South African Journal of Plant and Soil最新文献_第7页

Cultivar and planting date effects on the growth, yield and quality of strawberries in the Western Cape, South Africa 栽培品种和种植日期对南非西开普省草莓生长、产量和品质的影响

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1956609

P. Parehwa, G. Linsley-Noakes, J. Jordaan, J. Pauw

{"title":"Cultivar and planting date effects on the growth, yield and quality of strawberries in the Western Cape, South Africa","authors":"P. Parehwa, G. Linsley-Noakes, J. Jordaan, J. Pauw","doi":"10.1080/02571862.2021.1956609","DOIUrl":"https://doi.org/10.1080/02571862.2021.1956609","url":null,"abstract":"In South Africa, strawberry Fragaria × ananassa (Duchesne ex Weston) Duchesne ex Rozier growers have not been able to extend the growing season and produce strawberries year-round primarily due to the types of cultivar available and climatic limitations. The objective of the study was to determine the effects of planting date- and day-neutral strawberry varieties on plant growth, yield and quality in the south-eastern region of the Western Cape. The experiment was conducted as a split-plot design with three replications. Planting dates were the whole plot treatments, while varieties constituted the sub-plot treatments. The sub-plot treatments were laid out in a randomised complete block design. Three day-neutral strawberry varieties, ‘Monterey’, ‘San Andreas’ and ‘Albion’ were planted at 30-day intervals from April to September for the 2018/2019 season in standard coir grow-bags at a density of 75 000 ha−1. ‘Monterey’ significantly outperformed ‘San Andreas’ which in turn significantly (p < 0.05) outperformed ‘Albion’ for crown number, flower number, yield and fruit size. ‘San Andreas’ produced significantly fewer runners than ‘Monterey’ and ‘Albion’. ‘Albion’ produced significantly higher total soluble solids followed by ‘Monterey’ and ‘San Andreas’. It was concluded that ‘Monterey’ planted in April and ‘San Andreas’ planted in August, can be used to extend the harvest season.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"407 - 410"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41694798","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

Tillage, crop rotation, residue management and biochar influence on soil chemical and biological properties 耕作、轮作、秸秆管理和生物炭对土壤化学和生物特性的影响

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1962421

Patrick Nyambo, B. Thengeni, C. Chiduza, T. Araya

{"title":"Tillage, crop rotation, residue management and biochar influence on soil chemical and biological properties","authors":"Patrick Nyambo, B. Thengeni, C. Chiduza, T. Araya","doi":"10.1080/02571862.2021.1962421","DOIUrl":"https://doi.org/10.1080/02571862.2021.1962421","url":null,"abstract":"Soil and crop productivity cannot be maintained unless declining soil fertility is replenished. A three-year factorial experiment using a split-split-plot design, replicated three times, was used to evaluate the response of pH, electrical conductivity, exchangeable cations (Ca, Mg, K and Na), microbial biomass carbon, total nitrogen and total carbon to conservation agriculture in the Eastern Cape, South Africa. The whole plot factors were conservation tillage and no tillage, the sub-plot factors three crop rotation practices (i.e. maize → oat → maize; maize → vetch → maize and maize → fallow → maize) and the sub-sub-plot factors three residue management practices (viz. residue retention; residue removal and biochar amendment). Soil pH and EC were not affected (p > 0.05) by these agricultural practices after 3 years. Magnesium (p < 0.05) and potassium (p < 0.01) were significantly affected by tillage at 0–5 cm depth. The tillage x crop rotation x residue management interaction was only significant (p < 0.01) for MBC at a depth of 0–5 cm depth. Interactions of tillage x crop rotation (p < 0.001) and crop rotation x residue management (p < 0.0001) were also significant. After three years, conservation agriculture resulted in net increases in total carbon, total nitrogen and MBC concentrations compared to conventional agricultural practices.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"390 - 397"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47612173","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

