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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Int.J.Curr.Microbiol.App.Sci.2019.8(10): 905-910
DOI: https://doi.org/10.20546/ijcmas.2019.810.105


Physiological Basis of Screening Rice Varieties for Low Temperature Stress Tolerance
Anderson Amalan Kumar1 and K. Krishna Surendar2
1Department of Crop Physiology, AC & RI, TNAU, Kudumiyanmalai, India
2Department of Crop Physiology, AC & RI, TNAU, Coimbatore, India
*Corresponding author
Abstract:

A field experiment was conducted at the Regional Research Station, Paiyur main farm with the varieties viz., ADT 38, ADT 39, ADT 43, Anna 4, Bhavani, BPT 5204, CO43, IR 20, IR 42, IR 50, K 429, Karuppunel, Kottanel, MDU 3, MDU 4, MDU 5, Paiyur 1, PS 1, PS 2,PS 3, Savulu samba and White Ponni The experiment was designed for screening the rice cultivars for low temperature stress tolerance through the physiological and biochemical responses. The experiment was laid out in RBD with three replications and twenty two varieties. The rice seedlings were transplanted in the main field with the spacing of 22.5 x 22.5cm during late sampa season (October 2014). The results of experiment explained that maximum plant height was observed in Kottanel and Doddabayarunel and root length was maximum in ADT 38 and was followed by Paiyur 1 and Bhavani at 0th DAT. At 30 DAT maximum plant height was observed in Kottanel. Root length was maximum in BPT 5204 maximum number of tillers was observed in ADT 38 and was followed by IR 20 which recorded highest number of leaves per plant. At 60 DAT, maximum plant height was observed in Karuppunel. Root length was maximum in Bhavaniand maximum number of tillers was observed in IR 20.Anna 4 which recorded highest number of leaves per plant. At 90 DAT, maximum plant height was observed in DBN. Root length was maximum in White ponniand maximum number of tillers was observed in PS 3.Maximum grain yield ha-1 was recorded in the variety MDU 3 and was closely followed by MDU 4 and CO 43 and were on par with each other.


Keywords: Rice, Low temperature, Morphological, Physiological and yield
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How to cite this article:

Anderson Amalan Kumar and Krishna Surendar, K. 2019. Physiological Basis of Screening Rice Varieties for Low Temperature Stress Tolerance.Int.J.Curr.Microbiol.App.Sci. 8(10): 905-910. doi: https://doi.org/10.20546/ijcmas.2019.810.105