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

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: 0.27

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 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 0.57
Cited half-life 0.00
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.18
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

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: A study over two growing seasons evaluated the efficacy and cost effectiveness of azoxystrobin (Amistar® SC), applied at different action thresholds and plant growth stages, on the incidence and severity of common rust of maize grown in the Pukekohe, New Zealand. Azoxystrobin applied as a preventative before disease symptoms appeared, or at the onset of disease symptoms, gave equal or better control than fungicide applications applied at 3% and 6% rust thresholds. However, using a 3% disease threshold up to the tasselling stage to time the application of azoxystrobin, controlled common rust in the more severe rust season (2008–09) and saved fungicide application costs associated with preventative (calendar) or disease-onset applications of azoxystrobin in the less severe rust season (2007–08) when the rust levels did not reach 3% by the tasselling stage. The maize hybrid 34D71 used was classified as moderately susceptible to common rust and, from the research presented here, it appears that although azoxystrobin applications reduced common rust severity, the lack of yield gains suggests that azoxystrobin applications in northern New Zealand may be economic only when growing highly susceptible maize varieties.
    New Zealand Journal of Crop and Horticultural Science 12/2014; 42(2).
  • New Zealand Journal of Crop and Horticultural Science 12/2014; 42(2):111-117.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Red light (10–12 lx) has been shown to induce the accumulation of steroidal glycoalkaloids (SGA) in potato (Solanum tuberosum) tubers. This study was to analyse the impact of genotypes, red light illumination and duration of incubation on SGA biosynthesis at the transcriptional level. The microtubers of wild species S. chacoense and cultivated potato varieties Shepody, Favorita, Longshu-3 and Zhuangshu-3 were tested. After 24 h incubation in the dark, the genes coding for hydroxymethylglutaryl coenzyme A reductase (hmg1, hmg2) and squalene synthase (pss1) remained relatively stable in S. chacoense and Longshu-3. The gene coding for vetispiradiene synthase (pvs1) was significantly induced in Favorita and Longshu-3. The expressions of sgt1 (solanidine galactosyl transferase) and sgt3 (rhamnosyltransferase) were induced in all tested varieties except S. chacoense. The transcript abundance of hmg1, hmg2, sgt1 and sgt3 was increased with red light illumination and incubation duration, but pvs1 was decreased. The results imply a feedback regulation system at the transcriptional level in SGA biosynthesis during red light illumination.
    New Zealand Journal of Crop and Horticultural Science 12/2014; 42(2).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Pseudomonas syringae pv. actinidiae (Psa) is an emerging disease of kiwifruit (Actinidia sp.). It has the potential to cause considerable production losses; therefore the ability to monitor and map the disease is important for industry-wide disease management. Using industry-collected infection data and an archived time-series of high-resolution satellite imagery, Psa disease monitoring in kiwifruit orchards was attempted for the 2010–11 growing season in the Bay of Plenty, New Zealand. Multiple vegetation indices were generated from imagery and a binomial logistic regression used to relate these vegetation indices to the Psa disease response. Results showed that the early season (2 October) photosynthetic vigour ratio was the most effective for differentiating infected and non-infected orchards. Omission and commission errors were observed, but were in part due to issues with data quality. The results were encouraging for the potential timely use of satellite imagery for monitoring and mapping Psa infections in kiwifruit.
    New Zealand Journal of Crop and Horticultural Science 12/2014; 42(4):303-311.
  • New Zealand Journal of Crop and Horticultural Science 11/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Sour cherries (Prunus cerasus L.) are rich in anthocyanins and have a correspondingly high antioxidant activity and potential health benefits with respect to the prevention of many diseases, including cancers and diabetes. As one of the centres of origin of the subgenus Cerasus, Iran is rich in cherry germplasm resources. The aim of this research was to evaluate promising Iranian sour cherries for different fruit quality characteristics. Generally, significant differences (P ≤ 0.05) were observed across the sour cherry genotypes for characters such as fruit weight (FW) (1.89–5.51 g), firmness (0.17–0.37 Nmm−1), total sugars (14.57–21.54 °Brix), titratable acidity (0.91%–2.81% malic acid), total organic acids (381.04–1742.50 mg 100 g−1), total phenolic content (184.10–625.38 mg GAE 100 g−1), total anthocyanin content (17.49–123.80 mg cy-3-gly 100 g−1) and total antioxidant activity (10.09%–28.79% FW). In addition, a wide variation in fruit colour and sensory quality were observed within the studied genotypes. It was found that Iranian selections such as KaThLaSSGe21, Hamedan, KaTaJo2Ge9, KrRIV4C20, EsASC1V1SS1 and KaThLa3Ge23 generally scored higher for desirable fruit characteristics across this range of parameters than existing commercial genotypes used as the control comparisons. Thus, they can be considered as promising genotypes for further evaluation in cherry breeding programmes, as well as being potentially useful for the cherry juice/concentrate industry.
