpose And Fiber Trial, Jason Griffin, Kraig Roozeboom, Lucas Haag, Michael Shelton, Clint Wilson, Tami Myers

Kansas Agricultural Experiment Station Research Reports

Hemp is a broad term used to describe the many varieties ofCannabis sativaL. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant, but only recently allowed to be grown again in the United States. Varieties that have numerous industrial uses have been selected for improved fiber and grain production. However, there is no information available regarding adaptability or production of these varieties in Kansas.

In 2019, Kansans were allowed to apply for research licenses to grow industrial hemp. It was assumed the crop would grow well throughout Kansas since there are wild remnant populations of …


Water Requirements Of ‘Meyer’ Zoysiagrass For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley Jan 2020

Water Requirements Of ‘Meyer’ Zoysiagrass For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley

Kansas Agricultural Experiment Station Research Reports

Water restrictions on irrigation are generally not science-based and may cause irreversible damage to turfgrass or inadvertently waste water. The objectives of our study were to evaluate effects of minimum water applications to ‘Meyer’ zoysiagrass (Zoysia japonicaSteud.) on 1) turfgrass performance during prolonged dry downs; and 2) survival and recovery thereafter. Zoysiagrass was watered with 0, 5, 10, 15, 20, 25, and 30% reference evapotranspiration (ET) replacement for two months in two consecutive summers under an automated rainout shelter (excluded all rainfall) near Manhattan, KS. Results indicated that irrigation at 20 to 30% ET slowed the decline in …


Testing Label Restrictions On Seeding Timings Of Tall Fescue And Kentucky Bluegrass After Herbicide Application, Dani Mcfadden, Jared Hoyle, Steve Keeley, Zane Raudenbush Jan 2020

Testing Label Restrictions On Seeding Timings Of Tall Fescue And Kentucky Bluegrass After Herbicide Application, Dani Mcfadden, Jared Hoyle, Steve Keeley, Zane Raudenbush

Kansas Agricultural Experiment Station Research Reports

During a lawn renovation, weeds are often a major problem because they grow more aggressively than seedling turf. Turfgrass seedlings need starter fertilizer and plenty of water for proper establishment, which makes an ideal environment for weeds to thrive as well. With current herbicide label restrictions, there are limited weed control strategies during the critical establishment period. Research trials were initiated in the fall of 2019 in Manhattan, KS, to determine if tall fescue (Schedonorus arundinaceus) and Kentucky bluegrass (Poa pratensis) could be seeded into a stand at different intervals after herbicide application before restrictions on …


Water Savings And ‘Innovation’ Zoysiagrass Quality In Response To Irrigation Strategy, Manoj Chhetri, Jack Fry, Megan Kennelly, Dale Bremer, Jared Hoyle Jan 2020

Water Savings And ‘Innovation’ Zoysiagrass Quality In Response To Irrigation Strategy, Manoj Chhetri, Jack Fry, Megan Kennelly, Dale Bremer, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

Performance of ‘Innovation’ zoysiagrass was evaluated under four irrigation regimes: a) routine irrigation (1.2 inches weekly); b) evapotranspiration (ET)-based irriga­tion (60% of estimated ET); c) soil water sensor (SWS)-based irrigation; and d) no irrigation. The SWS-based irrigation method reduced water application by 72% and 56%, respectively, compared to routine or ET-based irrigation. Visual turf quality of turf receiving SWS-based irrigation remained above the minimal acceptable level throughout the study. Innovation zoysiagrass sustained acceptable quality for more than 21 days with no irrigation, and nonirrigated turf recovered fully within four weeks after irrigation treatments ceased and turf was well irrigated. Soil …


Evaluation Of Selected Large Patch-Tolerant Zoysia Spp. For Performance In Kansas, Manoj Chhetri, Jack Fry, Megan Kennelly Jan 2020

Evaluation Of Selected Large Patch-Tolerant Zoysia Spp. For Performance In Kansas, Manoj Chhetri, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

Turf quality characteristics and large patch incidence of ten selected experimental zoysiagrass genotypes were evaluated during the 2018–2019 growing season in Manhattan, KS, and establishment rate of the same ten was evaluated in Olathe, KS. Although plots were inoculated withRhizoctonia solani(AG 2-2 LP) in September 2018 in Manhattan, no large patch occurred. However, the genotypes showed vari­ability in turf performance measured by turf quality, spring greenup, fall color reten­tion, and genetic color. In Olathe, KS, at Shadow Glen Golf Club, the ten genotypes were planted on June 17, 2019. The range in visual ground coverage on September 27, …


Identification Of Cold-Hardy Zoysiagrass Genotypes For Tees And Greens In The Upper Transition Zone, Manoj Chhetri, Jack Fry, Megan Kennelly Jan 2020

Identification Of Cold-Hardy Zoysiagrass Genotypes For Tees And Greens In The Upper Transition Zone, Manoj Chhetri, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

Since the summer of 2017, 1,376 experimental zoysiagrass genotypes have been evaluated for winter survival in Olathe, KS, in an attempt to identify high quality, fine-textured types that survive in Kansas. After planting 458 progeny in the field in August 2017, only 17 experimental progeny survived when evaluated in spring 2018 (4%). In 2018, those 17 survivors were included with a new planting of 918 experimental progeny. In spring 2019, it was determined that 70 genotypes survived (8%). The 70 surviving progeny were transferred to a new, adjacent plot area in June 2019 and they varied in leaf texture (3.0 …