New Zealand Journal of Crop and Horticultural Science (NEW ZEAL J CROP HORT)

Publisher: Royal Society of New Zealand

Journal description

New Zealand Journal of Crop and Horticultural Science is an international research journal published for researchers in research institutes, universities, and other organisations worldwide concerned with all aspects of crop and horticultural science. New Zealand Journal of Crop and Horticultural Science publishes original research papers, review articles, and commentaries on all aspects of the production, protection, handling, and processing of crop and horticultural products. The scope of the journal encompasses agricultural economics, agronomy, biotechnology, entomology, plant nutrition, plant breeding, plant pathology, pomology, postharvest physiology, soil science, and viticulture. Papers on any horticultural crops are appropriate but the journal particularly encourages contributions on kiwifruit, apples, wine grapes and oenology, as well as papers on biosecurity, new crop and horticultural products and descriptions of new cultivar releases. Short communications, Book reviews, and Letters to the Editor are also published.

Current impact factor: 0.61

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 0.605
2013 Impact Factor 0.271
2012 Impact Factor 0.481
2011 Impact Factor 0.544
2010 Impact Factor 0.247
2009 Impact Factor 0.481
2008 Impact Factor 0.303
2007 Impact Factor 0.248
2006 Impact Factor 0.173
2005 Impact Factor 0.341
2004 Impact Factor 0.338
2003 Impact Factor 0.292
2002 Impact Factor 0.394
2001 Impact Factor 0.431
2000 Impact Factor 0.225
1999 Impact Factor 0.273
1998 Impact Factor 0.122
1997 Impact Factor 0.297
1996 Impact Factor 0.292
1995 Impact Factor 0.313
1994 Impact Factor 0.273
1993 Impact Factor 0.152
1992 Impact Factor 0.231

Impact factor over time

Impact factor

Additional details

5-year impact 0.55
Cited half-life >10.0
Immediacy index 0.07
Eigenfactor 0.00
Article influence 0.16
Website New Zealand Journal of Crop and Horticultural Science website
Other titles New Zealand journal of crop and horticultural science
ISSN 0114-0671
OCLC 20346537
Material type Government publication, National government publication, Periodical
Document type Journal / Magazine / Newspaper

Publisher details

Royal Society of New Zealand

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 2 years embargo
  • Conditions
    • On author or institutional server only
    • Publisher copyright and source must be acknowledged
    • Must link to publisher version
  • Classification
    ​ yellow

