Morphometry of castor bean seeds from the Durango State’s arid zone, Mexico

Ricinus communis yields oilseeds of great commercial importance to industry. The aim of this study was to generate morphometric information on seed size and shape of wild castor bean accessions collected in the Durango State’s arid zone, Mexico. Bivariate scatter plots were used to identify possible relationships between seed morphometric attributes. Principal component analysis allowed the identification of three seed groups that are highly dependent on shape attributes and volume. One group involves seeds with high volume, low eccentricity, high roundness and medium flatness. Another group includes seeds with medium volume, high eccentricity, medium roundness and high flatness. The last group involves seeds with small volume, eccentricity, roundness, and flatness with high dispersion. Relationships between seed area or volume with the axes of the seeds suggest that their shapes are complex. Knowledge of seed sizes and shapes can be helpful to design technical innovation for R. communis seed handling and storage in natural ecosystems and agricultural farms.

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Morphological characterization and selection of castor bean accessions for mechanized production1

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632019v4956749 ◽

2019 ◽

Vol 49 ◽

Cited By ~ 2

Author(s):

Sebastião Soares de Oliveira Neto ◽

Matheus Kainan de Paula Manjavachi ◽

Douglas Mariani Zeffa ◽

Maria Márcia Pereira Sartori ◽

Maurício Dutra Zanotto

Keyword(s):

Principal Component Analysis ◽

Castor Bean ◽

Ricinus Communis ◽

Principal Component ◽

Component Analysis ◽

Morphological Characterization ◽

Group Method ◽

Mechanized Production ◽

Breeding Programs ◽

Selection Of

ABSTRACT Castor bean (Ricinus communis L.) is an oilseed found in different regions worldwide, due to its easy propagation and adaptability. Cropping more productive disease-resistant genotypes that enable a mechanized production ensures greater economic returns for farmers. This study aimed to morphologically characterize and select promising castor bean accessions for mechanized cropping, mainly as a source of genetic variability for breeding programs with this purpose. Fifty accessions were assessed. Analysis of variance, dissimilarity clustering via the unweighted pair-group method with arithmetic mean (UPGMA) and principal component analysis were used to analyze the collected data. The dissimilarity analysis based on the Gower distance for qualitative and quantitative variables revealed three groups of accessions and the principal component analysis enabled the selection of those with desirable traits. The accessions BOC1, PRAT1 and SM2 exhibited morpho-agronomic characteristics of interest to the mechanized production, such as ideal plant height, diameter, seed weight and oil content. Such genotypes show a potential for use as genitors in genetic breeding programs of castor bean.

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On the origin of oil droplets in maturing castor bean seeds,Ricinus communis

Lipids ◽

10.1007/bf02531217 ◽

1971 ◽

Vol 6 (11) ◽

pp. 851-854 ◽

Cited By ~ 54

Author(s):

J. L. Harwood ◽

Ann Sodja ◽

P. K. Stumpf ◽

A. R. Spurr

Keyword(s):

Castor Bean ◽

Ricinus Communis ◽

Oil Droplets ◽

Origin Of Oil

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Ricinus communis L. (castor bean) as a potential candidate for revegetating industrial waste contaminated sites in peri-urban Greater Hyderabad: remarks on seed oil

Environmental Science and Pollution Research ◽

10.1007/s11356-017-9654-5 ◽

2017 ◽

Vol 24 (24) ◽

pp. 19955-19964 ◽

Cited By ~ 11

Author(s):

Ravi Kiran Boda ◽

Narasimha Vara Prasad Majeti ◽

Sateesh Suthari

Keyword(s):

Castor Bean ◽

Industrial Waste ◽

Seed Oil ◽

Ricinus Communis ◽

Contaminated Sites ◽

Potential Candidate ◽

Ricinus Communis L

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First report of association of Cucumber mosaic virus with blister and leaf distortion of castor bean (Ricinus communis) in India

Phytoparasitica ◽

10.1007/s12600-010-0096-6 ◽

2010 ◽

Vol 38 (3) ◽

pp. 283-289 ◽

Cited By ~ 7

Author(s):

Shri Krishna Raj ◽

Sunil Kumar Snehi ◽

Karmveer Kumar Gautam ◽

Mohammad Sajid Khan

Keyword(s):

Cucumber Mosaic Virus ◽

Mosaic Virus ◽

Castor Bean ◽

Ricinus Communis ◽

First Report ◽

Leaf Distortion

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Developing an agro-climatic zoning model to determine potential production areas for castor bean (Ricinus communis L.)

Industrial Crops and Products ◽

10.1016/j.indcrop.2012.02.044 ◽

2012 ◽

Vol 40 ◽

pp. 185-191 ◽

Cited By ~ 41

Author(s):

Silvia L. Falasca ◽

Ana C. Ulberich ◽

Eliana Ulberich

Keyword(s):

Castor Bean ◽

Ricinus Communis ◽

Potential Production ◽

Ricinus Communis L ◽

Production Areas ◽

Climatic Zoning

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Bulked segregant analysis reveals candidate genes responsible for dwarf formation in woody oilseed crop castor bean

Scientific Reports ◽

10.1038/s41598-021-85644-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Zaiqing Wang ◽

Anmin Yu ◽

Fei Li ◽

Wei Xu ◽

Bing Han ◽

...

