http://103.7.193.12:8080/xmlui/handle/123456789/131 2026-06-09T23:50:04Z 2026-06-09T23:50:04Z SARKAR, MD. NUR-A-ALAM http://103.7.193.12:8080/xmlui/handle/123456789/2149 2026-06-09T08:23:44Z 2022-06-01T00:00:00Z

SCREENING OF AROMATIC RICE CULTIVARS BASED ON PHYSIO-CHEMICAL PROPERTIES IN RELATION TO DROUGHT STRESS SARKAR, MD. NUR-A-ALAM The investigations comprised four experiments which were carried out during 2017 to 2020 to screen the morpho-physiological behavior and assessment of drought tolerance in Bangladeshi local aromatic rice cultivars at Agronomy Research Field-1, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh. There were 65 local aromatic rice cultivars were tested in the 1st experiment for screening out the best performance on the basis of yield performance. Among them 11 aromatic rice cultivars were selected for experiment number 2. The 2nd experiment comprised of two factors Factor A: 11 rice cultivars and Factor B: 2 drought stress level viz., T0= no drought stress (Control) and T1= 40-45% field capacity. Drought stress significantly reduced the growth yield and yield contributing features of tested aromatic cultivars. But the extent of reduction is varied with genotypic difference. The results depicted that, at 40-45% field capacity Chinigura (Red) produced maximum grain yield (56.47 g hill-1) followed by Kalijira (54.63 g hill-1) and Kataribhog (53.89 g hill-1). Kataribhog philipine attained maximum relative water content but Chinigura (Red), Kataribhog and Kalijira also significantly performed better. Kalijira represent the most aroma content (8.56). The single factor 3rd experiment consisted with seven aromatic rice cultivars viz., V1= Chinigura (Red), V2= Kataribhog, V3= Kalijira, V4= Kataribhog (Jata), V5= Radhunipagal, V6= Bolder and V7= Kataribhog philipine. The findings revealed that Chinigura (Red), Kataribhog and Kalijira performed better where Radhunipagal and Kataribhog (Jata) showed the intermediate results and finally Kataribhog philipine and Bolder performed poor in the context of phenological and yield traits analysis with some exceptions. Chinigura (Red) produced the more grain hill-1 (65.66 g) and Kataribhog philipine produced the less (39.55 g). The 4th experiment comprised of two factors; Factor A: 7 rice cultivars viz., V1= Chinigura (Red), V2= Kataribhog, V3= Kalijira, V4= Kataribhog (Jata), V5= Radhunipagal, V6= Bolder and V7= Kataribhog philipine and Factor B: 2 irrigation interval viz., T0= Continuous flooding (Control) and T1= irrigation at 5 days interval, T2= irrigation at 10 days interval, T3= irrigation at 15 days interval, T4= irrigation at 20 days interval and T5= irrigation at 25 days interval. Irrigation interval had significant effect on the plant characteristics of aromatic rice. Continuous flooding and irrigation at 5 days interval performed best for most of the observed characters and irrigation at 25 days interval plant did not survive of all tested cultivars. Interaction of Chinigura (Red) and irrigation at 5 days interval produced the maximum grain yield hill-1 (65.15 g) followed by interaction of Chinigura (Red) and continuous flooding (64.53 g). The interactions of Kataribhog and Kalijira with irrigation at 5 days interval, respectively also statistically significant for grain yield. Considering the abiotic stress (especially drought) condition and limited resources of irrigation water, Chinigura (Red) along with 5 days intermittent irrigation could be best water saving production package under moisture stress prone area of Bangladesh. SCREENING OF AROMATIC RICE CULTIVARS BASED ON PHYSIO-CHEMICAL PROPERTIES IN RELATION TO DROUGHT STRESS; A Dissertation DOCTOR OF PHILOSOPHY By MD. NUR-A-ALAM SARKAR, Reg. No. 1705198, DEPARTMENT OF AGRONOMY, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY DINAJPUR-5200; JUNE 2022.

2022-06-01T00:00:00Z http://103.7.193.12:8080/xmlui/handle/123456789/1911 2025-10-26T06:51:58Z 2011-01-01T00:00:00Z

Development of cell-based assay to investigate relationships between cell cycle and programmed cell death

2011-01-01T00:00:00Z RAHMAN, MOHAMMAD ATAUR http://103.7.193.12:8080/xmlui/handle/123456789/144 2022-04-18T08:07:41Z 2005-03-01T00:00:00Z

