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DEVELOPMENT OF FISH FLESH POWDER AND POWDER-BASED COOKIES AND SNACKS FROM PANGUS, SILVER CARP, TILAPIA AND TUNA FISH (PATENT NO: IPC: A23L 17/00, 1006455, 19/2020)
Abstract
Generally, the cookies and snacks available in the market are made of flour,
leavener, salt, sugar, butter, egg, oil and some other extra added flavor in some
special case. White, processed flour and more starch in the regular diet increase
blood sugar, which in turn puts unnecessary stress on the liver. Fish consumption
helps to reduce coronary heart disease incidence and mortality due to having
beneficial effects omega-3 PUFA, EPA & DHA. Increased protein intake also
balances blood sugar and insulin, reducing cravings and detoxing the liver.
Therefore, fish protein-based food is relatively nutritious and safer than
carbohydrates for human body. A method was developed for producing powder
from fish having protein content ranged between 80-90% (dry basis). Then, the
value-added fish cookies and snacks (viz. biscuit, chanachur & chips) were made
from fish powder containing 30-40% protein. Major portion of fats were removed
from fish flesh which protects the products from fat oxidation. Bacterial
population of the developed products were found ranged between 1.3x l 03 to
2.4x 103 CFU/gm. The present invention reveals that if we can add the fish protein
to produce the cookies and snacks like biscuits, chanachur and chips it would be
safer for health with helping in balancing blood sugar and detoxing the liver.
Keywords: fish flesh powder, cookies, nutritious, low-cost, value additio
MANAGEMENT OF MAJOR INSECT PESTS OF GROUNDNUT USING BOTANICALS AND SOME SELECTED CHEMICAL INSECTICIDES
A Thesis
Submitted to the Institute of Seed Technology,
Sher-e-Bangla Agricultural University, Dhaka,
In Partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SEED TECHNOLOGYA field experiment was conducted to study the management of major insect pests of
groundnut using botanicals and some selected chemical insecticides. BARI Chinabadam8
was used as the test crop for the experiment. Seven treatments were applied viz. T
1
(Imidacloprid 70FS @ 5 ml/kg), T
2
ii
(Acephate 75SP @ 0.05%), T
3
(Fipronil 5SC @
0.01%), T
4
(Thiamethoxam 25WG @0.4 ml/L at 30 DAS), T
5
(Neem seed kernel extract
@ 5% at 30 DAS), T
6
(Azadirachtin @ 2 ml/L at 30 DAS) and T
7
= Neem leaf extract @
2.5%. Major insect pests namely aphid, whitefly and thrips were found in the study field.
Treatment T
5
(Neem seed kernel extract @ 5% at 30 DAS) showed best performance in
reducing aphid and whitefly population and also their infestation whereas T
7
(Neem leaf
extract @ 2.5%) showed best performance in reducing thrips. Highest healthy shoot and
lowest percent of infestation was also recorded from the treatment T
5
(Neem seed kernel
extract @ 5% at 30 DAS) followed by T
7
(Neem leaf extract @ 2.5%) whereas least
performance was observed from the treatment T
3
(Fipronil 5SC @ 0.01%). Treatment T
5
(Neem seed kernel extract @ 5% at 30 DAS) also showed the best results on growth,
yield and yield contributing characteristics viz. maximum plant height (45.27 cm),
number of branches plant
-1
(9.63), number of pods plant
-1
(18.75), number of seeds pod
(1.72), 100 seed weight (49.24 g), pod yield plot
-1
(1.37 kg) and pod yield ha
(2.37 t)
whereas the lowest pod yield ha
-1
(1.97 t) was obtained from the treatment T
3
(Fipronil
5SC @ 0.01%). In case of quality of seeds after harvest, T
5
(Neem seed kernel extract @
5% at 30 DAS) treated plot gave best performance and showed maximum seed
germination (92.40%), shoot length (7.14 cm), root length (6.72 cm) and seed vigour
index (1281.00) whereas T
3
(Fipronil 5SC @ 0.01%) showed least performance. So, it
can be concluded that among all the treatments, T
5
(Neem seed kernel extract @ 5% at 30
DAS) was best for controlling insect pest of groundnut which resulted maximum yield
and seed quality followed by the treatment T
7
-1
(Neem leaf extract @ 2.5%) whereas T
3
(Fipronil 5SC @ 0.01%) treatment showed lowest performance
EFFECT OF DIFFERENT CHEMICAL FERTILIZERS AND MANURES ON THE GROWTH AND YIELD OF TOMATO
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
SOIL SCIENCEAn experiment was conducted at the experimental field of Sher-e-Bangla Agricultural
University during the period from October 2021 to March 2022 for assessing the effect of
different organic and chemical fertilizers on the growth and yield of tomato. The experiment
consisting of single factor with eight treatments viz. T
1
= Control, T
2
= Recommended dose of
nutrients, T
3
= 70% nutrients from fertilizer + 30% nutrients from cowdung, T
4
= 50% nutrients
from fertilizer + 50% nutrients from cowdung, T
5
= 70% nutrients from fertilizer + 30%
nutrients from compost, T
6
= 50% nutrients from fertilizer + 50% nutrients from compost, T
7
=
100% nutrients from cowdung (21 t ha
-1
) and T
8
= 100% nutrients from compost (16 t ha
).
