Abstracts
A set of 21 maize inbreds were evaluated for 29 traits for studying the Distinctness, Uniformity and Stability parameters as per the guidelines issued by the Protection of Plant Varieties and Farmers Rights Authority (PPV&FRA), India. Out of 29 traits, five traits were monomorphic, 18 traits were dimorphic, while six traits were polymorphic. The studied quantitative traits were independent and their interaction with environment as well as themselves were negligible as revealed by modified joint regression analysis. The combine over year analysis revealed that five inbreds were completely uniform, for all the MS or MG traits, while rest of the inbreds were non-uniform for 1–4 traits, but within the acceptable limit of uniformity test as per PPV&FRA guideline. Combine over year distinct analysis revealed that all the studied inbreds were found distinct to each other except VQL 1 and CM 212, which showed non-distinctiveness to each other but showed distinctiveness to other 19 inbreds. The present data can be used to develop database for inbreds and also safeguard the ownership issue.
References
Duvick DN (2005) Genetic progress in yield of United State maize (Zea mays Lin.). Maydica 52:193–202
Pandey S, Rajatasereekul S (1999) Economics of plant breeding: the value of shorter breeding cycles for rice in north east Thailand. Field crops 64(1):187–197
Helfer LR (2004) Intellectual property rights in plant varieties: international legal regimes and policy options for national government. FAO, Rome, p 104
Anonymous (2005) Protection of Plant varieties and Farmers Rights Act 2001. PPV&FRA, New Delhi
Prasanna BM, Rao SK, Kalloo G, Singh RB (2008) ‘Varieties of common knowledge’ in the context of plant variety protection. Curr Sci 95(11):1522–1524
Troyer AF, Rocheford TR (2002) Germplasm ownership related inbreds. Crop Sci 42:3–11
Yadav VK, Singh IS (2010) Comparative evaluation of maize (Zea mays L) inbred lines according to DUS testing using morphological, physiological and molecular markers. Agric Sci 1(3):131–142
Joshi DC, Shrotria PK, Singh R, Chawla HS (2009) Morphological characterization of forage sorghum [Sorghum bicolor (L.) Moench] varieties for DUS testing. Indian J Genet 69(4):383–393
Nandita Patra, Agrawal RC, Chawla HS (2010) Assessment of distinctiveness uniformity and stability of basmati rice (Oryza sativa) varieties based on morphological descriptors. Indian J Genet 70(1):48–57
Babic M, Babic V, Prodanovic S, Filipovic M, Andjelkovic V (2012) Comparison of morphological and molecular genetic distances of maize inbreds. Genetika 44(1):119–128
Gupta HS, Agrawal PK, Mahajan V, Bisht GS, Kumar A, Verma P, Srivastava A, Saha S, Babu R, Pant MC, Mani VP (2009) Quality protein maize for nutritional security: rapid development for short duration hybrids through molecular marker assisted breeding. Curr Sci 96(2):232–237
Acknowledgments
The financial support received from the Protection of Plant Varieties and Farmers Rights Authority, New Delhi for the present study is gratefully acknowledged.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gupta, A., Amrapali, S., Kumar, M. et al. Distinctness, Uniformity and Stability Testing in Maize Inbreds. Natl. Acad. Sci. Lett. 39, 5–9 (2016). https://doi.org/10.1007/s40009-015-0398-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40009-015-0398-9