Open Access Original Research Article

Analysis of Rainfall and Temperature Changes and Variability over Glen Farm, South Africa

G. Zuma-Netshiukhwi

Asian Journal of Advances in Agricultural Research, Page 1-19
DOI: 10.9734/ajaar/2021/v16i230169

In the agricultural domain, decision-making is greatly guided by agricultural meteorology, which is the science that applies knowledge of weather and climate to qualitative and quantitative improvement in agricultural efficiency. The study area is challenged with increasing multifaceted agricultural production risks and complex agricultural ecosystems, which require analysis and understanding of local rainfall and temperature patterns. Digital technologies, such as the automatic weather station, play a pivotal role to monitor the physical environment, successively. This study engaged on a thorough analysis and interpretation of long-term rainfall and temperature data. The results would enable farmers and other users to comprehend valuable knowledge for improved productivity. The objectives of this paper were to analyse long-term climate data for Glen automatic weather station. To determine decadal climate patterns and trends, determine seasonal shifts, climate variability and climate change and quantify the frequency of the occurrence of weather extremes and develop suitable adaptation strategies relating to agronomic, phenological and physiological data necessary for crop modelling, operational evaluation and statistical analysis. The applied methods entailed Microsoft Excel and INSTAT Plus statistical software, which used to detect the interactions of environmental factors and suitable agricultural productivity. Understanding of rainfall and temperature patterns is required for agricultural management decisions, on planting date selection, crop suitability, livestock adaptation, ecosystem conservation. Agro meteorological knowledge derived from meteorological parameters, temperature, rainfall, wind and weather extremes, and may enhance agricultural productivity. Analysis of long-term and decadal trends in the time series indorse a sequence of alternately increasing and decreasing in mean annual rainfall and air temperature in Glen Farm.

Open Access Original Research Article

Genetic Diversity, Correlations and Path Coefficient Analysis among the F5 Populations of Brassica Species

Sujon Kumar, Barkat Ali, A. B. M. Khaldun, Shams Shaila Islam, M. Shalim Uddin, M. A. Latif Akanda, M. Shohidullah Miah

Asian Journal of Advances in Agricultural Research, Page 20-31
DOI: 10.9734/ajaar/2021/v16i230170

The present study was carried out to estimate heritability, genetic variability, correlation and genetic advance among F5 populations of ten genotypes in Brassica species. This study was executed following randomized complete block design (RCBD) with three replications during November 2017 to February 2018 at the experimental field of College of Agricultural Sciences, International University of Business Agriculture and Technology, Dhaka, Bangladesh. Aim of the research was to evaluate and select the best segregating genotypes for the yield and yield contributing traits towards variety development programs. Analysis of variance revealed that the genotypes were significantly different for all the characters studied. The relative phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV) for all the traits studied. The high GCV value was observed for the days to 50% flowering (FF), plant height (PH), primary branches per plant (PBP), pod per plant (PP) and seed yield per plant (SYP) that indicated a high broad-sense heritability. A significant positive correlation with seed yield per plant was found in days to 50% flowering (0.578**), the plant height, (0.787**), pod length (PL) (0.406*), seeds per plant (SP) (0.369*), pod per plant (0.697**) and hundred seeds weight (HSW) (0.500**), but significantly negative correlation found in primary branches per plant (-0.046*). The results of path coefficient analysis revealed that days to 50% flowering (0.287), plant height (0.407), pod length  (0.919), seeds per plant (0.033), pod per plant (0.035) and hundred seeds weight (0.795) had a positive direct impact on seed yield per plant and thus it was indicated that these traits could be exploited for the enhancement of yield performance of Brassica species. This study showed that based on the agronomic performance execution, genotypes G2, G5, G6 and G8 might be proposed for future hybridization programs in Bangladesh followed by variety development activities.