Influence of phosphorus fertiliser blends on grain yield, nutrient concentration, and profitability of soyabeans in the southern Guinea Savannah of Ghana 在加纳南部几内亚大草原，混合磷肥对粮食产量、养分浓度和大豆盈利能力的影响

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1959660

S. Adjei-Nsiah, J. K. Ahiakpa, K. Gyan, F. Kanampiu

{"title":"Influence of phosphorus fertiliser blends on grain yield, nutrient concentration, and profitability of soyabeans in the southern Guinea Savannah of Ghana","authors":"S. Adjei-Nsiah, J. K. Ahiakpa, K. Gyan, F. Kanampiu","doi":"10.1080/02571862.2021.1959660","DOIUrl":"https://doi.org/10.1080/02571862.2021.1959660","url":null,"abstract":"We conducted on-farm trials in the southern Guinea savannah of Ghana in 2016 and 2017 to evaluate soyabean response to three fertiliser blends to guide farmers towards profitable adoption of appropriate phosphorus fertiliser blend for improved soyabean production. Old Yara Legume, New Yara Legume and Triple Superphosphate fertiliser blends were evaluated. In both years, the phosphorus fertiliser blends were evaluated in a Randomised Complete Block Design with 20, 30, and 40 kg P ha−1 application rates together with control. Phosphorus fertiliser application increased soyabean yields by 1 070 kg ha−1. In 2016, fertiliser blend use efficiency ranged from 2.9 kg grain per kg fertiliser blend applied with the New Yara Legume applied at 40 kg P ha−1 to 7.4 kg grain per kg fertiliser blend applied with the Triple Superphosphate applied at 40 kg P ha−1 with significant differences between treatments. In 2017, blend use efficiency ranged from 2.5 kg grain per kg fertiliser blend applied with Old Yara Legume applied at 40 kg P ha−1 to 9.2 kg grain per kg fertiliser blend applied with the Triple Superphosphate applied at 40 kg P ha−1 with significant differences between treatments. However, phosphorus use efficiency did not significantly differ between the different treatments both in the 2016 and 2017 trials. In both 2016 and 2017 trials, the highest benefit cost ratio was attained at the lowest application rate for all the three fertiliser blends suggesting the need to review the current application rate of 30 kg P fertiliser ha−1 promoted in northern Ghana. Furthermore, the provision of credit and/or subsidy for farmers by the government is required to enable uptake and utilisation of fertilisers by farmers.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"381 - 389"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41538630","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

Trends in ethylene management strategies: towards mitigating postharvest losses along the South African value chain of fresh produce – a review 乙烯管理策略的趋势：减少南非新鲜农产品价值链上的采后损失——综述

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1938260

Bongo Mabusela, Z. A. Belay, B. Godongwana, N. Pathak, P. Mahajan, P. Mathabe, O. J. Caleb

{"title":"Trends in ethylene management strategies: towards mitigating postharvest losses along the South African value chain of fresh produce – a review","authors":"Bongo Mabusela, Z. A. Belay, B. Godongwana, N. Pathak, P. Mahajan, P. Mathabe, O. J. Caleb","doi":"10.1080/02571862.2021.1938260","DOIUrl":"https://doi.org/10.1080/02571862.2021.1938260","url":null,"abstract":"The management of ethylene during postharvest storage is of critical importance to fresh produce wholesalers and retailers. The management of ethylene is an important determinant of the quality and shelf life of fresh fruit and vegetables. Ethylene blocking action and ethylene removal via potassium permanganate, photocatalytic oxidation and ozonation have been extensively researched and applied on a commercial scale to manage the impacts of ethylene postharvest. However, these techniques have certain inherent limitations that make them ineffective for long-term postharvest applications. This review therefore focuses on ethylene removal strategies during postharvest handling, and characterisation of the merits and demerits of such strategies. In addition, it provides an overview of emerging techniques such as photolysis, photocatalytic oxidation and ozone-assisted catalytic oxidation, as alternatives for ethylene management along the postharvest value chains. The intent of this review was to guide the development of more effective ethylene management technologies for long-term application in the South African fruit industry.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"347 - 360"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44689602","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

