Pub Date : 2019-01-23DOI: 10.5772/INTECHOPEN.75843
Leander D. Melomey, A. Danquah, Samuel K. Offei, K. Ofori, E. Danquah, M. Osei
Tomato is an important component of every Ghanaian meal, and its cultivation contributes significantly to livelihood improvement. The demand for tomato in Ghana outstrips supply, and therefore local production is augmented by imports from neighbouring countries. Despite the importance of tomato in Ghana, past tomato-breeding programmes have been unsystematic and had not led to the development of new varieties that meet the needs of consumers as well as environmental stresses. This review outlined tomato production trends, constraints and past tomato improvement programmes in Ghana, which mainly focused on germplasm collection, morphological and agronomic characterization, molecular evaluation, diversity study, as well as screening germplasm against biotic and abiotic stresses. The established variability and the outcomes of the evaluations against the various biotic and abiotic stresses have not been utilized in the development of new varieties. This work will serve as a reference for developing future tomato-breeding programmes.
{"title":"Review on Tomato (Solanum lycopersicum, L.) Improvement Programmes in Ghana","authors":"Leander D. Melomey, A. Danquah, Samuel K. Offei, K. Ofori, E. Danquah, M. Osei","doi":"10.5772/INTECHOPEN.75843","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.75843","url":null,"abstract":"Tomato is an important component of every Ghanaian meal, and its cultivation contributes significantly to livelihood improvement. The demand for tomato in Ghana outstrips supply, and therefore local production is augmented by imports from neighbouring countries. Despite the importance of tomato in Ghana, past tomato-breeding programmes have been unsystematic and had not led to the development of new varieties that meet the needs of consumers as well as environmental stresses. This review outlined tomato production trends, constraints and past tomato improvement programmes in Ghana, which mainly focused on germplasm collection, morphological and agronomic characterization, molecular evaluation, diversity study, as well as screening germplasm against biotic and abiotic stresses. The established variability and the outcomes of the evaluations against the various biotic and abiotic stresses have not been utilized in the development of new varieties. This work will serve as a reference for developing future tomato-breeding programmes.","PeriodicalId":431280,"journal":{"name":"Recent Advances in Tomato Breeding and Production","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126102480","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}
Pub Date : 2018-12-28DOI: 10.5772/INTECHOPEN.82774
S. T. Nyaku, Naalamle Amissah
Research focus currently relies on combinations of environmentally friendly approaches among which is grafting for pathogen management. Grafting has potential to provide resistance to multiple soilborne pathogens, for example, nematodes, after a susceptible plant (scion) is united with resistant rootstocks. Sources of resistant rootstocks include species from the same family or closely related species, hybrids, and weeds. This chapter focuses on the following themes: (1) grafting and cost implications, (2) rootstock selection and tomato grafting against root-knot nematodes, (3) grafting techniques and require- ments and graft union formation, (4) fruit quality of grafted plants, and (5) screening of rootstocks against root-knot nematode and identification of markers linked to Mi gene in rootstocks. Tomato rootstock breeding efforts, if coordinated properly, can lead to pro duction of rootstocks, which can be adapted to specific environments and abiotic stresses.
{"title":"Grafting: An Effective Strategy for Nematode Management in Tomato Genotypes","authors":"S. T. Nyaku, Naalamle Amissah","doi":"10.5772/INTECHOPEN.82774","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.82774","url":null,"abstract":"Research focus currently relies on combinations of environmentally friendly approaches among which is grafting for pathogen management. Grafting has potential to provide resistance to multiple soilborne pathogens, for example, nematodes, after a susceptible plant (scion) is united with resistant rootstocks. Sources of resistant rootstocks include species from the same family or closely related species, hybrids, and weeds. This chapter focuses on the following themes: (1) grafting and cost implications, (2) rootstock selection and tomato grafting against root-knot nematodes, (3) grafting techniques and require- ments and graft union formation, (4) fruit quality of grafted plants, and (5) screening of rootstocks against root-knot nematode and identification of markers linked to Mi gene in rootstocks. Tomato rootstock breeding efforts, if coordinated properly, can lead to pro duction of rootstocks, which can be adapted to specific environments and abiotic stresses.","PeriodicalId":431280,"journal":{"name":"Recent Advances in Tomato Breeding and Production","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116217229","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}
Pub Date : 2018-11-05DOI: 10.5772/INTECHOPEN.78776
I. K. Widnyana
There are microbes that are beneficial to plants. Among these, rhizobacteria, which functions as plant growth promoting rhizobacteria (PGPR) such as Pseudomonas spp. and Bacillus sp., can serve as fertilizer. These organisms have proven to accelerate germination and improve the yield of tomato plants. Colonization of rhizosphere by PGPR results in acceleration of plant growth and protection against plant pathogens. Soaking tomato seeds with Pseudomonas spp. and Bacillus sp. suspension accelerated germination by 2–3 days than the control without immersion with both bacteria. Soaking tomato seeds for 10–30 min in the suspension of Pseudomonas spp. yielded the same effect in tomato germination. Soaking in Bacillus sp. tends to cause faster growth as compared to immersion in Pseudomonas spp. suspension. Mixing these two bacterial suspensions had no significant effect in accelerating the germination of tomato seeds. Soaking tomato seeds for 20 min with a suspension of Pseudomonas spp. and Bacillus sp. at densities of 4 × 105 CFU and 8 × 105 CFU showed significant differences (p < 0.05) in plant height, leaf number, root length, number, and weight of tomato fruits. The highest fruit weight using Pseudomonas spp. and Bacillus sp. at 8 × 105 CFU was 491.7 g tomato plant−1 while the control average fruits weight was 100.0 g tomato plant−1.
