Sorghum Diseases in India

ply that has signigicant financial implications.
Manure (cattle, sheep, goat) would not be considered
as input under this situation if the animals
referred to are housed on the farm and
their manure is applied to the land by the
farmer.
Anahosur: You mentioned about integrated control
of Striga which means more than one control
measures are brought together to control Striga,
but you have not given prime importance to genotype.
Genotype is the important component
of integrated control.
Obilana: Genotypes (resistant ones) are implicated
in variety substitution or crop rotation as
used in our control-strategy proposals.
House: We are interested in getting sweet sorghum
for evaluation as a fuel source. How can
this be done?
Duncan: The Southern Regional Plant Introduction
Station at Griffin (Experiment), Georgia,
USA, 30223-1797, has the complete sweet sorghum
collection. Contact Gill Lovell, sorghum
curator, or R.R. Duncan if you desire this collection.
Include all information plus the import permit
required by your country.
Saadan: Striga asiatica is mainly found along the
coastal areas as well as the central region of the
country. S. hermonthica is found around Lake
Victoria.
Guiragossian: You mentioned that local varieties
are resistant to ergot. Could you confirm
that?
Saadan: We have not confirmed that local varieties
are resistant to ergot, however, the diseases
are more prevalent on male-sterile lines.
King: Did I understand you correctly, that grain
mold occurs on pearl millet in Tanzania?
Saadan: Yes, grain mold occurs in Tanzania in
the central region when there is rainfall after the
grain maturation. Rain is not common after
grain maturation, but there are times when these
conditions occur.
Andrews: Was honey dew also seen on genetic
male steriles (GMS) in Tanzania as well as on
cytoplasmic male steriles (CMS)?
Saadan: I have not noticed honey dew in random
mating populations. Dr Mukuru has noted
that it didn't matter whether it was GMS or
CMS—both were susceptible to ergot.
Diourte: What are the strategies for controlling
charcoal rot in Tanzania?
Saadan: We use resistant varieties. These resistant
varieties come from the ICRISAT Programs.
Claflin: What is the causal agent of bacterial
blight of finger millet in Uganda?
Adipala: Xanthomonas coracanae Desai et al. This
pathogen is very similar to some menbers of the
X. campestris group.
Adipala: Is the Pyricularia infection more severe
than the Helminthosporium infection in finger
millet? What are the causes of the seedling
blight? Could it be Pyrenophora, Pyricularia, or
Sclerotium rolfsii?
Kuwite: We have not determined which is the
most severe of the two diseases. In this instance
it seems that Helminthosporiutn is more likely to
be seedborne than Pyricularia spp. The seedling
blight was apparently caused by Helminthosporiutn
spp and Fusarium spp.
Thomas: Would you rate oval leaf spot in terms
of leaf area infected compared with sooty stripe
and leaf blight? Also, you mentioned only Fusarium
moniliforme when you talked about grain
mold. Have you noticed other fungi-infected
grains?
Chintu: Oval leaf spot, which can cause up to
25% of the tissue damaged is less important than
sooty stripe and leaf blight with 10% and 15%
tissue damage, respectively Grain mold caused
by Curvularia lunata has also been severe, but not
as common as that caused by Fusarium
moniliforme.
Thomas: I was not referring to actual data or
figures on the leaf area infected by oval leaf spot
I wanted you to rank oval leaf spot in relation to
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