scholarly journals MORPHOLOGICAL CHARACTERIZATION OF BROWN SARSON (BRASSICA RAPA L. ) GENOTYPES FOR DUS TRAITS

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Tahmeena Bano ◽  
Shahina A. Nagoo ◽  
M. Asif Iqbal Qureshi ◽  
M. Altaf Wani ◽  
Sanjay Kumar ◽  
...  
Keyword(s):  
Brassica Rapa ◽  
Edible Oils ◽  
Common Knowledge ◽  
Block Design ◽  
Plant Genetic Resources ◽  
Germplasm Conservation ◽  
Morphological Characterization ◽  
Breeding Programmes ◽  
Oilseed Breeding

Rapeseed and mustard , the two important oleriferous Brassicae grown in India play a magnanimous role in the national market of edible oils and meals. But the production of the crop is low due to a narrow genetic base. Much effort has been put to diversifying the oilseed breeding. The morphological characterization is the first step towards diversity analysis and conservation of plant genetic resources. A major challenge facing those involved in the testing of new plant varieties for Distinctness, Uniformity, and Stability (DUS) is the need to compare them against all those of ‘common knowledge. Protection of Plant varieties and Farmer’s Right Act insists on Distinctness, Uniformity, and Stability (DUS) characterization of new varieties and recommends the registration of varieties for any one specific novel character. On this backdrop, the present experiment was carried out to evaluate 54 Brassica rapa L. genotypes for DUS characterization under randomized complete block design ( RCBD) with three replication at the experimental farm of GPB, FoA SKUAST-K, Wadura during rabi 2019-2020. The results of the study revealed wide variation in various traits among different Brassica rapa genotypes L. The assessment of 54 genotypes for 09 traits revealed that all the traits were informative with respect to trait expression cum characterization. The different characters studied were having great impact for selection of superior genotypes for further breeding programmes. Hence, the diversity observed among the genotypes could be utilized for cultivar improvement and germplasm conservation programs aimed at improving productivity in Brassica rapaL

scholarly journals Characterization of Pigeonpea Genotypes Based on DUS Traits

2021 ◽  
pp. 289-297
Author(s):  
M. S. Ranjani ◽  
P. Jayamani
Keyword(s):  
Tamil Nadu ◽  
Block Design ◽  
Morphological Characterization ◽  
Genetic Purity ◽  
Seed Shape ◽  
Qualitative Traits ◽  
Group I ◽  
Average Similarity ◽  
Breeding Programmes

The research entails morphological characterization of pigeonpea genotypes based on qualitative traits which aids in varietal description and ensure genetic purity. The study was conducted at the Department of Pulses, Tamil Nadu Agricultural University during kharif, 2019 and rabi, 2019-2020. The experiment was conducted in Randomized complete block design with two replications. The 68-short duration pigeonpea genotypes were characterized and grouped based on 17 qualitative traits. The morphological characterization revealed that, more variation was identified for traits viz., pattern of streaks on standard petal, plant height, seed colour, seed shape and seed size. Sixty - eight genotypes were subjected to cluster analysis and were grouped into four major clusters with an average similarity of 80%. The similarity coefficient ranged from 0.65 to 1.00. The cluster I consisted of 60 genotypes. Two sub-groups were formed from Cluster I. The sub-group I had 59 genotypes at 84 per cent similarity, whereas the sub-group II consisted of the genotype ICPL19050. Cluster II was made up of six genotypes. The cluster II was divided into two sub-groups at 84 per cent similarity. Clusters III and IV were solitary clusters, each with a single genotype. The characterization of genotypes with specific traits could be used to identify the genotypes, maintenance of genetic purity and to utilize in future breeding programmes.

scholarly journals Agro-morphological characterization of horned melon (Cucumis metuliferus) accessions from selected agro-ecological zones in Kenya

2020 ◽  
pp. 1487-1496
Author(s):  
Marline Hanny Owino ◽  
Bernard Mukiri Gichimu ◽  
Phyllis Wambui Muturi
Keyword(s):  
Block Design ◽  
Plant Genetic Resources ◽  
Morphological Diversity ◽  
Morphological Characterization ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Seed Shape ◽  
Ecological Zones ◽  
Agro Ecological Zones

