Pub Date : 2023-11-13DOI: 10.1080/01140671.2023.2278791
Sarah Mansfield, Balanama Asigau, Chikako van Koten, Sulav Paudel, Mike Bowie, Trevor A. Jackson, Sean D. G. Marshall
Coconut production in the Pacific Islands is threatened by coconut rhinoceros beetle (CRB). Distinctive feeding damage caused by adults is often the first indicator of CRB activity in a new location. Multiple approaches to damage assessment have been used, reflecting observers’ experience. The lack of standardisation makes it difficult to compare CRB impacts on coconut palms over time. We examine damage assessment from three perspectives: participants, power and purpose. Participants applied binary, 3-point and 5-point damage scales consecutively to photographs of damaged palms. Participant responses were more accurate using the binary scale compared with the 5-point scale. Experience with CRB improved accuracy, but this did not wholly compensate for the effect of scale complexity. Calculations of statistical power determined minimum sample sizes to detect a 20% change in palm damage was 50 palms for the binary scale, 150 palms for the 3-point scale and > 200 palms for the 5-point scale, when the change in damage was spread across damage categories. More complex damage scales did not increase the likelihood of detecting significant changes in palm damage. With real-world examples, including detecting new outbreaks and managing established populations, recommendations were developed to standardise damage assessment for CRB on coconut palms.
{"title":"Assessment of coconut palm damage caused by coconut rhinoceros beetle, <i>Oryctes rhinoceros</i> (Coleoptera: Scarabaeidae)","authors":"Sarah Mansfield, Balanama Asigau, Chikako van Koten, Sulav Paudel, Mike Bowie, Trevor A. Jackson, Sean D. G. Marshall","doi":"10.1080/01140671.2023.2278791","DOIUrl":"https://doi.org/10.1080/01140671.2023.2278791","url":null,"abstract":"Coconut production in the Pacific Islands is threatened by coconut rhinoceros beetle (CRB). Distinctive feeding damage caused by adults is often the first indicator of CRB activity in a new location. Multiple approaches to damage assessment have been used, reflecting observers’ experience. The lack of standardisation makes it difficult to compare CRB impacts on coconut palms over time. We examine damage assessment from three perspectives: participants, power and purpose. Participants applied binary, 3-point and 5-point damage scales consecutively to photographs of damaged palms. Participant responses were more accurate using the binary scale compared with the 5-point scale. Experience with CRB improved accuracy, but this did not wholly compensate for the effect of scale complexity. Calculations of statistical power determined minimum sample sizes to detect a 20% change in palm damage was 50 palms for the binary scale, 150 palms for the 3-point scale and > 200 palms for the 5-point scale, when the change in damage was spread across damage categories. More complex damage scales did not increase the likelihood of detecting significant changes in palm damage. With real-world examples, including detecting new outbreaks and managing established populations, recommendations were developed to standardise damage assessment for CRB on coconut palms.","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":"56 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136349039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTCapsicum (Capsicum annuum L.) is a popular fruit (culinary vegetable) which is consumed for its flavour and functional food potential, associated with the abundance of antioxidant phytochemicals present such as phenolics and flavonoids. This study aimed to explore the impacts to capsicum growth and functional food value from supplementation with a biostimulant complex (TRIA-PK) comprising triacontanol (TRIA), phosphorous (P), and potassium (K). Plants were grown hydroponically under controlled conditions wherein TRIA-PK was provided to treatment plants within the liquid nutrient solution. Ripe fruits were sampled and compared for impacts to yield, quality, and functional food measures. Application of TRIA-PK significantly increased total phenolics (p = 0.014), flavonoids (p = 0.003), and peroxidase activity (p = 0.030), which reflect increased functional antioxidant activity within fruits. Of note, this increased functional food value also aligned with a 9-day reduction in median harvest timing (p < 0.001) and did not come at the cost of plant yield, with no statistically significant differences between treatments. These results provide valuable information to capsicum farmers, highlighting that supplementation of fertiliser solutions with a TRIA-PK complex is a potential strategy for enhancing the functional food value of capsicum for consumers.KEYWORDS: Hydroponicsbell pepperantioxidantsuperfoodphenolicsflavonoids AcknowledgementsThe authors would also like to acknowledge Nutrified Pty Ltd for the industry scholarship which supported this work.Author contributionsKW carried out experiments, constructed figures, and drafted the manuscript. JSP assisted with experiments and manuscript drafting, editing, and revision. HG and TS drafted, edited, and reviewed the manuscript.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was financially supported by Nutrifield Pty Ltd.