Seeds of tomato cv. ‘BARI Tomato-4’ were used in the experiment. This experiment was laid
out in a randomized complete block design (RCBD) with three (3) replications. Data were
collected on different aspects of growth, yield attributes, yield and harvest index of tomato
including soil properties and nutrient contents. At all 30, 60 and 90 DAT, the longest (49.40,
73.70 and 107.5 cm) plant was recorded from T
5
(70% nutrient from fertilizer + 30% nutrient
from compost). The highest (21.24) number of fruits per plant was recorded from T
6
(50%
nutrient from fertilizer + 50% nutrient from compost), while the lowest (13.20) number of fruits
per plant was recorded from T
1
(Control) treatment. The longest (6.60 cm) fruit length was
recorded from T
6
(50% nutrient from fertilizer + 50% nutrient from compost), while the shortest
(5.22 cm) fruit length was recorded from T
1
(Control) treatment. The longest (12.40 cm) fruit
diameter was recorded from T
6
(50% nutrient from fertilizer + 50% nutrient from compost),
while the shortest (9.72 cm) fruit diameter was recorded from T
1
(Control) treatment. The
highest (38.60 g) fruit weight was recorded from T
6
(50% nutrient from fertilizer + 50% nutrient
from compost), while the lowest (33.20 g) fruit weight was recorded from T
1
(Control)
treatment. The highest (16.52 kg plot
-1
) fruit yield was recorded from T
6
(50% nutrient from
fertilizer + 50% nutrient from compost). The highest levels of organic carbon (0.55 %) and
available soil phosphorus concentration (23.27 ppm) in post-harvest soil were recorded in T
6
(50% nutrient from fertilizer + 50% nutrient from compost) treatment. The highest (1.34
meq/100g soil) potassium was recorded from the same T
6
(50% nutrient from fertilizer + 50%
nutrient from compost) treatment. From the result, it can be said that higher amount of organic
manure along with traditional chemical fertilizer improved soil organic carbon and increased
availability of essential plant nutrients in soil solution. So, T
6
: 50% nutrient from fertilizer +
50% nutrient from compost application seemed promising for higher fruit yield of tomato and
maintaining soil productivity and fertility
STOCK ASSESSMENT OF COMMERCIALLY IMPORTANT FISHES IN THE BAY OF BENGAL THROUGH MOLECULAR MARKERS: MANAGEMENT POLICY IMPLICATIONS
Abstract
of Fish eries, University of Rajshahi, Rajshahi, Bangladesh
Stock (population) identification is very crucial both in the context of monitoring
and conservation of the fish species of marine and open water habitats. The
present research was conducted accordingly in the BoB aiming to determine and
categorize the population of some commercially important marine fish species. In
this study, about one hundred samples of each species of ten marine fishes
namely, Pampus chinensis, Pampus argenteus, Euthynnus affinis, Auxis thazard,
Megalaspis cordyla, Lates calcarifer, Setipinna tenuifilis, Sillaginopsis panijus,
Polynemus paradiseus and Coilia dussumieri were collected between October
2020 and April 2022 mainly from coast and rivers of two ecological regions of
Bangladesh coast: the South - west (Borguna-Khulna-Patuakhali, KP) coastal
zone and the South - east (Chattograrn-Cox 's Bazar, CC) coastal zone based on
different physico-chemical characteristics of habitat (KP: high brackish water area
with dense clayed particle in river and estuaries; CC: sandy area with more clear
saline water river and estuaries) and biology of species (e.g. migratory,
amphidromous, anadromous etc.). For amphidromous or anadromous fish,
samples were collected from coastal rivers. Fish/tissue samples or DNA sequence
data of other seas in the Indian Ocean region (e.g. Southern BoB, Andaman Sea,
Arabian Sea, Persian Gulf etc.) and South-west Pacific (e.g. South China Sea,
Gulf of Thailand etc.) were collected from different researchers and scientific
