8-2-8 COMPARING MODERN VARIETIES OF WHITE MAIZE WITH LOCAL RACES: EAR CHARACTERS


COMPARING MODERN VARIETIES OF WHITE MAIZE WITH LOCAL RACES: EAR CHARACTERS

Md. Jafar Ullah*, M. M. Islam, Kaniz Fatima, M. S. Mahmud, Jamilur Rahman and S. Akhter
*Corresponding author: jafarullahsau@gmail.com

Abstract
Two experiments were carried out, one initiating in Feb 05 with three modern white maize varieties (plough-01, plough-02 and Suvra) and the another with five local land races (red, black, yellow, purple and white) under two consecutive sowing dates (March 5 and 20) of 2015 at Sher-e-Bangla Agricultural university in Bangladesh to evaluate and compare cob characters. Across the trials the cob length, cob circumference, length of the vacant ear tip, number of seed rows and seeds per cob respectively were in the range of 8.66-20.11, 8.93-19.11, 2.6-8.26 cm, 8.0-16.2 and 132-486. Plough 201 (20.11 cm) produced the longest while the later sown local ‘black’ produced the shortest cobs (8.66 cm).  Plough 201 had the highest number of seed per cob (486), while Suvra had the highest seed rows (14) and the least number of seeds per cob (346). Across and among the local landraces the early sown crops had higher values in all the parameters of cob. The thickest cobs (14.56 cm circumference) were found in the early sown local white while more number of seeds per cob was seen in the early sown local black (259). Across the trials, the dry weights in cobs, seed, shell and husk ranged in 12.77-68.96, 1.64-55.76, 4.34-8.65 and 3.2-6.86 g respectively. The highest weight of cob was obtained with Suvra (68.96 g) and that of the seed in both Plough-202 and Suvra (54.21 and 55.76 g respectively). However, Suvra had the maximum shell and husk dry weight (6.8 and 6.4 g respectively). The dry weight per cob of the local maize was in a range of 21.95 to 28.90 g. The early sown local black and local purple had identical showing significantly higher cob dry weights (38.6-39.51 g) than other local landraces.



Keywords: local landraces of maize, modern maize, hybrid, nutrition, yield, vegetative growth

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8-2-7 EFFICACY OF SOME IPM PACKAGE AGAINST RED PUMPKIN BEETLE AND FRUIT FLY ON SWEET GOURD


EFFICACY OF SOME IPM PACKAGE AGAINST RED PUMPKIN BEETLE AND FRUIT FLY ON SWEET GOURD

Tahmina Akter*, Rifat Naznin Munni and Redwanul  Haque
*Corresponding author’s email: tahmina_sauento@yahoo.com                                                  

Abstract

The research experiment was conducted to efficacy of some IPM package against Red pumpkin beetle and fruit fly on sweet gourd during (October-May) of 2015-2016. The experiment consisted of five IPM package (T1-Applying Cultural and Mechanical control method at 7 days interval, T2- Applying Mechanical control method at 7 days interval + using pheromone trap, T3-Applying Cultural control method and spraying Suntaf 50 SP @ 1.5 gm per liter of water at 7 days interval, T4-Applying Mechanical control method and spraying Sumialpha 5EC @ 1.0 ml per liter of water at 7 days interval, T5-Combination of Chemical (Sevin 85 SP @ 1.5 gm in 1 liter of water), Cultural and field sanitation at 7 days interval) along with one control (T6-Untreated). At the vegetative and reproductive stage of sweet gourd, T5 showed least infestation of beetle over others (64.12%). The greatest infestation was shown in T6.  At the reproductive stage, the highest number of fruit fly were recorded (13.67) from T6, whereas the lowest (1.33) and the least percent fruit infestation over control were recorded from T2. The highest weight of single fruit of sweet gourd (1050 g) were recorded in T5 and the lowest (898 g) was recorded in T6.

Key Words: Sweet gourd, Red pumpkin beetle, Aulacophora foveicollis; fruit fly, Bactrocera cucurbitae ; IPM package.