Publications in this journal

  • New Zealand Journal of Crop and Horticultural Science 08/2015; DOI:10.1080/01140671.2015.1040423
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    ABSTRACT: A polymerase chain reaction (PCR) assay was developed that amplified a 170-bp fragment of the intergenic spacer region of Sclerotinia sclerotiorum, the cause of white mould. Sensitivity was 10 S. sclerotiorum ascospores per DNA extraction (0.2 ascospores per PCR reaction). The presence of soil did not affect sensitivity at 50, 100 and 500 ascospores/DNA extraction, but reduced sensitivity at 25 and 10 ascospores/DNA extraction by 10% and 30%, respectively. The assay did not amplify DNA of Botrytis cinerea but detected S. minor and S. trifoliorum. Utility of the test for detection of S. sclerotiorum ascospores in bean fields was demonstrated using rotating impaction samplers over two seasons. The use of the test in combination with an impaction sampler may provide benefits in time, sensitivity and specificity compared with visual identification and enumeration of spores from traps only. This system may provide an opportunity to schedule fungicides during periods of inoculum presence for disease management.
    New Zealand Journal of Crop and Horticultural Science 05/2015; 43(3):1-8. DOI:10.1080/01140671.2015.1025083
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    ABSTRACT: Resveratrols and flavonoids have important beneficial roles in plants and to humans. The grape family (Vitaceae) is one of several families that can biosynthesise both resveratrols and flavonoids. Previous research has shown that UV-C may induce the biosynthesis of resveratrols in the fruit of grape. But little is known about the UV-C-induced biosynthesis of resveratrols and flavonoids in grape leaves. This study demonstrated that the biosynthesis of resveratrol in grape leaves strongly increased in response to UV-C irradiation. The largest contribution to total resveratrols was trans-resveratrol. The expression of related genes, including PAL, C4H, 4CL and STS, increased and peaked 6-12 h after treatment, earlier than the peak of total resveratrol. In contrast, total flavonoid content and the expression of the key gene CHS was not affected by UV-C radiation, staying at a low level after UV-C irradiation. In summary, there is a differential response to UV-C radiation for the biosynthesis of stilbenes and flavonoids in grape leaves.
    New Zealand Journal of Crop and Horticultural Science 05/2015; DOI:10.1080/01140671.2014.989862
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    ABSTRACT: Resveratrol is well known for its strong antioxidant properties. To accelerate research on resveratrol metabolism and to evaluate the genetic potential for breeding, the stilbenoid contents of four tissues (leaf and berry skin, flesh and seed) were examined in 21 accessions of six wild Chinese grapevine species (Vitis quinquangularis, V. romanetii, V. piasezkii, V. shenxiensis, V. amurensis and V. davidii). Resveratrol derivatives in V. quinquangularis, V. romanetii, V. piasezkii and V. shenxiensis are reported for the first time. Three kinds of stilbenoid (trans-resveratrol, cis-piceid and trans-piceid) were detected in the berry skins, flesh, seeds and leaves but cis-resveratrol was found to be absent. Stilbenoid content was predominantly affected by genetic background and by tissue type. In most accessions, berry skins produced the highest total stilbenoid, followed by leaves, seeds and flesh. As a proportion, cis-piceid was the major stilbenoid component in berry skins, seeds and leaves, whereas trans-piceid was the major component in the flesh.
    New Zealand Journal of Crop and Horticultural Science 03/2015; DOI:10.1080/01140671.2015.1010547
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    ABSTRACT: Infection by Botrytis cinerea is a major cause of postharvest decay in strawberries. The efficacy of baby corn fermented vinegar (BFV) for growth inhibition of B. cinerea was investigated by diffusing 0%-0.225% acetic acid from BFV or glacial acetic acid into potato dextrose agar. BFV containing 0.225% acetic acid completely inhibited the growth of B. cinerea. Strawberry-flavoured baby corn fermented vinegar (SF-BFV) was developed to mask unfavourable smells caused by BFV. The effectiveness of BFV liquid and vapour for controlling postharvest decay in strawberries was evaluated along with associated sensory analyses. Taste panellists readily accepted fruit that had been sprayed with SF-BFV or exposed to BFV vapour, both treatments that significantly reduced fruit decay. Strawberries inoculated with B. cinerea were also tested. Shelf life at 4 °C of strawberries sprayed with SF-BFV was extended to 7 days while that of fruit exposed to BFV vapour was extended to 11 days.
    New Zealand Journal of Crop and Horticultural Science 03/2015; DOI:10.1080/01140671.2015.1013558
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    ABSTRACT: Tomato potato psyllid (TPP; Bactericera cockerelli) is a serious pest of solanaceous crops in New Zealand. Control of TPP is currently dominated by synthetic biocides, although this method is curative and does not always prevent transmission of TPP-vectored plant diseases. This study evaluated mesh crop covers as non-chemical alternatives for controlling TPP in potato crops. Over two growing seasons in Canterbury, New Zealand, potatoes growing under mesh covers were found to have reduced numbers of TPP nymphs and adults, increased tuber size, increased overall yield and enhanced storage potential compared with uncovered plots. There was also a slight reduction in potato blight spores under mesh, and the actual occurrence of blight was slightly reduced in one trial. The results of this study indicate that mesh crop covers could provide a viable option for potato growers who wish to protect their crops from TPP without using chemical insecticides.
