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RISS 인기검색어
- 검색키워드
- 저자 : Md. Abir Ul Islam (검색결과 2 건)
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Md. Abir Ul Islam,Juthy Abedin Nupur,Arif Hasan Khan Robin 한국육종학회 2020 Plant Breeding and Biotechnology Vol.8 No.4
Short duration oilseed Brassica varieties are important to increase cropping intensity as well as total oilseed production. In this research, genetic and multivariate analyses were conducted for 19 morphological characters of 48 rapeseed and mustardgenotypes. Evaluation of oil content and fatty acid profiles were done for ten selected rapeseed and mustard genotypes. Significantgenotypic variations were observed for all morphological characters except 1000 seeds weight. Days to 50% flowering, plant height,total number of siliqua per plant, number of seeds per siliqua, length of siliqua and days to maturity exhibited high broad senseheritability along with high genetic advance. Length of primary branches, number of primary branches, number of secondary branches,total number of siliqua per plant, number of siliqua per main axis and number of siliqua per primary branches had a significant andpositive correlation with yield per plant. According to principal component analysis and cluster analysis—BARI Sharisha-9, BD-110455, BD-7113, BD-6954 and BD-6953 were the earliest genotypes and BD-10112, M-395 and M-119-5 were comparatively highyielding genotypes. The genotypes BD-6953, BD-6954, BD-10455, BD-10112 and BD-7113 had comparatively lower erucic acid andsaturated fatty acid profiles that are regarded as better edible oil characteristics. The selected genotypes and associated traits could beutilized for developing short duration, high yielding and edible quality rapeseed-mustard varieties.
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Juthy Abedin Nupur,Afsana Hannan,Md. Abir Ul Islam,G H M Sagor,Arif Hasan Khan Robin 한국육종학회 2020 Plant Breeding and Biotechnology Vol.8 No.2
Osmotic stress is a kind of stress which is directly or indirectly related to all other abiotic stresses. Four rice varietiesnamely Binadhan-11 (with SUB1 gene), BRRI dhan52 (with SUB1 gene), Binadhan-7 and BRRI dhan71 were used to study thevariation in root development and anti-oxidative response under osmotic stress conditions. Osmotic stress was induced by applyingpolyethylene glycol (4% PEG) in hydroponic solution. Treatment was given at the panicle initiation stage and leaf samples werecollected at fourteen days after treatment to estimate antioxidant response in terms of ascorbate (APX) and peroxidase (POD) enzymaticactivity. Roots were destructively harvested at 16 days after the stress imposition. The tested varieties showed significant differences inantioxidant responses under the stress condition such as high APX and POD in Binadhan-11 and BRRI dhan52. Significant injury at the4thleaf position (the youngest leaf was the reference) was observed at 8 and 12 days after the treatment. Number of live leaves, shootdry weight, density of second order lateral roots, number of phytomer (Pr) and total roots, number of roots at Pr2, main axis diameterat Pr1, main axis length at Pr1 varied significantly among the varieties × treatment combinations. Binadhan-11 and BRRI dhan52showed comparatively higher osmotic stress tolerance compared to the other two varieties without SUB1 gene, viz., Binadhan-7 andBRRI dhan71. The varieties BRRI dhan52, and Binadhan-11 showed greater capacity to withstand osmotic stress can be further used todevelop stress tolerant variety.
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