You are here: Home>JBAR Journal>Volume 04 (Issue 01 and 02)

Journal of Bioscience and Agriculture Research

Volume 04 - Issue 01  |  Year of Publication: 2015           

---

Article type: Research paper | No. 37 | Country: Bangladesh | pp. 01-09 | Downloads: ​
Title: Effects of Sowing Methods on Yield Attributes and Yield of Aus Rice under the Tidal Ecosystem
Authors: Das, G. C., Samanta, S. C., Biswas, P., Saha, N. K. & Bhattacharya, J.

View Full Article

Download Full PDF

Abstract: An experiment was conducted at agronomy field laboratory of the Patuakhali Science and Technology University, Patuakhali to study the effect of sowing method and variety on the yield and yield components of Aus rice (direct-seeded pre-monsoon rice during March-June). Six varieties viz. BR2, BRRI dhan27, BRRI dhan48, Kaliboro, Kalihaita and Tepu and two sowing methods viz. broadcasting and line sowing were used under the tidal ecosystem. Factorial experiment was laid out in a split-plot design with three replications. Results revealed that line sowing gave the highest Leaf Area Index (LAI) (3.89), dry matter plant-1 (31.17 g), total number of tillers hill-1 (4.31), total number of spikelets panicle-1 (102.33), panicle length (21.60 cm), 1000-grain weight (25.33 g), grain yield (3.29 t ha-1), straw yield (6.12 t ha-1) and biological yield (9.41 t ha-1) than the broadcasting method. Among the varieties the highest LAI (5.568), 1000-grain weight (29.73 g), grains panicle-1 (106), grain yield (3.71 t ha-1) and harvest index (44.54%) were recorded from BRRI dhan48. The lowest LAI (2.17), effective tillers hill-1 (3.34), grains panicle-1 (51.17), total spikelets panicle-1 (62.67), grain yield (2.50 t ha-1) and biological yield (7.28 t ha-1) were recorded from Kalihaita. The interaction between sowing method and variety revealed that the highest, grain yield (3.82 t ha-1) was recorded from BRRI dhan27 in line sowing. BRRI dhan48 in line sowing gave the highest LAI (5.66), harvest index (55.45%) and second highest grain yield (3.80 t ha-1). On the other hand, Kalihaita in broadcasting gave the lowest LAI (2.157), grains panicle-1 (6.99), grain yield (2.37 t ha-1) and biological yield (6.61 t ha-1). Results suggested that BRRI dhan48 is suitable in line sowing for higher yield under tidal ecosystem of Patuakhali. Key words: Aus rice, sowing methods, variety, yield and tidal ecosystem

[Top]

---

Article type: Research paper | No. 38 | Country: Bangladesh | pp. 10-19 | Downloads: ​
Title:  Suitability of cut corm as planting materials on flowering and corm-cormel production of gladiolus cultivars
Authors: Mahasen, M., Ona, A. F., Taufique, T., Mehraj, H. & Jamal Uddin, A. F. M.

View Full Article

Download Full PDF

Abstract: An experiment was conducted to study the cut corm as planting materials on flowering and corm-cormel production of gladiolus cultivars. Four different colored gladiolus viz. yellow (V1), lemon yellow (V2), white (V3), pink (V4) and cut corm viz. half corm (C1) with whole corm (control, C2) were used in experiment. Maximum floret number (13.0/spike), basal floret head diameter (9.2 cm) and vase life (5.2 days) was found from V1. All the studied characters were found statistically similar result between C1 and C2. Use of the cut corm did not affect the significantly on the floral and reproductive characters. All cultivars were performed satisfactorily with cut corm. Number of floret/spike reduction was 10.2% in V1, 19.7% in V2 while no reduction in V3 and V4 in half corm over whole corm. Number of corm/plot was reduced 4.5% in V1, 11.2 % in V2 while increased 4.5% in V3 and no reduction in V4 in half corm over whole corm. Therefore using half corm may be beneficial for farmers by reducing half of the planting materials for gladiolus production. Key words: Gladiolus, reproductive attributes, half corm and whole corm

[Top]

---

 | Downloads: Article type: Research Paper | No. 39 | Country: Bangladesh | pp. 20-30 | Downloads: ​
Title: Study on flowering characteristics and categorization of rose cultivars for color, fragrance and usage
Authors: Shahrin, S., Roni, M. Z. K., Taufique, T., Mehraj, H. & Jamal Uddin, A. F. M.