    New Zealand Journal of Crop and Horticultural Science 03/2015; 43(2):1-11. DOI:10.1080/01140671.2015.1015576
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    ABSTRACT: Photosynthetic rate and the kernel-filling process are two crucial determinants of kernel yield in cereal crops. In the present study, the dynamic photosynthetic rates (Pn), kernel-filling characteristics, and kernel-filling rate and duration of five big-spike wheat lines (Triticum aestivum; 2005, 2026, 2037, 2038 and 2040) were compared with a control multiple-spike cultivar (Xi'nong 979) in 2010–11 and 2011–12. The 1000-kernel weight of the upper, middle and basal parts of the spike experienced a ‘slow-fast-slow’ pattern of growth from flowering to maturity. The big-spike lines had greater dry matter accumulations than the control cultivar 46 days after flowering, and also had higher kernel-filling rates in the basal part of the spike during the late growth period and greater kernel weights in the middle part of the spike throughout the entire kernel-filling process. The kernel-filling rates of the different parts of the spike during the three kernel-filling stages were ranked in the order of V2 (rapidly increasing kernel-filling stage) > V3 (slowly increasing kernel-filling stage) > V1 (moderately increasing kernel-filling stage). The mean Pn for each of the big-spike lines was lower than that of the control cultivar. These results indicate that the plumpness, size and weight of kernels produced by the big-spike lines can likely be increased by simultaneously increasing the photosynthetic rate and the kernel-filling duration during the late kernel-filling stage.
    New Zealand Journal of Crop and Horticultural Science 03/2015; DOI:10.1080/01140671.2014.994644
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    ABSTRACT: Extending the storage potential of feijoa would enable export to new markets. This work investigates the effect of combinations of 1-methylcyclopropene (1-MCP) and reduced oxygen atmospheres at 4 °C on feijoa quality. After harvest, feijoa were treated at 20 °C with 500 nL L−1 for 3 h or 1000 nL L−1 for 12 h of 1-MCP and air (as a control). Subsequent storage conditions at 4 °C were either: 2 kPa O2 and 0 kPa CO2; 5 kPa O2 and 0 kPa CO2; or air (as a control). Fruit were subsequently assessed fortnightly for up to 10 weeks. 1-MCP treatment was found to have no impact on delaying deterioration during storage. Reduced oxygen atmospheres delayed loss of firmness and titratable acidity during storage. However, after 4 weeks of storage, surface injury was most severe in the 2 kPa O2 treatment. Further research on extending storage life of feijoa is required.
    New Zealand Journal of Crop and Horticultural Science 03/2015; 43(2):1-10. DOI:10.1080/01140671.2014.991333
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    ABSTRACT: The changes in endogenous abscisic acid (ABA) content during ‘Hanagosho’ persimmon (Diospyros kaki Thunb.) development and maturation, as well as the effects of ABA, nordihydroguaiaretic acid (NDGA), 1-methylcyclopropene (1-MCP) application and polyethylene film package treatment on detached young fruit during fruit softening and senescence were investigated. The results showed that the ABA content in both peel and pulp peaked at 30 and 140 days after full bloom (DAFB). Moreover, the ABA content in peel at 30 and 140 DAFB was 17 and 29 times higher than in pulp, respectively. Dehydration in detached fruits induced the production of ABA and ethylene, which further led to fruit softening, and during this process ABA peaked earlier than ethylene. Expressions of the ethylene biosynthesis gene DkACS2 and ethylene oxidase gene DkACO1 were increased by the ABA treatment and their expression peaks also appeared earlier. However, expressions of DkACS2 and DkACO1 were down-regulated by the application of NDGA and 1-MCP, and their expression peaks were delayed. The peak time of 9-cis-epoxycarotenoid dioxygenase genes (DkNCED1) expression was not advanced under ABA, NDGA and 1-MCP treatments. In package-treated fruits, expressions of DkNCED1, DkACS2 and DkACO1 were significantly down-regulated and their expression peaks were delayed. In conclusion, we propose that dehydration could induce the expression of DkNCED1 and trigger ABA biosynthesis, while ABA could induce the expressions of DkACS2 and DkACO1, which initiates the biosynthesis of ethylene, consequently accelerating fruit softening and ripening.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(2):1-12. DOI:10.1080/01140671.2014.985317
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    ABSTRACT: An experiment was conducted to investigate the effects of deficit irrigation on yield and tree growth of young apricot trees (Prunus armeniaca L. cv. Ninfa) during three growing seasons with three irrigation intervals (7, 14 and 21 days) and five irrigation levels based on reduction coefficients (Kcp) of class A pan evaporation (0.0, 0.25, 0.50, 0.75 and 1.00). Growth and yield variables such as trunk diameter, mean branch length, volume of tree, total number of fruit, mean fruit weight, total fruit yields of trees, evapotranspiration and water use efficiencies were determined. While the irrigation interval treatments had significant effects on trunk diameters and branch lengths of the trees, the irrigation level treatments significantly affected all the tree growth variables. Variation in irrigation level also affected yield, with yield and fruit size increasing as irrigation increased up to at least 0.75 of pan evaporation. The treatment with 25% water deficit and a 14-day irrigation interval is suggested as the most suitable irrigation strategy for young apricot trees under a Mediterranean climate.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(2):1-12. DOI:10.1080/01140671.2014.979838
  • Wu · Li · Wang · Shi · Zhao · Ren · Guo
