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Performance of some sorghum varieties as affected by heat stress under irrigation in Northern Nigeria

OAR@ICRISAT

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Relation http://oar.icrisat.org/10552/
 
Title Performance of some sorghum varieties as affected by heat stress under
irrigation in Northern Nigeria
 
Creator Angarawai, I I
Ajeigbe, H A
Umar, H G
Yeye, M
 
Subject Abiotic Stress
Nigeria
Sorghum
 
Description Exposure of sorghum (sorghum bicolor) during flowering time for
a period of 10-15 days to high temperature stress (>36-38oC)
reduced pollen germination, failure of fertilization and flower
abortion. A number of improved varieties of sorghum have recently
been released for the Sudan and Sahel zones of Nigeria,
with their dissemination limited by seed availability. In order to
improve the supply of Breeder and Foundation seeds for production
of certified, these varieties; SAMSORG 45 and SAMSORG
46 with two old but popular varieties SAMSORG 41 and SAMSORG
17 were grown under irrigation at Dadinkowa (10.18N,
11.27S) to assess their productivity during the dry season at
two planting dates (October and January) for 2 seasons (2015 &
2016). Result showed that October planting which flowering and
seed set coincided with the average maximum temperature of
27oC recorded in January produced good seed while December/
January planting which flowering and seed set coincided with
average maximum temperature of 42oC recorded in April had
poor or no seed set on panicles especially in 2016. Rise in the
average maximum temperature (2016) in the month of March
(350C) and April 2016 (410C) resulted to 90-100% no seed set
on SAMSORG 17, SAMSORG 45 and SAMSORG 46 as it coincided
with the flowering time thus producing sterile panicle. This
suggest that planting date and temperature significantly affect
seed production of sorghum in the dry season.
 
Date 2017
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10552/1/Performance%20of%20some%20sorghum%20varieties%20as%20affected%20by%20heat%20stress.pdf
Angarawai, I I and Ajeigbe, H A and Umar, H G and Yeye, M (2017) Performance of some sorghum varieties as affected by heat stress under irrigation in Northern Nigeria. In: Inter Drought- V, February 21-25, 2017, Hyderabad, India.