Inter-relationship and path analysis of different traits of two line hybrid in rice (Oryza sativa L.)

The present study was undertaken with the objective to determine the nature and magnitude of variability, degree of association between yield and it`s component characters and their direct and indirect effects on grain yield in rice. The experiment was conducted on rice in year 2013-14 at Borlaug Crop Research Center of G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand. All the traits had positive correlation to seed yield per plant of rice except days to flowering at genotypic level and at the phenotypic level. At phenotypic level panicle length (0.2145) and harvest index (0.4713) had highly significant level and positive correlation to seed yield per plant. Grain number per panicle (0.1550) and panicle number per plant (0.1398) showed positive and level of significant correlation with seed yield per plant. The days to flowering (-0.1879) have highly significant level with negative correlation to seed yield per plant. Path analysis showed the positive and direct effect on seed yield per plant at genotypic and phenotypic level for panicle number per plant (0.393 and 0.380 respectively), panicle length (0.236 and 0.198), grain number per panicle (0.646 and 0.112) and harvest index (0.443 and 0.448). While days to flowering (-0.175 and -0.167) and plant height (-0.037 and -0.008) had negative direct effect. The traits which showed positive correlation and positive direct effect on seed yield per plant can be used to increase seed yield for further breeding programs and may be given due importance in selection during rice breeding programme

The Importance of Sociality for Understanding Knowledge Sharing Processes in Organizational Contexts

This paper explores how different models of sociality can contribute to a better understanding of the dynamics of knowledge sharing within different organizational settings. It is asserted that the dynamics of knowledge sharing is organized according to a mix of four relational models distinguished by the relation models theory (Fiske, 1991). It is described how each of these models (communal sharing, authority ranking, equality matching and market pricing) have their own implications for understanding and supporting the knowledge sharing process. What model of social relations is in use, is influenced by cultural implementation rules, the kind of activity with its division of labor and the characteristics of knowledge being shared and technologies being used. By knowing according to what relational model(s) knowledge is being shared, one can better understand and consequently better facilitate the organizational and technical conditions for sharing knowledge (and vice versa)

Intense Collaboration In Globally Distributed Teams: Evolving Patterns Of Dependencies And Coordination

As multi-national firms and major offshore outsourcing companies develop experience with global work, their globally distributed teams face the challenge of collaborating intensely without the common interaction advantages associated with collocated work. This chapter analyzes the sources of intense collaboration. It then introduces strategies that organizations have developed to reduce the intensity of collaboration (sequentializing work, using mediating artifacts, modularity), or to enable intense teamwork (real time contact, boundary spanners). Strategy properties and deployment opportunities and constraints are indicated in order to equip managers and researchers with a framework for handling or analyzing globally distributed teamwork

Effect of humic acid and nutrients mixture on quality parameter of Tomato (Lycopersicon esculentum Mill.) under polyhouse condition

An experiment was conducted on Effect of humic acid and nutrients mixture on growth and yield parameter of Tomato (Lycopersicon esculentum Mill.) under polyhouse condition at Rajasthan College of Agriculture, Udaipur (Raj.). The data was analyzed statistically following completely randomized design. The results revealed that treatment T7 [(RDF + humic acid 10 kg/ha soil application + humic acid 0.1% foliar spray + nutrient mixture foliar spray (0.2% Ca + 0.5% Mg + 0.2% B + 0.5% Zn)] was recorded superior to enhance leaf nutrients analysis Ca (1.656%), Mg (0.763%), Zn (25.07ppm) and B (61.94ppm), fruit nutrient analysisCa (1.904%), Mg (0.877%), Zn (58.98ppm) and B (61.84ppm), total Soluble Solids (TSS) (6.020%), ascorbic acid content (39.85mg/100g), lycopene content (3.75 mg/100g) and cost benefit ratio (4.81)

Microstructural evolution in hot compressed TiHy 600 titanium alloy

TiHy 600 alloy is a near alpha titanium alloy, widely used for gas turbine engine applications such as disc and blades for high pressure compressors. One drawback of this alloy is that it is susceptible to cold dwell fatigue, which is due to the presence of micro-textured zones. Thus, appropriate processing parameters (i.e. temperature, strain and strain rate) are required to reduce the size of the micro-textured region. In order to find out the optimized processing parameters, hot compression tests were performed up to 50% engineering strain at temperatures range of 900oC-1050oC and strain rate range of 10-3 to 101 s-1 using thermo-mechanical simulator (Gleeble 3800®). Flow behavior characteristics were studied from the data obtained during hot compression and processing map was developed at true strain of 0.6 using Dynamic Materials Modeling (DMM) approach. Microstructural examination of deformed TiHy 600 titanium alloy were carried out at a particular strain rate of 10-3 s-1 and temperatures of 900oC, 950oC, 975oC, 1000oC and 1050oC. Microstructural examination consists of orientation image mapping along compression direction using electron backscatter diffraction. Hot compression mostly resulted into new dynamic recrystallized (DRX) alpha grains at 900oC, mixture of deformed large alpha grains containing subgrain boundaries and transformed beta phase consisting of secondary alpha laths at 950oC and 975oC and alpha laths transformed from deformed beta grains at 1000oC and 1050oC

