HortScience: a publication of the American Society for Horticultural Science (HORTSCIENCE)

Publisher: American Society for Horticultural Science, American Society for Horticultural Science

Journal description

Published seven issues per year (February, April, June, July, August, October, December) and includes the Annual Conference Program and Abstract issue. HortScience publishes horticultural information of interest to a broad array of horticulturists. Its goals are to apprise horticultural scientists and others interested in horticulture of scientific and industry developments and of significant research, education, or extension findings or methods.

Current impact factor: 0.90

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 0.902
2013 Impact Factor 0.855
2012 Impact Factor 0.938
2011 Impact Factor 0.778
2010 Impact Factor 0.886
2009 Impact Factor 0.696
2008 Impact Factor 0.914
2007 Impact Factor 0.794
2006 Impact Factor 0.613
2005 Impact Factor 0.574
2004 Impact Factor 0.497
2003 Impact Factor 0.546
2002 Impact Factor 0.57
2001 Impact Factor 0.542
2000 Impact Factor 0.47
1999 Impact Factor 0.514
1998 Impact Factor 0.462
1997 Impact Factor 0.512
1996 Impact Factor 0.469
1995 Impact Factor 0.421
1994 Impact Factor 0.435
1993 Impact Factor 0.415
1992 Impact Factor 0.434

Impact factor over time

Impact factor

Additional details

5-year impact 1.09
Cited half-life >10.0
Immediacy index 0.17
Eigenfactor 0.01
Article influence 0.27
Website HortScience website
Other titles HortScience, Hort science
ISSN 0018-5345
OCLC 1752284
Material type Periodical
Document type Journal / Magazine / Newspaper

Publisher details

American Society for Horticultural Science

  • Pre-print
    • Archiving status unclear
  • Post-print
    • Archiving status unclear
  • Conditions
    • Publisher last contacted on 27/03/2012
  • Classification

Publications in this journal

  • Timothy Rinehart · Jay Shockey · Ned Edwards · James M. Spiers · Thomas Klasson

    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Wenjing Guan · Xin Zhao · Donald J. Huber
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    ABSTRACT: Interspecific hybrid squash (Cucurbita maxima x Cucurbita moschata)is a well-known cucurbit rootstock for controlling soilborne diseases and improving abiotic stress tolerance. However, reduced fruit quality has been reported on certain melon (Cucumis melo) cultivars when grafted with squash rootstocks. In this study, a field experiment was designed to explore fruit development and quality attributes of galia melon 'Arava' by grafting with hybrid squash rootstock 'Strong Tosa'. Grafted plants with 'Strong Tosa' showed delayed anthesis of female flowers by days, but harvest dates were unaffected compared with non- and self-grafted 'Arava' plants. Early and total yields were not significantly different between grafted and nongrafted plants. Grafted plants with 'Strong Tosa' rootstock exhibited accelerated fruit development and greater vegetative growth. During the harvest period, of grafted plants with 'Strong Tosa' wilted, which was determined as nonpathogenic. Grafting with 'Strong Tosa' rootstock resulted in reduced fruit total soluble solids (TSS) and consumer rated sensory properties.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Ming Cai · Ke Wang · Le Luo · Hui-tang Pan · Qi-xiang Zhang
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    ABSTRACT: Hydrangea macrophylla is the most popular species in the genus Hydrangea because of its large and brightly colored inflorescences. Since the early 1900s, numerous cultivars with showy flowers have-been selected. Although many H. macrophylla cultivars have been developed, cold hardiness is still the major limitation to their outdoor use. Hydrangea arborescens is a small attractive shrub or subshrub native to northeastern parts of the United States, which is valued for its hardiness. Interspecific breeding of H. arborescens and H. macrophylla has been tried, but putative hybrid seedlings either died at an early stage or were not verified. We made successful hybridizations between H. macrophylla 'Blue Diamond' and H. arborescens 'Annabelle' and used in vitro ovary culture to produce viable plants. Hybrids were intermediate in appearance between parents, but variable in leaves, inflorescences, and flower color. The success of this hybridization was confirmed by six simple sequence repeat (SSR) genetic markers. The maternal chromosome number was 36, and the paternal number was 38. Chromosome counts of hybrids indicated that nearly half of them were aneuploids. Male fertility of progeny was evaluated by fluorescein diacetate staining of pollen. Twelve out of 14 hybrids (85.7%) had male fertility. We documented the first flowering progeny of H. macrophylla and H. arborescens, suggesting an effective beginning to a cold hardiness breeding program.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Peng Li · Weifeng Wu · Faxing Chen · Xinghui Liu · Yongan Lin · Jianjun Chen

