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Inheritance of compact dwarf plant type in pigeonpea ( Cajanus cajan )
Author(s) -
Dhanasekar P.,
Pandey R. N.,
Dhumal K. N.
Publication year - 2007
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.2007.01427.x
Subject(s) - cajanus , biology , habit , canopy , genotype , agronomy , inheritance (genetic algorithm) , botany , horticulture , gene , genetics , psychology , psychotherapist
A compact dwarf plant type TDT2004‐1 isolated from the progeny of a cross involving Cajanus cajan (cv. ‘C‐11’) and C. cajanifolia was investigated for its inheritance. Pigeonpea genotype TDT2004‐1 is semi‐determinate in growth habit; short (approximately 37 cm) with reduced internodal length (1.2 cm), a compact canopy and a high harvest index (40%), while genotype TT44‐4 is indeterminate in growth habit; tall (132 cm) with normal internodal length (2.3 cm), an open canopy and a low harvest index (28.9%). The inheritance study involving cross TT44‐4 × TDT2004‐1 showed that the compact dwarf plant type was governed by a single recessive gene. TDT2004‐1 could be utilized for improving the harvest index and also for restructuring the plant canopy in pigeonpea.