http://103.7.193.12:8080/xmlui/handle/123456789/106 Fri, 17 Apr 2026 16:55:33 GMT 2026-04-17T16:55:33Z http://103.7.193.12:8080/xmlui/handle/123456789/1917 EFFECT OF SUPPLEMENTAL IRRIGATION AND MANURING ON PERFORMANCE OF BRRI dhan103 UNDER TERMINAL DROUGHT CONDITION IN AMAN SEASON RAHMAN, MD. TAUFIQUR An experiment was conducted at Crop Physiology and Ecology Research Field, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during August to November 2023 to find out the effect of supplemental irrigation and manuring on performance of BRRI dhan103 under terminal drought condition in Aman season. Rice variety BRRI dhan103 was used as planting material, The experiment was laid out in randomized complete block design with seven treatments and three replications. The treatments were, T1: Rainfed (control), T2: One supplemental irrigation at 80 DAT, T3: Two supplemental irrigation at 70 DAT and 80 DAT, T4: Additional 5 t ha-1 poultry compost, T5: Additional 10 t ha-1 poultry compost, T6: Additional 2.5 t ha-1 biochar and T7: Additional 5 t ha-1 biochar. The total number of plots was 21 and the size of unit plot was 2 m × 2 m. The performances of Aman rice in relation to plant height (cm), tillers hill-1, leaves hill-1, SPAD values, shoot and root dry weight as well as yield and yield contributing parameters such as panicles hill-1, filled grains panicle-1, grain weight panicle-1, thousand grain yield (g) and grain yield hill-1 were measured. All the growth parameters such as plant height, tillers hill-1, leaves hill-1, leaf SPAD value at 50 70 and 90 days after transplanting were enhanced significantly due to supplemental irrigation and manuring treatments. Yield attributes (panicles hill-1, filled grains panicle-1, thousand grain weight and grain yield hill-1 as well as grain yield m-2 of BRRI dhan103 was increased due to different supplemental irrigation and manuring treatments compared to rainfed control. The increment in grain yield m-2 was 7.27% in one supplemental irrigation, 18.41% in two supplemental irrigations, 27.04% in additional application of 10 t ha-1poultry compost, 15% in additional application of 5 t ha-1 poultry compost, 25.91% in additional application of 5 t ha-1 biochar and 11.81% in additional application of 2.5 t ha-1 biochar. The results of the present investigation indicated that growth, yield attributes and yield of BRRI dhan103 was affected due to terminal drought stage in Aman season. Two supplemental irrigations could effectively alleviate the adverse effect of terminal drought stage and additional application of poultry compost both at the rate of 5 and 10 t ha-1 and additional application of biochar at the rate of 5 t ha-1 was found effective for alleviating the adverse effect of terminal drought stage in T. Aman. EFFECT OF SUPPLEMENTAL IRRIGATION AND MANURING ON PERFORMANCE OF BRRI dhan103 UNDER TERMINAL DROUGHT CONDITION IN AMAN SEASON; A Thesis By MD. TAUFIQUR RAHMAN, Student No. 1601142, MASTER OF SCIENCE IN CROP PHYSIOLOGY AND ECOLOGY, DEPARTMENT OF CROP PHYSIOLOGY AND ECOLOGY, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY DINAJPUR-5200, BANGLADESH DECEMBER 2023 Fri, 01 Dec 2023 00:00:00 GMT http://103.7.193.12:8080/xmlui/handle/123456789/1917 2023-12-01T00:00:00Z http://103.7.193.12:8080/xmlui/handle/123456789/1870 Nutrio-physiological studies on saline and alkaline toxicities and tolerance in Foxtail millet (Sefaria italica L.) and Proso millet (Panicum miliaceum L.) ISLAM, MD. SOHIDUL Nutrio-physiological studies on saline and alkaline toxicities and tolerance in Foxtail millet (Sefaria italica L.) and Proso millet (Panicum miliaceum L.) MD. SOHIDUL ISLAM DEPARTMENT OF ENVIRONMENTAL DYNAMICS AND MANAGEMENT GRADUATE SCHOOL OF BIOSPHERE SCIENCE HIROSHIMA UNIVERSITY MARCH 2012 Thu, 01 Mar 2012 00:00:00 GMT http://103.7.193.12:8080/xmlui/handle/123456789/1870 2012-03-01T00:00:00Z http://103.7.193.12:8080/xmlui/handle/123456789/1866 EVALUATION OF PHOTOSYNTHETIC POTENTIAL OF WHEAT GENOTYPES UNDER DROUGHT CONDITION Sikder, Dr. Sripati