{"title":"Enhancement of capsicum ( <i>Capsicum annuum</i> L.) functional food value through nutrient supplementation with a biostimulant complex comprising triacontanol, phosphate, and potassium","authors":"Kimber Wise, Jamie Selby-Pham, Tomer Simovich, Harsharn Gill","doi":"10.1080/01140671.2023.2278799","DOIUrl":"https://doi.org/10.1080/01140671.2023.2278799","url":null,"abstract":"ABSTRACTCapsicum (Capsicum annuum L.) is a popular fruit (culinary vegetable) which is consumed for its flavour and functional food potential, associated with the abundance of antioxidant phytochemicals present such as phenolics and flavonoids. This study aimed to explore the impacts to capsicum growth and functional food value from supplementation with a biostimulant complex (TRIA-PK) comprising triacontanol (TRIA), phosphorous (P), and potassium (K). Plants were grown hydroponically under controlled conditions wherein TRIA-PK was provided to treatment plants within the liquid nutrient solution. Ripe fruits were sampled and compared for impacts to yield, quality, and functional food measures. Application of TRIA-PK significantly increased total phenolics (p = 0.014), flavonoids (p = 0.003), and peroxidase activity (p = 0.030), which reflect increased functional antioxidant activity within fruits. Of note, this increased functional food value also aligned with a 9-day reduction in median harvest timing (p < 0.001) and did not come at the cost of plant yield, with no statistically significant differences between treatments. These results provide valuable information to capsicum farmers, highlighting that supplementation of fertiliser solutions with a TRIA-PK complex is a potential strategy for enhancing the functional food value of capsicum for consumers.KEYWORDS: Hydroponicsbell pepperantioxidantsuperfoodphenolicsflavonoids AcknowledgementsThe authors would also like to acknowledge Nutrified Pty Ltd for the industry scholarship which supported this work.Author contributionsKW carried out experiments, constructed figures, and drafted the manuscript. JSP assisted with experiments and manuscript drafting, editing, and revision. HG and TS drafted, edited, and reviewed the manuscript.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was financially supported by Nutrifield Pty Ltd.","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":"81 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135037361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-05DOI: 10.1080/01140671.2023.2255160
A. Cinantya, A. Manea, A. Ossola, M. Leishman
{"title":"Biostimulant application practices in Australian urban forestry","authors":"A. Cinantya, A. Manea, A. Ossola, M. Leishman","doi":"10.1080/01140671.2023.2255160","DOIUrl":"https://doi.org/10.1080/01140671.2023.2255160","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47513526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-16DOI: 10.1080/01140671.2023.2245781
Juan M. Arjona-López, Lidia Aparicio-Durán, F. Gmitter, Rocío Calero-Velázquez, J. Grosser, Estefanía Romero-Rodríguez, Á. Hervalejo, F. Arenas-Arenas
{"title":"Physiological response of new citrus rootstocks under the effect of lime induced iron chlorosis stress conditions","authors":"Juan M. Arjona-López, Lidia Aparicio-Durán, F. Gmitter, Rocío Calero-Velázquez, J. Grosser, Estefanía Romero-Rodríguez, Á. Hervalejo, F. Arenas-Arenas","doi":"10.1080/01140671.2023.2245781","DOIUrl":"https://doi.org/10.1080/01140671.2023.2245781","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43477462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-12DOI: 10.1080/01140671.2023.2232335
Matheus de Freitas Souza, Silvio Vasconcelos de Paiva Filho, Victor Hugo Custodio Policarpo, G.B.P. Braz, G. Simon, E. L. Carmo, Antônio Jussiê Solino
{"title":"Genotype-environment interaction in maize hybrids: a multivariate relationship between yield components, morphological variables and disease tolerance","authors":"Matheus de Freitas Souza, Silvio Vasconcelos de Paiva Filho, Victor Hugo Custodio Policarpo, G.B.P. Braz, G. Simon, E. L. Carmo, Antônio Jussiê Solino","doi":"10.1080/01140671.2023.2232335","DOIUrl":"https://doi.org/10.1080/01140671.2023.2232335","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41652346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-03DOI: 10.1080/01140671.2021.2006241
L. Marques, Mateus da Silveira Pasa, A. A. Sezerino, P. Mello-Farias, J. L. Petri, F. Herter
ABSTRACT The main models used for estimating chill accumulation throughout the dormancy period of temperate fruit trees in Brazil were developed in temperate regions in the northern hemisphere. Thus, they exhibit low precision when they are used in regions with mild winters. However, there are several little-known models that are more precise. This study aimed at evaluating the precision of eight different estimation models of chill accumulation applied to five apple cultivars which were grafted on two distinct rootstocks in a region with mild winters. Based on the coefficient of variation, the Microsoft Excel® program was used for evaluating the precision of the following models: Utah, modified Utah, CH < 7.2°C, CH < 10°C, CH < 15°C, Low chill, Taiwan low chill and Daily positive Utah chill unit (PCU). The lowest precision was attributed to both models Utah and CH < 7.2°C (the most common model in Brazil). Models CH < 15°C, Taiwan low chill, Low chill and modified Utah were considered precise (coefficient of variation < 15% in annual chill accumulation and to evaluate requirement to overcome dormancy in cultivars). No important differences were observed in models precision between ‘M-26’ and ‘M-9’ rootstocks.