studies. For genetic diversity and stock study, sequence variations in different
mitochondrial DNA gene regions such as COI, Cytb, and noncoding control
region (d-loop) were examined Polymerase Chain Reaction (PCR) was used to
amplify the target mtDNA region and sequenced by sequence analyzer. Lastly,
the variation in the obtained DNA sequence data of different geographic locations
were analyzed using different bioinformatic softwares such as Geneous,
ARLEQUIN, MEGA-6; TCS etc. For all the genes in every sampling locations of
Bangladesh, the nucleotide diversities (zr) were very low (0.000 I ~ 0.05) but the
haplotype or gene diversities (h) were relatively high, 0.5 ~ 1.0 (i.e. h>O.5)
indicates that the studied fishes have experience population expansion after a
period of low effective population size, except two species, M. cordyla and L.
calcarifer for which the gene diversities were also low (0.14 ~ 0.263). This result implies that these two fish species of Bangladesh have experienced recent
bottleneck. Immediate conservation measures should be immediately taken for
these two species, such as limiting catch, banning on fishing season, making long
term sanctuary or protected area etc. Neutrality tests such as Tajima's D and Fu's
Fs statistics also suggested that most of the studied fish species of Bangladesh
populations have undergone the demographic history of population expansion.
Interestingly, the population statistic FST, and exact test of population
differentiation revealed two different scenarios for two group of fishes. The first
group contains six fish species namely P. chinensis, P. argenteus, E. affinis, A.
thazard, M cordyla, L. calcarifer. Fishes of this group have similar
characteristics. These fishes are mostly oceandromous, pelagic and highly
migratory. They are widely distributed throughout the Indian Ocean and SouthWest
Pacific (or, Indo-west Pacific). These fish showed no significant population
genetic structuring indicating that these six species have single genetic stock and
these are panmictic (random mating among populations) throughout Bangladeshi
marine water. Bangladesh should manage these species as a single conservation
unit. Further, these six migratory fish showed its own genetic structure (FST P
:S0.05) within the BoB when compared with other neighboring seas such as
Arabian Sea, Andaman Sea, Gulf of Thailand, South China Sea etc. So, the BoB
countries should manage and conserve these vital and shared marine species
through cooperation with each other. On the other hand, the second group consists
of four species S. tenuifilis, S. panijus, P. paradiseus and C. dussumieri is
relatively distributed to the narrow or localized geographic area mostly in the BoB
and Andaman Sea. These fishes are mostly off-shore or coast dwelling and
amphidromous (i.e. migrate between fresh and marine water but not to breeding
purpose). For these species, pairwise FST values of mtDNA markers among fish
samples of different sampling rivers showed significant differences (P :S0.05) in
most of the cases. Different rivers showed their own genetic stock for different
fish such as Bishkhali, Kirtankhola and Boleshwar river for P. paradeseus and S.
panjius; Naf and Pashur river for C. dussumieri; Matamuhuri and Bishkhali river
for S. tenuifilis etc. Based on this result, it is recommended that different river
populations of studied fish having unique genetic structures (i.e. genetic stock)
require separate monitoring and management strategies for conservation because
the population of each river is genetically distinct and overfishing in any of the
rivers may cause extinction of its fish stock. So, it is needed to maintain good
water flow and direction such as by regular dredging and also needed to control
water pollution for the good ecosystem to safeguard these fish species.