Hypothalamo-neurosecretory system of the female sea bass, Lates calcarifer (Bloch), with special reference to gonadal maturation

Hypothalamus of Lates calcarifer (Family : Centropomidae) consists mainly of nucleus preopticus (NPO), nucleus lateralis tuberis (NLT) and their axonal tracts. NPO is a paired structure situated on either side of the third ventricle slightly above the optic chiasma. It is a highly vascularised structure and cytoarchitecturally divisible into dorsal pars magnocellularis (PMC) comprising larger neurons and ventral pars parvocellularis (PPC) with smaller neurosecretory cells. In the hypothalamus the NLT cells were found distributed uniformly in the infundibular floor adjacent to the pituitary stalk. Prominent phloxine-positive neurosecretory material (NSM) was encountered in PPC of matured female. Though neurosecretory cells of both NPO and NLT were positive to aldehyde fuchsin (AF), acid and chrome-alum-hematoxylin-phloxine (CAHP), cellular differentiation was more marked in the latter. Both NPO and NLT contributed beaded axons to form the neurohypophysial tract. Herring bodies (HB) of varying sizes were encountered in the anterior neurohypophysis (ANH). Neurosecretory cells of both NPO and NLT exhibited fluctuations in their secretory activity in response to the gonadal maturation

Origin of depressed fill factor in organic solar cells due to S-shape current-voltage characteristics

Often, a depressed fill factor is observed in organic solar cells (OSCs), which is usually known as S-shaped current-voltage (J-V) characteristics. To investigate the origin of the depressed fill factor further, a poly[N-9-heptadecanyl-2,7-carbazole-alt-5,5-(4,7-di-2-thienyl-2,1,3-benzothiadiazole)]:[6,6]-phenyl C71 butyric acid methyl ester based OSC has been characterized through impedance spectroscopy. In addition, the photocurrent vs the applied effective bias plot reveals that the S-shaped J-V characteristics primarily reduce the diffusion current of the device. The present study shows that the diffusion current dominated section of photocurrent reduces with a slope of 2 in the depressed fill factor section given that the slope may further increase as per the impact of the S-shape. The reduction in the diffusion constant (D-n) in the S-shaped region supports the decrease in the diffusion current, which is observed through the photocurrent analysis. It is observed that, in the S-shaped section of the current-voltage characteristics, the transport time for free carriers increases up to 443 mu s. The larger Urbach energy for the active layer of an S-shaped device demonstrates higher subbandgap disorder. Therefore, it is concluded that the accumulation of the charge carriers within the device and disorder in the active layer leads to the S-shaped current-voltage characteristics as well as poor carrier extraction

Rotating Scalar Field and Formation of Bose Stars

We study numerical evolutions of an initial cloud of self-gravitating bosonic dark matter with finite angular momentum and self-interaction in kinetic regime. It is demonstrated that such a system can undergo gravitational condensation and form a Bose star. The results show that the gravitational condensation time is strongly influenced by the presence of finite angular momentum or the strength of self-interaction. We find that in the cases related with attractive or no self-interaction, there is no significant transfer of angular momentum from the initial cloud to the formed star. However, for the case repulsive interaction our results indicate that such a angular-momentum transfer is possible. These results are consistent with the earlier analytical work where the stability of the rotating boson star was considered [Dmitriev et al. 2021].Comment: New results have been incorporate

Effect of Ti reinforcement on the physical and mechanical properties of AZ91/Ti composites

602-607Magnesium-metal matrix composites reinforced with ceramic materials (TiO2, SiC, B4C, Al2O3) have better mechanical strength as compared to pure magnesium but their ductility is very low. On the other hand, the Mg-based composites reinforced with carbonaceous (carbon nanotubes, graphite, graphene, etc.) reinforcements have better wear resistance; however, there are chances of agglomeration of reinforcement. To overcome the limitations mentioned above; the Mg based composites reinforced with metallic reinforcements (Ti) have prepared in the present work. The physical and mechanical properties of prepared Mg/Ti composites have diagnosed experimentally. The density (green and sintered), hardness, compressive stress, and ductility have increased with the addition of Ti to the Mg matrix. Reason for increase in the density and other mechanical properties after the addition of Ti to the Mg matrix is the increased compressibility, reduced porosity and proper mechanical bonding of Mg-Ti. The maximum hardness (47.5 BHN) and ultimate compressive strength (187 MPa) has obtained for Mg + 6% Ti composite