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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/21826


Title: Determination of field yield loss and effect of environment on pod shattering in soybean
Authors: Tukamuhabwa, P.
Dashiell, K. E.
Nabasirye, M.
Rubaihayo, P.
Keywords: Genotype x environment interactions, Glycine max   , susceptible vari
Intéraction génotype et environnement, Glycine max   , variétés susceptibles
Issue Date: 31-Dec-2002
Publisher: African Crop Science Society
Citation: African Crop Science Journal (ISSN: 1021-9730) Vol 10 Num 3
Abstract: Pod shattering in soybean is a major production constraint causing high field yield losses in the tropic and sub tropics. With regard to pod shattering, soybean varieties can be categorised as tolerant, intermediate or susceptible. Six soybean lines, Nam 2, TGx 1448-2E, Duiker, Nam 1, TGm 737P and Kabanyolo 1 were grown at three locations for three seasons (1997 - 1998) to determine field seed yield losses due to pod shattering and the effect of G X E interactions on shattering. Based on the number of shattered and unshattered pods, the amount of soybean seed yield lost in the field due to pod shattering was determined. Yield losses in susceptible and intermediate susceptible varieties ranged from 57 - 175 kg ha-1 and 0 - 186 kg ha-1, respectively depending on genotype, location, season and harvesting date. The resistant varieties did not shatter even when harvested after a delayed harvesting period of 21 days. Field yield loss due to pod shattering was estimated and such estimates are considered useful for breeding programmes when selecting varieties for resistance to shattering.
URI: http://hdl.handle.net/1807/21826
Other Identifiers: http://www.bioline.org.br/abstract?id=cs02020
Rights: Copyright 2002 - African Crop Science Society
Appears in Collections:Bioline International Legacy Collection

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