scholarly journals Agro-Morphological Characterization of Sicilian Chili Pepper Accessions for Ornamental Purposes

Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1400
Author(s):  
Giuseppe Virga ◽  
Mario Licata ◽  
Beppe Benedetto Consentino ◽  
Teresa Tuttolomondo ◽  
Leo Sabatino ◽  
...  

The species belonging to the genus Capsicum have been widely used as decorative vegetables, however only a few genotypes are available for this purpose. The goal of the present work was the agro-morphological characterization of several chili pepper accessions cultivated into different pot sizes (10, 14, 18 or 20 cm diameters). The agro-morphological characterization of 19 accessions was performed following IPGR (International Plant Genetic Resources Institute) descriptors: plant height (PH), plant canopy width (PCW), PH/PCW ratio, plant growth habit, plant visual quality, first flower emission, fruiting start, end of harvest, fruit number, fruit length, fruit width, fruit color at mature stage and fruit shape. Analysis of Variance (ANOVA) for all observed traits showed statistical significant differences among the genotypes tested. Results of the heat map complementarily secured the frequency of multiplicity highlighted from the ANOVA analysis. Furthermore, the present study pointed out that A33, A27, G1 and A1 chili pepper accessions achieved optimal performances in terms of plant visual quality, which is a crucial trait for ornamental purposes.

2021 ◽  
Vol 2 (5) ◽  
pp. 1-8
Author(s):  
Jannatul Ferdousi ◽  
Mohammad Zakaria ◽  
Md. Azizul Hoque ◽  
Satya Ranjan Saha ◽  
Nasrin Akter Ivy ◽  
...  

Sweet pepper is one of the most important nutritious vegetable and its demand is increasing day by day in Bangladesh indicating need to characterize and assess morphological variability for varietal improvement programme. Twenty-one sweet pepper genotypes from native and alien sources were characterized for twenty-six morphological traits using vegetative and reproductive appearances at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh from October 2018 to March 2019. Marked variation was exhibited among twenty-six qualitative traits (26) studied. Twenty-two (22) characters showed undeniable variation among the genotypes. The presence of higher percentage (61.90%) of light purple color at node were observed indicated high amount of anthocyanin content. Leaf shape is used as genotypes identifier at vegetative stage and herein three types of leaves were found with dark green color (76.19%) that is highly correlates with yield. In case of flower, same level of stigma exertion (61.90%) with 100% white color corolla indicates higher number of fruit sett were exhibited. Entire genotypes exerted one or more exclusive characters especially fruit shape and color in Bangladesh perspective which could be used as an important breeding tools. Fruit color was observed in various categories at intermediate and mature stage as for instance yellow, green, purple, orange, red etc. in addition higher percentage of blocky fruit shape (38.09%) were observed and these are the consumer fascinating attributes of sweet pepper. However, selection of genotypes with desirable morphological trait can be used for their exploitation of future breeding programme.


2020 ◽  
pp. 1487-1496
Author(s):  
Marline Hanny Owino ◽  
Bernard Mukiri Gichimu ◽  
Phyllis Wambui Muturi

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.


2017 ◽  
Vol 65 (2) ◽  
pp. 555-569 ◽  
Author(s):  
A. Orobiyi ◽  
L. Y. Loko ◽  
F. Sanoussi ◽  
A. P. Agré ◽  
N. Korie ◽  
...  

2018 ◽  
Vol 43 (3) ◽  
pp. 499-512
Author(s):  
MT Islam ◽  
RA Chhanda ◽  
N Pervin ◽  
MA Hossain ◽  
RU Chowdhury

The experiment was carried out in a non replicated design with 40 accessions of brinjal (Solanum melongena L.) at Plant Genetic Resources Centre (PGRC), BARI Gazipur to characterize and study the genetic diversity and identify the useful traits. Each accession of nine plants was grownin a 3 X 2 m size plot. The accessions were collected from 16 districts of Bangladesh. Two to four classes were found for plant growth habit, leaf blade lobing, leaf prickles, flower colour, fruit shape, fruit apex shape and fruit colour distribution. The accessions exhibited 64% straight, 13% both slightly curved and curved, and 10% snaked shaped edible fruit along with 55% purple and 45% green fruit. Fruit length of accessions ranged from 5 to 31.23 cm, breadth 2.4 to 10.6 cm, weight 13 to 95.2 g and 3 to 30 fruits per plant. The accessions were grouped into five clusters. The inter and intra cluster distances ranged from 4.01 to 8.32 and 0.94 to 1.36, respectively. Accessions collected from the same districts felt into different clusters. The results obtained by D2 analysis were also confirmed by canonical analysis. Crosses BD-7327 (Rangpur) of cluster II with BD-9954 (Chittagong) of Cluster-III and BD-7319 (Panchagarh) of Cluster-I with BD-11732 (Bandarban) of cluster V, could be performed for obtaining wider variability in the segregating generations. The breeders could use the selected accessions for varietal improvement of brinjal.Bangladesh J. Agril. Res. 43(3): 499-512, September 2018


2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Ifa Manzila ◽  
Tri Puji Priyatno ◽  
KRISTIANTO NUGROHO ◽  
RERENSTRADIKA TIZAR TERRYANA ◽  
Puji Lestari ◽  
...  

