Harlene Hatterman-Valenti

Harlene Hatterman-Valenti
North Dakota State University | NDSU · Department of Plant Sciences

PhD

About

93
Publications
9,719
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494
Citations
Citations since 2017
34 Research Items
261 Citations
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20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060

Publications

Publications (93)
Article
Full-text available
Groundwater is a significant source of plant water use since groundwater consumption of plants reduces the volume of surface irrigation water. In this study, groundwater table effect on hard red spring wheat ( Triticum aestivum L.) growth and yield parameters were investigated using a lysimeter technique in a controlled environment. Three different...
Article
Vegetative clonal propagation of scions and rootstocks represent the commercial method of grapevine production; currently, techniques such as hardwood rooting, grafting, and tissue culture are readily exploited by the nursery and grapevine industries. Seedlings of highly heterozygous grapevines are not true to type, as a result they are not utilize...
Article
Full-text available
Herbicide resistance has been studied extensively in agronomic crops across North America but is rarely examined in vegetables. It is widely assumed that the limited number of registered herbicides combined with the adoption of diverse weed management strategies in most vegetable crops effectively inhibits the development of resistance. It is diffi...
Article
Full-text available
In Egypt's arid and semi-arid lands where the main olive production zone is located, evapotranspiration is higher than rainfall during winter. Limited research has used nanomaterials, especially nano-silicon (nSi) to improve the growth, development, and productivity of drought-stressed fruit trees, amid the global water scarcity problem. To assess...
Article
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Traditionally, the structure of higher-order data in genotype-by-environment interaction requires simplification to use bilinear reduction models. Flexible multiway reduction models have been claimed to be more informative, as they allow exploration of individual trends and account for the covariance among data modes. In complex latent traits, such...
Article
Full-text available
Field trials were conducted to determine the effects of glyphosate and/or dicamba simulated drift rates on chipping potatoes ‘Atlantic’ and ‘Dakota Pearl’. Sublethal herbicide rates were applied at the tuber initiation stage and consisted of dicamba at 99 g ae ha ⁻¹ or glyphosate at 197 g ae ha ⁻¹ applied alone or the combinations of dicamba at 20...
Article
Full-text available
Experiments were conducted in 2013 and 2014 to evaluate the effects of training system and leaf removal treatments on yield and quality for ‘Frontenac’, an interspecific hybrid wine grape, at a research vineyard located near Absaraka, North Dakota. The experiment was structured as a randomized complete block design with a split-plot arrangement inc...
Article
In North Dakota, soils and irrigation water sources frequently have elevated sodium (Na+) cation content leading to decay of clayey soil structure, reduced water drainage, and decreased crop yield potential. To meet the growing demand for local fruits and vegetables as well as to overcome the brevity of the state’s growing season, regional farmers...
Article
Screening new alternative vegetable oil sources as biodiesel feedstocks has attracted worldwide attention as world oil reserves decline and environmental concerns increase. Blessed thistle (Cnicus benedictus L.) has recently been identified as a multipurpose crop with optimal economic yield in poor soils. Blessed thistle was seeded into three diffe...
Article
Advancing economically viable blackberry production in the Northern Plains requires screening and selection of cold stress adaptable cultivars with high nutritional and postharvest preservation qualities. The human health benefits-associated nutritional qualities, especially phenolic bioactive-linked antioxidant and anti-diabetic properties of blac...
Article
Blackberries (Rubus sp.) are rich sources of dietary antioxidants such as phenolic bioactives with diverse human health protective functionalities. Previous in vitro and in vivo model-based studies found high phenolic bioactive-linked antioxidant and anti-hyperglycemic properties in blackberries indicating relevance as anti-dote against diet-linked...
Article
The recent introduction of primocane-fruiting blackberry cultivars has enabled blackberry (Rubus subgenus Rubus) production in northern climates such as North Dakota. However, primocane yields have been low and methods to increase yield other than tipping, which has been shown to delay fruiting and reduce marketable yield, need to be evaluated. A f...
Article
Full-text available
Experiments were conducted to evaluate the effects of three pruning levels (20, 30 and 40 nodes per vine) and three fruit-zone leaf removal levels (0%, 50%, and 100%) on the yield and fruit quality of Frontenac gris and Marquette wine grapes in a northern production region. The study was conducted at three North Dakota vineyards located near Buffal...