    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Chad E. Finn · Bernadine C. Strik · Theodore A. Mackey · Kim E. Hummer · Robert R. Martin

    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Michael A. Arnold

    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
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    ABSTRACT: The feasibility of two nondestructive methods based on image processing techniques was assessed for fruit tree research. The methods were evaluated in a 2-year (2011 and 2012) field experiment, during which various irrigation and soil management treatments were set up in a commercial peach orchard. Canopy image analysis was conducted using two approaches, namely the orthoimage and the lateral image technique. The proposed methods were compared with other classical measurements such as trunk diameter (TD) increase and pruning weight (PW). Orthoimage canopy area (OCA) analysis resulted in a reliable and sensitive technique to study the active crop growth along the growing season. The OCA values obtained were highly correlated with TD measurements (r2 = 0.88), thus describing an exponential significant model (y = 0.0997 e0.0521x). Cumulative crop growth was determined using the virtual pruning (VP) technique. VP estimates were well correlated with fruit tree PWs during 2011 (r2 = 0.86) and 2012 (r2 = 0.80). The nondestructive image-based techniques proved sensitive to crop growth and useful for the study of fruit tree canopies. On the basis of our results, we conclude that the proposed image analysis methods are valuable new approaches with wide applications in fruit tree research.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Mark K. Ehlenfeldt · Robert B. Martin · Lisa J. Rowland