View Full Article

Download Full PDF

Abstract: An experiment was conducted to evaluate the performance of rose cultivars and their categorization based on color, fragrance and use. Field experiment included forty four rose cultivars coded from V1 to V44. It was found that all rose cultivars varied significantly for the studied characters like number of shoots/plant, leaf area, chlorophyll content, number of flower/plant and petals per flower. Rose cultivars were categorized in nine groups in accordance to color, three groups in accordance to the fragrance and two groups in accordance usage excluding the wild type. V3 (Tajmahal), V4 (Yellow star), V14 (Lavender gold), V16 (Compassion), V21 (SAU hero), V23 (Yellow gold), V25 (Sleepy moon), V26 (Sweet doll), V30 (Chrysanthemum rose) and V35 (Sweet sakata) cultivars were found as the cut flowers and rest were pot/bedding flower. Among the 44 cultivars desired one could be isolated easily for the specific purpose. Roses are vegetatively propagated and they are selected for defined traits such as stem length, flower bud, flower number, flower size and flower qualities (shape, color, fragrance). Breeding to modify a single characteristic generally results in changes to other characters as well. Key words: Rose, flowering characteristics, categorization and usage

[Top]

---

Article type: Research Paper | No. 40 | Country: Bangladesh | pp. 31-39 | Downloads: ​
Title: Relationship of initial seed borne infection of Colletotrichum corchori and jute seed yield parameters under greenhouse 
Authors: Alam, M. S. and Islam, M. M. 

View Full Article

Download Full PDF

Abstract: The study was under taken to make an acquisition of knowledge on the relationship of initial seed borne infection of Colletotrichum corchori and jute seed yield parameters under Greenhouse condition. Experiment was conducted at Plant Pathology Department and Greenhouse of Bangladesh Jute Research Institute (BJRI) during July 2011 to April 2012. All together 600 (six hundred) jute seed samples were collected from different sources and categorized as 0.0 %, 5%. 10%, 15%, 20% and 25% initial of pure seed borne infection with C. corchori for further study. Germination of the seed varied significantly and decreased with the increase initial seed borne infection of C. corchori. Germination failure/dead seed, infected seedlings and total dead seed varied significantly and increased with the increase of initial seed borne infection of C. corchori. There were negative relationships between, seed yield parameters of the harvested seeds of CVL-1 produced in Greenhouse with initial seed borne infection of C. corchori. The regression coefficients for germination, plants/pot, seeds/pod and seeds/plant were -1.048, -0.403, -0.756 and -34.24, respectively. On other hand, relationship of infected seedlings and total dead seeds in Greenhouse were positive with the initial seed borne infections of C. corchori and the regression coefficients for infected seedlings and total dead seed were 0.248 and 0.751, respectively. Since, anthracnose of jute caused by fungus Colletotrichum corchori is a seed borne disease and transmit from seed to plant to seed and consequently hamper the quality and yield of fibre and affect the seed quality and seed yield as well and thus necessary precautions should be taken before sowing and after germination of the seeds to produce higher yield and quality jute seed and fibre. Key words: Initial seed borne infection, Colletotrichum corchori, Seed yield parameter and Greenhouse

[Top]

---

Article type: Research Paper | No. 41 | Country: Bangladesh | pp. 40-51 | Downloads: ​
Title: Growth and flowering performance evaluation of thirty two chrysanthemum cultivars
Authors: Jamal Uddin, A. F. M., Taufique, T., Ona, A. F., Shahrin, S. and Mehraj, H.

