不同灌溉方式对杂交粳稻皖旱优1号产量和稻米品质的影响

以水旱兼用的早熟中粳杂交稻皖旱优1号为试验材料，研究不同灌溉方式对其产量及稻米品质的影响。结果表明：无水层灌溉与常规灌溉相比，株高变矮，穗长、有效穗数、穗总粒数和穗实粒数均增加，千粒重减小，2a增产分别为14.1%、8.2%。无水层灌溉的垩白粒率和垩白度均降低，胶稠度增加，糙米率、直链淀粉含量有增加趋势，粒长变长，粒宽变小，整精米率略有下降，对稻米品质总体上有所改善。

Effect of different irrigation methods on yield and quality of the japonica hybrid rice Wanhanyou 1

Effects of different irrigation style on rice yield and quality were studied, with paddy-upland medium-maturing japonica hybrid rice "wanhanyou1". The experimental results indicate that: Under no water layer irrigation, plant height was short, ear length, number of panicles, total number of grains per panicle and number of filled grains per panicle increased, while 1000-grain weight decreased. The yield respectively increased 14.1% and 8.2% in two test years. Under no water layer irrigation, chalky rice rate and chalkiness decreased, gel consistency improved, brown rice rate and amylose content increased, grain length become length, grain width narrowed, and head milled rice rate slightly decreased. Rice quality was improved under no water layer irrigation.