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Characterization and inheritance of dwarfing genes of pigeonpea

OAR@ICRISAT

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Relation http://oar.icrisat.org/4014/
 
Title Characterization and inheritance of dwarfing genes of pigeonpea
 
Creator Saxena, K B
Singh, L
 
Subject Pigeonpea
 
Description Pigeonpea [Cajanus cajan (L.) Millsp.] cultivars have excessive vegetative growth and are not amenable to efficient crop management practices such as foliar insecticide application and mechanized field production. This study was conducted at the ICRISAT Center in India to characterize three easily distinguishable dwarf pigeonpea phenotypes (D6, PD1, and PBNA) with respect to some morphological traits and to study the inheritance patterns for dwarfing genes. Six crosses involving the dwarf lines and tall cultivars were studied. In 1986, the parents, F1, and F2 generations were grown and in the following year, testcrosses and F3 progenies were evaluated along with their respective parents. Each population was phenotypically classified relative to parental type as tall or dwarf. The chi-square analyses showed that the dwarf phenotype in each of the three lines was controlled by a single recessive gene in homozygous state. The D6 and PD1 lines had similar alleles (t3t3) whereas PBNA had a different allele (t3t3) for dwarfness, which was recessive to the D6 PD1/PD1 allele, thus constituting a multiple allelic series.
 
Publisher Crop Science Society of America
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4014/1/Characterization_and_inheritance_of_dwarfing_genes_of_pigeonpea.pdf
Saxena, K B and Singh, L (1989) Characterization and inheritance of dwarfing genes of pigeonpea. Crop Science, 29 (5). pp. 1199-1202. ISSN 0011-183X