Abstract:

Effects of both dry seeding and drought irrigation（DSDI） and wet seeding and moist irrigation（WSMI） on the yield and quality of rice were studied with seven indica cultivars as materials. The results showed that compared with WSMI, the yields of DSDI treatments were reduced by different degrees, the spike number, spikelet number per panicle and 1 000-grain weight of DSDI treatments were significantly lower than WSMI treatments, the seed setting rate performance different of different varieties; the amylose content, milled rice rate and head rice rate were increased significantly, DSDI has a positive effect on improving rice quality.

Key words: rice, dry seeding and drought irrigation, yield, quality

摘要：

以7个籼型水稻品种（组合）为材料，研究了旱种旱管栽培对水稻产量和稻米品质的影响。结果表明，在旱种旱管条件下，7份材料产量较水种水管栽培均有不同程度减产，产量构成因子中，有效穗数、每穗颖花数及千粒重极显著显降低，结实率表现因品种而异；稻米直链淀粉含量、精米率和整精米率明显提高，旱种旱管对于改善稻米品质有一定的积极作用。

关键词: 水稻, 旱种旱管, 产量, 品质