Cytogenetics, Plant breeding & genetics, Molecular Biology, Plant Biotechnology

1. Development of extra long stable cotton hybrids through gene introgression
2. Development of long staple cotton hybrids with high GP with high micronaire
3. Evaluation of Gossypium barbadense germplasm
4. DNA estimation and comparative karyomorphological studies in ginger cultivars
5. Haploidy induction in Capsicum
6. Breeding improved potato varieties for the eastern Indo-gangetic plains of India
6. Collection conservation and documentation of Potato germplasm for eastern Indo-gangetic plains of India
7. Cytogenetics and reproductive biology of ginger
8. Anther culture in capsicum

1. Hybridization Techniques a) Breeding designs b) Crossing and backcrossing methods
2. Tissue culture techniques: a) Androgenesis b) Somaclonal variation c) Somatic embryogenesis
3. Molecular biological techniques a) Protein Estimation through Poly Acrylamide Gel Electrophoresis b) Isozyme analysis through PAGE c) RAPD, RFLP, PCR technique d) DNA marker based selection in Crop plants

• Dhamayanthi K.P.M. 2005. Karyomorphological and phylogenetical relationship of Gossypium L species. Cytologia :70 (4):421-25

• Dhamayanthi K.P.M and Reddy V.R.K. 2003. Breeding derivatives with desirable traits using chilli (Capsicum annuum L).stocks and popular varieties.J Spices and Aromatic Crops. 14: 107-112

• Dhamayanthi, K.P.M, Sasikumar, B and Ramashree, A.B. 2003. Reproductive biology and incompatibility studies in ginger (Zingiber officinale Rosc). Phytomorphology 53 (2) :123-131

• Dhamayanthi, K.P.M and Reddy, V.R.K. 2001. In vitro induction of haploids in chilli. (Capsicum annuum L) J. Cytol. Genet. 2 (NS): 25-28
  Nirmal Babu, K, Geetha, S.P, Minoo, D, Benny, D, Anu, A, Vimala, J, Dhamayanthi, K.P.M, Krishnamoorthy, B, Ravindran, P.N and Peter, K.V. 2001. Tissue and cell culture research in spices. J. Indian Spice: special Issue.24-27.

• Dhmayanthi, K.P.M. and Reddy, V.R.K. 2001. Biological effects of physical and chemical mutagens and their combinations in chilli (Capsicum annuum. L). J. Nuclear Technique in Agriculture and Biology. 30: 3-4.

• Dhamayanthi K.P.M and Reddy V.R.K. 2001. Effect of mutagens on seed germination in chilli (Capsicum annuum L). J. Nuclear Technique in Agriculture and Biology. 30: (4-5).

• Dhamayanthi, K.P.M and Reddy, V.R.K.2000. Inheritance of clustered fruit character and upright fruit orientation in chilli(Capsicum annuum.L) J. Spices and Aromartic Crops. 10 : 16-18

• Dhamayanthi K.P.M. and Reddy V.R.K. 2000. Induction of autotetraploidy in sweet pepper (Capsicum annuum, L). J. Cytol. Genet. 1(NS): 1-6.

• Dhamayanthi, K.P.M. and Reddy, V.R.K.2000. Cytogenetic effects of Gamma rays and Ethyl Methane Sulphonate in chilli pepper. (Capsicum annuum. L.) Cytologia 65: 129-133.

• Dhamayanthi, K.P.M and Krishnamoorthy, B. 1999. Somatic chromosome number in nutmeg (Myristica fragrans Houtt.). Journal of Spices and aromatic crops. 8 (2): 205-206.

• Sasikumar, B, Chembakam, B. Johnson K George, Remashree, A.B. Devasagayam, S Dhamayanthi, K.P.M. Ravindran, P.N and Peter, K.V. 1999. Characterisation of two interspecific hybrids of Piper. J. Hot. Sci. and Bio technology.74(1)

• Dhamayanthi, K.P.M. 1998. Comparative karyomorphology and DNA estimation studies in Ginger cultivars (Zingiber officinale,Rosc.). Cytologia. 63: 311-315

• Dhamayanthi, K.P.M. and John Zachariah, T. 1998.Studies on Karyology and essential oil constituents in two cultivars of ginger (Zingiber officinale, Rosac). J. Cytol. Genet. 33 (2). 195- 199.

• Dhamayanthi, K.P.M. 1998. Evaluation of red tuber potato hybrids in Eastern Indo Gangetic Plains. J. Indian Potato. Assoc. 25 (1&2) 88-90.

• National seminar on Crop Breeding in Kerala organized by Department of Botany, University of Kerala, Kariavattam, Thiruvanthapuram, Jan 25th 1996

• National Seminar on Biotechnology of spices and Aromatic plants (BIOSAAP) organized by Indian society for Spices in collaboration with ICAR and IISR, Calicut (April, 24-25) 1996.

• National seminar on Potato production, constraints in low productivity areas. (Sept.6-7) at Orissa University of Agriculture and technology. Bhuvaneswar. 1997.

• National Seminar on Modern trends in plant cytogenetics and Biotechnology (Feb. 21-22) Andhra University, Visakhapatam. 1998.

• National Seminar on Modern trends in Plant Science. A.V.C. College. Myladuthurai. (4-6) 1999.

• National symposium on Strategies for potato production marketing storage and processing held at CPRI, Shimla. (Dec.21-23) 1990.

• National symposium on Potato, present and future. (March.1-3) held at CPRS, Modipuram.1993.

• Sixth national symposium on Aphodology held at CPRS. Patna. 1996.

• National symposium on Spices medicinal and Aromatic plants, Biodiversity, conservation and utilization. (NS-SMAP). (Aug 10-12), Calicut, Kerala. 1998

• National symposium on recent trends in Crop improvement for sustainable development. (Jan27-29) Bharathidasan University, Trichirapalli.2000.

• National symposium on relevance of Plant biochemistry and biotechnology- Modern trends. The American college, Madurai. 2001.(March 1-3).

• Diamond Jubilee Symposium on hundred years of Post-mendelian genetics and plant breeding- Retrospect and prospects. (Nov. 6-9) IARI, New Delhi. 2001

• National symposium on 'Molecular approaches for disease management' (10-12th December 2001) organized by Phytopathological society and Indian Institute of Spices Research, Calicut, Kerala, India.

• Eighth Indian Conference on Cytology and Genetics at Bangalore University, Bangalore. (Jan.23-25) 2001.

• National conference on "Role of plant sciences in new millennium''. (Feb. 24-25) DAV. College, Muzaffarnagar.2001