Effect of soil type on spatial distribution and nutritive value of grass species growing in selected rangelands of South Africa 土壤类型对南非草地牧草空间分布和营养价值的影响

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1933630

K. Ravhuhali, V. Mlambo, T. S. Beyene, L. Palamuleni

{"title":"Effect of soil type on spatial distribution and nutritive value of grass species growing in selected rangelands of South Africa","authors":"K. Ravhuhali, V. Mlambo, T. S. Beyene, L. Palamuleni","doi":"10.1080/02571862.2021.1933630","DOIUrl":"https://doi.org/10.1080/02571862.2021.1933630","url":null,"abstract":"The distribution and status of grass species is essential for sustainable management of rangelands. Therefore, this study assessed the spatial distribution and nutritive value of grass species as influenced by soil type in selected rangelands of the North West province of South Africa. Grass species were harvested from four communal areas (clay loam and red brown sand soil types) using three transects per study area. Each transect was sub-divided into near (0.5–0.7 km), middle (0.70–1.4 km) and far sub-transects (1.4–2.2 km) based on distance from homesteads. Within each sub-transect, 10 m × 10 m homogeneous vegetation units (HVU) were marked and quadrats (1 m2) were randomly placed within each HVU to sample soil and grasses. Species composition, abundance, biomass and nutritive value of grass species were measured. Only 21% of grasses identified in the study areas were determined to be of high grazing value. Aristida species were more common and dominant in both soil types. Eragrostis cylindriflora 2 Hochst. had higher crude protein content and the highest in vitro ruminal dry matter degradability after 24 and 48 hours. Thus, E. cylindriflora was the most valuable grass species for livestock farming in the study areas and could be earmarked for rangeland restoration.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"361 - 371"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43644014","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

Response of soil carbon fractions in a Haplic Cambisol to crop rotation systems and residue management practices under no tillage in the Eastern Cape, South Africa 南非东开普省Haplic Cambisol土壤碳组分对免耕轮作制度和秸秆管理措施的响应

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1938261

I. Gura, P. Mnkeni, C. du Preez, J. Barnard

{"title":"Response of soil carbon fractions in a Haplic Cambisol to crop rotation systems and residue management practices under no tillage in the Eastern Cape, South Africa","authors":"I. Gura, P. Mnkeni, C. du Preez, J. Barnard","doi":"10.1080/02571862.2021.1938261","DOIUrl":"https://doi.org/10.1080/02571862.2021.1938261","url":null,"abstract":"Soil organic carbon (SOC) is a major indicator of soil quality and/or health but its slow short-term response to management changes has prompted the search for more sensitive indicators for monitoring short-term changes in soil organic matter (SOM). This study aimed to investigate the short-term effects of crop rotation systems and residue management practices under no tillage on selected soil carbon fractions of a Haplic Cambisol, using plots from a conservation agriculture (CA) field trial (split plot design replicated in three blocks). The main plots were comprised of the crop rotation systems: maize-fallow-maize (MFM), maize-fallow-soybean (MFS), maize-wheat-maize (MWM) and maize-wheat-soybean (MWS). Residue management practices that included residue removal (R−) and residue retention (R+) were allocated to the sub-plots. The carbon fractions measured were SOC, microbial biomass carbon (MBC), mineralisable carbon (Cmin) and particulate organic matter carbon fractions (POM-C). Crop rotation systems significantly (p < 0.05) influenced Cmin and POM-C fractions whereas residue management practices significantly (p < 0.05) affected all the carbon fractions. Crop residue retention as opposed to its removal enhanced all the carbon pools. The POM-C and Cmin fractions were more sensitive to short-term CA management interventions than SOC and MBC, therefore they can be used for monitoring SOM changes and microbial activities.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"372 - 380"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42794127","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

