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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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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(6): 1047-1053
DOI: https://doi.org/10.20546/ijcmas.2019.806.128


Different Degree of Drought Stress Affects Morpho-Reproductive Growth in Wheat (Triticum aestivum L)
Bhav Kumar Sinha1, Gurdev Chand1, Reena2 and Vijay Kumar3
1Division of Plant Physiology, Faculty of Basic Sciences, SKUAST –J, Chatha, India
2ACRA, Dhiansar, Bari-Brahmana, SKUAST – Jammu, Bari Brahmana, India
3RRSS for Sub tropical fruits, Raya, SKUAST-Jammu, India
*Corresponding author
Abstract:

Experiment was carried out to study the impact of induced water stress at different crop developmental stages for morpho-reproductive growth characters in two wheat cultivars at experimental area of Division of Bio chemistry and Physiology SKUAST J, in 2013. The experiment was laid out with two wheat varieties i.e., PBW-343 and RSP-81 with 04 water stress levels. T1 (without withholding of water), T2 (10 days with-holding of water [WOW]), T3 (15 days WOW) and T4 (20 days WOW) were applied. Increased water stress significantly reduced the plant height, number of leaves per plant, leaf area per plant, fresh and dry weight of leaves, stem and roots per plant, number of tillers per plant, number of fertile tillers per plant and number of unfertile tillers per plant in both wheat varieties. About 39.86 and 26.19% reduction in plant height was noticed at 20 days withholding of water in variety PBW-343 and RSP-81, respectively as compared to control. Number of leaves per plant was reduced by 50 and 14.28% at highest drought condition in variety PBW-343 and RSP-81 respectively in comparison to control. Likewise, leaf area also reduced by 22.11 and 21.33% in variety PBW-343 and RSP-81, respectively. Fresh weight of leaf decreased by 75 and 76.15 % in variety PBW-343 and RSP-81, respectively in comparison to control at 20 days WOW. Same trend was noticed in fresh weight of stem and roots per plants. Dry weight of leaves per plant significantly decreased by 67.24 and 63.88% at highest duration of drought stress in variety PBW-343 and RSP-81 respectively in comparison to control. Likewise dry weight of stem per plant also reduced by (53.69 and 72.18%) and roots per plant (29.41 and 15.38%) in comparison to control. Number of unproductive tillers increased by 50% in variety PBW-343 and number increased in drought resistant variety RSP-81 with regard to control whereas number of productive tillers is reduced by 71.42 and 33.33% in variety PBW-343 and RSP-81, respectively in comparison to control at 20 days WOW. Besides reduction in these parameters, RSP-81 showed some resistance to water stress as compared to PBW-343. Besides reduction in these parameters, RSP- 81 showed some resistance to water limiting condition as compared to PBW-343.


Keywords: Wheat, Water stress, Morphological traits, Reproductive traits, RSP -81, PBW-343
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How to cite this article:

Bhav Kumar Sinha, Gurdev Chand, Reena and Vijay Kumar. 2019. Different Degree of Drought Stress Affects Morpho-Reproductive Growth in Wheat (Triticum aestivum L).Int.J.Curr.Microbiol.App.Sci. 8(6): 1047-1053. doi: https://doi.org/10.20546/ijcmas.2019.806.128