Dept. of Crop Botany and Tea Production Technology

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    MORPHOLOGICAL FEATURES AND YIELD EVALUATION OF ONION GENOTYPES IN ACID SOIL
    (Dept. of Crop Botany and Tea Production Technology, 2015-06) ROY, ALPONA
    An experiment was conducted to study the morphological and yield characters with five genotypes Choto Bombay onion (control), Big Bombay onion, Special Bombay onion, Uz-1 and Uz-2 onion at the research farm of Sylhet Agricultural University, Sylhet from November 2013 to July 2014 with a view to select the suitable genotypes based on higher yielding abilities in acidic soil condition. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The experimental field was divided into three blocks representing three replications and each block had five individual plots with five genotypes that are evaluated on the basis of morphology and yield characteristics. Choto Bombay Onion (control), Two Indian cultivars namely Special Bombay Onion and Big Bombay Onion were collected from seed market at Dhaka while another two cultivars Uz-1 and Uz-2 were collected from Uzbekistan. Results revealed that high yielding genotype was Uz-2 which had highest in bulb fresh weight. The genotype Uz-2 was maximum in Bulb fresh weight, leaf sheath diameter, root fresh weight and bulb diameter and had contain highest moisture content. The genotype Uz1 onion was maximum in leaf blade diameter, leaf blade length, leaf blade fresh weight and root fresh weight whereas bulb length, bulb dry weight, leaf sheath length, leaf sheath dry weight and leaf blade dry weight was highest recorded in Special Bombay Onion. In maximum parameter Choto Bombay onion was lowest except leaf sheath length, root fresh weight, leaf sheath fresh weight, root dry weight, bulb dry weight and leaf sheath dry weight. Considering yield and yield contributing characters Uz-2 can be selected as the best genotype for Sylhet region.
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    MORPHOLOGICAL FEATURES AND YIELD ATTRIBUTES OF EXOTIC AND LOCAL OKRA (Abelmoschus esculentus) CULTIVARS IN ACID SOIL
    (Dept. of Crop Botany and Tea Production Technology, 2015-12) SHAWON, MD. RAYHAN AHMED
    Acid soils occur commonly in the high–rainfall areas along the hilly regions of Sylhet as a serious constraint to crop production and a primary yield-limiting factor. An experiment was conducted in the field laboratory of Department of Crop Botany and Tea Production Technology of Sylhet Agricultural University, Sylhet from March to October 2014 with a view to selecting the superior okra cultivar in relation to growth characters and yield attributes in acidic soil conditions. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. A total of 11 cultivars (treatments) viz. BARI Dherosh-1 (control), JO-1, JO- 2, JO-3, JO-4, Okra Onamika, Bankim, Durga, Indian, China and Thai were evaluated on the basis of growth and yield attributes. Orka Onamika, Bankim, Durga and Indian were collected from India, and JO-1, JO-2, JO-3 and JO-4 were collected from Japan. Significant variations were observed in all the parameters except the germination (%) and yield. Results revealed that high yielding cultivar BARI Dherosh-1 was taller at final harvest. Early flowering and maximum number of fruits plant observed in the cultivar Indian. Longest fruit length picked up in Bankim, whereas JO-1 showed the largest fruit diameter. The cultivar JO-1 cultivar showed superiority in germination capacity and number of seeds fruit -1 . JO-3 produced higher in individual fruit weight, number of branches and total number of flowers plant -1 . It appears attractive with ridge less, slender uniform size and shape, and was found tasty more due to softness and less fiber content. Regarding fruit yield, the cultivar JO-3, JO-2, Bankim and Okra Onamika performed better. Based on overall performance in morphological and yield attributes comparatively JO-3 proved to be promising cultivar in acid soil conditions of Sylhet.
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    MORPHO-PHYSIOLOGICAL FEATURES AND YIELD ATTRIBUTES OF SOYBEAN GENOTYPES IN ACID SOIL
    (Dept. of Crop Botany and Tea Production Technology, 2013-12) TABASSUM, REHENUMA
    An experiment was conducted at the experimental field of the Department of Crop Botany and Tea Production Technology, Sylhet Agricultural University, Sylhet, during the period from 10 April to 25 August 2013 to evaluate the morpho-physiological attributes and yield performance of nine advanced genotypes and five varieties of soybean in acidic soil. The tested genotypes and varieties were Binasoybean-1, Binasoybean-2, Shohag, BARI Soybean-5, BARI Soybean-6, SBM-9, SBM-15, SBM-17, SBM-18, SBM-20, SBM-22, SBM-73, SBM-78 and BAU-S/70 used as experimental treatments. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The result revealed that there was significant differences in plant height, number of branches plant -1 , number of leaves plant -1 , days to 50% flowering, days to maturity, root dry weight (g), stem dry weight (g), leaf dry weight (g), total dry matter (TDM), absolute growth rate (AGR), relative growth rate (RGR), crop growth rate (CGR), pod length, number of pods plant -1 , number of seeds pod -1 , number of -1 seeds plant , 100-seed weight, seed yield plant -1 -1 and yield ha among the soybean genotypes at all growth stages. Among the genotypes, SBM-78 showed the highest TDM accumulation, AGR, CGR, 100-seed weight while BARI Soybean-5 had the highest number of branches plant -1 , leaves number plant -1 , stem dry weight, leaf dry weight, pod -1 length, seeds pod -1 , seeds plant and economic yield in acid soil. Both genotypes showed better growth performance and produced the highest grain yield due to superiority of yield attributing characters in acid soils than the other genotypes. Therefore, BARI Soybean-5 and SBM-78 are possibly to be preferred as acid soil tolerable genotypes than others.
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    PHYSICO-MORPHOLOGICAL FEATURES AND YIELD ATTRIBUTES OF EXOTIC AND LOCAL OKRA CULTIVARS IN ACID SOIL
    (Dept. of Crop Botany and Tea Production Technology, 2013-12) SAHA, SUSHMITA RANI
    An experiment was conducted in the research field of Department of Crop Botany and Tea Production Technology, Sylhet Agricultural University, Sylhet from May to October 2013 with a view to select the superior Okra cultivar in relation to growth and yield attributes in acidic soil conditions. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. A total of 8 cultivars viz. BARI Dherosh-1 (control), Orka Onamika, Bankim, Durga, JO-1, JO-2, JO-3 and JO-4 were evaluated on the basis of growth and yield attributes. Orka Onamika, Bankim and Durga were collected from India while JO1, JO-2, JO-3 and JO-4 were collected from Japan. Significant variations were observed in case of all the parameters except the total no. flowers plant . Results revealed that high yielding cultivar Bankim exhibited taller plant at final harvest, produced early flowers, provided the highest fruit setting (%) and the maximum number of fruits plant -1 , and aborted fruits plant -1 -1 The cultivar JO-1 showed superiority in germination capacity and individual fruit weight. The longest fruit length and less fruit abortion were found in Durga, whereas JO-4 showed the highest fruit diameter. The cultivar JO-3 produced higher number of branches plant -1 . Fruits of JO-3 appears attractive with ridge less, slender, uniform size and shape, and was found relatively more tasty due to softness and less fiber content. Regarding fruit yield, the cultivar Bankim, JO-3 and JO-1 performed better. The cultivars Bankim, JO-1 & JO-3 were proved to be promising cultivars in acid soil conditions of Sylhet considering overall performance of morphological and yield attributes.