Evaluation of different saline water regimes (sewage) on rice salinity tolerant lines in Khuzestan
2013
Gilani, Abdolali; | Jalali, Sami.
This study was carried out in split-plot design randomized as RCBD with 3 replications in Shavoor Agricultural Research Station, Ahwaz. Three levels of water regimes of sewage were included (continues, one and two days intervals or I1, I2 and I3) as main plots and five cultivars selected of IRSSTN- 2010 (The Thirtieth International Rice Soil Stress Tolerance Nursery) (V1, V2, V3, V4and V5) as sub plots. The results showed that, there were no significant difference among water regimes in all of characteristics but significant difference was observed among cultivars for grain yield, harvest index, panicle fertility,thousand grain weights, fifty percent panicle exertion and plant height at %1 level and for grain per panicle and tiller number at 5% level. But no significant difference among water regimes was observed in total dry matter. The highest grain yield was obtained in V4 and with 2333.1 kg/ha. But it was in range of 1627.2 to 2123.4 kg/ha in I1, I2 respectively. The highest and lowest rates of water use efficiency were in I1 and I2 with mean of 0.05 and 0.22 kg/m3 respectively. Base on the results obtained, using of drain water can lead to rice production increasing in Khuzestan province.
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