The total collection in mango stands at 538. Evaluation of germplasm showed that the variety Sora had the maximum fruit weight (1166 g) followed by the variety Tenneru (945 g). It was found to be minimum in Kalakai (88 g). Screening of the 32 mango varieties for fruit fly showed that the varieties Bhuto Bombay and Virudhunagar when exposed to fruit fly under artificial conditions did not record any infestation. The varieties Gopal Bhog, Bhutto Bombay, Manipur, Manibhatta Appe and Virudhunagar did not show any stone weevil infestation.
The total collection in guava stands at 76 including five species.
Germplasm of 33 Sapota accessions are being maintained in the field. An open pollinated seedling progeny of Cricket Ball (no.63) isolated has been multiplied by grafted and 20 grafts are planted in field for further evaluation.
Nine accessions of Jamun were collected from various sources like KRCC, Arabhavi (6 accessions), CISH, Lucknow (2 accessions) and one Konkan Bahadoli from Regional Fruit Research Station, Vengurle.
At present, 42 accessions of underutilized fruits are being maintained. A total of 19 accessions in jackfruit and 9 in pummelo have been evaluated. The accession G-65 continued to be superior in jackfruit. In pummelo, a pink pulped accession has also been found good with respect to quality.
At present 32 accessions including two species are being maintained. The evaluation of the intergeneric hybrid progenies for PRSV, a few progenies are showing tolerance in addition to good fruit quality.
As pollen germination under stress is one of the indirect ways of assessing drought tolerance, different accessions of Carica papaya were evaluated by artificial pollen germination. Amongst the 32 accessions tried, V. cauliflora, Dwarf Lilly and CO6 recorded pollen germination over 50 per cent.