Keywords: BoB, population, stock status, molecular marker, fisheries management
PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF INDIGENOUS AND CROSSBRED COWS BRED ARTIFICIALLY IN GOBINDAGANJ UPAZILA OF GAIBANDHA DISTRICT
A Thesis
Submitted to the Department of Animal Nutrition, Genetics and Breeding
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE (MS)
IN
ANIMAL BREEDING AND GENETICSThe aim of the study was to evaluate the productive and reproductive performances of
crossbred and indigenous cows through artificial insemination. The study was
conducted at farmer’s level in different areas in Gobindaganj upazila of Gaibandha
district from January 2021 to December 2021. Based on the goal of the study, a total
of 100 dairy cows were examined across three genotypes. According to their genetic
composition selected genotypes were Friesian cross (F×I=45), Sahiwal cross
(SL×I=35) and Indigenous (I=20). The three breeds differ significantly in terms of
reproductive traits. The results showed that shortest age at puberty (20.77±0.10
month), age at first service (22.65±0.22 month), age at first calving (31.95±0.30
month), gestation period (278.44±0.97 days) and calving interval (404.20±2.31 days)
in Friesian cross. On the contrary longest age at puberty, age at first service, age at
first calving, gestation period and calving interval were 25.58±0.11 month,
27.08±0.11 month, 37.01±0.34 month, 284.30±1.08 and 453.30±2.91 days found in
indigenous cow, respectively. There is no significant effect of service per conception
between indigenous and crossbred cows. Where indigenous cows need minimum
(1.20±0.09) services per conception though Sahiwal cross required for maximum
(1.56±0.13) service per conception. Regarding productive attributes, significant
variations between indigenous and crossbred cows were identified. It was observed
that highest birth weight, milk yield per day and lactation length were 25.08±0.58 kg,
13.44±.54 liter and 287.72±2.52 days, respectively found in Friesian cross. On the
other side lowest birth weight, milk yield per day and lactation length were
13.55±0.98 kg, 2.30±0.12 liter and 229.3±2.52 days, respectively observed in
indigenous. It was revealed that the Friesian cross is superior in relation to milk
production and lactation length. From the above point of view, it could be concluded
that Friesian cross cows might be suitable for profitable dairy farming compared to
other breed in this study area. However, further study with greater sample sizes
covering more different management systems would be required to describe a better
inference in this consideration
SALINITY INDUCED MORPHO-PHYSIOLOGICAL AND YIELD CHANGES IN FIELD PEA (Pisum sativum L.)
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka-1207, in partial
fulfillment of the requirements for the degree of
MASTER OF SCIENCE (MS)
IN
AGROFORESTRY AND ENVIRONMENTAL SCIENCESalinity is a major abiotic stress inducing morphological and yield changes in plant as
well as limiting production. So a pot experiment was conducted during December 2021
to March 2022 at Agroforestry farm, Sher-e-Bangla Agricultural University Sher-eBangla
Nagar,
Dhaka-1207.
It
was
done
to
evaluate
the
changes
in
morpho-physiological
and
yield
characteristics
of
three
field
pea
varieties
(BARI
motor
1,
BARI
motor
2,
BARI
motor
3) to salinity under different levels. The three salinity levels (4 dS/m, 8dS/m,
12dS/m) along with a control were inclined by irrigation of NaCl salt solution. The
experiment was placed out following two factors Complete Randomized Design with
three replications. Results indicated that in response to different salinity level, the three
genotypes showed clear differences in the changes in plant height, leaf length, number of
leaf, chlorophyll content, relative water content, salt tolerant index, number of pod,
number of seed, pod length, pod weight and 100 seed weight and yield of field peas which
were significantly decreased with the increased of salinity. Vegetative stage is being more
sensitive than flowering and pod-filling stages. The tallest plant (57.05cm), number of
leaf per plant (9.50), the highest salt tolerant index value (38.47%), relative water content
(37.69%), number of pod per plant (7.33), number of seed per pod and yield (2.23g) were
observed from BARI motor 2 at 12 dS/m. Therefore, BARI Motor 2 was the most salt
tolerant among the varieties in terms of growth and yield production
MORPHOLOGICAL AND MOLECULAR IDENTIFICATION OF MYCOFLORA ASSOCIATED WITH SELECTED SPAWN SUBSTRATES AND ITS EFFECT ON YIELD OF OYSTER MUSHROOM (Pleurotus florida)
A Thesis
Submitted to the Department of Plant Pathology,
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfillment of the requirements
or the degree of
CAUSED BY Alternaria spp.