EFFECT OF SULPHUR, CALCIUM, MAGNESIUM AND BRADYRHIZOBIUM FERTILIZATION ON THE SEED n QUALITY OF GROUNDNUT RAHMAN, MOHAMMAD ATAUR The study aimed at determining the effect of fertilizer elements sulphur, calcium, magnesium and Brodyrhizobium fertilization in improving the quality of groundnut seed, its storage performance by maintaining three loved of initial moisture content of seed and storing in two type of storage edits The field experiment was conducted in 1997-98 and 1998-99 in the Oil Seed Division, BARI Joydebpur, Gazipur and the laboratory experiments also were conducted in the laboratory of the same division. Results revealed that among the fertilizing elements sulphur and calcium affected significantly all the yield attributes and yield while magnesium affected the yield and some of the major yield attributes,and Bradyrhizobium fertilization affected the yield significantly, but the yield attributes fail to effect significantly. In storage,optimum doses of sulphur, calcium, and magnesium checked the deterioration of both the germination percentage and vigour index of stored seed than untreated sample but the inoculation failed to check the deterioration of groundnut. Storage container especially the polythene bags helped to maintain the storage life of seed. Seeds with 60kg S/ha, 150kg Ca/ha and 10kg Mg/ha stored in polythene bags retained the germination percentage up 1s denial level of ISTA (ranging between 70 to 80 %) for 5 months efficiently, Least initial moisture content of seed (7.25%) with the above doses of fertilizer element also played a vital role in keeping the quality of stored seed for up to 5 months. Results in the-respect of yield of pod, storage performance and percentage of germination and vigour index indicated that groundnut seed treated with fertilizer element during production and stored in polythene bags can retained better quality seeds, provided seeds were dried to a safe moisture level of 7.25% to 8.46%. Groundnut (Arachis hypogaea L.) is an important warm-season oil seed crop and food grain legume. Groundnut is one of the most important oil producing crop, in Bangladesh and ranking the second position in area and production. Groundnut is grown on an area of 31283.40 hectares with a production of 39955 metric ton in the year 1999-2000. Bangladesh produces only about 19 % of the total requirement of edible oil though it has the optimum agro-climatic condition for successful cultivation of crop. (BARI, 1974). Groundnuts are grown on an estimated 19 million ha in 82 countries for use as food, oil and high protein meal. (Wyene and Gregory, 1981). Groundnut seed contains 45-50% oil, 25-30% protein and 20% carbohydrate besides vitamin B and E (Raddy and Kaul, 1986). The most important use of groundnut is cooking oil and it is also used as food by roasting. Ample scope exists for expanding groundnut cultivation without affecting the major crops in the vast char and haor lands where no important economic crop can be grown except sweet potato and watermelon, groundnut cultivation can be highly profitable. Also per hectare productivity of groundnut can be increased manifold through using better varieties and improved management practices. Groundnut seeds collected in the previous rabi seasons are commonly used in kharif season for producing seed in the “next rabi season as the seeds loses its viability with in 2-3 months under farm level storage condition. Kharif cultivation of groundnut is generally done on a limited scale for seed production for rabi season.

2005-03-01T00:00:00Z HASAN, MD. ALAMGIR http://103.7.193.12:8080/xmlui/handle/123456789/132 2022-04-18T06:31:20Z 2007-02-01T00:00:00Z

VEGETABLE PRODUCTION ON THE AILS OF RICE FIELD AND ITS EFFECTS ON RICE CROP HASAN, MD. ALAMGIR Seven experiments were conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh for two consecutive years in Boro and Aman seasons starting from January 2004 through December 2005 with a view to observing the performance of different species of trellis-grown vegetable on the ails of rice field with regard to both productivity and profitability. The results showed that vegetable crops on the trellis had reduced grain yield of rice up to a maximum of 25%, although the added vegetable yields were of major concern. Ail grown bottle gourd gave the highest vegetable yield in all the experiments for both the seasons followed by white gourd. Ail cultivation of yard long bean and snake gourd were moderately suitable and others were found less suitable. The bigger width of trellis (W3) produced the highest grain yield of rice and the lowest grain yield was received from smaller width of trellis (W,). On the other hand, rice + bottle gourd and rice + white gourd crop combinations produced their superiority with the highest rice equivalent yields compared to sole rice cropping. Light intensity measurement showed that the incoming solar radiation ranging from 7.0% to 13.0% only was intercepted by different trellis-grown vegetable crop combination treatments. Among nature of trellises, except flat trellis, the differences between treatments were not much remarkable. T-trellis with 180 cm breadth appeared as the best. When the breadth of T-trellis extended (240 cm), it gave the lowest grain yield of rice. There was compensation in vegetable yield with respect to nature of trellis. Regarding vegetable yield, ‘T-trellis and flat trellis (180 cm breadth) produced the highest vegetable yields. As a result, these two types of trellises were found equally good in terms of producing higher rice equivalent yields. The results also showed that 50 to 60 cm width of ails were adequate to grow all the vegetable crops successfully under study along with rice crop. It appears that root growth and development of vegetable crops were much better in broader ails than that of narrower ones. Rice cultivation alone, because of its high input cost, is comparatively less profitable (BCR = 1.77). On the contrary, rice cultivation may be made profitable up to 400% (BCR = 4.00) by simultaneously growing bottle gourd as vegetable on the ails of rice plots. Rice (Oryza sativa L.) is the heart rhythm of Bangladesh agriculture, as it is the staple food crop covering 76% of the total land area and it provides the ultimate entity of most of the people. The geographical and agroclimatic conditions of Bangladesh are favourable for rice cultivation. So, the cropping patterns prevailing in the country are dominated by rice. Rice is grown here round the year, in Aus, Aman and Boro seasons. Rice holds the area of 10.78 million hectares with a production of 25.19 million tons of grain (BBS, 2004).

2007-02-01T00:00:00Z