Open Access Original Research Article

Development and Proximate Evaluation of Spirulina Enriched Food for Elderly Population

Farhat Jahan, Jai Prakash, Sunita Mishra

Asian Journal of Advances in Agricultural Research, Page 32-39
DOI: 10.9734/ajaar/2021/v16i230171

Spirulina is a multicellular cyanobacterium that has achieved a considerable popularity in the health sectors due to high protein content, antioxidant and macro and micro nutrients. The consumption of food containing spirulina can forget the complications/diseases related with protein and iron deficiencies especially elderly population. This regard, a study to require to development of spirulina enriched food for elderly population. In the present study, spirulina enriched food bar (SEFB) was developed. SEFB accept overall acceptability by panelist such as color and appearance, aroma/odour, flavor and taste, body and texture. SEFB showed good amount of protein (11.86%), and iron (30.24%) as compared to control. Afterward, the developed SEFB exhibited good amount of antioxidants content (42.86%) and moisture conent (12.86%), respectively. SEFB can be most attractive and nutritious food for elderly people due to rich source of protein and iron. This novel food can solve diseases/problems related with protein and iron deficiency.

Open Access Original Research Article

Diagnosis of Ketosis in Postpartum Dairy Cows by Rapid On-Farm Tests in the Peri-Urban Area of Dakar, Senegal

M. C. Kadja, M. Kalandi, A. Koumai, S. Sourokou Sabi, Y. Kane, Y. Kaboret

Asian Journal of Advances in Agricultural Research, Page 40-51
DOI: 10.9734/ajaar/2021/v16i230172

The objective of this study is to contribute to the improvement of the productivity of dairy farms through the rapid detection of metabolic diseases of dairy cows on the farm. The study involved 42 dairy cows from a dairy farm located in the village of Niacoulrab. Four blood and urine samples were taken from each cow every two weeks for the first eight weeks after calving. Blood and urine ketone and glucose determinations and urine pH measurements were performed by FREESTYLE OPTIUM device, CUMBUR Test and pH paper during the first 8 weeks postpartum. The following results were obtained: the prevalence and incidence of subclinical ketosis were very high 45% and 32% respectively. At the 4th week of lactation, the blood concentration of Beta-Hydroxy-Butyrate was very high respectively 1.9 ± 0.31mmol/l and 4.2 ± 0.85 mmol/l in subclinical and clinical ketosis cows. At the 4th week of lactation, urinary acetoacetate concentration was very high in subclinical and clinical cows with values of 8.8 ± 2.3 mmol/l and 15 ± 3.8 mmol/l respectively. Blood glucose concentration was very low in subclinical and clinical ketosis cows with values of 0.37 ± 0.03 mmol/l and 0.2 ± 0.03 mmol/l respectively around the 4th week of lactation. There was a strong correlation between the concentrations of glucose (r2= -0.88) and Beta-HydroxyButyrate (-0.86) in blood and also with those of acetoacetate in urine.

Open Access Original Research Article

Productivity of Two Rice Varieties Using Ratoon System Through N Fertilizing Treatments at Two Flooding Types on Tidal Lowland Area

. Gribaldi, . Nurlaili, Ekawati Danial, Firnawati Sakalena

Asian Journal of Advances in Agricultural Research, Page 52-59
DOI: 10.9734/ajaar/2021/v16i230173

Aims: This research objective was to determine productivity of two rice varieties using ratoon system through regulation of N fertilizer application at two flooding types in tidal lowland area. 

Place and Duration of Study: The study was conducted from February to July 2020 at two locations in tidal lowland area, i.e. B-type flooding located at -203859, 132S 10404428,449E and C-type flooding located at -203858,81S 10404426,745E in Mura Sugih Village, Tanjung Lago Subdistrict, Banyuasin District, South Sumatra, Indonesia.

Study Design: The experimental design used in this study was Factorial Randomized Block Design with two treatments factors and four replications.  The variety treatments (V) were consisted of V1: Inpari 30 and V2: Hipa 5 Ceva. N fertilizer application treatments (A) were consisted of A1: N fertilizing: 1/3 dose at planting period + 1/3 dose at 42 dap + 1/3 dose at 1 day after harvest (dah) of main crop; A2: N fertilizing: 1/3 dose at planting period + 1/3 dose at 42 dap + 1/6 dose at 1 dah of main crop + 1/6 dose at 21 dah of main crop.

Result: The results showed that N fertilizer application regulation can increase productivity of two rice varieties using ratoon system at two flooding types land in tidal lowland area. Productivity of rice hybrid (Hipa 5 ceva) tend to be higher than that of rice inbred  (Inpari 30) using ratoon system at two flooding types land in tidal lowland area. Productivity of two rice varieties using ratoon system tend to be higher at B-flooding type land than that of C- flooding type land.