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8-2-6 PERFORMANCE OF THREE HEAT TOLERANT ONION VARIETIES AS INFLUENCED BY POTASSIUM FERTILIZER


PERFORMANCE OF THREE HEAT TOLERANT ONION VARIETIES AS INFLUENCED BY POTASSIUM FERTILIZER
J. Fardos, T Mostarin, N. Islam, S. K. Pramanik, I. J. Banny
*Corresponding author, Email:jannatulfardossbku@gmail.com

Abstract
An experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from March to June, 2016. The treatment consisted of two factors: Factor A: Three heat tolerant variety. viz; V1: KSP-1700, V2: KSP-176, and V3: KSP-30.  Factor B: Four levels of potassium fertilizer. viz;  F0: (control); F1: 80 kg K/ha; F2: 120 kg K/ha and F3: 160 kg K/ha. These three varieties performed better with proper management of potassium fertilizers on plant height, single bulb weight, fresh foliage weight, yield plot-1 and yield ha-1. The highest yield ha-1 (25.01 t) was recorded from V1K2 treatment combination.

Key words: Heat tolerant onion, Variety, Potassium fertilizer, Growth, Yield


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8-2-5 EFFECT OF DIFFERENT WEED CONTROL METHODS ON THE YIELD OF TRANSPLANTED AMAN RICE VARIETIES


EFFECT OF DIFFERENT WEED CONTROL METHODS ON THE YIELD OF TRANSPLANTED AMAN RICE VARIETIES

Tania Sharmin, Mst. Rifat Jahan, Md. Jafar Ullah and H.M.M. Tariq Hossain*
*Corresponding author: Email-hmtariq@yahoo.com


Abstract
A field experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during August to December, 2013 in T. aman season with a view to find out the performance of two transplanted aman rice varieties BRRI dhan56 and BRRI dhan57 under different weed control methods; viz. chemical herbicide Rifit 50EC (Pretilachor 500 g L-1) @ 1 L/ha (W1), polythene paper (W2), stale seedbed (W3), one hand weeding at 20 DAT (W4), two hand weedings at 20 and 40 DAT respectively (W5) and no weeding (control) (W6) using split plot design. Eighteen different weed species infested the field among which Cyperus michelianus (36.73%), Cyperus esculentus (17.31%) at 30 DAT; Cyperus esculentus (25.13%) Alternanthera sessilis (21.53%) and Cyperus difformis (15.79%) at 60 DAT, Fimbristylis miliaceae (19.50%) at 90 DAT were dominant. Two hand weedings at 20 and 40 DAT (W5) proved the highest weed control efficiency showing 89.90% at 30 DAT, 59.74% at 60 DAT and 78.85% at 90 DAT. BRRI dhan56 produced higher (3.70 t ha-1) grain yield when two times weeding were performed at 20 and 40 DAT. This variety also produced the longest panicle length (23.39 cm), 1000-grain weight (23.12 g), grain yield (3.14 t ha1), straw yield (5.16 t ha-1), biological yield (8.90 t ha-1) and harvest index (35.08%) which were better than those of the BRRI dhan57. Economic analysis of the weed control parameters showed that the highest Benefit Cost Ratio, BCR  (1.92) was recorded from the chemical herbicide Rifit 500EC weed control. While the two hand weeding, stale seed bed and one hand weeding produced 1.79, 1.69 and 1.48 BCR respectively.

Key words: Transplanted aman rice, weed control


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8-2-4 POTATO FARMERS’ POST-HARVEST PROBLEMS IN JOYPURHAT DISTRICT OF BANGLADESH


POTATO FARMERS’ POST-HARVEST PROBLEMS IN JOYPURHAT DISTRICT OF BANGLADESH
M.H. Kabir, M.J. Azad*, M.M. Rahman, M.M. Alam and M.Z. Haque
*Corresponding author; E-mail: javed.aeis@yahoo.com

Abstract

Post-harvest problem is one of the major factors to cause a measurable quantitative and qualitative loss in potato cultivation. The study investigated the extent of post-harvest problems of potato farmers. Data were collected from 94 potato farmers of Kalai Upazila (Sub district) under Joypurhat district I Bangladesh during the period from November 05 to December 04, 2016. Descriptive statistics, and multiple regression were used for analysis. The majority of the potato farmers (72.3 %) experienced medium post-harvest problems. Education, distance to the market, distance to the cold storage facility and availability of market information were significant and explained to be 47.3 percent of the variations in post-harvest problems. Policy makers should address these factors as a major step in reducing post-harvest loss of potato in the district.

