江淮下游不同播期对稻-麦周年作物产量、品质及温光资源利用的影响

陈天晔, 袁嘉琦, 刘艳阳, 许轲, 郭保卫, 戴其根, 霍中洋, 张洪程, 李国辉, 魏海燕

Effects of different sowing dates on crop yield, quality, and annual light-temperature resources utilization for rice-wheat double cropping system in the lower reaches of the Yangtze-Huaihe Rivers valley

Tian-Ye CHEN, Jia-Qi YUAN, Yan-Yang LIU, Ke XU, Bao-Wei GUO, Qi-Gen DAI, Zhong-Yang HUO, Hong-Cheng ZHANG, Guo-Hui LI, Hai-Yan WEI

表1 播期对不同品种水稻主要生育时期的影响

Table 1 Effect of sowing date on main growth and development stages of different rice varieties

品种 Cultivar 播期 Sowing date 拔节期 Jointing stage (month/day) 抽穗期 Heading stage (month/day) 成熟期 Maturity stage (month/day) 总天数 Total days (d) 南粳9108 Nanjing 9108 R-I 7/25 8/24 10/27 158 R-II 7/29 8/27 10/30 154 R-III 8/2 8/31 11/3 151 连粳11 Lianjing 11 R-I 7/21 8/22 10/22 153 R-II 7/25 8/25 10/24 148 R-III 7/28 8/28 10/27 144