Open Access Original Research Article

Effect of Soil Enhancer (XXL) and Fertilizers on the Morpho-Physiological and Yield Attributes of Brri Dhan28 (Oryza sativa L.) In Boro Season

Kamal Uddin Ahamed, Md. Saidur Rahman, Md. Wadud Faruk, Md. Sazzadur Rahman, Md. Anisur Rahman

Asian Journal of Research in Crop Science, Page 1-10
DOI: 10.9734/AJRCS/2018/43216

The experiment was conducted at the Research Farm of Sher-e-Bangla Agricultural University, Dhaka to find out the effect of soil enhancer (XXL) and fertilizers on the morpho-physiological and yield attributes of BRRI dhan28 in Boro season. The experiment comprised one factor viz. T1= Control, T2=100% recommended dose of fertilizer, T3= 100% dose of XXL without fertilizer, T4=100% dose of XXL + 100% recommended dose of fertilizer, T5=50% dose of XXL + 50% recommended dose of fertilizer, T6=50% dose of XXL + 100% recommended dose of fertilizer, T7=100% dose of XXL + 50% recommended dose of fertilizer and T8=100% dose of XXL + 75% recommended dose of fertilizer. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Significant variation was observed in different morpho-physiological and yield contributing characters of rice with XXL and fertilizers. Among the different XXL and fertilizers doses, 100% dose of XXL + 75% recommended dose of fertilizer provided the best result of rice with the increased of plant height (20.94%), SPAD value (17.46%), tillers hill-1 (61.84%), leaf area (38.43%), panicle length (8.44%), filled grain panicle-1 (33.91%) and 1000 grain weight (3.75%) over than control. The highest grain yield (7.65 t ha-1) which was (89.83%) higher than that of control treatment. It meant that BRRI dhan28 performed well with 100% dose of XXL + 75% recommended a dose of fertilizer applied.

Open Access Original Research Article

Effect of NPK Fertilizer and Animal Manure on Some Biometric Parameters of Irish Potato Solanum tuberosum L. in Bougham, West Region Cameroon

Tange Denis Achiri, Tsague Zambou Stella Michele, Christina Nsuh Konje, Dominic Kumbah Njualem

Asian Journal of Research in Crop Science, Page 1-10
DOI: 10.9734/AJRCS/2018/42938

Aim: The aim of this study was to evaluate the influence of NPK-based fertilizers and animal fertilizers on some biometric parameters of Irish potato in the Western Highlands of Cameroon.

Place and Duration: The study was conducted in Bougham, a village in the Western Highlands of Cameroon. The seeds were sown on the 4th of May 2016. Harvesting was done in August 2014.

Methodology: A total area of 250 m2 area was cleared and prepared in to a Randomized Complete Block Design (RCBD). Each block was divided into nine ridges. Eight fertilizer treatments (NPK 15:1515, NPK 11:11:22, Pig dropping, Poultry dropping, and four bi-combinations of the animal and NPK-based fertilizer) and a control treatment were randomly assigned to each ridge per block. Local farmer’s methods were adopted into overall agronomic activities of the study. Analysis of Variance (ANOVA) was done to evaluate differences in means and Duncan’s Multiple Range Test was used to separate means at a probability level of 0.05. Correlation analysis was also evaluated between biometric parameters.

Results: Fertilizer treatments had a significant (p=.05) influence on biometric parameters (Plant emergence, LAI, Plant height, Number of leaves, Plant cover, Number of plants harvested, Number of tubers per plant). There was no significant difference (p=.05) for number of tubers of plant. Significant correlation existed between some biometric parameters: plant emergence + number of plant harvested (r = 0.0514, p =.05), plant emergence + number of tubers per treatments (r = 0.693, p=.05).

Conclusion: In this study, it is implied that soil amendment practices influenced biometric parameters of Irish potato. Animal fertilizer: poultry and pig fertilizer had a great influence on growth and yield parameters. The advantages of incorporating organic fertilizer in crop production are enormous; rapid growth, high productivity, soil physio-chemical status revitalization and overall soil microbial activity.

Open Access Original Research Article

Phytochemical Properties and Antimicrobial Activities of Aqueous Extract of Curcuma longa (Turmeric) Rhizome Extract

Zakki Yula Hosea, Liamngee Kator, Egwu Helen Rhoda

Asian Journal of Research in Crop Science, Page 1-8
DOI: 10.9734/AJRCS/2018/43142

Curcuma longa (Zingiberaceae) is a native plant of Southern Asia and is cultivated extensively throughout the warmer parts of the world. The aim of the study was to determine the phytochemical properties and antimicrobial activities of Turmeric plant extract. The antimicrobial activities of the plant extract of Curcuma longa were determined using agar well diffusion method. The antimicrobial activity of the extract was tested at various concentrations of 0 g/ml, 0.1 g/ml, 0.15 g/ml and 0.2 g/ml respectively against Escherichia coli and Staphylococcus aureus. The zone of inhibition exhibited by ethanol extract against the test organisms ranged from 11.0 to 26.00 mm. The zone of inhibition exhibited by the aqueous extract ranged from 13.0 mm to 21.33 mm. The tetracycline standard antibiotic showed the highest grand inhibitory effect of 29.67 mm followed by the ethanol extract which showed 26.00 mm. The phytochemical screening revealed that the plant extract contained saponins, tannins, flavonoids, phenols and steroids. Turmeric plant shows antimicrobial potential and may be of great use to pharmaceutical industries for the development of medicines to cure ailments.

