1-1-7 STUDY ON FATTY ACIDS PROFILE AND CHEMICAL CONSTANTS OF SOME OIL SEEDS IN BANGLADESH



Authors: Shafiqul Islam, Nusrat Jahan Shely, Ashrafi Hossain and Kamal Uddin Ahmed*
*Corresponding author’s Email:  kuahmedsau190606@yahoo.com



Abstract
Six mustard and rapeseed (Brassica spp.) samples including four cultivars-BARI Sarisha-6, BARI Sarisha-9, Tori-7 and SAU-2, and two lines-BARI Sarisha-9 x BARI Sarisha-6 and Tori-7 x BARI Sarisha-6, were selected to evaluate fatty acids profile and chemical constants. Results indicated that the oil content of different released and line cultivars of mustard and rapeseed varied from 38.74% to 40.55%. BARI Sarisha-9 (540.3 kcal/g) showed the highest gross energy. The highest saponification value (168.8) and iodine value (110.2) were recorded from Tori-7 while the highest acid value was recorded from Tori-7 X BARI Sarisha-6 (1.610). Erucic acid was in the range of 41.11 – 50.67%, oleic acid was the highest in Tori-7 (18.56%) while BARI Sarisha-9 contained the highest unsaturated linoleic (17.75%) and linolenic (15.83%) acids. Moreover, palmitic acid, stearic acid and arachidic acid were also present in samples in small amount. Substantial genetic variability exists for lipid profile and chemical constants in cultivars and lines. These findings could be utilized for future strategy for the nutritionist, health advisors and breeders.

Keywords: Mustard; Rapeseed, Fatty acids profile, Chemical constants; Gross energy


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11-1-6 EVALUATING THE EFFECTIVENESS OF BOTANICALS FOR ECO-FRIENDLY MANAGEMENT OF SOME INSECT PESTS OF CABBAGE


Authors:  K. M. A. Al-Mahmud, M. R. Ali, T. Akter* and M. Khatun

*Corresponding author’s Email: tahmina_sauento@yahoo.com

Abstract

An experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to evaluate some management practices applied against major insect pests of cabbage. The experiment was laid out in Randomized Complete Block Design replicated with three times. The management practices were six botanicals, two synthetic insecticides and one untreated control such as T1 (spraying of Neem leaf extract @ 3.0 ml/L of water at 7 days interval); T2 (Neem seed kernel extract @ 3.0 ml/L of water at 7 days interval); T3 (Neem oil @ 3.0 ml/L of water at 7 days interval); T4 (Garlic extract @ 3.0 ml/L of water at 7 days interval); T5 (Thuza leaf extract @ 3.0 ml/L of water at 7 days interval); T6 (Sevin 85 WP @ 2.0 g/L of water at 7 days interval); T7 (Admire 200 SL @ 1.0 ml/L of water at 7 days interval); T8 (Phytoclean @ 3.0 ml/L of water at 7 days interval) and T9 (untreated control). Among the management practices, the lowest mean infestation of cabbage leaf by semi-looper (2.0 leaves/5 plants), and cabbage caterpillar (1.95 leaves/5 plants) was found in T7 that reduce highest leaf infestation over control (85.72%, 86.02% and 89.66%, respectively); whereas the highest infestation by semi-looper(14.01 leaves/5 plants), and cabbage caterpillar (13.93 leaves/5 plants) was found in T9. Among the botanicals the lowest infestation of cabbage leaf by semi-looper(3.76 leaves/5 plants) and cabbage caterpillar (3.33 leaves/5 plants) was found in T3. No cutworm infestation (0.0) was recorded at 3 days after transplanting (DAT) of cabbage seedlings and the cutworm infestation was initiated at 5 DAT. The maximum infestation (2.0 to 3.0 infested seedlings/plot) was recorded at 7 DAT, and then infestation declined gradually with the increase of time. But no infestation was recorded at 13 DAT. The lowest cabbage head infestation was recorded (6.08%) in T7, that gave the highest yield of cabbage (19.96 t/ha) followed by T3(19.71 t/ha). The cutworm infestation on cabbage seedlings was ranged from 47.62 to 57.14% in the field, where the highest infestation was recorded in T5, which statistically similar with all other treatments. On the contrary, the lowest cutworm infestation (47.62%) was recorded in T2 and T6. Therefore, that management practice particularly for cutworm should be applied between 3 to 13 DAT of cabbage seedlings in the field.