{"title":"PGPR (Plant Growth Promoting Rizobacteria) Benefits in Spurring Germination, Growth and Increase the Yield of Tomato Plants","authors":"I. K. Widnyana","doi":"10.5772/INTECHOPEN.78776","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.78776","url":null,"abstract":"There are microbes that are beneficial to plants. Among these, rhizobacteria, which functions as plant growth promoting rhizobacteria (PGPR) such as Pseudomonas spp. and Bacillus sp., can serve as fertilizer. These organisms have proven to accelerate germination and improve the yield of tomato plants. Colonization of rhizosphere by PGPR results in acceleration of plant growth and protection against plant pathogens. Soaking tomato seeds with Pseudomonas spp. and Bacillus sp. suspension accelerated germination by 2–3 days than the control without immersion with both bacteria. Soaking tomato seeds for 10–30 min in the suspension of Pseudomonas spp. yielded the same effect in tomato germination. Soaking in Bacillus sp. tends to cause faster growth as compared to immersion in Pseudomonas spp. suspension. Mixing these two bacterial suspensions had no significant effect in accelerating the germination of tomato seeds. Soaking tomato seeds for 20 min with a suspension of Pseudomonas spp. and Bacillus sp. at densities of 4 × 105 CFU and 8 × 105 CFU showed significant differences (p < 0.05) in plant height, leaf number, root length, number, and weight of tomato fruits. The highest fruit weight using Pseudomonas spp. and Bacillus sp. at 8 × 105 CFU was 491.7 g tomato plant−1 while the control average fruits weight was 100.0 g tomato plant−1.","PeriodicalId":431280,"journal":{"name":"Recent Advances in Tomato Breeding and Production","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133710288","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}
Pub Date : 2018-11-05DOI: 10.5772/INTECHOPEN.76011
M. Osei, B. Annor, Joseph Adjebeng Danquah, A. Danquah, E. Danquah, E. Blay, HansAdu-Dapaah
Tomato ( Solanum lycopersicum L.) is the second most important vegetable crop in the world due to its high level of nutrition particularly in vitamins and antioxidants. It is grown in several ecologies of the world due to its adaptability and ease of cultivation. Besides field conditions, tomatoes are grown in controlled environments which range from hydroponics and simple high tunnel structures to highly automated screen houses in advanced countries. However, the yield and quality of the fruits are highly influenced by the environment. This results in unpredictable performances in different growing environments in terms of quality, a phenomenon known as genotype by environment (G × E) interaction which confounds selection efficiency. Various approaches are employed by plant breeders to evaluate and address the challenges posed by genotype by environment interaction. This chapter discusses various field and controlled environments for growing tomatoes and the effect of these environments on the performance of the crop. The various types of genotype × environment interactions and their effect of the tomato plant are discussed. Finally, efforts are made to suggest ways and methods of mitigating the confounding effects of genotype × environment interaction including statistical approaches.
{"title":"Genotype × Environment Interaction: A Prerequisite for Tomato Variety Development","authors":"M. Osei, B. Annor, Joseph Adjebeng Danquah, A. Danquah, E. Danquah, E. Blay, HansAdu-Dapaah","doi":"10.5772/INTECHOPEN.76011","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.76011","url":null,"abstract":"Tomato ( Solanum lycopersicum L.) is the second most important vegetable crop in the world due to its high level of nutrition particularly in vitamins and antioxidants. It is grown in several ecologies of the world due to its adaptability and ease of cultivation. Besides field conditions, tomatoes are grown in controlled environments which range from hydroponics and simple high tunnel structures to highly automated screen houses in advanced countries. However, the yield and quality of the fruits are highly influenced by the environment. This results in unpredictable performances in different growing environments in terms of quality, a phenomenon known as genotype by environment (G × E) interaction which confounds selection efficiency. Various approaches are employed by plant breeders to evaluate and address the challenges posed by genotype by environment interaction. This chapter discusses various field and controlled environments for growing tomatoes and the effect of these environments on the performance of the crop. The various types of genotype × environment interactions and their effect of the tomato plant are discussed. Finally, efforts are made to suggest ways and methods of mitigating the confounding effects of genotype × environment interaction including statistical approaches.","PeriodicalId":431280,"journal":{"name":"Recent Advances in Tomato Breeding and Production","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128631976","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}
Pub Date : 2018-11-05DOI: 10.5772/INTECHOPEN.76007
M. Osei, R. Prempeh, Joseph Adjebeng Danquah, J. Opoku, A. Danquah, E. Danquah, E. Blay, HansAdu-Dapaah
Marker-assisted selection (MAS) is a complementary tool for conventional breeding where a molecular marker linked to a trait is indirectly selected. Many studies conducted have been able to identify and develop markers for traits such as disease and pest resistance and other abiotic stresses. Despite the availability of these markers, the technology has been extensively used in tomato breeding for the identification of some economic traits in particular disease resistance. In developed countries, MAS is utilized routinely in breeding programs, but this cannot be said for developing countries such as Africa. It is high time Africa as a continent looks at the importance of the technology and invests in it. In addition to MAS, other strategies such as marker-assisted backcrossing and recurrent selection have also been employed for breeding in tomato. The use of MAS in crop improvement will not only reduce the cost of developing new tomato varieties but will also increase the precision and efficiency of selection in the breeding program as well as lessen the number of years required to come up with a new crop variety.
