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New Zealand journal of experimental agriculture最新文献

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Cryptosporiopsis citri sp. nov.; cause of a citrus leaf spot in the Pacific Islands. 柑桔隐孢子虫;导致太平洋岛屿上的柑橘叶斑病。
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425632
P. Johnston, R. A. Fullerton
{"title":"Cryptosporiopsis citri sp. nov.; cause of a citrus leaf spot in the Pacific Islands.","authors":"P. Johnston, R. A. Fullerton","doi":"10.1080/03015521.1988.10425632","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425632","url":null,"abstract":"Abstract A fungus causing a leaf-spotting disease and leaf drop of Citrus spp. in the Pacific Islands is described as Cryptosporiopsis citri sp. nov. Previously, this fungus was recorded as Guigndrdia citricarpa Kiely. C. citri differs from G. citricarpa in morphology, cultural characteristics, and disease symptoms.","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"48 1","pages":"159-163"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75819455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Field evaluation of pelletised calcined and insoluble residue of Christmas Island ‘C’ phosphates 圣诞岛' C '磷酸盐颗粒煅烧和不溶性残留物的现场评价
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425636
R. Longhurst, M. O'connor, H. Rothbaum
{"title":"Field evaluation of pelletised calcined and insoluble residue of Christmas Island ‘C’ phosphates","authors":"R. Longhurst, M. O'connor, H. Rothbaum","doi":"10.1080/03015521.1988.10425636","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425636","url":null,"abstract":"Abstract Two pelletised fertilisers, calcined and the alkali insoluble residues of Christmas Island ‘C’ phosphate (CICP), were compared with powdered materials in a pasture mowing trial. The pelletising process used 10% non-swelling New Zealand bentonite clay to bind the ground materials. The pelletised materials performed well under field conditions. Over 2 years the general trend was for pelletised materials to produce slightly more pasture and to raise Olsen P soil levels compared with the corresponding powdered products.","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"1 1","pages":"179-181"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72810694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Field performance and fruit quality of a range of strawberry cultivars grown in mid Canterbury 在坎特伯雷中部种植的一系列草莓品种的田间性能和果实品质
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425626
K. Carter, R. Haynes, R. Stoker
{"title":"Field performance and fruit quality of a range of strawberry cultivars grown in mid Canterbury","authors":"K. Carter, R. Haynes, R. Stoker","doi":"10.1080/03015521.1988.10425626","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425626","url":null,"abstract":"Abstract The field performance of five University of California strawberry cultivars: ‘Aiko’, ‘Brighton’, ‘Cruz’, and ‘Pajaro’; and four cultivars currently grown in New Zealand: ‘Sequoia’, ‘Ostara’, ‘Tioga’, and ‘Redgauntlet’, were evaluated in mid Canterbury in a 3-year field trial. Yield, fruit size, the chemical properties relating to fruit quality, and leaf nutrient concentrations were measured and compared. Of the Californian cultivars, ‘Aiko’ and ‘Brighton’ produced the highest total yields over the 3-year period. Their yields were similar to those of ‘Tioga’ and ‘Sequoia’ and higher than those of ‘Ostara’ and ‘Redgauntlet’. ‘Aiko’, however, produced a low yield in the first season. ‘Brighton’, like ‘Ostara’, produced its crop over a prolonged period whereas ‘Aiko’, like ‘Redgauntlet’, produced a second crop in late summer. Accordingly in Canterbury, ‘Brighton’, with its large fruit, is becoming popular for the gate sales market whereas ‘Aiko’ is replacing ‘Redgauntlet’ as a processing and fresh ex...","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"43 1","pages":"121-126"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90771463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Performance of six timothy (Phleum pratense L.) lines in pure swards under grazing 放牧条件下6个蒂莫西系在纯草地上的表现
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425624
J. Caradus
