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 major production constraint for okra is yellow vein mosaic disease, causing losses with regard to the quality and as well as the yield. This is a viral disease occurring on bhendi. Yellowing of the entire network of veins in the leaf blade is the characteristic symptom. In severe infections, the younger leaves turn yellow to become entirely chlorotic and the plant is highly stunted. Hence, we have studied the photosynthetic rate, Transpiration rate and Stomatal conductance in the virus infected plant and was compared with the non – infected plant with same moisture content. There was a very high difference in the photosynthetic rate of infected plant and healthy non -infected plant. Virus infected plant was recorded with zero photosynthetic rate (-0.71) and healthy plant was recorded with a photosynthetic rate of 11.29 at the fruit development stage of bhendi. At the same moisture content, the transpiration rate of infected plant was near equivalent to the healthy non infected plant which confirmed that the transpiration and stomatal conductance is occurring in infected plant and only the disturbance in the plant system is due to lack of chlorophyll and photosynthesis.
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