Evaluation of ASN-320 nano-superabsorbent application on water relations and yield of Cucumber at salinity and water deficit conditions

موسوی‌زاده, میرحسن and زارع‌حقی, داود and حسن‌پور, رضا and اوستان, شاهین and پناهنده, جابر Evaluation of ASN-320 nano-superabsorbent application on water relations and yield of Cucumber at salinity and water deficit conditions. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

The present study was carried out in a completely randomized factorial design with three factors and three replications in order to investigate the effect of ASN-320 nano-superabsorbent on water relations and yield of greenhouse cucumber. Factors were nano-superabsorbent (0, 0.2 and 0.5% by weight), soil moisture (70% FC to FC and 40% FC to 70% FC), and soil salinity (1, 3.5 and 6 dS/m). During and the end of the growth period, some characteristics such as stomatal conductance, relative water content (RWC), shoot dry weight, root dry weight, and fruit yield were measured. The results of the analysis of variance showed that ASN-320 nano-superabsorbent application significantly affected some of the measured characteristics in greenhouse cucumber, so that the main effects of different levels of ASN-320 nano-superabsorbent and soil moisture content on relative water content (RWC), shoot dry weight, fruit dry weight at 1% probability level was significant. The main effect of soil salinity on shoot dry weight was significant at 5% probability level. Among the interaction effects of nano-superabsorbent, soil moisture, and soil salinity, only the interaction effect between soil salinity and soil moisture on RWC was significant at 5% probability level.

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