MASTER OF SCIENCE (MS)
IN
PLANT PATHOLOGYAn experiment was conducted to identify and characterize contaminants associated
with the substrates of oyster mushrooms (Pleurotus florida) based on morphological
and molecular characteristics, to assess the degree of contamination of various oyster
mushroom substrates and to determine the effect of mycoflora on the growth and
yield-contributing traits of Pleurotus florida. Five different types of mushroom
substrates, including rice straw, sugarcane bagasse, waste paper, grass (Cynodon
dactylon) and banana leaves were used for this purpose. By morphological and
molecular analysis, three fungi were isolated and identified from mushroom
substrates. These were Exophiala spinifera, Trichoderma asperellum, and Rhizopus
sp. Among these fungal isolates, the DNA sequence of Trichoderma asperellum and
Exophiala spinifera were detected by Basic Local Alignment Search Tool (BLAST)
with the help of NCBI. DNA sequence of Exophiala spinifera and Trichoderma
asperellum were matched by 99.83% (ITS1) and 100% (ITS4)as well as 65.60%
(ITS1) and 99.50% ( ITS4) with the nucleotide sequence of NCBI gene bank,
respectively. Among the five mushroom substrates, waste paper showed the highest
mycelium growth rate (0.48 cm), while banana leaves showed the lowest growth rate
(0.41 cm). For mycelium running completion, sugarcane bagasse required the longest
period of time (15.8 days), whereas waste paper required the shortest period of time
(12.3 days). The maximum number of primordia (37.9), effective fruiting bodies
(17.5), the highest biological yield (144.2 g), economical yield (113.3g) and
biological efficiency (24.84%) per spawn packet were recorded from waste paper,
while the minimum number of primordia (30.9), effective fruiting bodies (12),
biological yield (119.7 g), economical yield (86.2 g) and biological efficiency
(23.94%) were recorded in banana leaves. The maximum pileus diameter (5.03 cm)
and stipe length (2.84 cm) were recorded from grass (Cynodon dactylon) whereas the
minimum pileus diameter (3.61 cm) and stipe length (2.26 cm) were found in banana
leaves. The maximum contamination severity was recorded in banana leaves (6.8%)
whereas waste paper had the minimum level of contamination (0.4%). Among the
selected substrates, waste paper showed the best performance in case of growth rate,
mycelium running completion, yield and yield contributing characters
IDENTIFICATION OF MULTIDRUG-RESISTANT ESCHERICHIA COLI AND SALMONELLA SPECIES ISOLATED FROM CHICKEN AND PIGEON IN SOME SELECTED AREAS OF DHAKA CITY
A Thesis
Submitted to the Faculty of Animal Science and Veterinary Medicine
Sher-e-Bangla Agricultural University Dhaka-1207,
In Partial Fulfillment of the Requirements for the degree of
MASTER OF SCIENCE (MS) IN MEDICINE
DEPARTMENT OF MEDICINE AND PUBLIC HEALTHThe poultry industry in Bangladesh is considered an important sub-sector for economic
growth and employment. Chicken and pigeon both are raised in the farm and sold in the
live bird markets. This activity, therefore, may pose potential threats for humans as well
as other animals as poultry may carry and spread different pathogens including drug-
resistant bacteria. This work concentrated on the isolation and identification of multi-drug
resistance E. coli and Salmonella spp. from chicken and pigeon.Forty five cloacal samples
were collected from 45 birds (chicken and pigeon) during the study. E. coli and
Salmonella spp. were isolated and identified on various types of agars. Biochemical tests
were also performed. Besides, the presence of E. coli and Salmonella spp. were further
confirmed by polymerase chain reaction (PCR). Moreover, antimicrobial susceptibility
testing of the isolates was performed against eleven antibiotics from seven classes on the
Kirby–Bauer disk diffusion method. The overall prevalence of E. coli and Salmonella spp.
was 84.45 and 53.33%, respectively. The antibiogram profile of 38 E. coli as well as 24
Salmonella spp. revealed that all isolates were resistant to more than antibiotics. Hundred
percent (100%) of E. coli showed resistance against amoxicillin, ampicillin and
erythromycin. Furthermore, E. coli found sensitive against ceftriaxone and gentamicin.
Similarly, around 100% of the Salmonella spp. showed resistance against amoxicillin,
ampicillin and Co-Trimoxazole, respectively. However, 66.67% and 58.33% Salmonella
spp. were found to show sensitivity against gentamicin and ceftriaxone. However, all
isolated E. coli and Salmonella spp. were Multidrug-resistant (MDR). Poultry species
carrying MDR E. coli and Salmonella spp. may contribute to the transmission and spread
of these microorganisms. Therefore, strict hygienic measures should be taken during the
farming & selling to decrease the potential transmission of E. coli and Salmonella spp.
from chicken and pigeon to humans as well as other animals
INFLUENCE OF HUMIC ACID AND NITROGEN ON GROWTH, YIELD AND ECONOMIC RETURN OF ONION
A Thesis
Submitted to Department of Entomology,
Faculty of Agriculture.
