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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 (2017)
[Effective from January 1, 2017]
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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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(11): 2176-2191
DOI: https://doi.org/10.20546/ijcmas.2018.711.244


Physiological and Biochemical Evaluation of Maize Hybrid Germplasm Lines for Drought Tolerance under Receding Soil Moisture Conditions
Vadlamudi Dinesh Rahul1, Rajendra Kumar Panda2, Devraj Lenka3 and G.R. Rout2
1RRU Crop Physiology, RARS, Lam, ANGRAU, Guntur, India
2Department Plant Physiology, OUAT, Bhubaneswar, India
3Department Plant Breeding & Genetics, OUAT, Bhubaneswar, India
*Corresponding author
Abstract:

A field experiment was conducted during Rabi 2015 in a Randomized block design (RBD) with three replications to screen 12 hybrid maize germplasm lines viz., Z630-1, Z630-2, Z630-3, Z630-4, Z637-1, Z637-2, Z695-1, Z695-2, Z695-3, Z638-1, Z638-2, Z638-3 along with three hybrid checks NK6240, P1O3396 and 900MGold. This study was carried out to screen the hybrid germplasm lines exposed to water deficit stress during the reproductive growth stage. The analysis of variance revealed significant differences among the test germplasm line for all the parameters recorded. The direct measurement of RWC and LWP which are considered as consensus estimates of plant water status revealed that Z695-3 (92.32%, -1.84 Mpa) and Z638-2 (89.33%, -1.79 Mpa) are drought tolerant lines along with high yield potential. The biochemical traits include Proline accumulation, epi-cuticular wax content, calcium content and the chlorophyll content, the calcium content is negatively associated with the yield, the leaf wax content and the Proline at 15 DASi observed to be recorded in high yielding germplasm line. The proline content, RWC, LWP and CSI are the most reliable parameters for the phenotypic drought tolerant screening.


Keywords: Maize, Water stress, Relative Water Content (RWC), Leaf Water Potential (WP), Proline, Epicuticular wax, Cell Membrane Stability (CMS), Chlorophyll Stability Index (CSI)
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How to cite this article:

Vadlamudi Dinesh Rahul, Rajendra Kumar Panda, Devraj Lenka and Rout, G.R. 2018. Physiological and Biochemical Evaluation of Maize Hybrid Germplasm Lines for Drought Tolerance under Receding Soil Moisture Conditions.Int.J.Curr.Microbiol.App.Sci. 7(11): 2176-2191. doi: https://doi.org/10.20546/ijcmas.2018.711.244