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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(2): 1224-1229
DOI: https://doi.org/10.20546/ijcmas.2020.902.145


Assessment of Flowering Response in Traditional Rice Varieties of Karnataka to Photo Period
Nandini1*, E. Gangappa2, B. Mahesha3, M. P. Rajanna4, P. Mahadevu4,Ramesh2, Venkatesh1 and Shailaja Hittalmani2
1Department of Genetics and Plant Breeding, UAS, Dharwad-580005, India; 2Department of Genetics and Plant Breeding, UAS, GKVK, Bengaluru-560065; 3ICAR-Indian Institute of Horticultural Research, Hesarghatta Lake Post, Bengaluru-560089; 4 Zonal Agricultural Research Station, V.C. Farm, Mandya-571405, India
*Corresponding author
Abstract:

Photoperiod influences several aspects of plant growth. The overall growth and development of plants and flowering are dependent on sunlight. The transition from vegetative to reproductive phase (flowering) is one of the most important decisions a plant has to take in order to guarantee the success of its offspring. Rice is sensitive to photoperiod; hence, a study was undertaken to know the flowering responses of 324 traditional rice varieties (TRV’s) of Karnataka to photoperiod, during two distinct season’s viz., kharif (2011) and summer (2012) at ZARS V.C Farm Mandya. The results of the study showed that, all the 324 TRV’s flowered during kharif with a wide range for 50% flowering (65 to 124 days). The same set of TRV’s after discarding duplicates was raised during summer and the results showed that, 64 TRV’s did not flower; 225 flowered with a wide range for days to 50% flowering (71 to 124 days). The study clearly establishes the fact that, flowering in rice cultivars exhibit a wide range of variation in their degree of sensitivity to photoperiod.


Keywords: Flowering response,Traditional rice varieties,Photo period
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How to cite this article:

Nandini, B., E. Gangappa, B. Mahesha, M. P. Rajanna, P. Mahadevu, S. Ramesh, Venkatesh and Shailaja Hittalmani. 2020. Assessment of Flowering Response in Traditional Rice Varieties of Karnataka to Photo Period. Int.J.Curr.Microbiol.App.Sci. 9(2): 1224-1229. doi: https://doi.org/10.20546/ijcmas.2020.902.145