http://localhost:8080/handle/123456789/2780 2026-04-18T21:08:58Z 2026-04-18T21:08:58Z BHUIYAN, MOHAMMAD SARFUDDIN http://localhost:8080/handle/123456789/2098 2019-10-20T09:45:12Z 2012-07-01T00:00:00Z

AGRONOMIC AND GENETIC PERFORMANCE OF HYBRID MAIZE (Zea mays L.) VARIETIES INFLUENCED BY THREE LEVELS OF IRRIGATION BHUIYAN, MOHAMMAD SARFUDDIN The present piece of research work was carried out at the field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka- 1207. from December 2010 to May 2011 to determine optimum water requirement for the cultivation of hybrid maize varieties. There were two factors in this experiment, a) four hybrid maize varieties: V1 (BAR! Hybrid Maize-5). V2 (Pacific 60), V3 (NK 40) and V4 (Ajanta) and b) three levels of irrigation: 11 = Two irrigations at 25 and 50 DAS, 12 = Three irrigations at 25. 50 and 75 DAS and 13 = Four irrigations at 25, 50, 75 and 100 DAS. respectively. Selected varieties and irrigation levels individually had a few significant effects on the pimit characteristics of maize but had significant effect on yields and yield contributing characters. Almost all the plant and yield contributing characters were significant except days to 6 leaf stage and days to bud initiation stage. The higher yields were recorded in V1 13 (7.92 t ha'), V413 (7.83 t ha') and V213 (7.45 ha') which were statistically identical with V112 (7.40 t hi'), V2I2 (6.87 t ha') and V412 (6.80 ha), respectively. The highest water use efficiency (0.122 t ha4cm 1) was found in V211 treatment combination followed by V111 (0.121 t ha'cm'), V112 (0.120 t hi'cm'). The highest benefit cost ratio (BCR) was obsen'ed (2.37) in both V113 and V112 treatment combination. BAR! Hybrid Maize-S performed better among the four varieties tested in this experiment. Moreover, total average water saving in one hectare land for maize cultivation by adopting 12 irrigation treatment over Ij is 4,49.837 gallons. Among the treatment combinations, V112 (BARI Hybrid Maize-5 with three irrigations at 25. 50 and 75 DAS) was the best combination for maize cultivation. A Thesis Sufimited to the Faculty of Agricufture, Sher-e-Bangla Agricultura University, Dhaka, in partial filfillment of the requirements for the Degree of MASTER OF SCIENCE IN GENETICS AND PLANT BREEDING SEMESTER: JULY-DECEMBER, 2012

2012-07-01T00:00:00Z FARHANA, NAHID http://localhost:8080/handle/123456789/2097 2019-10-20T09:45:55Z 2012-07-01T00:00:00Z

INTERCENOTYPIC VARIATION AMONG ADVANCED LINES OF Brassica rapa FARHANA, NAHID A field experiment was conducted in the experimental field of Genetics and Plant Breeding field laboratory of Sher-e Bangla Agricultural University, Dhaka. Bangladesh during the period of October 2010 to March 2011 to study the inter genotypic variation among advance lines of Brassica rapa. The experiment was carried out to study variability, heritability, genetic advance and genetic advance in percentage of mean, genetic diversity, character associations and direct and indirect effect of different traits on yield. Seeds are sown in the field in Randomized Complete Block Design (RCBD) with three replications. There was a great deal of significant variation for all the characters among the genotypes. Considering genetic parameters high genotypic co-efficient of variation (CCV) was observed for no. of secondary branch, seed yield per plant and seed yield per hectare whereas low GCV was observed for length of siliqua and thousand seed weight. In all cases, phenotypic variances were higher than the genotypic variance. High heritability with high genetic advance in percent of mean was observed for yield per plant indicating that this trait was under additive gene control and selection for genetic improvement for this trait would be effective. The results obtained, showed that seed yield per hectare had highest significant positive correlation with yield per plant. Seed yield per plant had also significant positive correlation with seed per siliqua at genotypic level. Considering group distance and other agronomic performance the inter genotypic crosses between 016 and 018; GlO and Gl9 016 and G22: G16 and 028 may be suggested for future hybridization program. So, these are found the important characters and could be used on direct selection for yield. A Thesis Sufimited to the Faculty of Agricufture, Sher-e-Bangla Agricultura University, Dhaka, in partial filfillment of the requirements for the Degree of MASTER OF SCIENCE IN GENETICS AND PLANT BREEDING SEMESTER: JULY-DECEMBER, 2012