Article
Full-text available
Core Ideas Enhanced efficiency fertilizers significantly reduced cumulative N2O emission compared with urea. Volatilization loss was lower with determinate than indeterminate cultivar. SuperU application lead to higher soil N after harvest. Environmentally Smart N can be a potential alternative to urea to increase N use efficiency. Fertilizer‐N can...
Article
Full-text available
Lysimeter experiments were conducted under greenhouse conditions to investigate canola (Brassica napus L.) plant water use, growth, and yield parameters for three different water table depths of 30, 60, and 90 cm. Additionally, control experiments were conducted, and only irrigation was applied to these lysimeters without water table limitations. T...
Article
Cold stress, including chilling and freezing temperatures, severely damages crop production and quality during the whole plant life from seed germination to the end of postharvest life. Cold stress can indirectly reduce plant yield and quality by suppressing symbiont growth and, thereby, symbiotic performance. In organic farming, the application of...
Article
Low-temperature stresses, also referred to as cold temperature stresses, including chilling and freezing temperatures, are among the major abiotic stresses that severely reduce plant yield, quality, and marketability and pose a serious threat to plant production during whole plant life cycles. Plant-environment-symbiont interactions determine the s...
Article
Full-text available
Water table contribution to plant water use is a significant element in improving water use efficiency (WUE) for agricultural water management. In this study, lysimeter experiments were conducted in a controlled greenhouse environment to investigate the response of soybean water uptake and growth parameters under four different water table depths (...
Article
Full-text available
Outdoor production of floricane-fruiting (FF) blackberry ( Rubus subgenus Rubus ) is problematic in the Northern Great Plains region of the United States because cane injury and plant death will occur from exposure to temperatures −15 °C and colder. An annual FF blackberry production system using hardwood floricane cuttings would overcome some of t...
Poster
Full-text available
Responses of canola plant water uptake, crop growth and yield parameters to 3 constant water table depths (30, 60, and 90 cm) were studied under a controlled environment using lysimeters. One more set of experiments with applying only surface irrigation were conducted as control experiments. A randomized complete block design was used with 8 replic...
Poster
Full-text available
Water table contribution to plant water use is a significant element in crop production since it reduces the drainage and irrigation water volume and enhances the crop water uptake from groundwater. In this study, responses of canola (Brassica Napus L.) plant water uptake, crop growth and yield parameters to three constant water table depths of 30,...
Article
Increased use of dicamba and/or glyphosate in dicamba/glyphosate-tolerant soybean might affect many sensitive crops, including potato. The objective of this study was to determine the growth and yield of ‘Russet Burbank’ potato grown from seed tubers (generation 2) from mother plants (generation 1) treated with dicamba (4, 20, and 99 g ae ha ⁻¹ ),...
Article
Full-text available
Blackberry (Rubus subgenus Rubus Watson) production has the potential to expand into the northern Great Plains with the development of the rotating cross-arm (RCA) trellis system that prevents winter injury by laying the plants horizontal to the ground so that they can be covered during cold periods. However, this will only occur with the evaluatio...
Article
Saskatoon serviceberry (Amelanchier alnifolia Nutt.), or simply serviceberry, is an ornamental shrub that produces high quality, berry-like pome fruit, and is often compared to blueberry (Vaccinium spp.) in appearance, nutrients, and flavor. A member of Rosaceae, serviceberry produce delicate, white flowers that create an aesthetic and naturalistic...
Article
Enhanced efficiency fertilizers (EEFs) are supposed to improve nitrogen use efficiency (NUE) of potato (Solanum tuberosum L.) by synchronizing N release from fertilizers and plant uptake. This experiment evaluated the performance of EEFs for tuber yield, quality, N uptake, apparent fertilizer recovery (AFR), and NUE under irrigated conditions. At I...
Article
Context: Chronic plantarflexor (PF) stretching during ankle immobilization helps preserve calf girth, plantarflexion peak torque, and ankle dorsiflexion (DF) motion. Immobilization can lead to decreases in muscle peak torque, muscle size, and joint ROM. Recurrent static stretching during a period of immobilization may reduce the extent of these lo...
Article
Field trials using sublethal doses of glyphosate, dicamba, ormixtures of both herbicides on dry edible pea (Pisum sativum), dry edible bean (Phaseolus vulgaris), and potato (Solanum tuberosum) were conducted at six locations to determine the injury potential if spray drift were to occur. All studies used three increasing sublethal doses of glyphosa...