Keywords: Botanicals, effectiveness, eco-friendly management, insect pests, cabbage.



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J. Expt. Biosci.11(1) January 2020



11-1-5 EFFECT OF ALTERNATE FURROW IRRIGATION AND DIFFERENT FERTILIZER MANAGEMENT ON THE YIELD PERFORMANCE OF BABY CORN


Authors: Most. Sakiara Islam, Md. Jafar Ullah, Nahida Sultana, Muslima Jahan Runia and Nabila Hasan

*Corresponding author’s Email: sakiislam28@yahoo.com

Abstract

An experiment was carried out at Sher-e-Bangla Agricultural University, Dhaka in the tenure of from January to March, 2018 to evaluate the effect of alternate furrow irrigation and varying fertilizer management on the yield performance of baby corn. Two irrigation methods viz. IC (Conventional irrigation) and IA (Alternate furrow irrigation); and six fertilizer managements viz. F0 (No fertilizer application; control), F1 (Recommended doses of fertilizer), F2 (125% of recommended doses of fertilizer), F3 (75% of the recommended doses of fertilizer), F4 (50% of the recommended doses of fertilizer) and F5 (25% of recommended doses of fertilizer) were tested. Both the individual and that of the combined effects of the treatments varied significantly in respect of most of the parameters studied. In respect of combined effect of irrigation and fertilizer, the highest cob diameter (7.03 cm), cob length (18.00 cm), fresh single cob weight with husk at harvest (46.07 g), dry weight of single cob without husk (7.74 g) and fresh cob yield without husk (2.40 t ha-1) were observed from the combination treatment IAF1 whereas, the respective lowest values were found from treatment combination of ICF0.

Keywords: Alternate furrow irrigation, baby corn, fertilizer.



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J. Expt. Biosci.11(1) January 2020



11-1-4 PLANT TRAITS OF BABY CORN AS INFLUENCED BY ALTERNATE FURROW IRRIGATION AND DIFFERENT FERTILIZER MANAGEMENTS


Authors: Most. Sakiara Islam, Md. Jafar Ullah, Nahida Sultana, Muslima Jahan Runia and Nurjahan Shithi

*Corresponding author’s Email: sakiislam28@yahoo.com

Abstract

The present investigation was conducted at Sher-e-Bangla Agricultural University, Dhaka during the period from January to March, 2018 to study the effect of alternate furrow irrigation and varying fertilizer management on the yield performance of baby corn. Two irrigation treatments viz. IC (Conventional irrigation) and IA (Alternate furrow irrigation); and six fertilizer managements viz. F0 (No fertilizer application; control), F1 (Recommended doses of fertilizer), F2 (125% of recommended doses of fertilizer), F3 (75% of the recommended doses of fertilizer), F4 (50% of the recommended doses of fertilizer) and F5 (25% of recommended doses of fertilizer) were considered for treatments of the study. Both the irrigation and fertilizer treatments showed significant variation on most of the studied parameters. In respect of combined effect of irrigation and fertilizer, the highest plant height (222.2 cm), number of leaves plant-1, stem base diameter (2.46 cm), total fresh weight plant-1 at harvest (795.3 g), fresh weight plant-1 at harvest (145.5 g), dry weight plant-1 without husk at harvest (95.67 g), dry weight of 5 cobs with husk (78.05 g), fresh 5 cob weight without husk at harvest (96.01) were observed from the combination treatment IAF1 whereas, the respective lowest values were found from treatment combination of ICF0.

Keywords: Baby corn, Furrow irrigation, Fertilizer management, Plant parameters.


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11-1-3 EFFECT OF POTASSIUM AND MULCHING ON THE GROWTH AND YIELD OF POTATO


Authors: Asma Begum, Md. Hasanuzzaman Akand, Nahida Sultana*, Fariha Afia Bonni and Muslima Jahan Runia

