Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters
Avocado (Persea americana Mill.) is emerging as one of the high-valued fruit crops in India. Recently, demand for avocados is increasing due to the high nutritional value of the fruits. Currently, avocados are not grown on large commercial scale and there is a need of good high yielding varieties f...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Indian Council of Agricultural Research
2023-02-01
|
| Series: | The Indian Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/132039 |
| _version_ | 1797893788397469696 |
|---|---|
| author | MURALIDHARA B M SAKTHIVEL T KARUNAKARAN G VENUGOPALAN R VENKATRAVANAPPA V SIDDANNA SAVADI KARTHIK NAYAKA V S SHIVASHANKARA K S HONNABYRAIAH M K |
| author_facet | MURALIDHARA B M SAKTHIVEL T KARUNAKARAN G VENUGOPALAN R VENKATRAVANAPPA V SIDDANNA SAVADI KARTHIK NAYAKA V S SHIVASHANKARA K S HONNABYRAIAH M K |
| author_sort | MURALIDHARA B M |
| collection | DOAJ |
| description |
Avocado (Persea americana Mill.) is emerging as one of the high-valued fruit crops in India. Recently, demand for avocados is increasing due to the high nutritional value of the fruits. Currently, avocados are not grown on large commercial scale and there is a need of good high yielding varieties for commercial cultivation. Hence knowledge on genetic diversity of avocado is essential for selection of superior genotypes. Currently, the information on genetic diversity of Indian avocados is limited. Therefore, an intensive survey was carried out in major avocado growing areas of India to collect 83 diverse accessions. The collected accessions were characterized for 27 characters using IPGRI, avocado descriptors. Among the characters studied, 2 characters were dimorphic and remaining 25 were polymorphic. The maximum accessions showed the presence of rough trunk surface (48.19%), oval leaf shape (44.58%), acute leaf base (86.75%) and leaf apex (72.29%). The dominance of light green fruit colour (38.55%) with smooth peel surface (54.22%) was noticed. The wide variability for pulp and seed characters was also documented. The principal component analysis and cluster analysis showed the existence of wider variability among the collected accessions. The existence of huge diversity helps to conserve trait specific accessions and varietal improvement through selections and hybridizations.
|
| first_indexed | 2024-04-10T06:58:23Z |
| format | Article |
| id | doaj.art-9462866b8b1d41daac04e8aba17fad01 |
| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-04-10T06:58:23Z |
| publishDate | 2023-02-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-9462866b8b1d41daac04e8aba17fad012023-02-28T05:53:58ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192023-02-0193210.56093/ijas.v93i2.132039Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological charactersMURALIDHARA B M0SAKTHIVEL T1KARUNAKARAN G2VENUGOPALAN R3VENKATRAVANAPPA V4SIDDANNA SAVADI5KARTHIK NAYAKA V S6SHIVASHANKARA K S7HONNABYRAIAH M K8ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaICAR-Directorate of Cashew Research, Puttur, KarnatakaICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, IndiaCollege of Horticulture, Bengaluru, University of Horticultural Sciences, Bagalkote, Karnataka Avocado (Persea americana Mill.) is emerging as one of the high-valued fruit crops in India. Recently, demand for avocados is increasing due to the high nutritional value of the fruits. Currently, avocados are not grown on large commercial scale and there is a need of good high yielding varieties for commercial cultivation. Hence knowledge on genetic diversity of avocado is essential for selection of superior genotypes. Currently, the information on genetic diversity of Indian avocados is limited. Therefore, an intensive survey was carried out in major avocado growing areas of India to collect 83 diverse accessions. The collected accessions were characterized for 27 characters using IPGRI, avocado descriptors. Among the characters studied, 2 characters were dimorphic and remaining 25 were polymorphic. The maximum accessions showed the presence of rough trunk surface (48.19%), oval leaf shape (44.58%), acute leaf base (86.75%) and leaf apex (72.29%). The dominance of light green fruit colour (38.55%) with smooth peel surface (54.22%) was noticed. The wide variability for pulp and seed characters was also documented. The principal component analysis and cluster analysis showed the existence of wider variability among the collected accessions. The existence of huge diversity helps to conserve trait specific accessions and varietal improvement through selections and hybridizations. https://epubs.icar.org.in/index.php/IJAgS/article/view/132039BreedingDescriptorsFruitGenetic DiversityIPGRI |
| spellingShingle | MURALIDHARA B M SAKTHIVEL T KARUNAKARAN G VENUGOPALAN R VENKATRAVANAPPA V SIDDANNA SAVADI KARTHIK NAYAKA V S SHIVASHANKARA K S HONNABYRAIAH M K Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters The Indian Journal of Agricultural Sciences Breeding Descriptors Fruit Genetic Diversity IPGRI |
| title | Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters |
| title_full | Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters |
| title_fullStr | Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters |
| title_full_unstemmed | Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters |
| title_short | Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters |
| title_sort | survey collection and characterization of indian avocado persea americana germplasm for morphological characters |
| topic | Breeding Descriptors Fruit Genetic Diversity IPGRI |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/132039 |
| work_keys_str_mv | AT muralidharabm surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT sakthivelt surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT karunakarang surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT venugopalanr surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT venkatravanappav surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT siddannasavadi surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT karthiknayakavs surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT shivashankaraks surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters AT honnabyraiahmk surveycollectionandcharacterizationofindianavocadoperseaamericanagermplasmformorphologicalcharacters |