Article
Full-text available
Elemental sulfur is commonly applied for powdery mildew (Erysiphe necator) protection on winegrape (Vitis sp.). The product may be used in a diversified, integrated disease management system to help prevent fungicide resistance to products with other modes of action. Additionally, sulfur may be used as a control option in organic systems. Applicati...
Article
Fifteen tall, warm-season, native and ornamental grasses were subjected to a 3-year, low-input, and cold hardiness trial conducted from 2010 to 2013 in zone 4a at Fargo and Mandan, ND. Grasses tested were big bluestem [species (Andropogon gerardii)], ‘Pawnee’ big bluestem (A. gerardii), silver banner grass (Miscanthus sacchariflorus), giant miscant...
Article
Full-text available
Blackberry (Rubus subgenus Rubus) production has the potential to expand into the upper Midwest and northern Great Plains regions, but this industry growth will only occur with the evaluation of new cultivars and overwinter protection methods. This field study was designed to evaluate blackberry cultivars and winter row cover protection methods in...
Article
Full-text available
Floricane-fruiting blackberries (Rubus subgenus Rubus) are not considered winter-hardy in northern climates due to low temperature flower bud death. The recent introduction of primocane-fruiting blackberry cultivars may enable blackberry production in northern climates such as North Dakota. However, since early fall frosts can decrease yield potent...
Article
Full-text available
Field experiments were conducted in 2007 and 2008 near Oakes, North Dakota (ND), USA, to evaluate if strip tillage could be incorporated into a production system of seeded onion (Allium cepa) to eliminate the standard use of a barley (Hordeum vulgare) companion crop with conventional, full width tillage, yet support common early-season weed control...
Article
Full-text available
The development of cold hardy, Vitis riparia-based grape cultivars in the 1990s started a new industry of small vineyards and wineries in the New England, Upper Midwest and northern Plains regions of the United States. A cultivar evaluation study was conducted over a seven-year period to identify cold-hardy hybrid grapes adapted to the harsh enviro...
Article
Full-text available
Field experiments at Oakes, ND, USA in 2010 and Carrington, ND, USA in 2011 were conducted to evaluate the potential for cover crops grown in the Northern Great Plains, USA in order to reduce weed emergence and density in irrigated potatoes. Treatments included five cover crop treatments and three cover crop termination treatments. Termination of c...
Article
Full-text available
A field experiment was conducted to determine the effects of three mulches (straw, landscape fabric, and woodchip) and a single spring herbicide application (combination of oryzalin, flumioxazin, and glyphosate) on annual weed control and grapevine establishment in North Dakota. Vine growth, bud-break timing, bud hardiness and soil conditions were...
Article
Early-season weed control and a companion crop such as barley (Hordeum vulgare) are needed in direct-seeded onion due to slow seedling emergence and the potential stand losses from wind erosion of soil particles. However, if the companion crop is not removed at the appropriate time, it becomes a weed and competes with onion to reduce yield. If comp...
Article
Full-text available
A juneberry (Amelanchier alnifolia) cultivar trial was conducted to evaluate fruit yield, quality, and other characteristics for juneberry cultivars and a native biotype. One-year old micropropagated material was transplanted and established in North Dakota in 2004. The native biotype is available as a conservation plant from Towner State Nursery (...
Conference Paper
Field research was conducted at the Northern Plains Potato Grower’s Association irrigated research site near Inkster, North Dakota, in 2012 and repeated in the same location in 2013 to evaluate the effects of simulated glyphosate drift in the current season and the effects of planting back the daughter tubers grown in the 2012 season. Treatments we...
Conference Paper
Experiments were conducted at the North Dakota State University research vineyard near Absaraka, North Dakota, in 2013 and will be repeated in 2014 to evaluate the effects of leaf removal and training systems on yield and quality of the wine grape, Frontenac. The applications of four leaf removal treatments exposed ripening grape clusters to variou...
Article
Full-text available
Field trials were conducted to evaluate the effect of simulated glyphosate drift rates applied to two non-irrigated potato cultivars in the late tuber bulking stage grown for potato seed production. Mother plants receiving a sublethal glyphosate application had similar yields regardless of the year or cultivar. ‘Red LaSoda' seed pieces visually eva...
