Indian Society of Genetics & Plant Breeding

Important

INHERITANCE OF DWARF CHARACTER IN RICE AND ITS INTERRELATIONSHIP WITH THE OCCURRENCE OF ANTHOCYANIN PIGMENT IN VARIOUS PLANT PARTS

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DWARFS in rice arise as mutations either spontaneous or artificially induced through
X-ray, etc. Their occurrence as spontaneous mutations has been reported by Kadam
(1932), Ramiah (1934), Piacco (1939), Dixit (1942) and Jodon and Beachell (1943),
while that through X-ray treatment has been reported by Ramiah and Parthasarathy
(1938). J odon and Beachell (1943) described four types of dwarfs and variously named
them as
Thickset dwarf, Intermediate dwarf, Grassy dwarf, and Double dwarf on the basis
of their plant height and other leaf and panicle characters. The
Grassy dwarf was
characterised by a large number of slender tillers, many of them failing to produce
panicles. Nagao (1951) reviewing the Japanese work on rice dwarfs has also described
four types of dwarfs, called in Japanese as
Bunketsu-waitu, Ebisu dwarf, Daikokeu dwarf
and
Kodaikoku dwarf, which appear to be more or less identical with the four types of
dwarfs described by Jodon and Beachell (1943).
  

Info

Year: 1959
Volume: 59
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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