*Corresponding authour’s Email: nsultanasau12@gmail.com


Abstract

The present experiment was undertaken with the aims to investigate the response of potassium fertilizer and mulches on growth and yield of potato in the field condition during the period from November 2017 to March 2018 at Horticultural farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. The variety “Diamant” was used as a test crop. Four levels of potassic fertilizer (KCl) viz. K0: (Control), K1: 110 kg ha-1, K2: 140 kg ha-1, K3: 170 kg ha-1 and three types of mulches viz. M0: (Control), M1: Straw, M2: Black polythene were used for the present study. The experiment was laid out in Randomized Block Design (RCBD) with three replications. Different potassium level showed significant influence on most of the parameters and the treatment. The highest yield (27.20 t ha-1) of potato was obtained in K2 treatment whereas the lowest (12.25 t ha-1) was obtained from K0. Considering the different mulches, the highest yield (24.57 t ha-1) of potato was obtained in M1 and the lowest (17.68 t ha-1) was obtained from the M0 treatment. In terms of the combined effect of potassium and mulching, most of the studied parameters were influenced significantly. The highest yield (31.75 t ha-1) was recorded from the combination treatment of K2M1 whereas the lowest yield (9.74 t ha-1) was found in the combination treatment K0M0. Hence, we summarized that 140 kg ha-1 potassium fertilizer with straw mulch gave the maximum output in terms of yield compared with other treatments.

Keywords: Potassium, Mulching, Potato.

11-1-2 PRESTORAGE SEED HARDENING EFFECTS ON CHEMICAL COMPOSITION OF JUTE SEED


Authors: Md. Nasir Uddin, S. M. Mahbub Ali, Md. Younus Ali, Sabera Akter, Md. Delwar Hossain Sarker and Md. Zablul Tareq*

*Corresponding author: zablulbarj@gmail.com

Abstract

The study was conducted at breeder seed division of Bangladesh Jute Research Institute, Dhaka from September 2018 to January 2019 to determine prestorage hardening effects on chemical composition of jute seed. The experiment was conducted in Complete Randomized Design (CRD) with four replications. The highest total soluble protein (210.6 and 185.2 mg g-1) were obtained in control treatment, while the lowest were (204.3 and 182.0 mg g-1) in treated seeds of capsularis and olitorius seeds, respectively. The highest total free amino acids (32.69 mg g-1 and 24.80 mg g-1) were estimated in treated and the lowest (30.11 mg g -1 and 23.30 mg g -1) from control treatment in capsularis and olitorius seeds, respectively. Total soluble sugar was statistically identical both in treated and control treatment though total soluble sugar was always higher in capsularis than in olitorius seed. Presence of soluble sugar in seed has great implication on seed quality as there was positive correlation between the total soluble sugar content and germination percentage of jute seed which indicated that higher the amount of soluble sugar, higher the germination percentage. Oil content and ash content of jute seed were not significantly influenced by hardening treatments. Among two species of jute higher oil content was observed in olitorius seed than in capsularis seed. On the other hand, ash content was always higher in capsularis than in olitorius.


Keywords: Jute seed, chemical composition, seed treatment.

11-1-1 CHEMICALLY DISINFECTED WHEAT STRAW'S EFFECT ON THE COMPOSITION AND CONTENT OF MINERALS OF OYSTER MUSHROOM (Pleurotus ostreatus)


Authors: Kanij Mohoua Roksana*, Kamal Uddin Ahmed, Md. Nuruddin Mia, Md. Hafizur Rahman, Md. Sajedur Rahman, Lobna Yesmin

*Corresponding Author’s Email: moulybd@gmail.com


Abstract

The effect of chemically disinfected wheat straw on the proximate composition and mineral content of oyster mushrooms (Pleurotus ostreatus) was investigated. Different treatment levels were used in combination with different times (12, 18 and 24 hours) and doses of Formalin (250, 500 or 750 ppm) and Bavistin (75 ppm), and regulation was compared. The highest production in terms of protein in percent (25.71) was obtained in wheat straw processed with Formalin (500 ppm) + Bavistin (75 ppm) for 18 hours. Pleurotus ostreatus grown on wheat straw treated with Formalin (750 ppm) + Bavistin (75 ppm) for 18 hours yielded the highest percentage of crude fiber (21.40), Ca (22.15 mg/100 gm) and Zn (15.10mg/100 gm) content. So, sterilizing wheat straw with Formalin (750 ppm) + Bavistin (75 ppm) for 18 hours may be an economically effective treatment for the nearest compression and the higher mineral oyster mushroom content.


Keywords: Pleurotus ostreatus, Chemical disinfection, Fungicide, Formalin, Bavistin, Substrate, Wheat straw.
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