2012-07-01T00:00:00Z ALAM, MD. MONIRUL http://localhost:8080/handle/123456789/2096 2019-10-20T09:47:51Z 2012-07-01T00:00:00Z

Genetic Diversity Analysis For Physiological Traits in RADISH (Raphanus sativus L) ALAM, MD. MONIRUL A field experiment was conducted at the Agricultural Farm of Sher-e-Bangla Agricultural University, Sher-e-l3angla Nagar, Dhaka, Bangladesh during the rabi season of November 2011 to February 2012 to characterize and genetic diversity analysis of 21 radish varieties based on some physiological characters. Four distinct clusters were observed among the radish varieties on the basis of total dry matter (TDM), relative growth rate (RGR). crop growth rate (CGR). leaf area index (LAI), net assimilation rate (NAR), leaf area ratio ([AR). leaf weight ratio (LWR), leaf number per plant, harvest index (HI), days to harvest and root yield per plant. Cluster IV consisted of the highest number of varieties, viz.. Mino Early Long White (Ufsi Mula), BARI Radish-S (Druti), Mino Long White, Early White-35, Chaniak, Nong Woo Bio (F1 hybrid), Radish Royal- 40, White Prince (F1 hybrid radish). Cluster II composed of Lucky (Early 35 Days), Paira-40, Bright White 40, Rupsa, Tasakisan (China). Rocky-45. Cluster III composed of Snow White (IF1 hybrid). BARI Radish-2 (Pinky), BARI Radish4. Barisal Local, Ramboo-40. BARI Radish-I (Tasakisan) and Ivory White formed cluster 1. The highest root yield was observed in cluster 1(380.06) which also produced the highest 1DM and [Al. The longest cluster distance was observed between cluster I and cluster II. Clustering pattern was not influenced by the genotypic origin. Ivory white produced the highest root yield, TDM, and LA! which was followed by BARI radish-I. Ivory white did not flower in growing season. BARI radish-2 produced the highest ROR and NAR. Rupsa produced the highest harvest index. Leaf area index, LAR, LWR and leaf number per plant were the major components of genetic divergence in the radish varieties. Considering genetic diversity and other performances. BARI radish-I, BARI radish-2 and Rupsa appear to be promising parents for future hybridization program. A Thesis Sufimited to the Faculty of Agricufture, Sher-e-Bangla Agricultura University, Dhaka, in partial filfillment of the requirements for the Degree of MASTER OF SCIENCE IN GENETICS AND PLANT BREEDING SEMESTER: JULY-DECEMBER, 2012

2012-07-01T00:00:00Z ASADUZZAMAN, MIR http://localhost:8080/handle/123456789/2095 2019-10-20T09:48:43Z 2012-07-01T00:00:00Z

VARIABILITY, CORRELATION AND PATH COEFFICIENT ANALYSIS IN BC1 F1 GENERATION OF Brassica napus L. ASADUZZAMAN, MIR The experiment was conducted with thirty four BC1F, progenies of Brassica napus and one check variety at the experimental farm of Sher-e-Bangla Agricultural university. Dhaka- 1207, during november, 2010 to March, 2011 to study the variability, correlation and path analaysis in BC, F, generation of Brassica napus. Comparatively phenotvpic variances were higher than the genotypie variances for all the characters studied. The high OCY value was observed for number of secondary branches per plant. High heritability with low genetic advance in percent of mean was observed for number of seeds per siliqua, siliqua length and thousand seed weight indicating that non-additive gene effects were involved for the expression of these characters and selection for such traits might not be rewarding. Iligh heritability with high genetic advance in percent of mean was observed for number of siliqua per plant and seed yield per plant indicating that these traits were under additive gene control and selection for genetic improvement for these traits would be effective. The results of correlation revealed that yield per plant had positive association with plant height, days to 50% (lowering and days to maturity. Path co-efficient analysis revealed that plant height, days to 50% flowering, days to maturity and thousand seed weight had the positive direct effect on yield per plant. Whereas, number of primary branches per plant, number of secondary branches per plant, number of siliquae per plant, number of seeds per siliqua and siliqua length had the negative direct effect on yield per plant. A Thesis Sufimited to the Faculty of Agricufture, Sher-e-Bangla Agricultura University, Dhaka, in partial filfillment of the requirements for the Degree of MASTER OF SCIENCE IN GENETICS AND PLANT BREEDING SEMESTER: JULY-DECEMBER, 2012

2012-07-01T00:00:00Z