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    ABSTRACT: Allene oxide synthase (AOS), which is a cytochrome P450 (CYP74A), catalyses the first step in the biosynthesis of jasmonic acid from lipoxygenase-derived hydroperoxides of free fatty acids. The full-length cDNA of an AOS-like gene was cloned from Brassica oleracea using rapid amplification of cDNA ends and was designated as BoAOS. The BoAOS expression level was higher in alabastrums and flowers than in other tissues of cabbage, as determined by real-time reverse transcription polymerase chain reaction (RT-PCR). To characterize the BoAOS gene, Arabidopsis was transformed via Agrobacterium tumefaciens with a vector to express the gene under the control of a strong constitutive promoter, CaMV35S (Cauliflower Mosaic Virus). Based on analyses of tolerance to drought stress, compared with control plants, the overexpression of BoAOS in transgenic plants increased the endogenous jasmonic acid level and conferred higher tolerance to drought stress. Therefore, we suggest that BoAOS may be a suitable candidate gene to produce transgenic plants with tolerance to drought stress.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(1). DOI:10.1080/01140671.2014.940982
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    ABSTRACT: Fruit rots are some of the most important diseases of grape and strawberry. With recent public concern regarding pesticide residues on fruit, there is a need for alternative disease management practices that will reduce the risk to consumers. The main aim of this study was to investigate the effectiveness of the commercial product BOTRY-Zen (active ingredient Ulocladium oudemansii [U3 strain]) to control strawberry and grape fruit rots. BOTRY-Zen at 6 g/L reduced significantly the percentage of rotted fruit in comparison with the untreated control. However, its effectiveness was significantly less than that of the fungicide Switch 25/37.5 WG (fludioxonil: cyprodinil) at a rate of 1 g/L (recommended by producer). There was no significant difference between the BOTRY-Zen at rate of 4 g/L and untreated plants. The results of this study showed that the commercial product BOTRY-Zen, at 6 g/L, could be a useful tool to control fruit rots of strawberry and grape in biological fruit production systems.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(1). DOI:10.1080/01140671.2014.958502
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    ABSTRACT: Control methods for tomato-potato psyllid (TPP; Bactericera cockerelli) are currently dominated by the use of synthetic biocides. A non-chemical alternative for TPP management is crop mesh, which forms a physical barrier between crop and pest. This study examined the ability of TPP adults to penetrate, or lay eggs through, 22 commercially available crop meshes using a laboratory bioassay. Adult TPP were prevented from moving through the mesh if the mesh complied with any one of the following criteria: shortest pore length 2. Eggs were found on foliage only when TPP adults had penetrated the mesh, suggesting that eggs could not be laid through the mesh. The results indicate that crop meshes may provide non-chemical control for TPP that can be used by organic growers, and producers attempting to reduce chemical inputs as part of integrated pest management.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(1). DOI:10.1080/01140671.2014.949800
  • Zhang · Han · Song · Zhao · Liu · Hirst
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    ABSTRACT: In China, apple (Malus × domestica Borkh.) nursery stock is generally of low quality because of extremely high planting density. The objective of this study was to determine the optimum planting density of 2-year-old grafted apple trees. Tree growth (height, trunk diameter, leaf area index) increased as density decreased. Trees grown at high densities (14.3–50 plants/m2) were the shortest with the smallest trunk diameters and leaf areas, whereas trees grown at lower densities (4.8–10 plants/m2) were generally largest in terms of height, diameter and leaf area. Trees grown at lower densities tended to have higher bud dry weight, leaf dry weight, nitrogen content, total soluble sugar concentration and total non-structural carbohydrate content. Higher levels of these parameters were generally observed with tree densities at or below 10 plants/m2. Therefore we conclude that 10 plants/m2 is the optimum density for maximizing the number of trees produced per unit land area while maintaining tree quality of nursery stock.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(1). DOI:10.1080/01140671.2014.900093
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    ABSTRACT: Zygotic embryos of three herbaceous peony (Paeonia lactiflora Pall.) cultivars (‘Fen Yu Nu’, ‘Zhong Sheng Fen’ and ‘Zhu Sha Pan’) were used to study embryo germination and optimum plant growth regulator (PGR) combinations for in vitro propagation and root initiation. Mature zygotic embryos (>90 days after flowering [DAF]) gave better germination and survival than immature zygotic embryos (50–70 DAF). A protocol for initiating shoot growth and axillary shoot proliferation was established using mature embryos. The best results were obtained when using excised zygotic embryos (EZEs) obtained by removing the testa and endosperm from the seed. The best medium for EZE germination (an embryo with cotyledons) was half-strength Murashige and Skoog (MS) medium (with double-strength CaCl2) supplemented with 0.5 mg L−1 6-benzyladenine (BA) and 0.5 mg L−1 gibberellic acid (GA3). The best medium for axillary shoot proliferation was half-strength MS medium (including double-strength CaCl2) supplemented with 1 mg L−1 BA and 1 mg L−1 GA3. PGR-free half-strength MS was the best medium for promoting root development on seedlings (a germinated EZE with tender leaves) and for robust in vitro seedling establishment. The acclimatization of herbaceous peony remains the most challenging step of the in vitro protocol.
    New Zealand Journal of Crop and Horticultural Science 01/2015; 43(1). DOI:10.1080/01140671.2014.944548