Cover crop performance in an apple orchard and its effect on the macro-elements and carbon levels in a loamy sand 苹果园覆盖作物性能及其对壤土土壤中宏观元素和碳含量的影响

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South African Journal of Plant and Soil Pub Date : 2021-10-20 DOI: 10.1080/02571862.2021.1966108

J. Fourie, C. Howell, M. Booyse, Kim M Adams

{"title":"Cover crop performance in an apple orchard and its effect on the macro-elements and carbon levels in a loamy sand","authors":"J. Fourie, C. Howell, M. Booyse, Kim M Adams","doi":"10.1080/02571862.2021.1966108","DOIUrl":"https://doi.org/10.1080/02571862.2021.1966108","url":null,"abstract":"Five treatments were applied in a newly established orchard on a loamy sand near Vyeboom, South Africa. Treatment 1 (T1): chemical control in the tree row from bud break to harvest, with dwarf fescue (Festuca arundinaceae Schreb.) slashed regularly in the work row. Treatment 2 (T2): ‘Saia’ oats (Avena strigosa Schreb. ‘Saia’) in the work row, with full surface chemical control (CC) applied early October and the beginning of December. Treatment 3 (T3): pink serradella (Ornithopus sativus Brot. ‘Emena’) in the work row and a subterranean clover (Trifolium subterraneum L. ‘Campeda’) in the tree row and CC. Treatment 4 (T4): a mixture of ‘Saia’ oats and pink serradella in the work row and CC. Treatment 5 (T5): a mixture of canola (Brassica napus L. ‘AVGarnet’) and ‘Caliente 199’ brown-mustard (Brassica juncea (L.) Czern. ‘Caliente 199’) in the work row and CC. T2 was the best performing treatment for the control of the winter and early summer growing weeds, while T1 controlled the late summer growing weeds the most effectively. T4 caused the highest increase in soil organic carbon, while T3 achieved the highest release of total inorganic N during the growing season (November to January).","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"398 - 406"},"PeriodicalIF":0.9,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43241877","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

Comparison of seed germination and vigour in low and high phytic acid maize synthetic populations and commercially available hybrids 低、高植酸玉米合成群体和市售杂交种种子萌发和活力的比较

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South African Journal of Plant and Soil Pub Date : 2021-08-08 DOI: 10.1080/02571862.2021.1907465

Mohammed A Elgorashi Bakhite, N. Sithole, L. S. Magwaza, A. Odindo, J. Derera

{"title":"Comparison of seed germination and vigour in low and high phytic acid maize synthetic populations and commercially available hybrids","authors":"Mohammed A Elgorashi Bakhite, N. Sithole, L. S. Magwaza, A. Odindo, J. Derera","doi":"10.1080/02571862.2021.1907465","DOIUrl":"https://doi.org/10.1080/02571862.2021.1907465","url":null,"abstract":"Plant breeders have focused on reducing phytic acid in maize seeds to improve grain nutritional quality. However, this could have negative effects on seed quality. The objective of this study was to compare seed performance of low and high phytic acid (LPA and HPA) synthetic populations of tropical origin with two hybrid varieties (SC701 and LS8520). Four replicates of 20 seeds per variety were germinated in a randomized complete block design for a standard germination test. Seeds were also subjected to an accelerated ageing (AA) test. The results of the final seed germination percentage were as follows: HPA (98.0%) > SC701 (93.0%) > LPA (90.0%) > LS8520 (85.0%). However, statistically, HPA seeds were similar (p > 0.05) to SC701 seeds and LPA seeds were similar (p > 0.05) to SC701 seeds. The mean germination time (MGT) was similar for all varieties, however, the germination velocity index (GVI) was highest (p < 0.05) for SC701 and similar (p > 0.05) in LPA and HPA. Both SC701 and HPA showed higher percentages germination when they were exposed to the AA test. It was concluded that the LPA population had similar seed quality parameters to high performing varieties.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"285 - 293"},"PeriodicalIF":0.9,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48119687","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