Sher-e-Bangla Agricultural University,
Dhaka-
In partial fulfillment of the requirements for the degree of
MASTERS OF SCIENCE (MS)
IN
DEPARTMENT OF HORTICULTUREA field experiment was conducted at Horticulture Farm of Sher-e-Bangla Agricultural
University, Dhaka from September 2021 to January 2022 to find out the effect of
different level of nitrogen and humic acid on growth, yield and economic return of
onion. BARI Piaz-5 was used as test crop material. Three different doses of nitrogen
viz., N
0
= 0 kg/ha, N
1
= 80 kg/ha, N
2
= 100 kg/ha and four different doses of humic acid;
H
0
= 0 kg/ha, H
1
= 12 kg/ha, H
2
= 14kg/ha, H
3
=16 kg/ha were used to conduct this
experiment in a two-factor Randomized Complete Block Design (RCBD) with three
replications. Data on growth and yield parameters were gathered and experimental
results revealed that different levels of nitrogen and humic acid significantly influenced
the growth, yield and economic return of onion. From results it was found that the
highest marketable bulb yield (14.60 t/ha) was obtained from N
2
(100 kg/ha nitrogen)
treatment while the lowest marketable bulb yield (11.99 t/ha) was obtained from N
0
(0
kg/ha nitrogen). The highest marketable bulb yield (16.82 t/ha) was obtained from H
2
(14 kg/ha humic acid) treatment while the lowest marketable bulb yield (11.81 t/ha)
was obtained from H
0
(0 kg/ha humic acid). The highest marketable bulb yield (17.91
t/ha) with the highest Benefit cost ratio (BCR) of 3.11 from N
2
H
2
(100 kg/ha Nitrogen;
14 kg/ha humic acid) treatment combination whereas the lowest marketable bulb yield
(9.82 t/ha) with the lowest benefit cost ratio (BCR) of 1.75 from N
0
(0 kg/ha
Nitrogen; 0 kg/ha humic acid) treatment combination. From economic point of view, it
was apparent from the above results that the combination of N
2
H
2
(100 kg/ha Nitrogen;
14 kg/ha humic acid) treatment was more economically profitable. So, the cultivation
of onion with N
2
H
2
(100 kg/ha Nitrogen; 14 kg/ha humic acid) treatment combination
was the most suitable treatment combination which promoted the plant growth, yield
and economic return
VEGETABLE FARMERS’ KNOWLEDGE ON ORGANIC FARMING
A Thesis
Submitted to Department of Entomology,
Faculty of Agriculture.
Sher-e-Bangla Agricultural University,
Dhaka-
In partial fulfillment of the requirements for the degree of
MASTERS OF SCIENCE (MS)
IN
AGRICULTURAL EXTENSION & INFORMATION SYSTEMThe main purposes of this study were to determine farmers’ knowledge on organic
farming and explore the relationship of the selected characteristics of the farmers’ with
their knowledge on organic farming. The selected characteristics were age, education,
family size, farm size, annual family income, training exposure, extension contact,
innovativeness and cosmopoliteness. Data were gathered from proportionally and
randomly selected 103 respondents (farmers) of different villages of Ramnathpur union
and Madhupur union of Badarganj upazila under Rangpur district by using a pretested
interview schedule during the period of 06 March to 19 March, 2023. Apart from
descriptive statistical methods, Pearson's Product Moment Correlation Co-efficient
analysis was used in order to analyze the data. Findings indicated that the majority
(65.04%) of the respondents had medium knowledge on organic farming, 19.61% had
low knowledge on organic farming and 15.53% had high knowledge on organic farming.
Out of nine selected characteristics of the respondents, education, training exposure,
extension contact and innovativeness had positive significant relationship with their
knowledge on organic farming. The rest of the variables namely: age, family size, annual
family income, farm size and cosmopoliteness did not show any significant relationships
with their knowledge on organic farming. Therefore, it is concluded that adequate
training and extension contact may help to increase farmers’ knowledge on organic
farming