    New Zealand Journal of Crop and Horticultural Science 09/2014; 42(4):275-287.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Temperature has a key influence on plant growth. Rising temperatures associated with the enhanced greenhouse effect are likely to have important impacts on the plants that humans grow for food. This review examines some of the implications of elevated temperature on pome fruit in Australia, where the pome fruit industry is a valuable contributor to economic and social stability in rural regions. Many pome fruit growing regions are likely to become too hot in the future for viable production from existing tree varieties and there are few cooler regions available to establish new orchards. Nonetheless, it is anticipated that economically sustainable production in existing locations could be maintained at least in the short term by deploying adaptive strategies such as on-farm practices that help cool and protect fruit crops. Under predicted climate change scenarios the need for adaptation is clear if the Australian pome fruit industry is to survive.
    New Zealand Journal of Crop and Horticultural Science 08/2014; 42(1).
  • [Show abstract] [Hide abstract]
    ABSTRACT: The efficacy of the plant growth regulator uniconazole (Sumagic®) for manipulating pyrethrum canopy architecture and enhancing yield was evaluated in each of 3 years across northern Tasmania, Australia. Trials examined the efficacy of, and factors influencing, reliability and magnitude of responses, including product rate, application timing, the benefits of adding a non-ionic organosilicone surfactant (Activator®) and combining application with urea. Results suggested that a rate of 100 g L−1 uniconazole (2 L ha−1 Sumagic®) was the most efficacious and that the addition of Activator® was unnecessary. However, at the highest rate, the cost of using the product became prohibitive and therefore trials in the latter 2 years of the study were conducted using the lower rate. Timing of application was not critical for efficacy and yield enhancements were observed when uniconazole was applied when stem length ranged from 16 to 36 cm, coinciding with a 30-day period in spring. Physiological effects of uniconazole were significant reductions in the height of stems (approximately 6 cm at flowering), increases in green leaf area and the number of flowers produced per unit area; the effects were independent of field age. This information has formed the basis for a cost-benefit analysis for the adoption of uniconazole into pyrethrum production in Australia.
    New Zealand Journal of Crop and Horticultural Science 08/2014; 42(1).
  • New Zealand Journal of Crop and Horticultural Science 07/2014; 42(4):233-246.
  • New Zealand Journal of Crop and Horticultural Science 07/2014; 42(4):247-264.
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    ABSTRACT: A field experiment was conducted over 2 years in a semiarid region of Australia to determine the root water uptake–soil water regime relationship and water use of drip-irrigated olive (Olea europaea L.) (cv. Corregiolo). A soil water balance approach was used to estimate the olive trees' water use. Olive evapotranspiration during the first (‘on’) year was 620, 685 and 723 mm for rainfed (during pit-hardening period), deficit (during pit-hardening period) and irrigated treatments, respectively. These values were 555, 610 and 673 mm during the second (‘off’) year. Soil water monitoring in three dimensions was used to infer vertical and lateral root distribution and root activity. The soil water depletion pattern indicated that most of the roots were in the top 60 cm soil depth and aligned along the tree rows. This information is important for fertilizer application and for the placement of drip laterals and soil water measurement equipment used for irrigation scheduling. It also underscores the importance of using three-dimensional models to understand root zone hydrology of drip-irrigated trees.
    New Zealand Journal of Crop and Horticultural Science 07/2014; 42(3).
  • New Zealand Journal of Crop and Horticultural Science 01/2014; 42(3):161-169.
  • New Zealand Journal of Crop and Horticultural Science 01/2014; 42(3):205-216.
  • New Zealand Journal of Crop and Horticultural Science 01/2014; 42(3):183-193.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The export of New Zealand tomatoes is restricted to Australia and Pacific Island nations and constrained by the cost and shortage of airfreight space. The industry does not have a consistent commercial solution to enable sea freight to the Asian market. A potent inhibitor of ethylene response, 1-methylcyclopropene (1-MCP) has emerged as a tool for controlling ripening and extending the shelf life of many fresh products. Knowledge of 1-MCP effects on cool-stored fresh tomatoes is limited. In the present study, mature-green and breaker tomatoes treated with 1-MCP were stored at 2.5 °C for 5 weeks. At this temperature, 1-MCP treatment enhanced Alternaria decay severity (from latent infections) and resulted in softer fruit than non-treated controls, whereas 1-MCP reduced decay from ‘ripe rots’ when fruit were ripened at 20 °C. These results suggest that the ripening delay induced by 1-MCP may increase tomato chilling sensitivity during cool storage. While 1-MCP shows promising results in extending postharvest storage life in many crops, including tomatoes, these results indicated that application of 1-MCP before cool storage is not appropriate for assisting commercial sea freight of tomatoes. Nonetheless, it may be possible to apply 1-MCP and then store tomatoes above the temperatures that cause chilling injury in order to extend storage life.
    New Zealand Journal of Crop and Horticultural Science 01/2014; 42(2).