Conference Paper
Full-text available
Field research was conducted at the Oakes Irrigation research center near Oakes, ND, on ‘Sedona’ onion. Micro-rate applications of bromoxynil and/or oxyfluorfen were compared to preemergence treatments using ethofumesate at 1.1 or 2.2 kg/ha or DCPA at 14.9 kg/ha for early season broadleaf control. Clethodim plus a petroleum oil surfactant, was adde...
Conference Paper
Experiments were conducted at three North Dakota vineyards located near Buffalo, Clifford, and Wahpeton, ND, in 2011 and repeated at the same locations in 2012 to evaluate the effects of pruning and leaf removal on yield and quality of wine grapes in North Dakota. The application of three pruning treatments limited the vine to a specific number of...
Article
Early-season weed competition may cause substantial yield losses in onion. Oxyfluorfen and bromoxynil are POST herbicide options for weed control once onion has developed two leaves, which often takes 4 to 6 wk. Multiple applications of oxyfluorfen at 35 and 18 g ai ha(-1) and bromoxynil at 35 and 18 g ae ha(-1) with adjuvants were evaluated for on...
Conference Paper
Although native and ornamental grasses provide year-long beauty and interest to landscapes in a wide range of growing conditions and require little maintenance, many homeowners and grounds managers in North Dakota hesitate to use them because of a misconception that they cannot survive our harsh winter conditions. In July, 2010, sixty seven ornamen...
Article
Full-text available
Controlled environment experiments showed that velvetleaf plants grown under drought stress or low temperature (LT) treatments had greater leaf epicuticular wax (ECW) deposition compared to plants grown in soil with moisture at field capacity (FC) or a high temperature (HT) regime. Light intensity did not affect ECW deposition; however, increasing...
Conference Paper
Field research was conducted at the Northern Plains Potato Grower’s Association Research site near Grand Forks, ND to evaluate Red Lasoda, Red Norland, and Sangre response to glyphosate simulated drift that may have occurred to plants at one of three growth stages. Glyphosate was applied at rates one-third, one-sixth, and one-twelfth the standard u...
Article
Assessment at North Dakota State University is considered to be a conversation about learning outcomes enriched by data with a goal of improving student learning. On the classroom level, this focuses on developing techniques to assess course-related knowledge and skills but may also include techniques to assess learner reactions to teaching and the...
Article
Field experiments were conducted at Oakes, Absaraka, and Tappen, ND, in 2006 and repeated at Oakes and Absaraka, ND, in 2007 to evaluate early season weed control of common lambsquarters and redroot pigweed in onion with POST herbicides applied at multiple reduced rates (microrates) and to determine whether microrate herbicide treatments effectivel...
Article
Few weed management options are available for juneberry, which has limited the potential for this new crop. Field trials were initiated at three locations in North Dakota to evaluate efficacy and crop safety associated with chemical and physical weed control treatments applied just before or immediately after transplanting. All treatments except no...
Article
Full-text available
Controlled-environment experiments were conducted to determine giant foxtail epicuticular wax (ECW) deposition and fluazifop-P absorption under different environmental conditions and with two adjuvants. Drought stress and low temperature increased leaf ECW content, whereas low light intensity decreased ECW content compared with medium light intensi...
Conference Paper
Field research was conducted to evaluate Russet Burbank growth the same year simulated glyphosate drift occurred to irrigated potatoes. Glyphosate was applied at rates one-third, one-sixth, and-twelfth, and one-twenty-forth the standard use rate (0.25, 0.125, 0.0625, and 0.0313 lb ae/A) at the tuber hooking (TH) 0.25 lb ae/A only, tuber initiation...
Conference Paper
Full-text available
Field research was conducted the past four years at the Northern Plains Potato Grower’s Association Irrigation Research site near Tappen, ND to evaluate hill shape influence on ‘Russet Burbank’ growth, yield and tuber quality. Treatments consisted of: 1) no hill, 2) standard “Λ” shaped hill, 3) furrow planting, 4) "M" shaped hill, and 5) flat top h...
Conference Paper
Many researchers have coined terms such as sustainable production, natural systems agriculture, organic production, and pesticide free production to describe methods that alter what we have come to know as conventional production. Most have reduced or eliminated one or more inputs in a production process. Some have eliminated synthetic inputs in an...