{"title":"Performance of six timothy (Phleum pratense L.) lines in pure swards under grazing","authors":"J. Caradus","doi":"10.1080/03015521.1988.10425624","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425624","url":null,"abstract":"Abstract The long-term persistence of timothy grass (Phleum pratense L.) in grazed pastures is generally regarded as inadequate. A selection of cultivars were compared in a small plot trial which was managed at contrasting grazing frequencies for 2 years and in which yield, height, and tiller numbers were measured. The whole trial was grazed regularly during the next 5 years and persistence determined as the proportion of timothy in the herbage harvested 6 and 7 years after sowing. The pasture type was more prostate and tillered than ‘Grasslands Kahu’. However, Kahu and the selection within Kahu were the highest yielding and Kahu was the most persistant. The low persistence of the prostrate type is discussed and partly attributed to its poor adaptation to New Zealand conditions.","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"49 1","pages":"109-112"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86078637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Species composition and management of winter sports fields 冬季运动场的物种组成与管理
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425625
P. Evans
{"title":"Species composition and management of winter sports fields","authors":"P. Evans","doi":"10.1080/03015521.1988.10425625","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425625","url":null,"abstract":"Abstract Results are presented from trials investigating the effects of species and management on winter sports fields. Perennial ryegrass was the species most resistant to artificial wear. A number of turf cultivars of ryegrass were, on average, as resistant as the coarser and taller-growing pasture types, with the advantage for management purposes of being easier to mow. Species in mixed swards reacted to wear as was expected from the pure sward results. Changes in the composition of mixed swards with time indicated that, in the absence of wear, browntop would dominate ryegrass. Wear is therefore an important factor in maintaining a high level of ryegrass in a turf. No effect of soil water content was obtained at the levels of wear investigated; this is contrary to general experience. Regular close mowing (19 mm) produced a denser and more wear-resistant turf than infrequent lax mowing (150/38 mm). Grass length at time of treatment had an effect on damage and recovery under lax mowing.","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"7 1","pages":"113-119"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84880910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of growth retardant soil residues on succeeding agricultural crops 生长阻残土对继代农作物的影响
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425634
J. Hampton
{"title":"Effect of growth retardant soil residues on succeeding agricultural crops","authors":"J. Hampton","doi":"10.1080/03015521.1988.10425634","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425634","url":null,"abstract":"Abstract The growth retardants paclobutrazol, flurprimidol, and chlormequat chloride may be used to increase perennial ryegrass seed yield. However, the former two retardants are soil-active and residues may affect succeeding crops. A trial at Palmerston North examined possible soil residual effects of all three retardants on succeeding crops of wheat, rape, turnip, Italian ryegrass, and field bean, sown 200 days after retardant application to the previous crop. Chlormequat chloride exhibited no soil residual activity. Paclobutrazol and flurprimidol reduced the stem length or plant height of all five species tested. Retardation of plant growth increased as the original retardant application rate increased. Paclobutrazol residues reduced total dry matter (DM) in field bean only. Reductions in stem length of wheat and Italian ryegrass were compensated by increased tillering and for turnip and rape by increased stem width. Flurprimidol residues, particularly at an original application rate of 2.0 kg a.i./ha,...","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"75 1","pages":"167-172"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86174930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
A comparative field evaluation of some potential sulphur fertiliser materials 几种潜在的含硫肥料材料的田间比较评价
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425637
B. Swanney, C. C. Boswell, P. Enright, A. G. Sinclair
