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Radiation induced mutations for breeding of sorghum

Abstract

Several sorghum cultivars of Mali were irradiated with different doses of gamma rays and compared with the Caudatum types. Radio-sensitivity studies suggested that the local types were less sensitive to radiation than the introduced types. Whereas the local varieties survived dose of 300 Gy, in Caudatum types, seed germination and growth were significantly reduced at 200 Gy. Several agronomically important mutants were obtained among the progeny of the local types. Some of the mutants were shorter and had improved panicle characteristics. Radiation-induced variation was observed in several characters such as plant height, resistance to lodging, plant architecture, drought tolerance, panicle length and compactness, seed size and color, seed quality (viterous or floury) and protein content, glume color and structure, flowering data (early and late maturity), and tillering capacity. One mutant was drought tolerant. Promising mutants were selected and are presently under evaluation in the National List Trials to confirm their potential and future release. Selected variants have been also crossed with local types to obtain promising material. (author). 8 refs, 2 tabs.
Authors:
Bretaudeau, A [1] 
  1. Rural Polytechnic Inst., Katibougou, Koulikoro (Mali)
Publication Date:
Jul 01, 1997
Product Type:
Conference
Report Number:
IAEA-TECDOC-951; CONF-9510444-
Reference Number:
SCA: 553002; PA: AIX-28:054943; EDB-97:113813; SN: 97001834287
Resource Relation:
Conference: Final research coordination meeting on improvement of basic food crops ion Africa through plant breeding, including the use of induced mutations, Naples (Italy), 30 Oct 1995; Other Information: PBD: Jul 1997; Related Information: Is Part Of Improvement of basic food crops in Africa through plant breeding, including the use of induced mutations. Proceedings of a final research co-ordination meeting; PB: 145 p.
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; SORGHUM; RADIATION INDUCED MUTANTS; DROUGHT RESISTANCE; IRRADIATION; MUTAGENESIS; NUTRIENTS; PLANT BREEDING; PLANT GROWTH; PRODUCTIVITY; PROGENY; PROTEINS; RADIATION DOSES; SEEDS
OSTI ID:
511784
Research Organizations:
Joint FAO/IAEA Div. of Nuclear Techniques in Food and Agriculture, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE97637601; TRN: XA9744548054943
Availability:
INIS; OSTI as DE97637601
Submitting Site:
INIS
Size:
pp. 25-29
Announcement Date:

Citation Formats

Bretaudeau, A. Radiation induced mutations for breeding of sorghum. IAEA: N. p., 1997. Web.
Bretaudeau, A. Radiation induced mutations for breeding of sorghum. IAEA.
Bretaudeau, A. 1997. "Radiation induced mutations for breeding of sorghum." IAEA.
@misc{etde_511784,
title = {Radiation induced mutations for breeding of sorghum}
author = {Bretaudeau, A}
abstractNote = {Several sorghum cultivars of Mali were irradiated with different doses of gamma rays and compared with the Caudatum types. Radio-sensitivity studies suggested that the local types were less sensitive to radiation than the introduced types. Whereas the local varieties survived dose of 300 Gy, in Caudatum types, seed germination and growth were significantly reduced at 200 Gy. Several agronomically important mutants were obtained among the progeny of the local types. Some of the mutants were shorter and had improved panicle characteristics. Radiation-induced variation was observed in several characters such as plant height, resistance to lodging, plant architecture, drought tolerance, panicle length and compactness, seed size and color, seed quality (viterous or floury) and protein content, glume color and structure, flowering data (early and late maturity), and tillering capacity. One mutant was drought tolerant. Promising mutants were selected and are presently under evaluation in the National List Trials to confirm their potential and future release. Selected variants have been also crossed with local types to obtain promising material. (author). 8 refs, 2 tabs.}
place = {IAEA}
year = {1997}
month = {Jul}
}