Conference Paper
Assessment can be considered a conversation about student learning, enriched by data with a goal to improve student learning. Assessment has been a major issue since approximately 1982, but by the end of 1995, the North Central Association of Colleges and Schools mandated that assessment plans be in place. These assessment plans consist of direct,...
Conference Paper
Field research was conducted at the NDSU Agricultural Experiment Station Research site near Kindred, ND to evaluate the influence of cultural and chemical weed management strategies on weed control and plant growth in newly established grapes. The trial was arranged as a split plot with three cultural (landscape fabric, wheat straw, and wood chips)...
Article
Full-text available
‘Dakota Diamond’, evaluated as ND5822C-7, is a medium to late-maturing cultivar with uniformly sized tubers and very high yield potential. It resulted from the cross of ND4103-2 and ‘Dakota Pearl’. Dakota Diamond is comprised of approximately 23.3% wild potato species germplasm. It combines the characteristics of several species, including Solanum...
Article
Full-text available
Weed control is necessary to ensure success in early stages of juneberry (Amelanchier alnifolia) orchard development; however, juneberry growers have limited chemical weed control options. A field trial was initiated at Prosper, ND, to evaluate the efficacy of physical and chemical weed control methods and their effects on juneberry growth. Woven l...
Article
Full-text available
'Dakota Crisp' (ND2470-27) is a medium-maturing potato cultivar with uniform tubers and high yield potential. It resulted from the cross of 'Yankee Chipper' x 'Norchip'. Vines are vigorous and medium-sized. Tubers are smooth, round to slightly oblong in shape, with light eggshell-colored skin and white flesh. Dakota Crisp is suitable for the cold c...
Article
Field studies were conducted near Oakes, Absaraka, and Carrington, North Dakota to determine if bromoxynil and oxyfluorfen applied post-emergence at reduced doses and spray volumes to one-leaf onion would provide effective early-season broadleaved weed control without significant crop injury. Oxyfluorfen generally provided more effective early-seas...
Article
Field trials were initiated during 2004 at a dryland site near Prosper, N.D., to evaluate the effects of simulated drift from glyphosate to `Russet Burbank' and `Red Lasoda' seed potato during the early senescence stage. Glyphosate was applied at rates 1/3, 1/6, 1/12, 1/24, and 1/48 the use rate for spring wheat desiccation on 10 Sept. 2004 with a...
Article
Field studies were conducted at Absaraka, Carrington, and Oakes, N.D., in 2005 to evaluate early season broadleaf weed control and onion ( Allium cepa L.) injury with herbicides applied preemergence to the crop. DCPA is a common preemergence herbicide used in onion. However, DCPA can be uneconomical in most high-weed situations, or the usage may be...
Article
Surface water runoff from the hill, where potatoes are planted, to the furrow may exacerbate potato drought sensitivity. Planting into furrows and constructing midrow ridges may improve water use efficiency and relieve water stress on potato by directing water toward, not away from, the plants. A 3-year field study was conducted to compare yields a...
Article
A micropropagation method was developed for a cold hardy purple raspberry cultivar (Rubus occidentalis × R. idaeus ‘Amethyst’). In vitro shoot cultures were initiated from shoot tips of a 30-year old ‘Amethyst’ plant. The effects of basal medium, plant growth regulator, and temperature on shoot proliferation were investigated. Shoots were produced...
Article
'Dakota Jewel' is a medium- to late-maturing potato (Solanum tuberosum L.) cultivar; however, tuber maturity is early. Tubers are smooth, round to oblong in shape, with bright red skin and white flesh. Dakota Jewel is suitable for the fresh tablestock market, both directly from the field and following storage. Yield potential is medium, with total...
Article
Full-text available
Field trials were conducted to evaluate the effect of planting configurations (raised bed and no bed) and reservoir tillage on onion (Allium cepea) yield and grade when a cereal grass or cool-season broadleaf species was used as a companion crop. Total onion yield, the number of plants harvested, percentage of single centers, and cull-sized bulb yi...
Article
Full-text available
ADDITIONAL INDEX WORDS. edamame, irrigation, population SUMMARY. Vegetable soybeans (Glycine max), the same species as fi eld-dried soybeans, have similar production requirements and good market potential for commercial producers in upper midwestern United States. Five vegetable soybean cultivars were tested for yield and quality characteristics an...