{"title":"A survey of eight chilling models for apple trees in Southern Brazil under mild winters","authors":"L. Marques, Mateus da Silveira Pasa, A. A. Sezerino, P. Mello-Farias, J. L. Petri, F. Herter","doi":"10.1080/01140671.2021.2006241","DOIUrl":"https://doi.org/10.1080/01140671.2021.2006241","url":null,"abstract":"ABSTRACT The main models used for estimating chill accumulation throughout the dormancy period of temperate fruit trees in Brazil were developed in temperate regions in the northern hemisphere. Thus, they exhibit low precision when they are used in regions with mild winters. However, there are several little-known models that are more precise. This study aimed at evaluating the precision of eight different estimation models of chill accumulation applied to five apple cultivars which were grafted on two distinct rootstocks in a region with mild winters. Based on the coefficient of variation, the Microsoft Excel® program was used for evaluating the precision of the following models: Utah, modified Utah, CH < 7.2°C, CH < 10°C, CH < 15°C, Low chill, Taiwan low chill and Daily positive Utah chill unit (PCU). The lowest precision was attributed to both models Utah and CH < 7.2°C (the most common model in Brazil). Models CH < 15°C, Taiwan low chill, Low chill and modified Utah were considered precise (coefficient of variation < 15% in annual chill accumulation and to evaluate requirement to overcome dormancy in cultivars). No important differences were observed in models precision between ‘M-26’ and ‘M-9’ rootstocks.","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":"51 1","pages":"420 - 431"},"PeriodicalIF":1.3,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46875318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-02DOI: 10.1080/01140671.2023.2229770
E. Veronesi, Christopher J. Thompson, S. Goldson
{"title":"Insect biological control of the tomato-potato psyllid Bactericera cockerelli, a review","authors":"E. Veronesi, Christopher J. Thompson, S. Goldson","doi":"10.1080/01140671.2023.2229770","DOIUrl":"https://doi.org/10.1080/01140671.2023.2229770","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46823077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-22DOI: 10.1080/01140671.2023.2221859
F. Mas, R. Horner, L. Manning, Aimee R Harper, S. Brierley, S. Defaveri, Lise Leroy, C. Mille
{"title":"Differential olfactory responses associated with host plant shift by the fruit-piercing moth, Eudocima phalonia, in the Pacific islands","authors":"F. Mas, R. Horner, L. Manning, Aimee R Harper, S. Brierley, S. Defaveri, Lise Leroy, C. Mille","doi":"10.1080/01140671.2023.2221859","DOIUrl":"https://doi.org/10.1080/01140671.2023.2221859","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41677870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-14DOI: 10.1080/01140671.2023.2224035
JaeWook Shin, B. Lee, Meiyan Cui, Hyein Lee, Jeesang Myung, H. Na, C. Chun
{"title":"Effects of supplemental root-zone pipe heating systems on the growth and development of strawberry plants in a greenhouse during the winter season","authors":"JaeWook Shin, B. Lee, Meiyan Cui, Hyein Lee, Jeesang Myung, H. Na, C. Chun","doi":"10.1080/01140671.2023.2224035","DOIUrl":"https://doi.org/10.1080/01140671.2023.2224035","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45679605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-07DOI: 10.1080/01140671.2023.2221033
F. J. Soldateli, V. Both, Lucas Mallmann Wendt, Magno Roberto Pasquetti Berghetti, Carine Borges Batista, Flavio Roberto Thewes, Vagner Ludwig, Giovani Gonçalves dos Santos, F. Thewes, A. Brackmann
{"title":"Alternatives to SO2 to maintain phenolic compounds and overall quality of ready-to-eat table grapes during long-term storage","authors":"F. J. Soldateli, V. Both, Lucas Mallmann Wendt, Magno Roberto Pasquetti Berghetti, Carine Borges Batista, Flavio Roberto Thewes, Vagner Ludwig, Giovani Gonçalves dos Santos, F. Thewes, A. Brackmann","doi":"10.1080/01140671.2023.2221033","DOIUrl":"https://doi.org/10.1080/01140671.2023.2221033","url":null,"abstract":"","PeriodicalId":19297,"journal":{"name":"New Zealand Journal of Crop and Horticultural Science","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48781095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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