Browsing by Author "ASADUZZAMAN, MD."

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EFFECT OF CULTIVARS AND POTASSIUM ON THE GROWTH, YIELD AND NUTRIENT CONTENT OF OKRA
(Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University., 2013-06) ASADUZZAMAN, MD.
The experiment was carried out at the experimental Farm of Sher-e-Bangla Agricultural University (SAtJ), Dhaka during the period from April to July 2012 to study the elièct of cultivars and potassium on the growth. yield and nutrient content of okra. The test crop used in the experiment was Dherosh cultivar. The experiment consisted of two factors. Factor A: Dherosh cultivars (2 cultivars) asC1: Arka Anarnica; C2: Dherosh F1 Green Lady and Factor B: Potassium fertilizer (4 levels) as-K0: 0 kg K20!ha (control): K1: 50 kg K20Iha; 1(2: 100 kg 1(20Iha and K3: 150 kg K20/ha. The two factors-experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. In ease of okra cultivar. at 20, 40, 60 and, 80 DAS, the tallest plant (24.58 cm, 52.20 cm. 74.92 cm and 89.95 cm, respectively) was recorded in C. whereas the shortest plant (22.70 cm, 48.91 cm. 69.48 cm and 84.18 cm, respectively) was observed in C. The maximum number of pods per plant (24.57) was observed in C1 and the minimum number (23.80) was recorded in C2. The highest yield per hectare (8.91 ton) was recorded in C1 and the lowest yield per hectare (8.03 ton) was found in C2. The highest potassium content in pod (1.17%) was recorded in C1 and the lowest potassium (1.08%) in C2. For potassium fertilizer, at 20, 40, 60 and 80 DAS, the tallest plant (25.23 cm, 53.50 cm, 81.30 cm and 84.70 cm. respectively) was observed in K7, while the shortest plant (21.48 cm. 46.54 cm, 63.40 cm and 78.03 cm. respectively) was recorded in K0. The maximum number of pods per plant (25.07) was observed in K2, again the minimum number (23.30) was recorded in K0. The highest yield per hectare (9.28 ton) was recorded in K2, whereas the lowest yield per hectare (7.22 ton) was recorded in K0. The highest potassium content in pod (1.34%) was recorded in K3, whereas the lowest (0.82%) potassium in K0. Due to the combined effect of okra cultivars and different levels of potassium, at 20,40.60 and 80 DAS. the tallest plant (25.57 cm, 54.13 cm, 78.80 cm and 94.20 cm, respectively) was found in C1K2 and the shortest plant (20.06 cm, 41.78 cm, 51.00 cm and 70.80 cm, respectively) in C2K0. The maximum number of pods per plant (25.60) was found in C1 K2 and the minimum number (22.67) in C2K0. The highest yield per hectare (9.75 ton) was found in C1 K2. while the lowest yield per hectare (6.91 ton) in C2K0. The highest potassium content in pod (1.43%) was found in C1 K3. while the lowest potassium (0.75%) in C2K0. Form the findings it was revealed that Arka Anamica okra cultivar with 100 kg K20/ha was the best combination for attaining highest yield contributing characters and yield of okra.
EFFECT OF VARIETY AND NAA ON WATER RELATIONS AND YIELD OF MUNGBEAN IN KHARIF-II SEASON
(DEPARTMENT OF AGRONOMY, 2013-06) ASADUZZAMAN, MD.