Morphological characterization of genotypes is fundamental in providing information on their genetic status to guide on their conservation and improvement. The objective of this study was to determine agro-morphological diversity within horned melon in Kenya. The study was carried out in two seasons at the University of Embu in Kenya. The study characterized 19 horned melon accessions collected from different agro-ecological zones in Eastern, Central and Western regions in Kenya. The experiment was laid out in a randomized complete block design with three replications. Morphological characterization of the accessions was based on melon descriptors from International Plant Genetic Resources Institute (IPGRI) with slight modifications. Significant differences were observed in all the quantitative traits except the number of branches and main vine length. However, qualitative variations were only observed in fruit shape, rind colour and seed shape. Principle Component Analysis (PCA) showed that fruit weight, main vine length and days to maturity had the highest contribution to the observed diversity. Cluster analysis separated the accessions into seven groups with between classes diversity of 79.20% and within classes diversity of 20.80%. The diversity observed can be exploited by plant breeders for genetic improvement of the crop.

Germplasm conservation, molecular identity and morphological characterization of persimmon (Diospyros kaki Thunb.) in the NFGP of China

2020 ◽  
Vol 272 ◽  
pp. 109490
Author(s):  
Changfei Guan ◽  
Yangfan Zhang ◽  
Pingxian Zhang ◽  
Sadaruddin Chachar ◽  
Renzi Wang ◽  
...  
Keyword(s):  
Germplasm Conservation ◽  
Morphological Characterization ◽  
Diospyros Kaki ◽  
Molecular Identity

Identification and assessment of genetic relationships in three Chlorophytum species and two high yielding genotypes of C. borivilianum through RAPD markers

Biologia ◽  
2011 ◽  
Vol 66 (2) ◽  
Author(s):  
Sanghamitra Samantaray ◽  
Tarun Patel ◽  
K. Geetha ◽  
Satyabrata Maiti
Keyword(s):  
Rapd Markers ◽  
Genetic Relatedness ◽  
Genetic Relationships ◽  
Plant Genetic Resources ◽  
Banding Patterns ◽  
Major Cluster ◽  
Breeding Programmes ◽  
Important Input ◽  
Identification And Characterization

AbstractConservation of identified germplasm is an important component for efficient and effective management of plant genetic resources. Since Chlorophytum species are important medicinal plants, studies were carried out for identification and establish genetic relationships in three species of Chlorophytum and two high yielding genotypes of Chlorophtum borivilianum using RAPD markers. Out of one hundred primers tested, 47 decamers amplified a total of 454 distinct bands ranging from 0.25–3.0 kbp to identify and to evaluate genetic relationships between and among three species of Chlorophytum and two genotypes of Chlorophtum borivilianum. The cluster analysis indicated that three species of Chlorophytum and two genotypes (NRCCB-1 and NRCCB-2) of C. borivilianum formed two major clusters. The first major cluster constituted C. arundinaceum and C. tuberosum, and the second major cluster composed of two subclusters; the first subcluster represented NRCB-1 and NRCB-2 where as the second subcluster represented C. borivilianum. Thus, the RAPD markers have the potential for identification and characterization of genetic relatedness among the species and genotypes. C. borivilianum along with two genotypes also showed similar banding patterns which could be chosen as candidate markers for differentiating the other two species such as C. arundinaceum and C. tuberosum. This would helpful for breeding programmes and provides an important input in conservation biology.

scholarly journals Agro-morphological characterization of flax (Linum usitatissimum L.) accessions at north-western part of Bangladesh

2020 ◽  
Vol 5 (4) ◽  
pp. 465-469
Author(s):  
A.K.M. Golam Sarwar ◽  
Md. Eakramul Haque ◽  
Most. Morshada Khatun ◽  
Md. Sabibul Haque
Keyword(s):  
Linum Usitatissimum ◽  
Agricultural Research ◽  
Block Design ◽  
Morphological Characterization ◽  
Growth And Yield ◽  
Research Station ◽  
Agricultural Crop ◽  
Linum Usitatissimum L ◽  
Flax Seeds