View Full Article

Download Full PDF

Abstract: An experiment was conducted to evaluate the growth and flowering performance of chrysanthemum cultivars. Thirty two chrysanthemum cultivars coded from V1 to V32 were used in the experiment. Plant height, number of branch per plant, leaf area, number of leaf per branch, chlorophyll content, days to flower bud initiation, days to first petal spread, days to final bloom, number of flower bud per plant, number of flower per branch, number of flower per plant, bud diameter at initiation stage, bud diameter at mature stage, flower head diameter, stalk length and flower durability in plant (days to 50% flower senescence) for different cultivars varied significantly. Number of flowers per plant ranged from 4.3 to 194.6, flower head diameters varied from 2.8 to 17.6 cm and stalk lengths were from 4.4 to 20.1 cm. Amongst the chrysanthemum cultivars V15 (BARI chrysanthenum1) was the maximum flower producing cultivar, while V1 produced the largest flowers and flowers from the V21 had the longest shelf-life. These variations might help in classifying chrysanthemum, for pot cultivation and cut flower, based on their flowering quality which will be beneficial for growers. Key words: Chrysanthemum sp., Growth and flower characteristics, species variation

[Top]

---

Volume 04 - Issue 02  |  Year of Publication: 2015          

---

Article type: Research Paper | No. 42 | Country: Bangladesh | pp. 52-59 | Downloads: ​
Title: Effect of plant spacing and nitrogen on yield of transplant aman rice var. BRRI dhan52
Authors: Haque, M. A., Razzaque, A. H. M., Haque, A. N. A. and Ullah, M. A. 

View Full Article

Download Full PDF

Abstract: An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from 10 July 2012 to 15 December 2012 to investigate the effect of plant spacing and nitrogen levels on yield and attributes yield of transplant aman rice cv. BRRI dhan52. The experiment comprised of four plant spacing viz. 25 cm × 20 cm, 25 cm × 15 cm, 20 cm × 20 cm and 20 cm × 15 cm, and five nitrogen levels viz. 0, 40, 80, 100 and 140 kg N ha-1. BRRI dhan52 was used as planting material. Results revealed that plant spacing and N levels had significant effect on the studied crop characters and yield. The plant height, number of total tillers and effective tillers hill-1, grains panicle-1, grain and straw yields increased with increasing plant spacing and N levels. The highest plant height, number of total tillers and effective tillers hill-1 and grains panicle-1 was observed in the widest spacing of 25 cm × 20 cm resulting, the highest grain yield followed by 20 cm × 20 cm. In contrast, the closest spacing of 20 cm × 15 cm, produced the lowest values of the above mentioned plant parameters and also showed the lowest grain yield. The longest plant, highest number of total, effective tillers hill-1, grains panicle-1, grain and straw yields were observed with 100 kg N ha-1 followed by 140 kg N ha-1. On the other hand, the shortest plant, lowest number of total tillers and effective tillers hill-1, grains panicle-1, grain and straw yields were observed with no nitrogen and the non-effective tillers hill-1 and sterile spikelet’s panicle-1 were recorded the highest. In regard to interaction effect of spacing and N levels, the highest plant height, number of total and effective tillers hill-1 were observed in the widest spacing of 25 cm × 20 cm with 100 kg N ha-1 and resulting the highest grain yield. The lowest values of the above parameters were recorded in the narrowest plant spacing, 20 cm × 15 cm with no nitrogen application. Based on the experimental results, it may be concluded that 25 cm ´ 20 cm spacing with 100 kg N ha-1 would be the best treatments combinations regarding yield and yield attributes of BRRI dhan52. Key words: Transplant Aman rice, nitrogen levels, plant spacing, BRRI dhan52 and rice yield

[Top]

---

Article type: Research Paper | No. 43 | Country: Bangladesh | pp. 60-66 | Downloads: ​
Title: Reduction of arsenic entry into rice from arsenic contaminated soil using Pteris vittata as trap plant
Authors: Mayda, U., Shilpi, R. Y., Taufique, T., Mehraj, H. and Jamal Uddin, A F. M. 

