Characterization of soils of Talaulim watershed, North Goa and their suitability for cashew production

Talaulim watershed, North Goa located between 15º 27' N to 15º 29' N latitude and 73º 53' E to 73º 55' E longitude with an elevation of 2 to 90 m MSL, represents land area typical of West Coast as well as midlands and western foot slopes of Western Ghats, supposed to be ideal for cashew-growing. The climate is humid tropical with mean annual rainfall 2932 mm and temperature 27.3 ºC. A high intensity soil survey (1:5000 scale) was carried out in the watershed to characterize the land and soils. The data generated was used to assess the suitability for growing of cashew in those lands. The climatic characteristics like high rainfall, high mean annual temperature and appreciable dry season favour the growing of the crop. Slope (0-5 %), coarse fragments (0-60 % by volume), soil depth (>75 cm), AWC (> 75 mm/m), pH (5.5-7.5) and high organic carbon (> 0.8 %) are the congenial land qualities for cashew. The survey results revealed that, out of 597 ha surveyed, 133.7 ha (22.4 %) is highly suitable, 287.2 ha (48.1 %) moderately suitable and only 2.0 ha (0.3 %) marginally suitable. The remaining area of 65.7 ha (11.0 %) apart from marshy land (10.8 %), water body (4 %), salt pan (2.6 %) and settlements (0.8 %) is unsuitable. Interspersing cashew in the originally forested, but slightly degraded landscape is viable from soil conservation point of vie

Evaluation and identification of high yielding trees in Nigerian cocoa germplasm

Forty four Nigerian cocoa clones which are being conserved in the field gene banks of Central Plantation Crops Research Institute, Regional Station, Vittal, Karnataka were assessed for their growth and yield performance. Six year old trees were observed for their morphological characters and annual pod yields were compiled over eight years from five to twelve years of age after planting. Pod and bean characteristics were also studied for all the clones. Precocious, potential high yielders were identified from their vigorous growth habit in the introduced environment with sturdy stems and optimal canopy spread. Among the clones, NC-37, NC-23, NC-26, NC-50, NC-20, NC-51, NC-27 and NC-25 were identified as heavy bearers with an average of 61.9, 53.3, 49.4, 48.4, 45.1, 44.2, 43.9 and 43.0 pods per tree per year respectively and with high dry bean yields of more than one kilogram per tree per year. These clones recorded single bean weight of more than 1 gram, 10-15 per cent shelling percentage and more than 50 percent fat which made them suitable for industries as well

ADOPTING INNOVATIVE METHOD AND COMPARATIVE EVALUATION OF SWETHA PARPATI MENTIONED IN AYURVEDIC LITERATURE

In Ayurveda, the study of the therapeutic uses and effects of drugs means Pharmaco-therapeutic is described under the branch of Rasashastra which mainly incorporates inorganic, herbo-mineral and metallic pharmaceutical preparations namely Khalviya Rasayana, Parpati Rasayana, Pottali Rasayana and Kupipakwa Rasayana. This article aims for the comparative assessment of Swethaparpati coming under Parpatikalpa mentioned as per reference of Sidhayogasangraha, AFI with another reference of Rasodharatantra. According to the first two references the ingredients used for the preparation are Suryakshara, Sphatika and Navasadara and as per the third reference ingredients like Tankana and Karpura are added. Here a detailed review of literature has been collected regarding the potential of the above mentioned individual ingredients along with the recent research updates regarding individual ingredients used in the production of Swetha Parpati according to both the references it also incorporate research updates on the formulation Swetha Parpati. This article also aims pharmaceutical standardization of standard method adopted in process of production of Swethaparpati with the alteration made from the usual method adopted in preparation of Parpati Kalpana that will help for developing new improved SOP regarding the formulation. This paper also aims in projecting the improved therapeutic value which could be generated by addition of new ingredients mentioned as per reference of Rasodharatantra

A CRITICAL AYURVEDIC LITERARY REVIEW OF THE PLANT PANASA (ARTOCARPUS HETEROPHYLLUS LAM.)

Panasa (Artocarpus heterophyllus Lam), the well known jackfruit tree is widely distributed all over the world. It is a treasure trove of various ethnomedical uses which are yet to be proven scientifically. Its fruit is very delicious and its leaves, root, latex, seed and wood are reported to have many medicinal properties. Though the plant is renowned for its nutritive values, the useful parts of the plant with rich medicinal values are less utilized for medicinal purposes. The plant is well described in Ayurvedic classics where prime importance has been given to its fruit whereas least references are available concerned to its other useful parts especially the leaf. This forms the literature gap concerned with this drug that hinders its further clinical researches. A compiled review of the classical literature of Panasa is not yet available as a ready reference. Hence it is a herculean task for the researcher to compile the literature which is scattered in various classical books of different era. In this work focus has been made to compile the literature of the plant Panasa (Artocarpus heterophyllus Lam) from the Ayurvedic classics. As this work provides the literature of this plant under a single roof it will be helpful for the scholars in future research works

Effect of Holstein phonons on the optical conductivity of gapped graphene

We study the optical conductivity of a doped graphene when a sublattice symmetry breaking is occurred in the presence of the electron-phonon interaction. Our study is based on the Kubo formula that is established upon the retarded self-energy. We report new features of both the real and imaginary parts of the quasiparticle self-energy in the presence of a gap opening. We find an analytical expression for the renormalized Fermi velocity of massive Dirac Fermions over broad ranges of electron densities, gap values and the electron-phonon coupling constants. Finally we conclude that the inclusion of the renormalized Fermi energy and the band gap effects are indeed crucial to get reasonable feature for the optical conductivity.Comment: 12 pages, 4 figures. To appear in Eur. Phys. J.