Key words: Post-harvest, problems, potato cultivation, Bangladesh



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J. Expt. Biosci.8(2) July 2017

8-3-3 POPULATION EMERGED AND DAMAGE ASSESSMENT OF DIFFERENT STORED GRAINS BY ANGOUMOIS GRAIN MOTH AND SITOTROGA CEREALLELA (OLIVIER)


POPULATION EMERGED AND DAMAGE ASSESSMENT OF DIFFERENT STORED GRAINS BY ANGOUMOIS GRAIN MOTH AND SITOTROGA CEREALLELA (OLIVIER)

Tahmina Akter*, Rupali Khatun, Ayesha Akter and Md. Mahmudul Hasan Sohel
                 *Corresponding author’s e-mail: tahmina_sauento@yahoo.com
                                                       
                                                       
Abstract
Experiments on population emerged and damage assessment of three stored cereals, such as rice, wheat and maize by angoumois grain moth, Sitotroga cerealella (Olivier) were conducted in the Entomology laboratory, Sher-e-Bangla Agricultural University, Bangladesh during the period from May to December, 2014. Adults emerged of angoumois grain moth for 1st, 2nd and 3rd generations varied significantly for different stored grains. The highest number of adults (81.75 - 406.75) emerged in wheat grains, while the lowest (9.50- 48.50) in rice. In maize, number of adults emerged 43.75 to 133.00 at 1st to 3rd generation. Maximum infestations were recorded in wheat grains and the lowest is rice for 43.50% to 8.70% in three generations of the insect. At the different generations the highest weight loss of grain was occurred in wheat and the lowest in rice. In wheat, weight loss ranged from 43.50 to 14.29% in 3rd to 1st generation. For rice it was 21.63 to 10.15%. For maize it was 35.25 to 13.51%. Percent of infestation of the stored cereals was always positively correlated with percent of weight loss.

Key Words: Angoumois grain Moth (Sitotroga cerealella), damage assessment, stored grain, weight loss


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J. Expt. Biosci.8(2) July 2017

8-2-2 PRODUCTIVITY AND PROFITABILITY OF TOMATO AS INFLUENCED BY MICRONUTRIENTS



PRODUCTIVITY AND PROFITABILITY OF TOMATO AS INFLUENCED BY MICRONUTRIENTS
I.J. Banny*, T. Mostarin, M.H.Kabir, K.Khatun and J.Fardos
*Corresponding author, Email: ishratbonhi5@gmail.com

Abstract

An experiment was conducted in the Horticultural Farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during October 2015 to March 2016 to find out the productivity and profitability of tomato as influenced by micronutrients. This was a single factor experiment and consisted of 11 treatments which were the combination of different doses of micronutrients: T0: ( Zn0 B0 Cu0 kg ha-1), T1: (Zn0 B4 Cu2 kg ha-1), T2: (Zn4 B4 Cu2 kg ha-1), T3: (Zn6 B4 Cu2 kg ha-1), T4: (Zn8 B4 Cu2 kg ha-1), T5: (Zn8 B0 Cu2 kg ha-1), T6: (Zn6 B2 Cu0 kg ha-1), T7: (Zn6 B6 Cu2 kg ha-1), T8: (Zn6 B4 Cu0 kg ha-1), T9: (Zn6 B4 Cu1 kg ha-1 ) and T10: (Zn6 B4 Cu3 kg ha-1). Recommended doses of cowdung, Urea, TSP and MP were also used as basal dose. The experiment was laid out in Randomized Complete Block Design with 3 replications. Maximum yield hectare-1 (96.00 t/ha), were recorded from the T3 treatment while the minimum values of all observation were recorded from the T0 that is control treatment. Calculating economic point of view, the treatment T3 gave the highest economic return (Tk. 674944 ha-1) with 2.37 benefit cost ratio.

Key word: Tomato, Micronutrient, Productivity and Profitability



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J. Expt. Biosci.8(2) July 2017

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