{"title":"Marker-Assisted Selection (MAS): A Fast-Track Tool in Tomato Breeding","authors":"M. Osei, R. Prempeh, Joseph Adjebeng Danquah, J. Opoku, A. Danquah, E. Danquah, E. Blay, HansAdu-Dapaah","doi":"10.5772/INTECHOPEN.76007","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.76007","url":null,"abstract":"Marker-assisted selection (MAS) is a complementary tool for conventional breeding where a molecular marker linked to a trait is indirectly selected. Many studies conducted have been able to identify and develop markers for traits such as disease and pest resistance and other abiotic stresses. Despite the availability of these markers, the technology has been extensively used in tomato breeding for the identification of some economic traits in particular disease resistance. In developed countries, MAS is utilized routinely in breeding programs, but this cannot be said for developing countries such as Africa. It is high time Africa as a continent looks at the importance of the technology and invests in it. In addition to MAS, other strategies such as marker-assisted backcrossing and recurrent selection have also been employed for breeding in tomato. The use of MAS in crop improvement will not only reduce the cost of developing new tomato varieties but will also increase the precision and efficiency of selection in the breeding program as well as lessen the number of years required to come up with a new crop variety.","PeriodicalId":431280,"journal":{"name":"Recent Advances in Tomato Breeding and Production","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127365050","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}
Pub Date : 2018-04-06DOI: 10.5772/INTECHOPEN.75978
A. R. Zeist, Alex Antonio da Silva, J. deResende, W. Maluf, André Gabriel, D. Zanin, E. Guerra
The tomato is susceptible to pest attacks that can lead to damages throughout the crop cycle. Pest control is carried out, mainly, by insecticide and chemical acaricide spraying. However, the use of chemical pest control can cause severe damage to the environment, biological imbalances and deleterious effects on farmers and consumer health, as well as increased production costs. An interesting alternative to minimizing the problems arising from the agrochemical application and maintaining pest populations below the economic damage level is the development of tomato plants displaying resistance to insect and arachnid pests. In this context, the main purpose of this chapter is to provide a review of the techniques applied in this regard, major progresses to date and future prospects for tomato pest-resistance breeding. This chapter is divided into five sections: (1) wild pestresistant tomato species, (2) allelochemicals that confer pest resistance, (3) techniques used for the introgression of pest resistance genes (4) overview, challenges and prospects for pest-resistant tomato breeding and (5) final considerations.
{"title":"Tomato Breeding for Insect-Pest Resistance","authors":"A. R. Zeist, Alex Antonio da Silva, J. deResende, W. Maluf, André Gabriel, D. Zanin, E. Guerra","doi":"10.5772/INTECHOPEN.75978","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.75978","url":null,"abstract":"The tomato is susceptible to pest attacks that can lead to damages throughout the crop cycle. Pest control is carried out, mainly, by insecticide and chemical acaricide spraying. However, the use of chemical pest control can cause severe damage to the environment, biological imbalances and deleterious effects on farmers and consumer health, as well as increased production costs. An interesting alternative to minimizing the problems arising from the agrochemical application and maintaining pest populations below the economic damage level is the development of tomato plants displaying resistance to insect and arachnid pests. In this context, the main purpose of this chapter is to provide a review of the techniques applied in this regard, major progresses to date and future prospects for tomato pest-resistance breeding. This chapter is divided into five sections: (1) wild pestresistant tomato species, (2) allelochemicals that confer pest resistance, (3) techniques used for the introgression of pest resistance genes (4) overview, challenges and prospects for pest-resistant tomato breeding and (5) final considerations.","PeriodicalId":431280,"journal":{"name":"Recent Advances in Tomato Breeding and Production","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130213285","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}
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