    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Peiyan Li · Xiaolin Zheng · Md. Golam Ferdous Chowdhury · Kim Cordasco · Jeffrey K. Brecht
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    ABSTRACT: Effects of postharvest oxalic acid (OA) application on chilling injury (Cl) in harvested mango fruit (Mangifera indica L.) were investigated using 'Tommy Atkins' fruit from Florida and 'Zill' fruit from Panzhihua. The OA was applied to harvested fruit as a 5 or 10 mm drench for 10 or 15 minutes at 25 degrees C. 'Tommy Atkins' fruit typically develop external CI symptoms while 'Zill' develops internal symptoms. Development of CI symptoms was significantly reduced in OA-treated 'Tommy Atkins' fruit stored for 18 days at 5 degrees C as was the rate of softening upon transfer to 25 degrees C for 4 days. However, OA treatment did not substantially control fruit decay. For 'Zill', CI development was significantly reduced in OA-treated fruit during storage at 10 degrees C for 49 days and subsequently for 4 days at 25 degrees C. In addition, membrane integrity was enhanced and the activities of the antioxidant system enzymes superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) were elevated, although there were decreases in both hydrogen peroxide (H2O2) content and superoxide radical production in OA-treated fruit. The activities of some enzymes of the energy cycle were also elevated in the OA-treated fruit, including succinate dehydrogenase (SDH), cytochrome C oxidase (CCO), H+-adenosine triphosphatase (HP-ATPase), and Ca2+-adenosine triphosphatase (Ca2+-ATPase). Thus, OA may enhance CI tolerance in mango fruit by maintaining membrane integrity associated with enhanced antioxidant activity and regulation of energy metabolism. Application of 5 mm OA appears to be beneficial in controlling postharvest CI in mango fruit.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Jennifer Tillman · Ajay Nair · Mark Gleason · Jean Batzer
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    ABSTRACT: Plastic mulch is often used in cucurbit production, but it has negative soil health and environmental implications due to use of tillage for installation and generation of plastic waste. This 2-year study aimed to find a viable alternative to plastic mulch through the use of strip tillage and rowcovers, as rowcovers could help minimize yield loss from strip tillage by providing warmer air and soil as well as providing insect protection. A split-plot design was used in both conventionally and organically managed summer squash (Cucurbita pepo), with production system as the whole-plot factor [conventional tillage with black plastic mulch also referred to as plasticulture (PL) and strip tillage into rolled cereal rye (Secale cereale) (ST)] and rowcover use as the subplot factor (rowcover until anthesis or no rowcover). Rowcovers reduced the incidence of squash vine borer (Melittia cucurbitae) and eliminated the need for insecticide sprays to control this insect pest, but did not reduce the incidence of yellow vine decline or the sprays needed to control squash bug (Anasa tristis). Rowcovers increased average air temperature by 1.6 to 4.0 degrees C and increased maximum air temperature by up to 10.3 degrees C. Rowcovers decreased average light intensity by 33% to 39%. Though soil temperature in PL tended to be higher than in ST, in 1-year rowcovers helped bridge the gap. Plant biomass was consistently higher in the PL than the ST system. Averaged across rowcover treatments, plants in PL had higher marketable yields than those in ST; however, the use of rowcovers often led to comparable yields between the production system treatments. Rowcover was a significant factor explaining marketable yield for the organically managed fields both years. There was no consistent effect of production system on soil microbial biomass carbon (MBC). Based on our results, strip tillage into rolled rye could be a viable alternative to plasticulture for summer squash production in Iowa, and rowcovers could help increase yields in ST especially in an organic management system.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Sumin Kim · Mengqiao Han · A. Lane Rayburn
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    ABSTRACT: The genome size of cultivated Cicer arietinum and 12 wild Cicer sp. including seven annual and five perennial species were analyzed using flow cytometry. A significant 2C genome size variation was observed among the Cicer sp. The 2C genome size ranged from 1.00 pg in wild species, Cicer judaicum, to 1.76 pg in cultivated species, C. arietinum. The wild perennial species all had a genome size of approximate to 1.6 pg. Most if not all of this genome size variation occurred among wild annual species. A significant positive correlation between 2C genome size and seed mass was observed among 12 wild Cicer sp. at alpha = 0.05. However, artificial selection appears to decrease nucleotype effects in cultivated C. arietinum, which resulted in no correlation between seed mass and genome size at alpha = 0.05.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Jeffrey R. Pieper · Rebecca Nelson Brown · Jose A. Amador
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    ABSTRACT: Most vegetable farms in southern New England market directly to consumers and are characterized by high crop diversity and intensive cultivation. Growers rely on tillage to prepare fields for planting and control weeds, but are concerned about the negative effects of tillage on soil health. This study evaluated three tillage reduction strategies in a market garden system producing tomatoes, melons, cucumbers, cabbage, carrots, and lettuce. Treatments of strip tillage into a killed cereal rye (Secale cereale) cover crop mulch, perennial white clover (Trifolium repens), and ryegrass (Lolium perenne) living mulch between planting rows, and annual crimson clover (Trifolium incarnatum) living mulch interseeded between vegetable rows were established in 2010 and compared over 3 years to a control system using tillage to maintain bare ground between rows. Treatments were evaluated for effects on vegetable yield and soil biological, chemical, and physical properties. The strip tillage treatment was the most effective at promoting Soil health, resulting in significant increases in soil aggregate stability, potentially mineralizable nitrogen, active soil carbon, and microbial activity relative to the control, and significant decrease in loss of soil organic matter. However, it was not effective for production of vegetables, with the strip-tillage plots having the lowest yields throughout the study. The perennial living mulch treatment produced yields of carrots, melons, and cucumbers similar to the control yields, but reduced yields of tomatoes, cabbage, and lettuce. Microbial respiration was significantly higher than in the control, and nitrate levels, and loss of soil organic matter were significantly lower. The annual living mulch treatment produced yields similar to the control for all crops, and soil health was similar to the control for all variables except soil nitrate, which was significantly higher than the control. Perennial living mulch shows the most promise for improving soil health while maintaining yields in some vegetable crops, but challenges remain in preventing competition between vegetables and living mulches.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Stephanie J. Walker

