I observed that SPAD readings in cassava plants supplemented with irrigation were higher as compared to the plants grown under water deficit stress condition. I found the reverse trend in other research paper. Is it possible? Is there any possible explanation for this?? I shall be grateful if any research paper is provided reporting the same findings.
Thank you in advance
The SPAD value or chlorophyll conent may show increases trend with the water stressed / water decifit increases. This might be due to concentration of chlorophyll pigmenst due to small leaf area in water stressed plants. Eventhought the values are higher in decifit plants it will have less photo assimilation rate which would ultimately reflect on its sink biomass (fruit yield). I suggest you to check the PS-II efficiency of irrigated and deficit plant for more insights.
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