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Articles by M.A. Khaleque
Total Records ( 4 ) for M.A. Khaleque
  M.G. Sharoar , A.C. Deb and M.A. Khaleque
  Effect of different combinations of nitrogen (N), phosphorus (P) and potassium (K) on six characters namely Root Length (RL), Root Fresh Weight (FRW), Root Volume (RV), Nodule Number (NN), Nodule Weight (NW) and Pod Fresh Weight (PFW) were studied in three lines such as Line-2, Line-16 and Line-18 of blackgram. Analysis of variance showed that all the three lines are different from each other for each of the characters. Factorial analysis showed that N and P after 15 days of sowing, N and K after 30 days of sowing, NPK after 60 days of sowing and P, NP and NK after 75 days of sowing had significant effect on root length. N and NK after 30 and 90 days of sowing and N after 45 and 75 days of sowing had significant effect on root fresh weight. For root volume, N after 45 and 75 days of sowing and N and NK after 90 days of sowing had significant effect. N after 15 days of sowing, PK after 30 days of sowing, P after 45 days of sowing, K and NP after 60 days of sowing, K after 75 days of sowing and NK after 90 days of sowing found to be significantly effective for nodule number. The character nodule weight also affected by K, NP and NK after 15 days of sowing, by P after 30 days of sowing, by N, P, K, PK and NPK after 60 days of sowing and by P, NP and PK after 90 days of sowing. Only P found to be significantly effective for pod fresh weight at an age of 75 days.
  M.J. Alam , S. Dewan , M.R. Rahman , M. Kunda , M. Kunda , M.A. Khaleque and M.A. Kader
  The experiment was carried out simultaneously to compare the growth performance of Amblypharyngodon mola in rice fish culture system with Barbodes gonionotus and cyprinus carpio in farmer`s rice fields near to Bangladesh Agricultural University campus, Mymensingh for a period of 113 days from 12th August to 3rd December, 2002. Three treatments viz., T1 with A. mola and B. gonionotus, T2 with A. mola and C. carpio and T3 as control (without fish) were used in this study. Each treatment was provided with three replications. All the treatments were fertilized with urea (200 kg ha-1), TSP (150 kg ha-1) and MP (75 kg ha-1). With respect to cultural suitability, A. mola showed comparatively high growth rate and survival rate when it was stocked with C. carpio than with B. gonionotus. Among the three species A. mola showed the lowest growth rate and C. carpio showed the highest growth rate by average, net and percentage of increase. The production of fish were also recorded higher (576.27 kg ha-1) in the treatments stocked with A. mola and C. carpio than (298.91 kg ha-1) the treatment stocked with A. mola and B. gonionotus. However, the growth rate and survival rate of A. mola were always higher in treatment T1. Significantly (P<0.01) higher yield of grain and straw were obtained in the treatments with fish than without fish and they were found to increase over the control by 15.88-19.34% for grain and 12.78-15.34% for straw. The initial values (before rice transplantation) of soil pH, organic matter, total nitrogen, phosphorus and potassium contents did not show any significant difference among the treatments in most cases, but the final values (after harvest of rice and fish) of the same were recorded significantly higher in the treatments with fish than that of control (without fish) in most of the cases except pH.
  M.A. Samad , M.A. Islam and M.A. Khaleque
  An attempt was made to determine the effect of stocking densities on the growth of Magur (Clarias batrachus) fry (5.1 ± 0.10 mg) for a period of 28 days in trays in laboratory. Clarias batrachus fry were stocked at the rate of 30, 40, 50 and 60 fry/tray i.e. 3, 4, 5 and 6 fry/litre of water. Stocking density of 30, 40, 50 and 60 fry/trays were designated as treatment I, II, III and IV respectively the fry was feed by grounded tubifex. The survival rate of C batrachus fry upto 28 days were found 92.3, 90.3, 89.3 and 80.1% at the stocking density of 30, 40, 50 and 60 fry/tray, respectively. The treatment had no significant effects on the ADG, SGR and weekly growth increment in length. Average daily gain of Clarias batrachus was found 20.80, 21.80, 19.46, 19.31 in treatment I, II, III and IV. The value of SGR (%) was 17.58, 18.68, 17.33 and 17.30% in the above treatments. The final cumulative gain in length were 39.50 ± 0.51, 39.90 ± 0.10, 38.60 ± 0.60 and 37.60 ± 1.20 (mm) and fry reached to 588.3 ± 33.29, 604.3 ± 16.01, 550.0 ± 25.00, 546.6 ± 28.00 mg over a period of 28 days in treatment I, II, III and IV, respectively. The second experiment was performed to determine the effects of two selected feeds on the growth and survival rate C. batrachus fry in different nursery ponds for a period of 28 days. The protein level of the supplemental diet was 32.24% in feed I and 27.75% in feed II which were designated as treatment I and II. The feed was supplied daily at the rate of 10% of the body weight of the stocked C. batrachus fry. C. batrachus having an average initial length of 3.86 ± 0.05 cm reached to the final length of 7.26 ± 0.05, 7.12 ± 0.02 and in the gain in body weight and 3.38 ± 0.02 g under feeding treatment I and II, respectively. Analysis of variance (ANOVA) indicated that a significant difference (p>0.05) was observed in case of ADG, SGR, survival rate, cumulative growth increment in length and weight.
  B. Mondal , M.R. Rahman , M.J. Alam , A.R. Tarafder , M.A.B. Habib and M.A. Khaleque
  The experiment was conducted to evaluate the performance of organic nutrients of Unripe Tomato Juice (URTJ) added with 0.2 g L-1 urea and Bold Basal Medium (BBM) as standard, for growing of C. ellipsoidea in laboratory condition for three months. C. ellipsoidea was cultured four different concentrations such as 0.7, 1.4, 2.8 and 4.15 g L-1 URTJ with added 0.2 g L-1 urea and Bold Basal Medium for a period of 16 days. The initial cell density of C. elliposidea was 2.90x mL-1, which attained a maximum cell density of 108.03x mL-1 in BBM followed by 75.24x, 69.67x, 54.80xand 27.35x mL-1 in 2.8, 1.4, 0.7 and 4.15 g L-1 of URTJ media with added 0.2 g L-1 urea, respectively on the 12th day of culture. Similar trend was observed in case of optical density of C. ellipsoidea. The proximate composition of C. ellipsoidea cultured in URTJ media was analyzed and found that the ranges of crude protein, crude lipid, ash and moisture ranged from 22.39-39.91%, 3.66-5.19%, 10.10-11.11% and 8.15-9.45%, respectively. Results showed that growth of C. ellipsoidea was significantly (p<0.05) higher in the concentrations of 2.8 g L-1 of URTJ with added 0.2 g L-1 urea than other concentrations (0.7, 1.4 and 4.15 g L-1) of URTJ with added urea at the temperature of 29.04°C, dissolved oxygen of 5.71 mg L-1, pH of 8.08 and light intensity of 1583 luxm-2s-1
 
 
 
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