Life Sciences

The pollutants and drastic environmental variation have also adversely effected and changed water qualities i.e. colour, hardness, turbidity, alkalinity, pH. COD, BOD and TDS etc. Aquatic life, thus, also is affected. Changes in morphology of amphibian, like-colour, pigmentation,  length, weight mass, etc. may occur.  This cannot be ignored that the afore-mention variation may be responsible to develop new varieties or sub species. Unfortunately, negligible work is done in relation to amphibian fauna of the area in recent-past.

The present empirical study aims to analyze the places of begging selected by beggars for begging activity. The study is based on primary source of data, collected through the field survey and direct questionnaire to the respondents in the Aligarh district of Uttar Pradesh during 2009. The study reveals that majority of the beggars preferred to go for begging in the residential areas, markets and religious places and remaining in the functions, railway station, etc.

Davana (Artemisia pallens) is an important high valued annual medicinal and aromatic herb of India belonging to the family Asteraceae. India has a monopoly in production and export trade of davana oil and India stands 3rd in essential oil production in the world.  Davana is propagated highly through seeds. Either on trade or before sowing evaluation of seed germination is essential. International rules for seed testing recommended different methodological requirements for seed quality evaluation.

The Diagnosis and Recommendation Integrated System (DRIS) foliar diagnostic norms were developed for N, P, K, S, Zn and Fe and identified the yield limiting nutrients in rice, based on crop nutrient survey of 150 rice fields in Karimnagar district of Andhra Pradesh in India. A wide variation in soils and management practices were noticed in selected rice fields under study. Index leaf samples were collected from all the selected fields at tillering stage and analyzed for N, P, K, S, Zn and Fe contents.

At College of Agriculture, Rajendranagar, Hyderabad in Andhra Pradesh, a field trial was carried out during the rainy (kharif) season  for the year 2004-05, the main aim of the research was to analyze the Production potential of two sunflower genotypes (Morden and KBSH-1) under varying fertility levels. The results of the study revealed that, among the growth characters like plant height, number of leaves, total dry matter per plant increased with increase in the fertility levels at each growth stages.

The oyster farming is widespread at the Benin (West Africa) coastal zone and provides sustainable revenues for grass-roots. This study assessed environmental conditions, farming systems, growth, yields and revenues of the cultivated shellfish, Crassostrea gasar. Results indicated that rearing milieu meets ecological conditions for successful oyster cultivation. Production stages were seed collection and stocking, oyster spreading, growth control, harvesting and processing. Mean stocking density of C. gasar recorded in the rearing milieu was 500 oysters per square meter.

The paper examines the impact of broadcast media commercialisation on agriculture and rural development in Nigeria. It highlights the importance of radio and television in the dissemination of agricultural technology and other useful information for rural development to the teeming farm families across the country, in complementing the ineffective extension services. However, the paper observed that inspite of the immense contributions of the broadcast media to agriculture and rural development, the commercial nature of the media industry now posed a serious challenge to this development.

Seasonal variations in municipal solid waste dumping site aged soil of Tuticorin were studied. Samples were collected at Tharuvaikulam compost yard 12 kms away from Tuticorin. pH, Ec(dSm-1), macronutrients (N,P,K) and micronutrients (Fe, Mn, Zn, Cu) contents were analysed in corporation solid waste dumping site aged soil samples. The present research analysis various nutrients of aged soil due to this we give the suggestion to corporation to recycle the corporation solid waste through vermin technology and save the soil fertility of agri fields.

The production of the common commercially Sciaenids species, Pseudotolithus senegalensis off Benin nearshore waters, has been decreasing since 1994, and increasingly more small-sized fishes are regularly harvested, while very little information exist about the species’ population structure and life history. Therefore, population structure, probability of capture and size at first capture were investigated using length-frequency data of 865 specimens sampled from beach seine hauls over a period of 18 months.

The present investigation was undertaken to study the effect of inoculation with NPK fertilizer and Arbuscular mycorrhizal fungi on growth and yield of cassava (Manihot esculenta Crantz). The growth attributes like shoot length, total number of leaves, number of roots per plant and root length and yield attributes, like number of tubers, tuber yield and starch content were noticed maximum under increased 100 per cent NPK with AM fungi inoculated plants.