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SEED HEALTH STATUS OF COMMONLY USED THREE SELECTED HYBRID MAIZE VARIETIES IN BANGLADESH

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Title SEED HEALTH STATUS OF COMMONLY USED THREE SELECTED HYBRID MAIZE VARIETIES IN BANGLADESH
 
Creator JINNAH, MOHAMMAD ALI
 
Subject HYBRID MAIZE
BANGLADESH
 
Description A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in Partial fulfillment of the requirements
for the degree of


MASTER OF SCIENCE
IN
PLANT PATHOLOGY
SEMESTER: JANUARY-JUNE, 2014
Experiment was conducted to know the seed health status of three selected
hybrid maize varieties viz. Dekalb, Miracal and NK-40 during the period July-
2013 to August-2014 at the Department of Plant Pathology, Sher-e-Bangla
Agricultural University, Dhaka, Bangladesh. Seed health study was conducted
following blotter method, water agar test tube method and rolled paper towel
method. It was revealed that seeds of selected maize varieties yielded three
fungal species in blloter method. The fungi were Aspergillus flavus (7.42% in
NK-40, 5.95% in Miracal and 2.24% in Dekalb), Aspergillus niger (7.32% in
NK-40, 6.98% in Miracal and 4.22% in Dekalb) and Fusarium moniliforme
(5.75% in NK-40, 4.42% in Miracal and 3.42% in Dekalb). In seedling
symptoms test by water agar test tube method and seedling vigor index test by
rolled paper towel method, maize variety Dekalb showed good performance in
terms of minimum number of diseased seedlings (15.26%) and dead seed
(2.00%) and maximum germination (97.25%) and showed the highest vigor
index (1437) while the variety NK-40 showed poor performance regarding all
parameters used. So, most of the seed-borne pathogens reduced the germination
and produced diseased seedlings. Farmers are therefore, advised to collect the
seeds from reliable source and check their maize seed health status before
sowing in the field.
 
Date 2018-10-25T10:02:33Z
2018-10-25T10:02:33Z
2015-12
 
Type Thesis
 
Identifier http://archive.saulibrary.edu.bd:8080/xmlui/handle/123456789/49
 
Language en
 
Format application/pdf
 
Publisher Department of Plant Pathology, Sher-e-Bangla Agricultural University