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Classical Genetics, Cytogenetics and Traditional Breeding in Castor Bean

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Title Classical Genetics, Cytogenetics and Traditional Breeding in Castor Bean
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Creator C. Lavanya,
A. Vishnuvardhan Reddy
Bhramar Dutta
Rajib Bandopadhyay
 
Subject Cator, Breeding techniques, Cytogenitics
 
Description Not Available
Castor being a perennial, cross-pollinated, sexually polymorphic crop with high environmental sensitivity, initial plant breeding efforts were restricted to plant height and duration. Domestication of a wild, perennial crop to an annual crop of medium plant height and duration is the first success. Further, development of a two-line breeding system and standard seed production technology led to successful commercial exploitation of heterosis. Being a monotypic genus, diversification of parental base is restricted to intra-generic, intraspecific, or inter-varietal hybridization. Phenotypic expression is highly plastic and varies with locations and seasons. Majority of the morphological characters are monogenic, independently assorted with very limited linkages among the traits. However, information on genetics of major morphological characters is scattered in several old publications. Conventional breeding methods were successful in developing about 40 high-yielding hybrids and varieties with inbuilt resistance to major pests and diseases. An effort is made in the present chapter to consolidate the information on genetics and breeding methods followed in India and elsewhere.
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Date 2020-12-26T08:13:36Z
2020-12-26T08:13:36Z
2018-03-01
 
Type Book chapter
 
Identifier C. Kole and P. Rabinowicz (eds.), The Castor Bean Genome, Compendium of Plant Genomes, https://doi.org/10.1007/978-3-319-97280-0_3 33
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/43779
 
Language English
 
Relation Not Available;
 
Publisher Springer Nature Switzerland AG 2018