View Full Article

Download Full PDF

Abstract: An experiment was conducted to reduce the entrance of arsenic on rice plant. Experiment consisted three different density of the trap plants viz. P1: No P. vittata (control); P2: four P. vittata plant per m2 and P3: eight P. vittata plant per m2. Inter planting of four P. vittata per m2 reduced 96.24 % and eight P. vittata per m2 reduced 97.01% arsenic accumulation into rice. Maximum yield was found from P2 (34.2 g per plant) which was statistically similar with P3 (32.9 g per plant) while minimum was found from P1 (30.0 g per plant). Highest amount of arsenic accumulation was found from P1 in rice grain (1.55 ppm), husk (5.57 ppm) and straw (39.78 ppm). Arsenic accumulation was found in rice grain (0.02 ppm in both P2 and P3), husk (0.60 and 0.58 ppm in P2 and P3 respectively) and straw (1.05 and 1.00 ppm in both P2 and P3 respectively). Concerning both yield of rice and arsenic concentrations in rice plant, it can be recommended to interplant four P. vittata plant per m2 area as a trap plant to reduce arsenic entrance into rice plant from soil which can keep away of arsenic pollution in food chain. Key words: Arsenic, rice, Pteris vittata, inter-planting and trap plant

[Top]

---

Article type: Research Paper | No. 44 | Country: Bangladesh | pp. 67-73 | Downloads: ​
Title: Occurrences, treatment and antibiotic resistant pattern of colibacillosis and salmonellosis in broiler
Author: Hossain, M. A., Amin, M. R., Khan, M. D. I., Mollah, M. L. & Amin, M. A 

View Full Article

Download Full PDF

Abstract: An experiment was conducted to investigate present occurrence of colibacillosis and salmonellosis in broiler and to find out the effective antibiotics for treatment of these diseases. The resistant pattern of Escherichia coli and Salmonella sp. against gentamicin, neomycin, oxytetracycline, amoxicillin, enrofloxacin and ciprofloxacin were also observed in Central Disease Investigation Laboratory (CDIL), Bangladesh. The occurrence of colibacillosis was 32.52% and salmonellosis was 13.17% but in mixed infection occurrence was 9.75% with colibacillosis and 2.92% with salmonellosis. Neomycin (38.00%) was mostly used for treatment of colibacillosis and enrofloxacin (25.93%) was used for treatment of salmonellosis. Efficacy of neomycin and enrofloxacin was 92.10% in colibacillosis and 85.81% in salmonellosis respectively. The study also revealed that Escherichia coli were resistant against neomycin (38.88%), oxytetracycline (50.55%), amoxicillin (60.68%), enrofloxacin (50.00%) and ciprofloxacin (30.55%). Salmonella sp. was resistant against neomycin (33.33%), oxytetracycline (63.33%), amoxicillin (63.33%), enrofloxacin (52.38%) and ciprofloxacin (52.38%) respectively. Gentamicin (100%) was highly sensitive for the treatment of colibacillosis and salmonellosis. Key words: Salmonellosis, colibacillosis, occurrences, treatments and antibiotic resistant

[Top]

---

Article type: Research Paper | No. 45 | Country: Bangladesh | pp. 74-79 | Downloads: ​
Title: Growth performance of Calamus tenuis Roxb. (Jali bet) in the coastal homesteads of Bangladesh
Author: Islam, S. A., Miah, M. A. Q., Habib, M. A. and Rasul, M. G.

View Full Article

Download Full PDF

Abstract: Trials were conducted in the rural homesteads to assess the propagation and growth performance of Calamus tenuis (jali bet) planted in the year 2010 and 2011 at 5 different sites, namely Char Kukri-Mukri (Bhola), Rangabali (Patuakhali), Char Osman (Noakhali), Sitakundu (Chittagong) and Kolatoli (Cox’s Bazar) in the coastal belt of Bangladesh. Data on survival, stem height, diameter, shoot production etc. were recorded from 4.5 years old and 3.5 years old two trial plantations. Result showed that the significantly greater stem height was recorded of 13.03m at Rangabali, greater diameter was 1.53cm at Cox’s Bazar and the greater number of shoots per clump was 27.45 at Char Kukri-Mukri site at the age of 4.5 years raised in 2010. In another experiment raised in 2011, the significantly greater height was 14.44m and the greater number of shoots produced per clump was 19.40 recorded from Rangabali site at the age of 3.5 years. The luxuriant stem growth was recorded from Char Kukri-Mukri and Rangabali areas and it was grown up to 21.15m and 20.0m respectively at the age of 4.5 years after planting. Therefore, this species can be planted in the coastal homesteads at wider scale for sustainable production of rattan (i.e., species of flexible palms in the tribe Calameae; an important non-timber mainly used for making baskets and furniture) resources in Bangladesh. Key words: Growth, Calamus tenuis, homesteads, rattan, coastal belt and shoot production