The experiment was conducted at the Agronomy Field of Sher-e-Bangla Agricultural University, Dhaka during the Kharif -II season from June to November, 2012 to study the effect of variety and NAA on the water relations and yield of mungbean. In experiment, the treatment consisted of two variety viz., V 1 = BARI mung 2, V = BARI mung 5, and five different doses of NAA, viz., N 0 = 0 ppm NAA, N 1 2 = 20 ppm NAA, N 2 = 40 ppm NAA, N = 60 ppm NAA, N = 80 ppm NAA. The experiment was laid out in a two factors randomized complete block design (RCBD) with three replications. Variety and NAA had significant influence on water relations, yield and yield components of mungbean. The highest RWC was obtained from BARI mung 5 with 80 ppm NAA treatment. The highest exudation rate was obtained from BARI mung 2 with 40 ppm NAA treatment. The tallest plant (94.73 cm) was obtained from BARI mung 2 with 80 ppm NAA. The Longest pod was recorded in BARI mung 5, 20 ppm NAA and BARI mung 5 20 ppm interactions. The highest number of pods per plant was recorded in BARI mung 2. The maximum number of pods per plant was obtained from 20 ppm NAA. The maximum number of pods per plant was obtained from BARI mung 2 with 20 ppm NAA 4 treatment. The maximum seed yield (1.39 t ha -1 ) was found in BARI mung 5. The maximum seed yield (1.43 t ha -1 ) was obtained from 20 ppm. The highest seed yield (1.51 t ha -1 ) was obtained from BARI mung 5 with 20 ppm NAA while the lowest (1.00 t ha -1 ) from BARI mung 5 with 0 ppm NAA. 3
MANNITOL INDUCED SEED PRIMING ENHANCES SALT TOLERANCE CAPABILITY IN MUNGBEAN (VIGNA RADIATA) UNDER SALT STRESS
(DEPARTMENT OF AGRONOMY, 2014-06) ASADUZZAMAN, MD.
A laboratory experiment was conducted at the Agronomy lab, Sher-e-Bangla Agricultural University, during the period from August 2013 to February 2014 to investigate the potentiality of seed priming for induction of salt tolerance capability and the pre-sowing seed treatment with mannitol on germination behavior of mungbean (BARI Mung-6 and BU-4) under salt stress conditions. The whole experiment was divided intothree experiments.In first experiment, two mungbean varieties were surface sterilized with 5% Sodium hypochlorite (NaOCl) solution, soaked in water and mannitol (2%, 4%, 6%, and 8%) for 12 hours and dry seed used as control. The highest total germination(89.99%), germination index(48.64), coefficient of velocity(21.04), energy of emergence(94.99%) and vigor index(157.00) were obtain from seeds primed in 6% mannitol for BARI Mung-6 compare to total germination (85.21%), germination index (46.61),coefficient of velocity (20.21), energy of emergence (87.88 %) and vigor index (123.30), respectively was obtained in 2% mannitol solutionfor BU-4. In second experiment, BARI Mung-6 was primed in 0, 6, 9, 12, 15, and 18 hours under both 6% mannitol solution and distilled water, respectively. Priming time 6 hours with 6% mannitol showed the best result for increasing the effectiveness in inducing salt tolerance in comparison to 6 hours distilled water priming time. In the final experiment, seeds were primed with distilled water and 6% mannitol for 6 hours; dry seed used as control and were exposed to 0, 50, 100, 150, and 200 mMNaCl induced salt stress conditions in Petri dishes. Priming with mannitol followed by water were more effective than the control seed in inducing salt tolerance of mungbean cultivars owing to enhanced germination and growth parameters under salt stress condition. From the results of the study, it was observed that seeds primed with 6% mannitol for 6 hours showed the best result in comparison to water primed seed and dry seed.
USE OF SOME CHEMICALS AND NON-CHEMICAL METHODS FOR THE MANAGEMENT OF RED PUMKIN BEETLE, AUL4COPHORA FOVEICOLLIS (LUCAS) ATTACKING WHITE GOURD.
(Department of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207, 2007-06) ASADUZZAMAN, MD.
An experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Dhaka during the period of March to August, 2008 to evaluate the effectiveness of some chemicals and non-chemical methods for the management of red pumpkin beetle, Aulacophora foveicollis (Lucas) in white gourd. The experiment comprised of 7 treatments with 3 chemical insecticides (cypermethrin 10EC, chlorpyriphos 20EC, cartap 50SP), 3 non-chemical methods (viz, mosquito net bather at seedling stage, application of ash, hand collection and destruction of adult beetle) and an untreated control. Among the 3 chemicals, cypermethrin IOEC was Ibund as the most effective insecticide in reducing the beetle population (88.20%) as well as in minimizing the percent leaf area damage (17.08%) and increasing fruit length (23.62%), diameter of fruit (50.75%) and yield (43.20 %) of white gourd. Application of ash at 7 days interval showed superior performance against the beetle among the nonchemical methods. Considering all 7 treatments, application of cypermethrin I OEC was the most effective for the management of red pumpkin beetle followed by application of ash, ehiorpyriphos, cartap, hand collection and destruction of adult beetle and mosquito net barrier at seedling stage respectively.