Article
Afield study evaluated the influence of planting density on the yield and quality of confectionery seed pumpkins grown near Hatton, N.D. An open-pollinated selection of Chinese snow-white seeds (CS) and a hull-less (HL) seed cultivar (`Takai', Johnny's Selected Seeds) were grown at three different planting densities (1-, 2-, or 3-ft plant spacing o...
Article
Full-text available
Greenhouse experiments were conducted to compare visible injury from sublethal rates of 2,4-D, dicamba, and a premised product of 2,4-D + mecoprop + dicamba for eight annual flowers and to describe herbicide injury symptoms for these annual species. Herbicides were applied at rates 0.05x, 0.1x, and 0.2x of their highest labeled rate for turfgrass t...
Article
Greenhouse studies were conducted to evaluate simulated drift injury to annual bedding plants. Dahlia, gazania, geranium, marigold, petunia, and salvia in the early stages of flowering were sprayed with either 2,4-D (dimethylamine salt) or dicamba (diglycolamine salt) at rates one-fifth, one-tenth, or one-twentieth the lowest labeled rate of for tu...
Article
Field trials were initiated near Carrington and Absaraka, N.D., on a Heimdal clay loam and a Spottswood sandy loam, respectively to evaluate onion grade and yield in response to planting configuration, spring cover crop, and reservoir tillage. Results from the Carrington and Absaraka locations during 2002 and 2003 showed that colossal-sized onion w...
Article
Laboratory and field experiments were conducted to determine the effects of light, temperature, oxygen, and seed burial depth on seed germination and seed production of Eriochloa villosa without the interference of a crop. Eriochloa villosa seed germination did not respond to light, although it is possible that: experimental conditions were not app...
Article
Laboratory and field experiments were conducted to determine the effects of temperature, oxygen, and seed burial depth on woolly cupgrass seed dormancy. Woolly cupgrass seeds at physiological maturity are innately dormant. Stratifying these seeds at 5 C for 8 wk increased germination to greater than 90%, regardless of the germination, temperature....
Article
Fused benzoheterocyclic ring systems 1 represents a new class of highly active protoporphyrinogen oxidase (PPO) inhibitors. These compounds differ from traditional 2,4,5-trisubstitutedphenyl-1-heteroaryl PPO inhibiting herbicides in that positions 4 and 5 of the phenyl ring are linked together to form a fused heterocyclic ring. Synthesis, biologica...
Article
Field experiments were conducted to evaluate ground ivy (Glechoma hederacea L.) control and Kentucky bluegrass (Poa pratensis L.) tolerance to Twenty Mule Team Borax, Super Trimec, and Sharpshooter applications. Ground ivy control improved with time in 1991 whereas the inverse was true in 1992. Liquid borax at 610 g/100m2 and Super Trimec at 560 ml...
Article
Laboratory studies were conducted to determine the effect of seed coat on woolly cupgrass seed moisture and oxygen uptake, and to determine if water-soluble growth inhibitors are present in the seed. Intact dormant seeds did not respond to any temperature regime or to oxygen concentrations abote atmospheric level. Dehulling increased germination of...
Article
Growth, seed production, and dormancy of velvetleaf in response to shading were evaluated in the field. Velvetleaf plant height, leaf number, number of branches, and plant dry weight decreased linearly with increasing shade. No differences were observed for plant height, number of leaves, or branches/plant when plants were shaded 30% or not shaded...
Article
Greenhouse trials were conducted to evaluate annual flower response to simulated drift of Weedar 64 (dimethylamine salt of 2,4-D) and Turflon Amine (triethylamine salt of triclopyr). Mature annual flowers responded differently to low concentrations of Weedar 64 and Turflon. The order for species from most sensitive to least sensitive was petunia >...
Article
Field tests showed that the lawn spray-gun with a 4 gpm lawn tip reduced the percentage of application volume deposited 90 cm to 210 cm downwind from the spray swath edge when compared with XR8004 flat-fan or RA-6 wide angle hollow cone applications at wind speeds between 4.7 and 14.4 km/h. The percentage of applied volume collected at 210 cm downw...
Article
Full-text available
The effects of metribuzin herbicide and phorate insecticide were studied on summer harvest chipping-potatoes at Muscatine, IA, from 1989 to 1991. Phorate at 1.5 kg/ha increased total and 'A'-size tuber yield and tuber specific gravity. Metribuzin applied at 0.56 kg/ha postemergence decreased total and 'A'-size tuber yield. Metribuzin applied at 0.5...