{"title":"A comparative field evaluation of some potential sulphur fertiliser materials","authors":"B. Swanney, C. C. Boswell, P. Enright, A. G. Sinclair","doi":"10.1080/03015521.1988.10425637","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425637","url":null,"abstract":"Abstract The escalating cost of superphosphate, the traditional phosphorus (P) and sulphur (S) fertiliser in New Zealand, has led to increased awareness of high analysis P and S fertilisers. With S, interest has centred on elemental S (S°), but to be effective, S°fertilisers must be readily oxidised to supply sulphate-S (SO4-S) at a rate which satisfies plant requirements. This rate is largely dependent on particle size. Experimental batches of alternative S°fertilisers, with future commercial possibilities for New Zealand pastures, were assessed over three seasons, from 1982 to 1985, in a cool temperate environment. These products included granulated ground S°;mixtures of molten S° and sodium (Na) bentonite; a mixture of S° and anhydrous calcium sulphate; imported sulphur prills; imported ground gypsum; and S° particles in five size ranges. Their effectiveness was compared by reference to a nil S control treatment and to five rates of S applied as molten mixed sulphur superphosphate (MMSS). The prime ind...","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"6 1","pages":"183-192"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78347975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Evaluation of row spacings and support systems for autumn-fruiting raspberries 秋果树莓行间距和支撑系统的评价
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425629
F. Tabley, P. Rhodes, R. Haynes
{"title":"Evaluation of row spacings and support systems for autumn-fruiting raspberries","authors":"F. Tabley, P. Rhodes, R. Haynes","doi":"10.1080/03015521.1988.10425629","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425629","url":null,"abstract":"Abstract The effects of three inter-row spacings (3 m, 1.5 m, and 0.75 m), and two support systems (training vertically or on a V-shaped trellis) on total yield, yield components, and ease of hand picking of autumn rasperries (Rubus idaeus L. ‘Heritage’) was investigated in a 3-year field trial in Canterbury. In the first year, number of fruiting canes/m2 and yields/ha were both increased as row spacings were reduced from 3 to 0.75 m. However, in the second and third seasons, although these parameters were increased as spacings were reduced from 3 to 1.5 m, a further reduction in spacing to 0.75 m had no effect. Neither the number of berries per fruiting cane nor yield per fruiting cane were significantly affected by row spacings, although there was a tendency for mean berry weight to increase as row spacing was reduced. Reducing row spacing from 1.5 to 0.75 m made access to rows difficult and reduced picking rate. Training canes on a V trellis had no significant effect on any of the measured parameters a...","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"50 1","pages":"137-140"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74446773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
‘Tekau’—A new late main-crop potato cultivar 马铃薯晚熟主粮新品种Tekau
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425627
R. Genet
{"title":"‘Tekau’—A new late main-crop potato cultivar","authors":"R. Genet","doi":"10.1080/03015521.1988.10425627","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425627","url":null,"abstract":"Abstract ‘Tekau’ is a late maturing cultivar of potato (Solarium tuberosum L.) which is suitable for both fresh market and processing. The plant is characterised by the purple anthocyanin pigmentation of the stems. The tubers are smooth skinned and flat oval in cross-section. ‘Tekau’ has good levels of disease resistance and high yield potential. Its high tuber set means that few oversize tubers are produced but, unless growing conditions are favourable, many small tubers can result.","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"4 1","pages":"127-128"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83018769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Fungi causing storage rots on fruit of Cucurbita spp. 引起瓜类果实贮藏腐烂的真菌。
New Zealand journal of experimental agriculture Pub Date : 1988-04-01 DOI: 10.1080/03015521.1988.10425631
B. T. Hawthorne
{"title":"Fungi causing storage rots on fruit of Cucurbita spp.","authors":"B. T. Hawthorne","doi":"10.1080/03015521.1988.10425631","DOIUrl":"https://doi.org/10.1080/03015521.1988.10425631","url":null,"abstract":"Abstract Fungal storage rots were surveyed in cultivars of Cucurbita maxima and C. moschata during 1973 and 1974. Fourteen fungi were identified as pathogens of the fruit. The major pathogens were Fusarium culmorum, F. solani, and Didymella bryoniae; minor pathogens included Botrytis cinerea, Colletotrichum coccodes, F. acuminatum, F. equiseti, F. lateritium, F. sulphureum, Phoma exigua, P. herbarum, Phytophthora citricola, P. cryptogea, and Septoria cucurbitacearum.","PeriodicalId":19285,"journal":{"name":"New Zealand journal of experimental agriculture","volume":"189 1","pages":"151-157"},"PeriodicalIF":0.0,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75774925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
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