Keyword(s):

Candidate Genes ◽

Castor Bean ◽

Woody Plants ◽

Molecular Mechanisms ◽

Ricinus Communis ◽

Bulked Segregant Analysis ◽

Oilseed Crop ◽

Yeast Transformation ◽

Dwarf Phenotype ◽

Genetic Breeding

AbstractPlant dwarfism is a desirable agronomic trait in non-timber trees, but little is known about the physiological and molecular mechanism underlying dwarfism in woody plants. Castor bean (Ricinus communis) is a typical woody oilseed crop. We performed cytological observations within xylem, phloem and cambia tissues, revealing that divergent cell growth in all tissues might play a role in the dwarf phenotype in cultivated castor bean. Based on bulked segregant analyses for a F2 population generated from the crossing of a tall and a dwarf accession, we identified two QTLs associated with plant height, covering 325 candidate genes. One of these, Rc5NG4-1 encoding a putative IAA transport protein localized in the tonoplast was functionally characterized. A non-synonymous SNP (altering the amino acid sequence from Y to C at position 218) differentiated the tall and dwarf plants and we confirmed, through heterologous yeast transformation, that the IAA uptake capacities of Rc5NG4-1Y and Rc5NG4-1C were significantly different. This study provides insights into the physiological and molecular mechanisms of dwarfing in woody non-timber economically important plants, with potential to aid in the genetic breeding of castor bean and other related crops.

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ESTIMATION OF GENETIC DIVERGENCE IN CHILLI PEPPER (CAPSICUM ANNUUM L.) GENOTYPES FOR MORPHOLOGICAL AND FRUIT TRAITS UNDER HOT CLIMATE OF UMERKOT, SINDH

Pakistan Journal of Agriculture, Agricultural Engineering and Veterinary Sciences ◽

10.47432/2021.37.1.3 ◽

2021 ◽

Vol 37 (1) ◽

pp. 21-28

Author(s):

A. Memon ◽

R. Ahmad ◽

M. S. Depar ◽

A. K. Pathan ◽

D. Ibrar

Keyword(s):

Cluster Analysis ◽

Genetic Divergence ◽

Agricultural Research ◽

Arid Zone ◽

Principal Component ◽

Fruit Weight ◽

Economic Traits ◽

Chilli Pepper ◽

Hot Climate ◽

Improvement Programs

Thirty-two genotypes of chilli from three different sources (local dandicuts, AVRDC and PGRI PARC) were evaluated for the presence of genetic divergence among them for different agro-economic traits i.e., plant height, stem girth, fruit length, fruit girth, number of fruits per plant, number of seed per fruit, fresh fruit weight and dry fruit weight at Arid Zone Agricultural Research Institute, Umerkot, Sindh during 2018. All these genotypes were found to be significantly different from each other for all the studied traits. For further diversity analysis, multivariate analyses like principal component analysis (PCA) and Cluster analysis were also performed to figure out the traits responsible for maximum variability and grouping of genotypes according to their similarities and differences for their future utilization in chilli breeding programs. PCA analysis showed that first four PCs exhibited 82.79% of the total variability among these 32 chilli genotypes. Cluster analysis showed four different sub-clusters and the genotypes from every single source merge in each sub-cluster, thus showing that chilli genotypes are from different geographical backgrounds. Based on these results, the chilli genotypes can be further utilized in future chilli improvement programs in Pakistan. Genotypes AZRI-DS-14, AZRI-DS-01 and AVPP-9804 showed better performance.

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Life history of Neoseiulus californicus (McGregor, 1954) (Acari: Phytoseiidae) fed with castor bean (Ricinus communisL.) pollen in laboratory conditions

Brazilian Journal of Biology ◽

10.1590/bjb.2014.0079 ◽

2014 ◽

Vol 74 (3) ◽

pp. 691-697 ◽

Cited By ~ 9

Author(s):

PP Marafeli ◽

PR Reis ◽

EC. da Silveira ◽

GC Souza-Pimentel ◽

MA. de Toledo

Keyword(s):

Life History ◽

Castor Bean ◽

Ricinus Communis ◽

Intrinsic Rate ◽

Predatory Mite ◽

Neoseiulus Californicus ◽

Intrinsic Rate Of Increase ◽

Ricinus Communis L ◽

Rate Of Increase ◽

History Of

The predatory mite, Neoseiulus californicus(McGregor, 1954) (Acari: Phytoseiidae) is one of the principal natural enemies of tetranychid mites in several countries, promoting efficient control of those mites in several food and ornamental crops. Pest attacks such as that of the spider mite, Tetranychus urticaeKoch, 1836 (Acari: Tetranychidae), is one of the problems faced by farmers, especially in the greenhouse, due to the difficulty of its control with the use of chemicals because of the development of fast resistance making it hard to control it. The objective of this work was to study the life history of the predatory mite N. californicus as a contribution to its mass laboratory rearing, having castor bean plant [Ricinus communis L. (Euphorbiaceae)] pollen as food, for its subsequent use as a natural enemy of T. urticae on a cultivation of greenhouse rosebushes. The studies were carried out in the laboratory, at 25 ± 2°C of temperature, 70 ± 10% RH and a 14 hour photophase. The biological aspects and the fertility life table were appraised. Longevity of 32.9 days was verified for adult females and 40.4 days for males. The intrinsic rate of increase (rm) was 0.2 and the mean generation time (T) was 17.2 days. The population doubled every 4.1 days. The results obtained were similar to those in which the predatory mite N. californicus fed on T. urticae.

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