[Top]

---

Article type: Research Paper | No. 46 | Country: Bangladesh | pp. 80-85 | Downloads: ​
Title: Salinity affects flag leaf chlorophyll and yield attributes of rice genotypes
Author: M. S. Rahman, M. A. Haque and M. T. Islam

View Full Article

Download Full PDF

Abstract: Four rice genotypes Binadhan-8, PBRC-37, NERICA-1 and NERICA-10 were evaluated under four levels of salinity, i.e., control, 6, 9 and 12 dSm-1 to understand their effects on flag leaf chlorophyll content and yield attributes of these genotypes. The experiment was established under polythene shade to avoid rain water in the pot yard of Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh. NERICA-1 produced the highest grain yield hill-1 due to higher number of panicle hill-1, panicle length and 1000 grain weight against salinity (average of 0, 6, 9 and 12 dSm-1) which was followed by PBRC-37. The interaction effect of different levels of salinity and genotypes on different parameters (effective tillers hill-1, filled grains hill-1 and grain wt. hill-1) decreased slowly from control to 9 dSm-1 and then after it decreased sharply at 12 dSm-1. NERICA-1 and PBRC-37 were relatively high yielding at 12 dSm-1 compared to other two genotypes. Flag leaf chlorophyll a, chlorophyll b and total chlorophyll content were high in NERICA-1 and NERICA-10 compared to Binadhan-8 and PBRC-37. NERICA-1 and NERICA-10 showed higher chlorophyll a, chlorophyll b and total chlorophyll than Binadhan-8 and PBRC-37 in all salinity levels showed their higher chlorophyll stability against salinity. Furthermore, NERICA-1 and PBRC-37 showed salt tolerance up to 9 dSm-1 where NERICA-1 and NERICA-10 showed higher chlorophyll stability than Binadhan-8 and PBRC-37 against salinity. Key words: Rice genotypes, yield attributes, chlorophyll and salt tolerance

[Top]

---

Article type: Research Paper | No. 47 | Country: Bangladesh | pp. 86-91 | Downloads: ​
Title: Improvement of summer tomato (Lycopersicon esculentum Mill.) production using 4-chlorophenoxy acetic acid
Author: Karim, M. R., Nahar, M. A. & Sahariar, M. S. 

View Full Article

Download Full PDF

Abstract: A field experiment was conducted at the Horticulture Farm in the Department of Horticulture, Bangladesh Agricultural University, Mymensingh to evaluate the influence of different levels of 4-chlorophenoxy acetic acid on growth and yield potential of tomato during summer. The two-factor experiment viz., Factor A: four different concentrations of 4-chlorophenoxy acetic acid (4-CPA) i.e., concentrations of 4-CPA were (i) 0 ppm (without 4-CPA), (ii) 20 ppm, (iii) 40 ppm and (iv) 60 ppm; and Factor B: two varieties of summer tomato namely, BARI Hybrid Tomato-4 and 8. The experiment was laid out in randomized complete block design with three replications. At harvest, the tallest plant (78.53cm), number of flowers and fruits (35.11and 18.10, respectively) plant-1, fruit yield plant-1 and ha1 (1.12 kg and 21.98 tons, respectively) were found in BARI Hybrid Tomato-8. At harvest, the maximum plant height (85.57 cm), number of flowers and fruits (44.89 and 24.97, respectively) plant-1, fruit yield and ha-1 (1.32 kg and 27.78 tons, respectively) were found when 4-CPA applied at 60 ppm, whereas the minimum for these characters were recorded from control plants. In case of combined effect of variety and plant growth regulator, the maximum plant height (88.90 cm), number of flowers and fruits (40.04 and 21.99, respectively), fruit yield plant-1 and ha-1 (1.34 kg and 28.28 tons, respectively) were observed in BARI Hybrid Tomato-8 when treated with 4-CPA at 60 ppm, and the minimum for all these characters were found in control plants. The results of the present study suggest that 4-CAP at 60 ppm can be practiced for increasing summer tomato production for both the varieties. Key words: Plant growth regulators, growth, fruit set, yield and summer tomato

[Top]

---

• Take me to JBAR Volume 5 >