Flax (Linum usitatissimum L.), grown throughout the world for millennia. It is a multipurpose agricultural crop that can provide food, fuel and fibre. An agro-morphological characterization based on 13 traits of 26 flax accessions was carried out during the Rabi season 2017-2018 at the Agricultural Research Station, Bangladesh Agricultural Research Institute, Rangpur. The field experiment was laid out in a randomized completed block design having four replications. Flax seeds were sown in 3.0 m × 0.6 m plot with continuous line sowing (two lines). The seed germination (%) and vigour indices of all flax accessions varied from 44.1 – 77.7 and 44.1 – 119.4, respectively. A significant variation in all growth and yield attributing descriptors was observed except 1000-seed weight of flax. Among the accessions, BD-10708 possessed the highest seed yield (182.9 g plant–1) and yield attributing descriptors viz., number of capsules plant–1 (142) and seeds plant–1 (513) of flax. The performance of the local accesson Ulipur was observed poor compared to some of the test accessions of flax. Some of these flax accessions could be used as breeding materials in varietal developmental and improvement programmes with higher yield potentials of flax in Bangladesh.

scholarly journals Morphological characterization of Coelogyne spp for germplasm conservation of orchids

Revista CERES ◽  
2019 ◽  
Vol 66 (4) ◽  
pp. 265-270
Author(s):  
Sri Hartati ◽  
Endang S. Muliawati ◽  
Pardono Pardono ◽  
Ongko Cahyono ◽  
Ponco Yuliyanto
Keyword(s):  
Germplasm Conservation ◽  
Morphological Characterization

scholarly journals Characterization of West and Central African accessions from a pearl millet reference collection for agro-morphological traits and Striga resistance

2017 ◽  
Vol 16 (3) ◽  
pp. 260-272 ◽  
Author(s):  
F. T. Sattler ◽  
M. D. Sanogo ◽  
I. A. Kassari ◽  
I. I. Angarawai ◽  
K. W. Gwadi ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Pennisetum Glaucum ◽  
Principal Component ◽  
Field Trials ◽  
Morphological Characterization ◽  
Striga Hermonthica ◽  
Effective Population ◽  
Reference Collection ◽  
Breeding Programmes

AbstractTo promote the utilization of West and Central African (WCA) genetic resources of pearl millet [Pennisetum glaucum (L.) R. Br.], this study aimed at agro-morphological characterization of selected accessions from the pearl millet reference collection, established by the Generation Challenge Program and the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT). A total of 81 accessions were included, comprising 78 landraces originating from 13, predominantly WCA countries and three improved cultivars. All 81 accessions were evaluated together with 18 checks for resistance to the parasitic weed Striga hermonthica (Del.) Benth. in an artificially infested field at one location in Niger. Determined by available seed quantity, 74 accessions were characterized together with seven checks in the rainy season 2009 in field trials under low-input and fertilized conditions in Nigeria, Niger and Mali, respectively. Wide ranges were observed for various traits. Several accessions were identified as sources for specific traits of interest, i.e. long panicles, high-grain density, earliness, Striga resistance and stable yielding across environments. The observed yield inferiority of all Genebank accessions compared with checks may indicate lost adaptation or inbreeding depression due to an insufficient effective population size during multiplication. A principal component analysis revealed an immense diversity but also strong admixture among the tested accessions, i.e. there were no clearly distinct groups. The seed of all genotypes is available from ICRISAT. The online availability of the characterization data is expected to facilitate efficient use of these pearl millet accessions by breeding programmes in WCA and worldwide.

scholarly journals Genotypic Effects on Morphological Characterization of Fruit Traits in Mulberry

2021 ◽  
Vol 3 (5) ◽  
pp. 81-89
Author(s):  
Faruque Ahmed ◽  
Anwar Hossain ◽  
Nasir Uddin Ahmed ◽  
Md. Jahangir Alam ◽  
Md. Shoriful Islam
Keyword(s):  
Block Design ◽  
Morphological Variability ◽  
Fruit Production ◽  
Morphological Characterization ◽  
Fruit Weight ◽  
Fruit Traits ◽  
Light Yellow ◽  
Wide Range ◽  
Randomized Complete Block Design

