National Academy of Agricultural Sciences (NAAS)
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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 2018: 95.39 NAAS RATING 2020: 5.38 |
The Present study was carried out in the wire-netting house of the Krishi Vigyan Kendra, Kalahandi during Rabi 2014-15.The objective of the present endeavour was to screen 6 number of Paddy varieties (early group,75-85 days) for higher photosynthetic efficiency with higher productivity under simulated moisture stress conditions. The experiment was laid out in a factorial CRD with three stress treatments and three replications. The study revealed that moisture stress imposed root density in all the varieties. However, the variation among them has found to be statistically significant. Varieties like Kalinga-III (V3) (V4), Rudra (V5), Sankar, and Heera (V1) were found superior to other varieties, on the basis of their relative performance under stress prone environments. The study also evinced that moisture stress is highly detrimental to most of the physio-biochemical components investigated in the current search. Owing to imposition of stress the basic physiological process measured in terms of photosynthesis (Pn) significantly reduced. So also other parameters like stomatal conductance (Gs), transpiration rate (E) got affected, but the stress effect was almost negligible on photosynthetic active radiation (PAR).
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