Abstract. Manzila I, Priyatno TP, Nugroho K, Terryana RT, Lestari P, Hidayat SH. 2020. Molecular and morphological characterization of EMS-induced chili pepper mutants resistant to Chili veinal mottle virus. Biodiversitas 21: 1448-1457. Chili veinal mottle virus (ChiVMV) is a major prevalent virus that potentially reduces the yield of chili pepper by more than 50% in Indonesia. Therefore, the development of a ChiVMV-resistant cultivar is necessary to ensure satisfactory chili pepper production. Mutation breeding is a promising tool available to produce virus-resistant plants via the induction of new alleles due to point mutations within the existing chili germplasm. This research was conducted to assess the genetic variation of ten promising (M6) EMS-induced mutant lines of chili pepper (Capsicum annuum L.) potentially resistant to ChiVMV by their morphological characteristics and SSR profile, as well as identify potential mutants based on agronomic traits. The ten chili pepper mutant lines used in the present study were derived from the shoot tips of a Gelora cultivar treated with 0.5% ethyl methanesulfonate (EMS) as a chemical mutagen. The performance of the respective promising chili pepper mutant lines both at a molecular and morphological level was observed. Phenotypic analysis showed that all the promising chili pepper mutant lines underwent significant morphological changes. Of these, the phenotype coefficient variation (PCV) values were higher than the genotype coefficient variation (GCV) values for all the traits observed. High heritability (h2) was found for the canopy area, length of the fruit stalk, fruit weight, fruit weight per plant, thick fruit flesh, leaf width, leaf length, and fruit storage duration. A total of 52 alleles were detected from the five polymorphic SSR loci with 5.2 average alleles/loci. A dendrogram was generated and revealed two groups with five mutants clustered separately from their parents which could be valuable for further improvement.


2021 ◽  
Author(s):  
Anang Triyoso ◽  
Aprilia Baru

The tendency to prioritize food crops, such as rice and wheat, to meet human needs has resulted in dependence, degradation, and loss of local knowledge. In this term, biology education plays its role by exploring the potential of local plants, including their use as learning resources. One of those local plants is the taro plant (Colocasia Esculenta L.), an alternative staple food for those who live in Eastern Indonesia. The research method used was qualitative research. The data collection techniques included observation, interviews, characterization, and questionnaires. The data collected were analyzed through descriptive analysis. The morphological characterization of taro was done based on Descriptors for Taro IPGRI (International Plant Genetic Resources Institute). The poster development procedure used was the ADDIE model. The results of the exploration showed five local taro accessions that had variations in morphological characters. The plant range was directly proportional to the plant height. There was one accession that was tall (AT 5) and had the potential to be cultivated on a large scale. Most of the leaves were green, while the leaf vein color was varying, namely white, green, and purple, with harvesting periods ranging between 4 to 9 months. The leaf vein pattern has a shape like a letter Y. Five accessions had petiole cross-sections, a waxy coating on the leaf surface, and predominantly white intervenii. The assessments of material experts, media, and users showed that the poster was feasible, usable as a biology learning resource.


2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Tahmeena Bano ◽  
Shahina A. Nagoo ◽  
M. Asif Iqbal Qureshi ◽  
M. Altaf Wani ◽  
Sanjay Kumar ◽  
...  

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


Author(s):  
Gayatri . ◽  
K. Kavya ◽  
S. Shyamalamma

The study involved characterization of Jackfruit accessions with obloid (round) versus ellipsoid fruit shape. The morphological characterization was based on tree, fruit and seed descriptors. The Jackfruit accessions exhibited wide range of differences. The dominant tree growth habit was erect type, with medium to low branching density and branching pattern was irregular in most of the trees. With respect to fruit rind weight, it was more than fifty to sixty per cent in accessions with obloid fruit, than ellipsoid fruits. The rind weight ranged from thirty to forty per cent of the total fruit weight. Based on fruit and flake quality characters, the accessions such as Allilugatta 5, Kumaraswamy, Manipur Parmesh and Swarna in obloid fruits and Ashoka Red, Ashoka Yellow, Byrachandra, Janagere and NSP in ellipsoid fruits have been identified for commercial purpose. Among ten RAPD primers screened, two primers showed higher PIC value (0.24) viz., OPA 4 and OPAH 4. Similarly among ten ISSR markers screened, ISSR - 868 (0.31) showed higher PIC value. These can be used effectively to probe the genetic variations among the Jackfruit accessions.


2017 ◽  
Vol 42 (2) ◽  
pp. 207-219
Author(s):  
S Rahman ◽  
MA Hossain ◽  
R Afroz

An experiment was conducted using 60 chilli germplasm in the experimental field of Plant Genetic Resources Centre (PGRC), Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur during winter 2013-14 to characterize the germplasm based on morphological traits. Data were recorded as per the descriptor developed by Biovarsity International (BI) and Minimal Descriptor of Agri-Horticultural Crops. The germplasm were collected from different parts of Bangladesh and evaluated for 22 qualitative and 5 quantitative characters. Distinct variation among the germplasm was observed in all the qualitative parameters except cotyledonous leaf shape and fruit persistence. The maximum variation was observed in fruit colour both at mature and immature stage. Fruit colour was observed in four categories, namely green, black, green with blackish blush and dark green. The germplasm AMS-42, AMS-45, RI-35 and AH-5 showed black coloured fruit indicating their high carotenoid content. Leaf pigmentation was found in AMS-39, AMS-44, AMS-45, AH-1and RI-2 germplasm. Purple coloured corolla observed in AMS-42, AMS-45, AH-1 and AH-2 showing their high pollen fertility. The highest quantitative variation was observed in yield per plant suggesting that the evaluated germplasm could be used in developing high yielding variety. Considering the yield and yield contributing parameters the germplasm AI-1, AI-2 and RI-2 were found better among the 60 germplasm.Bangladesh J. Agril. Res. 42(2): 207-219, June 2017


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