The research was conducted to evaluate the morphological variability in fruits traits among the mulberry genotypes grown in Mulberry Germplasm Bank of Bangladesh Sericulture Research and Training Institute (BSRTI), Rajshahi, during 2018–2020. The aim of the research was to find out the genotypes accessibility for varietal improvement. Total 50 mulberry genotypes were morphologically characterized on fruit traits through this research. The experimental design was Randomized Complete Block Design (RCBD) with three replications and the plantation system was high bush. Each plot consists of 20 plants and unit plot size was 4 m × 5 m. Fruit colour, fruit taste and seed colour was determined. Nine distinct fruit colours such as reddish-black (23.33%), black-berry (18.33%), cream (10%), black (8.33%), white-cream (6.67%), pink (6.67%), pinkish (3.33%), orange (3.33%) and radish (1.67%) were observed among several germplasms. Remarkable variation was found in fruit taste such as sour sweet (28.33%), sweet (21.67%), light sweet (5%), light-sour sweet (5%) and deep sweet (5%), respectively. Five colored of seed viz: light yellow, light brown, yellowish brown, dark brown and blackish brown were observed among the germplasm. Length of the fruit diverse from 0.73 (BSRM-8) to 5.58 (BSRM-56 and widthfrom 0.52 (BSRM-8) to1.9 (BSRM-56),single fruit weight varied from 0.07 (BSRM-8) to 4.11 (BSRM-56), fruit weight per plant varied from 101.47 (BSRM-11) to 2250.43 (BSRM-56), seed setting (%) varied from 8.13 (BSRM-29) to 94.24 (BSRM-16), sprouting (%) varied from 36.67 (BSRM-22) to 96.67 (BSRM-38), rooting (%) varied from 13.89 (BSRM-22) to 98.33 (BSRM-10),achene number/fruit varied from 12.53 (BSRM-10) to118.10 (BSRM-56), seed number/fruit varied from 2.99 (BSRM-8) to 47.86 (BSRM-56) and 100 seed weight varied from 0.019 (BSRM-35) to 0.166 (BSRM-56), respectively. Results showed that the black-berry, sweet tasted fruited mulberry (BSRM-56), cream colored, sweet tasted fruited mulberry (BSRM-1) and white cream, sweet tasted fruited mulberry (BSRM-34) was promising on the basis of greatest fruit production potential to be appears for further commercial utilization. Generally, a wide range of variation was exhibited among the sampled and characterized genotypes.

scholarly journals Morphological characterization of garlic (Allium sativum L.) germplasm

2019 ◽  
Vol 2 (2) ◽  
pp. 46-52
Author(s):  
Md. Salahuddin ◽  
M.A. Rahim ◽  
S.M.Jakir Bin Alam ◽  
Md. Mahfujur Rahman ◽  
Jubaidur Rahman
Keyword(s):  
Allium Sativum ◽  
Block Design ◽  
Dry Weight ◽  
Morphological Characterization ◽  
Leaf Length ◽  
Fresh Weight ◽  
Leaf Weight ◽  
Number Of Leaves ◽  
Different Origins

AbstractA total of 25 garlic (Allium sativum L.) germplasm were collected from different location of Bangladesh and also from different countries of the world. Each germplasm was planted in each plot of 1m2 at the Allium Field Laboratory, Horticulture Farm, Bangladesh Agricultural University, Mymensingh. This study was conducted during October, 2010 to March, 2011 in the field, using randomized complete block design with three replications. All germplasm were characterized on number of leaves, height of plant, leaf length, fresh weight of leaf, dry weight of leaf, number of cloves per bulb, length and diameter of bulb, fresh weight of bulb, dry weight of bulb, yield per plot and yield per hectare. Analyses of variances showed that garlic germplasm with different origins were significantly different for all characters. Different germplasm resulted better performances but germplasm G49 from Vietnam gave the highest results in respect of number of leaves per plant (10.63), leaf length (43.57 cm), fresh leaf weight (92.47g), dry leaf weight (6.13g), fresh weight of bulb (21.37g), total number of cloves per bulb (42.13), bulb diameter (4.13cm), fresh weight of bulb (21.37g), dry weight of bulb (5.73g) and yield (9.83 t/ha) which could help future researchers in garlic selection program and improvement of yield.

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