Sapota germplasm of 46 accessions were maintained and evaluated. Generated hybrids and half sib progenies of PKM-1, Cricket ball and Kalipatti. In Jamun 110 accessions were collected from different parts of the country and 55 collections are maintained in field conditions. Maintained, characterized and evaluated banana germplasm. Genetic and G x E studies were made. Experiments on varietal evaluation were done among important commercial cultivars. An analysis of cross compatibility in banana varieties were made to asses seed set. Clonal collections of Ney poovan or Elakki bale were done. Studies on karyotype, Nuclear DNA content and RAPD were made. Mapping populations of F 1 hybrids were generated for Fusarium wilt disease, water stress, B genome mapping and nematode resistance for functional genomics studies. Developed a SCAR marker for Fusarium wilt disease resistance. Efforts were made to generate inter generic hybrids of Ensete superbum x M.balbisiana, the hybrids generated were found to be apomictic in nature. In acid lime, a hybrid ‘Rasraj’ which is tolerant to citrus bacterial canker disease was released at institute level. At CPCRI (1985 to 89): Worked on collection conservation characterization and breeding aspects of plantation crops like Arecanut and Cacao. Two cacao varieties have been identified.
Research papers ( Best 10 papers):
- Rekha. A., K.B.A. Khader & B.S.Chudhary. (1988) Yielding behavior of 'Mangala' Arecanut in comparison with Local south kanara types. Journal of Plantation crops (Supplement) 47-51.
- Rekha. A and M.B.N.V. Prasad (1992). A note on poly – embryonic studies in some promising acid lime clones. Progressive Horticulture, 24(3-4); 235-236.
- Rekha.A. and M.B.N.V. Prasad (1993). Genetic variability and character association in banana. Indian Journal of Horticulture. 50(1) 36-40.
- Rekha.A and M.B.N.V. Prasad (1995). Path co-efficient analysis of yield and quality components in banana. Indian Journal of Horticulture. 52(4):239-243.
- Rekha.A, R.D.Rawal and M.B.N.V. Prasad (1996).Screening banana germplasm against fusarium wilt .Indian Journal of Horticulture 53(1); 42-45.
- Nair R.V. and A. Rekha (1996). In-compatibility in cocoa germplasm. Indian Journal of Genetics and plant Breeding. 56(2); 17-20.
- Rekha.A K.V.Ravishankar, Anand. L and Hiremath, S.C. (2001) Genetic and genomic diversity in banana (Musa species and cultivars) based on D2 analysis and RAPD markers. Infomusa 10(2) 29-34.
- Rekha. A and S.C.Hiremath (2008). Chromosome studies and karyotype analysis of some triploid banana (Musa species) cultivars of AAA genomic group. Journal of Horticultural sciences, Vol.3 (1): 30-34.
- Rekha. A and S.C. Hiremath. (2009). Karyoanalysis among diploid banana (Musa species) accessions. The Icfai University Journal of Genetics & Evolution. Vol. II, No.3, P.66-73.
- Rekha, A., Ravishankar, K.V. and Ambika, D.S. 2011. Generation of segregating f1 populations for mapping the musa genome. Acta Horticulture. (ISHS) 897:Pp. 277-278.
- V.Swarupa, K.V.Ravishankar and A.Rekha (2013). Characterization of tolerance to Fusarium oxysporum f.sp., cubense infection in banana using suppression subtractive hybridization and gene expression analysis. Physiological and Molecular Plant Pathology. 83: 1-7.
- V.Swarupa, K.V.Ravishankar and A.Rekha (2014). Plant defense response against Fusarium oxysporum and strategies to develop tolerant genotypes in banana. Planta. published Online: DOI 10.1007/s00425-013-2024-8.Print: Planta: Volume 239, Issue 4 (2014), Page 735.
- Fruit Breeding. Edited by M.R.Dinesh (chapters on Banana, Sapota and Jamun breeding)
- Omics approaches in Banana, Citrus, Grape, Guava, Mango, Papaya and Pomegranate. By Ravishankar KV., Kanupriya, Rekha A., Anuradha Upadhyay, Vasugi C., Vijayakumari N., Pooja Kishnani and Dinesh MR. Book Entitled: OMICS applications IN CROP SCIENCE. Edited by, Debmalya Barh.
- One of the Editor’s for Book: “Quality seeds and planting material in Horticultural crops”. Proceedings of National Conference on Production of Quality Seeds and Planting Material: Health management in horticultural crops.
- Banana and Plantain: S. Uma, M.S. Saraswathi, A. Rekha and K.V. Ravishankar. In: Advances in Horticulture Biotechnology Molecular Markers and Marker Assisted Selection Volume iii: Fruit Crops, Plantation Crops and Spices. Edited by: H.P. Singh, V.A. Parthasarathy & K. Nirmal Babu
- Mutation breeding in fruit crops.(Book Entitled-Impact of climate change on fruit crops change on fruit crops)
- Received Smt. Anne Shikhamany Award for 2008-09 for best research paper published in Journal of Horticultural Sciences.