[目的] 探索绿旱1号的节水特性。[方法] 比较绿旱1号及原始受体“6527”在有水层管理和无水层旱管条件下的生育期和经济性状。[结果] 在无水层较有水层节水67.4%的条件下，“绿旱1号”在无水层旱管方式下两个品种生育期均延长3~5 d。其穗实粒数、结实率和产量较水管条件下均有较小的降幅，但未达显著水平，而受体“6527”主要农艺性状和经济性状指标降幅度较大，达显著或极显著水平，其中穗总粒数、穗实粒数和产量降幅最大，均超过40%，且达极显著水平； [结论] “绿旱1号”具有高效、节水特性。

[Objective] Studies on the water-saving of LvhanNo.1.[Method] Growth period and economic characters of all-water layer supply and non-water layer supply were compared.[Result] It indicate that the growth periods of LvhanNo.1 and 6527 all lengthen 3~5 days by non-water layer, which save 67.4% water compare by all-water layer. LvhanNo.1 decreasing range was not remarkable, which conclude of No. of filled grains per panicle，seed setting rate and yields. The main agronomic characters of 6527 decreased range was larger and remarkable, especially it’s the spikelets per panicle，the filled grains per panicle and yields，which significantly decreased by over 40 % .[Conclusion] It is suggested that LvhanNo.1 is high efficient water saving characteristics.