Open Access Original Research Article

Growth and Yield Variability in Cowpea (Vigna unguiculata L. Walp.) Cultivars Infected with Cowpea Aphid-Borne Mosaic Virus and Southern Bean Mosaic Virus

E. W. Mamman, M. T. Salaudeen, A. C. Wada

Asian Journal of Research in Crop Science, Page 1-10
DOI: 10.9734/AJRCS/2018/43107

Eight cowpea (Vigna unguiculata L. Walp.) cultivars were evaluated for Cowpea aphid-borne mosaic virus (CABMV), Southern bean mosaic virus (SBMV), CABMV+SBMV, and SBMV+CABMV resistance under screenhouse conditions at the School of Agriculture and Agricultural Technology Minna, Nigeria in 2016 (lat.9o40ʹN; long 6o30ʹE at an altitude of 220m.a.s.l). Virus infected plants were evaluated independently using a Completely Randomized Design with three replications. In single infections, cowpea seedlings were inoculated at 10 days after sowing (DAS) while in mixed infections the second virus inoculation was performed at 21 DAS. Disease incidence, symptom severity, plant’s growth and yield characters were recorded. The data were subjected to analysis of variance and Duncan’s Multiple Range Test was used for mean separation. Results showed that one hundred percent infection was obtained regardless of the cultivar. High disease severity with the symptom score of 4.0 was recorded for all the cowpea cultivars infected with CABMV alone and CABMV+SBMV, while moderate resistance with a symptom score of 3.0 was recorded only in cultivars IT09K-231-1 and IT10K-973-1 to SBMV, and in IT07K-299-6 and IT10K-973-1 to SBMV+CABMV. Through the four virus treatments, seed weight per plant was significantly (p<0.05) highest in IT10K-843  infected with CABMV which produced 3.5 g; cultivar, IT07K-299-6 inoculated with SBMV produced 4.9 g, while IT10K-973-1 under CABMV+SBMV infections produced 4.9 g; and IT07K-298-9 infected with SBMV+CABMV produced 4.4 g. The cowpea cultivar IT07K-299-6 which gave the highest seed weight under single and double virus infections can be exploited in hybridization studies to develop resistant cowpea varieties for use by farmers.

Open Access Original Research Article

Effect of Organic Preservatives on Postharvest Shelf Life and Quality of Tomato Fruits during Storage

Liamngee Kator, A. C. Iheanacho, Kortse P. Aloho

Asian Journal of Research in Crop Science, Page 1-34
DOI: 10.9734/AJRCS/2018/43137

Effect of organic preservatives on postharvest shelf life and quality of tomato fruits during storage was carried out. Healthy tomato fruits of three varieties Roma, Riogrande and UTC were obtained from the experimental farm at breaker stage. They were coated with Moringa, Neem and bitterleaf powders and stored at room temperature. Variety 3 (V3) produced significantly higher beta carotene content (0.182) than variety 1 (V1) (0.135) and variety 2 (V2) (0.127) on days 1 and 17 (0.205), (0.153) and (0.124). V2 produced significantly higher beta carotene value on days 21 (0.191) and 25 (0.233). Bitterleaf produced significantly higher beta – carotene content on days 1 (0.209), 5 (0.259) and 25 (0.191). No significant difference in firmness was observed within the varieties across the days. Moringa produced the lowest firmness value (2.917) on day 5 while control gave the lowest firmness value on days 13 (2.349), 17 (2.006), 21(1.273) and 25 (0.326). The highest lycopene content among the varieties was produced by V2 on day 21 (0.055) and V3 (0.055). Bitterleaf generally gave higher lycopene value on days 1 (0.028), 13 (0.071), 21 (.0.59) and 25 (.0.59). Moringa produced significantly higher lycopene content on days 5(0.059) while Neem gave significantly higher lycopene on days 9 (0.041) and 17 (0.052). V3 gave higher marketability value on day 21 (7.525). While Neem gave the highest marketability value (8.322) and (6.422) respectively. Bitterleaf gave the highest pH value (6.461) on day 1followed by Moringa (6.614) and Neem (6.387). Control gave the highest pH value (6.798) and (5.356) but this was significantly higher than that produced by Neem. The shelf life of the treated tomato fruits ranged from days 1 -25 while the control ranged from 1- 21 days. V1 gave the significantly highest value of TSS (4.223), Neem gave the highest TSS values on days 5 (4.856), 9(4.856), 13(4.833), 17(4.11), 21 (4.689) and 25(4.510) while the least TSS was given by the control on days 9(4.557), 13(4.044), 17(4.214), 21(4.108) and 25 (3.984). V3 gave higher titratable acidity (TA) (0.549) than V2 (0.475) and V1(0.485) on day 5,9(0.587), (0.485) and 17(0.612), (0.526) and (0.579) respectively. V1 produced the highest titratable acidity on the days 13 (0.627) and 21(0.561). Bitterleaf gave the highest titratable acidity on days1 (0.508) and 13 90.679) respectively. Moringa produced the highest TA value on days 9(0.548), 17(0.622) and 21(0.612) while Neem gave the highest TA on day 25 (0.557). V1 gave the highest vitamin C content than V2 and V3 on days 1(9.480), (5.330), (6.880), 5(9.189), (8.584), (5.06) and 9(12.775), (10.620),(10.499) respectively. Neem gave the highest Vitamin C content on days 1(9.400), 5(10.126), 13(10.980), 21(6.996), and 25(6.029). V3 produced significantly higher fruits weight than all the other varieties in days 1 (37.150), 5(35.440), 99(33.620) and 13(31.470). Bitterleaf produced the highest fruit weight on days 1(37.210), 5(35.400) and 9(33.580). The temperature of the storage room ranged from 23.0 - 36.0 and the RH ranged from 45 – 93%. These botanicals are environmentally friendly, cost-effective, easy to produce and easy to apply formulations and are also safe for consumers.