Exploring the ability of stroke survivors in using the contralesional hemisphere to control a brain-computer interface

Brain-computer interfaces (BCIs) have recently been shown to be clinically effective as a novel method of stroke rehabilitation. In many BCI-based studies, the activation of the ipsilesional hemisphere was considered a key factor required for motor recovery after stroke. However, emerging evidence suggests that the contralesional hemisphere also plays a role in motor function rehabilitation. The objective of this study is to investigate the effectiveness of the BCI in detecting motor imagery of the affected hand from contralesional hemisphere. We analyzed a large EEG dataset from 136 stroke patients who performed motor imagery of their stroke-impaired hand. BCI features were extracted from channels covering either the ipsilesional, contralesional or bilateral hemisphere, and the offline BCI accuracy was computed using 10 × 10-fold cross-validations. Our results showed that most stroke patients can operate the BCI using either their contralesional or ipsilesional hemisphere. Those with the ipsilesional BCI accuracy of less than 60% had significantly higher motor impairments than those with the ipsilesional BCI accuracy above 80%. Interestingly, those with the ipsilesional BCI accuracy of less than 60% achieved a significantly higher contralesional BCI accuracy, whereas those with the ipsilesional BCI accuracy more than 80% had significantly poorer contralesional BCI accuracy. This study suggests that contralesional BCI may be a useful approach for those with a high motor impairment who cannot accurately generate signals from ipsilesional hemisphere to effectively operate BCI

Optical Hall conductivity of systems with gapped spectral nodes

We calculate the optical Hall conductivity within the Kubo formalism for systems with gapped spectral nodes, where the latter have a power-law dispersion with exponent n. The optical conductivity is proportional to n and there is a characteristic logarithmic singularity as the frequency approaches the gap energy. The optical Hall conductivity is almost unaffected by thermal fluctuations and disorder for n=1, whereas disorder has a stronger effect on transport properties if n=2

Coconut-growing soils of Kerala: 1. Characteristics and classification

Coconut plantations are the major land use systems in Kerala state. The tropical hot humid climate and soils of the state are considered suitable for the palm, with the exception of highlands occurring 600 m above MSL. However, the productivity of coconut is abysmally low in the state with an average productivity of around 40 nuts per year per palm. To find out whether the highly weathered and leached low activity clay soils developed in tropical hot humid climate is responsible for the low yield, an assessment of soil qualities in the coconut-growing soils of the state was made. Six distinct regions of coconut cultivation in the state were identified and delineated based on the variability of agro-climate and soils, viz., Central and Eastern Palakkad, Northern Kerala, Central Kerala, Southern Kerala, Onattukara sandy plains and coastal sandy plains. Soil profiles were studied at representative sites in each region. Investigated morphological features and sampled horizon-wise for the analysis of physical and chemical properties of the soil. Coconut-growing soils of Kerala state are in general deep and well drained, clayey or sandy having good structure permitting rapid transmission of water. The soils of Palakkad, Southern Kerala and Coastal Sandy Plains have near neutral reaction whereas the extensive areas of laterite soils of Northern and Central Kerala and sandy soils of Onattukara were strongly acid and had high levels of KCl extractable aluminium. The acid soils also analysed for low levels of basic cations, potassium, calcium and magnesium. Soils from all regions except Palakkad have low CEC. Surface and sub-soils base status were extremely low for soils of Northern and Central Kerala and Onattukara sandy plain. The soils of Central and Eastern Palakkad were classified as Typic Haplustalfs, Northern Kerala as Plinthic Humults, Central Kerala as Typic Plinthustults, Southern Kerala as Rhodic Kandiustults and the soils of sandy plains as Ustipsamments, according to soil taxonomy

Evaluation of the potential killing performance of novel percussive and cervical dislocation tools in chicken cadavers

1. Four mechanical poultry killing devices; modified Armadillo (MARM), modified Rabbit Zinger (MZIN), modified pliers (MPLI) and a novel mechanical cervical dislocation gloved device (NMCD), were assessed for their killing potential in the cadavers of euthanised birds of 4 type/age combinations: layer/adult, layer/pullet, broiler/slaughter-age and broiler/chick. 2. A 4x4x4 factorial design (batch x device x bird type + age) was employed. Ten bird cadavers per bird type and age were tested with each of the 4 devices (N = 160 birds). All cadavers were examined post-mortem to establish the anatomical damage caused by each device. 3. Three of the mechanical methods: NMCD, MARM and MZIN demonstrated killing potential, as well as consistency in their anatomical effects, with device success rates of over 50% indicating that the devices performed optimally more than half of the time. NMCD had the highest killing potential, with 100% of birds sustaining the required physical trauma to have caused rapid death. 4. The MPLI was inconsistent, and only performed optimally for 27.5% of birds, despite good killing potential when performing well. Severe crushing injury was seen in >50% of MPLI birds, suggesting that birds would die of asphyxia rather than cerebral ischaemia, a major welfare concern. As a result, the modified pliers are not recommended as a humane on-farm killing device for chickens. 5. This experiment provides important data on the killing potential of untried novel percussive and mechanical cervical dislocation methods, informing future studies