Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation
To promote the better utilization of genetic resources of cashew, 91 accessions maintained at Cashew Research Station, Madakkathara were assessed for 38 phenotypic traits. Frequencies of the phenotypic classes of each character were calculated. The Shannon diversity index (H ') was used to...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2021-12-01
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| Series: | Electronic Journal of Plant Breeding |
| Subjects: | |
| Online Access: | https://www.ejplantbreeding.org/index.php/EJPB/article/view/3735 |
| _version_ | 1797853394373705728 |
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| author | A. C. Asna* , Jalaja S. Menon and M. S. Smitha |
| author_facet | A. C. Asna* , Jalaja S. Menon and M. S. Smitha |
| author_sort | A. C. Asna* , Jalaja S. Menon and M. S. Smitha |
| collection | DOAJ |
| description | To promote the better utilization of genetic resources of cashew, 91 accessions maintained at Cashew Research Station,
Madakkathara were assessed for 38 phenotypic traits. Frequencies of the phenotypic classes of each character were
calculated. The Shannon diversity index (H ') was used to estimate the magnitude of diversity. Polymorphism was high
for tree habit (0.96), tree height (0.89), branching pattern (0.89), colour (0.80), ridges (0.93), apex (0.95), cavity (0.90)
and weight (0.84) of cashew apple, attachment of nut to apple (0.85), flanks of nut (0.95) and cotyledonary grooves
(0.99). The cluster analysis using the squared Euclidean distance method classified the accessions into 13 clusters at
a 55 per cent similarity level. More than 50 per cent of the accessions were high yielding with moderate quality kernels.
Grouping of the genotypes into agronomic groups revealed the existence of highly prolific accessions with high quality
kernels that can be exploited for crop improvement programmes. |
| first_indexed | 2024-04-09T19:49:57Z |
| format | Article |
| id | doaj.art-9202f43cec264bd5a6e6bc0c2e808416 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-04-09T19:49:57Z |
| publishDate | 2021-12-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-9202f43cec264bd5a6e6bc0c2e8084162023-04-03T10:20:03ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2021-12-011241218122610.37992/2021.1204.167Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservationA. C. Asna* , Jalaja S. Menon and M. S. Smitha0Cashew Research Station, Kerala Agricultural University, Madakkathara, Kerala, India-680651 *E-Mail: asna.ac@kau.inTo promote the better utilization of genetic resources of cashew, 91 accessions maintained at Cashew Research Station, Madakkathara were assessed for 38 phenotypic traits. Frequencies of the phenotypic classes of each character were calculated. The Shannon diversity index (H ') was used to estimate the magnitude of diversity. Polymorphism was high for tree habit (0.96), tree height (0.89), branching pattern (0.89), colour (0.80), ridges (0.93), apex (0.95), cavity (0.90) and weight (0.84) of cashew apple, attachment of nut to apple (0.85), flanks of nut (0.95) and cotyledonary grooves (0.99). The cluster analysis using the squared Euclidean distance method classified the accessions into 13 clusters at a 55 per cent similarity level. More than 50 per cent of the accessions were high yielding with moderate quality kernels. Grouping of the genotypes into agronomic groups revealed the existence of highly prolific accessions with high quality kernels that can be exploited for crop improvement programmes.https://www.ejplantbreeding.org/index.php/EJPB/article/view/3735cashewphenotypic diversitycluster analysiseuclidean distance |
| spellingShingle | A. C. Asna* , Jalaja S. Menon and M. S. Smitha Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation Electronic Journal of Plant Breeding cashew phenotypic diversity cluster analysis euclidean distance |
| title | Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation |
| title_full | Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation |
| title_fullStr | Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation |
| title_full_unstemmed | Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation |
| title_short | Phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation |
| title_sort | phenotypic diversity and clustering of germplasm accessions of cashew for utilization and conservation |
| topic | cashew phenotypic diversity cluster analysis euclidean distance |
| url | https://www.ejplantbreeding.org/index.php/EJPB/article/view/3735 |
| work_keys_str_mv | AT acasnajalajasmenonandmssmitha phenotypicdiversityandclusteringofgermplasmaccessionsofcashewforutilizationandconservation |