EVALUATION OF PHOTOSYNTHETIC POTENTIAL OF WHEAT GENOTYPES UNDER DROUGHT CONDITION Post-doctoral Research By Dr. Sripati Sikder B.Sc.Ag. (Hons), MS, PhD Commonwealth Fellow Ref. BDCF-2012-14 Lab of Crop Science School of Biosciences University of Nottingham Sutton Bonington Campus Loughborough, Leicestershire LE12 5RD, United Kingdom Wed, 01 Jan 2014 00:00:00 GMT http://103.7.193.12:8080/xmlui/handle/123456789/1866 2014-01-01T00:00:00Z http://103.7.193.12:8080/xmlui/handle/123456789/1495 EVALUATION OF WHEAT GENOTYPES TO ALLEVIATE THE ADVERSE EFFECT OF SALT STRESS Sultana, Eureka Development of salt tolerant wheat genotypes and/or amelioration of the effect of salt stress are the possible options for utilizing salt affected coastal soil in Bangladesh. In the present investigation, five experiments were carried out during September 2013 to April 2015.To investigate the influence of salinity on germination characters and seedling growth thirty wheat genotypes were tested in petridish under control and saline (15 dS m-1) condition and found that salinity delayed germination and affected seedling growth in different scale in different wheat genotypes. Based on seedling dry weight twenty two wheat genotypes showed more than 0.8 Salt Tolerance Index (STI) and eight genotypes provided less than 0.80 STI. Thirty wheat genotypes were grown in tray containing different levels (Control, 6 and 12 dSm1) of artificially developed saline soil up to 30 days. Emergence index, shoot length, root length and seedling dry weight were found to be reduced in different scale with the increment of soil salinity levels. Eight wheat genotypes showed more than 0.5 STI and twenty two genotypes provided less than 0.50 STI at moderate salinity level. At higher salinity level only five genotypes showed more than 0.3 STI and twenty five genotypes provided less than 0.3. Three comparatively salt tolerant (Sourav, Shatabdi and BAW 1186) and one salt sensitive (BAW 1199) wheat genotypes selected from experiment 1 and 2 based on seedling dry weight were grown in pot under different artificially developed soil salinity levels (Control, 6 dS m-1, 8 dS m-1 and 10 dS m1) to observe the sensitivity of physiological traits resulting reduced grain yield under saline condition. Wheat genotype Sourav and ix Shatabdi accumulated greater quantity of proline, lesser amount of Na+, greater amount of K+ and maintained greater K+ to Na+ ratio under saline condition than BAW 1186 and BAW 1199. Grain yield per plant was reduced with the increment of soil salinity in all the wheat genotypes where Shatabdi affected lesser than others wheat genotypes. Different seed priming treatments were found to be effective to improve speed of germination and early seedling growth of different wheat genotypes (Shatabdi, Sourav and BARI Gom 26) under saline condition. Based on seedling dry weight hydropriming, osmopriming with KCl and osmopriming with NaCl were found to be effective for Sourav, hormonal priming with salicylic acid, osmopriming with CaCl2 and osmopriming with KCl were found effective for Shatabdi and all seed priming treatments except hormonal priming with salicylic acid were found effective for BARI Gom 26.These three wheat genotypes were tested in a pot experiment with four nutrient management treatments and only extra K+ management was found effective to improve grain yield per plant in Shatabdi. The overall results indicated that based on physiological tolerance and agronomic traits Shatabdi was found to be more salt tolerant than all other wheat genotypes tested in the present study and extra K+ management could improve grain yield per plant in only in Shatabdi. A Dissertation Submitted to Department of Crop Physiology and Ecology Hajee Mohammad Danesh Science and Technology University, Dinajpur In partial fulfillment of the requirement for the degree of DOCTOR OF PHILOSOPHY By Eureka Sultana Student No. 0905049 Wed, 01 Jun 2016 00:00:00 GMT http://103.7.193.12:8080/xmlui/handle/123456789/1495 2016-06-01T00:00:00Z