    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Liping Kou · Tianbao Yang · Xianjin Liu · Yaguang Luo
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    ABSTRACT: We reported previously that the preharvest treatment of broccoli microgreens with 10 mmol.L-1 calcium chloride (CaCl2) increased the yield and postharvest quality. The objective of this study was to investigate whether other calcium forms have the similar effect, in particular, after postharvest dip in calcium solution. Our results are as follows: 1) Preharvest spray without postharvest dip: Both 20 mmol.L-1 calcium lactate (Ca lactate) and calcium amino acid (Ca AA) chelate significantly improved broccoli microgreens quality and inhibited microbial populations as compared with the water-only control during storage at 5 degrees C for 21 days. However, they were less effective than 10 mmol.L-1 CaCl2. 2) Postharvest dip without preharvest spray: The microgreens sprayed with water-only control were dipped in 0, 25, 50, or 100 mmol.L-1 Ca lactate solution containing 100 mu L.L-1 chlorine immediately after harvest. During storage at 5 degrees C for 14 days, 50 mmol.L-1 Ca lactate dip showed the highest overall quality and lowest tissue electrolyte leakage. 3) Preharvest spray and postharvest dip: Combined preharvest 10 mmol.L-1 CaCl2 spray and postharvest 50 mmol.L-1 Ca lactate dip resulted in better postharvest quality than individual pre- or postharvest calcium treatments. However, the preharvest 10 mmol.L-1 CaCl2 spray without postharvest dip displayed a best overall visual quality and longest storage life. Our data indicate that pre- and postharvest calcium treatments have positive effect on maintaining the microgreens quality and extending shelf life. However, current postharvest dip/spinning/drying method profoundly reduces the shelf life due to mechanical damages. Technologies to optimize microgreens wash are needed to provide ready-to-eat product. Alternatively, the wash step can be avoided when the microgreens are grown under controlled settings.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Ockert Greyvenstein · Terri Starman · Brent Pemberton · Genhua Niu · David Byrne
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    ABSTRACT: The decline of garden rose sales over the past 20 years can be partially attributed to the lack of material adapted to a wide range of landscapes, which includes adaptation to high temperature stress. Current methods for evaluating high temperature susceptibility in garden roses are based on field observations, which are time consuming and subjected to ever-changing environmental conditions. A series of experiments were conducted to optimize protocols and compare the use of chlorophyll fluorescence (CFL) and cell membrane thermostability (MTS) by way of electrolyte leakage as methods to screen for high temperature susceptibility. Immature leaves proved better than mature leaves for both CFL and MTS measurements, using either detached leaf or whole plant stress assays. MTS measured on immature leaves stressed in a water bath at 50 degrees C for 45 minutes proved most consistent in separating rose clones based on high temperature susceptibility. Stressing actively growing plants with flower buds of 2 mm in diameter in a heat chamber at 44 degrees C for 3 hours resulted in increased flower abscission and leaf necrotic lesions on more susceptible clones when compared with those that were heat tolerant. Combining MTS measurements from immature leaves stressed in a water bath with the flower abscission and leaf necrosis responses 10 days after stress in a heat chamber could be the first step to screen and select against the more susceptible clones in a garden rose breeding program. Power analyses suggest that the proposed MTS protocol would be efficient in detecting differences between clones when the difference in electrolyte leakage is greater than 10%.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science
  • Judy Lee · William B. Miller
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    ABSTRACT: We determined the effects of preplant storage temperature and duration and greenhouse growing temperature on the growth and flowering of four cultivars of potted Ornithogalum representing Ornithogalum dubium (three cultivars) and Ornithogalum thyrsoides (one cultivar) originating from Israeli breeding. Bulbs were stored at five temperatures for 1 to 4 weeks before planting. Within the range of 9 to 27 degrees C, lower preplant storage temperature resulted in earlier flowering and taller plants, and for one cultivar, increased bulb respiration measured after storage. When bulbs were stored at 9 degrees C for 3 weeks, plants flowered at least 12 days earlier compared with controls stored at 27 degrees C. At 9 degrees C, as preplant bulb storage duration increased from 0 to 4 weeks, plants flowered more quickly and were taller. Within the range of 13 to 21 degrees C, 17 to 18 degrees C forcing temperatures gave the best combination of forcing time and plant quality.
    No preview · Article · Dec 2015 · HortScience: a publication of the American Society for Horticultural Science