1,720,992 research outputs found
EFFECT OF STEM PRUNING ON YIELD AND YIELD CONTRIBUTING CHARACTERS OF CHERRY TOMATO IN SOILLESS CULTURE
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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
HORTICULTUREA pot experiment was conducted in the semi-greenhouse at the Horticulture Farm of Sher-e- Bangla
Agricultural University, Dhaka 1207, Bangladesh, during October 2019 to March 2020 to investigate
the effect of stem pruning on yield and yield contributing characters of cherry tomato in soilless
culture
. The experiment consisted of three level of pruning viz. P
ii
0
= No pruning; P
= One stem
pruning and P
2
= Two stem pruning and four different cherry tomato varieties viz. V
= BARI
Tomato-11; V
2
= BARI Tomato-20; V
3
= Red Star and V
= SAU Tomato-2. There were 12
treatment
combinations and experiment were setup in Completely Randomized Design (CRD) with three
replications. In case of pruning, the highest plant height, maximum branch number per plant,
maximum chlorophyll content, minimum days required for first flowering and first fruiting,
maximum flower cluster per plant, maximum fruit number per plant, highest single fruit weight (9.31
4
g), highest amount of TSS (9.46 degrees Brix) and yield per plant (2.37
kg) were obtained from P
treatment at 60 DAT. Similarly, in case of varieties, the highest plant height
, maximum branch
number per plant, maximum chlorophyll content, minimum days required for first flowering and first
fruiting, maximum flower cluster per plant, maximum fruit number per plant, highest single fruit
weight (8.50 g), highest amount of TSS (8.92 degrees Brix) and yield
per plant (2.63 kg) were
obtained from V
treatment at 60 DAT. In combined effect, the highest plant height
, maximum
branch number per plant, maximum chlorophyll content, minimum days required for first flowering
and first fruiting, maximum flower cluster per plant, maximum fruit number per plant, highest single
2
fruit weight (12.42 g), highest amount of TSS (10.53 degrees Brix
) and yield per plant (2.98 kg) were
obtained from V
2
P
2
treatment. Among the treatment combination, V
2
P
(BARI Tomato-20 variety
with two stem pruning) treatment seemed to be
more promising for obtaining the maximum yield of
cherry tomato
COMPARATIVE STUDY OF AGROGEOPHYSICAL METHODS FOR IDENTIFYING SOIL PIPES
Get PDFSoil erosion is considered the greatest challenge for soil management and agri-food production threatening human habitat and livelihood. Although soil erosion due to surficial processes has been well studied, the role of the subsurface process such as internal soil pipes has often been overlooked. Internal soil pipes directly contribute to total soil loss in agricultural fields that severely threaten agricultural sustainability. Locating, measuring, and mapping internal soil pipes and their networks are vital to assess the total soil loss in agricultural fields. Internal soil pipes are not commonly visible at the surface, and their subsurface networks rarely follow the surface topography. The hidden and uncorrelated nature of occurrences narrows down the applicability of manual and remote sensing-based techniques. Non-invasive agrogeophysical methods can overcome these limitations by providing detailed subsurface pictures with high spatial resolution. In this research, the applicability of four agrogeophysical methods i.e., seismic refraction, electrical resistivity (ER), ground-penetrating radar (GPR), and acoustics for precise detection of internal soil pipes is presented. The measurements are taken from an experimental field site with established internal soil pipes. Agrogeophysical signatures are later verified with the results of the cone penetrologger (CPL) invasive method. These verified agrogeophysical signatures provide significant insights into the spatial position and distribution of internal soil pipes. Signatures of agrogeophysical methods are presented in cross-sections and 2D Plan view maps. Cross-sections show the spatial location of soil pipes, whereas 2D plan view maps predicted the distribution of internal soil pipes networks and their path
EFFECT OF NITROBENZENE ON GROWTH AND YIELD OF BOTTLE GOURD (Lagenaria siceraria L.)
Get PDFA Thesis
Submitted to The Department of Horticulture,
Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
for the degree of
MASTERS OF SCIENCE (MS)
IN
HORTICULTUREThe experiment was conducted in the Horticultural Farm of Sher-e-Bangla
Agricultural University, Dhaka, Bangladesh. The experiment consisted of two factors.
Factor A: Different concentrations of nitrobenzene as C
II
0
= Control (Water only), C
=
Nitrobenzene @ 2 ml/L, C
2
= Nitrobenzene @ 3 ml/L and Factor B: N
= One spray,
N
2
= Two spray, N
= Three spray in the growing period. The experiment was laid out
in a Randomized Complete Block Design with three replications. In case of different
concentrations of nitrobenzene the maximum number of flower (male 51.06 and
female 40.18), the highest number of fruit harvested per plant (10.95) and the highest
yield (55.69 t/ha) were found from C
3
1
1
treatment, whereas the lowest from C
treatment. For number of spray the highest number of flower (male 49.02 and female
38.05), the maximum number of fruit per plant (10.32) and the highest yield (52.94
t/ha) were recorded from N
3
treatment, while the minimum were from N
treatment.
Due to combined effect, the maximum number of flower (male 57.78 and female
47.12), the maximum number of fruit harvested per plant (12.55), the highest yield
(63.38 t/ha) with net income (Tk. 587384.7) and BCR (2.23) were observed from
C
1
N
3
treatment combination, while the lowest were from C
So, economic analysis revealed that the C
1
N
3
0
N
1
1
treatment combination.
treatment combination appeared to be
the best for achieving the higher growth, yield and economic benefit of bottle gourd
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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