Increased resolution of soils information through morphon segmentation of the Korentepoort mountain catchment 通过对Korentepoort山地集水区的形态分割提高土壤信息的分辨率

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South African Journal of Plant and Soil Pub Date : 2021-08-08 DOI: 10.1080/02571862.2021.1909155

GJ Malan, WP De Clercq, Andrei Rozanov, C. Clarke, H. Helness, S. Damman, N. Elema, J. Atkinson

{"title":"Increased resolution of soils information through morphon segmentation of the Korentepoort mountain catchment","authors":"GJ Malan, WP De Clercq, Andrei Rozanov, C. Clarke, H. Helness, S. Damman, N. Elema, J. Atkinson","doi":"10.1080/02571862.2021.1909155","DOIUrl":"https://doi.org/10.1080/02571862.2021.1909155","url":null,"abstract":"Recent climate instability necessitates a fresh approach to water cycle services in the Hessequa municipal region. Attention is drawn to impacts on water storage in this region, and an assessment of the current status is necessary. Land-use change and soil properties are focal points of a runoff assessment. Defining Land Type soils information is necessary to support agricultural needs, concentrating on depth-limiting materials, mechanical limitations and texture. It is evident in the area under study that mountainous regions are not well-described. With most dams located in mountain regions and the land increasingly being used for agroforestry, the demand for better supporting information has increased. Furthermore, the available Land Type polygons for the region are too coarse for the catchment, which is primarily undulated. Enhanced Land Type mapping resolution may be defined through terrain morphological segmentation. The process indicates that the terrain prediction capability is acceptable, with 62% and 74% within 4 and 15 m search windows, respectively. This information has provided a broader platform to enhance our ability to deal with the impacts of climate and land-use change in the Korentepoort mountain catchment.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"294 - 303"},"PeriodicalIF":0.9,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44103076","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

Pigeonpea production constraints and farmers’ trait preferences in Malawi: implications for variety design 马拉维鸽豆生产限制和农民性状偏好:对品种设计的影响

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South African Journal of Plant and Soil Pub Date : 2021-08-08 DOI: 10.1080/02571862.2021.1925760

Esnart Nyirenda Yohane, H. Shimelis, M. Laing, A. Shayanowako, I. Mathew, Justus M Chintu

{"title":"Pigeonpea production constraints and farmers’ trait preferences in Malawi: implications for variety design","authors":"Esnart Nyirenda Yohane, H. Shimelis, M. Laing, A. Shayanowako, I. Mathew, Justus M Chintu","doi":"10.1080/02571862.2021.1925760","DOIUrl":"https://doi.org/10.1080/02571862.2021.1925760","url":null,"abstract":"Pigeonpea Cajanus cajan (L.) Millsp. is the most important legume cash crop grown in Malawi. However, productivity is low due to biotic and abiotic stresses and socioeconomic constraints. The objectives of this study were to determine farmers’ perceived constraints to pigeonpea production and to identify the varieties and traits preferred by farmers in Malawi. A participatory rural appraisal was conducted in four major pigeonpea growing districts (viz. Chiradzulu, Mulanje, Thyolo and Zomba) in Malawi. Data were collected using a semi-structured questionnaire, focus group discussions and transect walks. ‘Mthawajuni’ was the most preferred variety grown by 45% of the respondents, due to its palatability and resistance to pod borers. The farmers identified insects, diseases, late-maturing varieties and small land holdings as the most important constraints to pigeonpea production in Malawi. Short cooking time, palatability, high yield, early maturity, long shelf-life, pest and disease resistance, large seeds and cream colour were the most preferred traits of the pigeonpea. The constraints experienced by farmers and their preferences for the identified traits should be considered as selection criteria during the breeding of new pigeonpea varieties in Malawi.","PeriodicalId":21920,"journal":{"name":"South African Journal of Plant and Soil","volume":"38 1","pages":"326 - 337"},"PeriodicalIF":0.9,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48939716","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