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7 播期对水稻碾米品质及外观品质的影响

Table 7 Effect of sowing date on rice quality and appearance quality in rice

品种 Cultivar 播期 Sowing date 糙米率 BRR (%) 精米率 MRR (%) 整精米率 HMR (%) 垩白度 ChD 垩白粒率 ChR (%) 南粳9108 Nanjing 9108 R-I 84.11 a 71.05 a 67.77 a 6.54 a 20.64 a R-II 83.95 ab 69.30 b 64.14 b 4.93 b 19.91 b R-III 83.50 b 68.88 b 64.01 b 4.34 c 17.67 c CV (%) 0.31 1.35 2.67 17.64 6.51 连粳11 Lianjing 11 R-I 83.80 b 63.91 b 58.06 b 4.21 b 13.36 c R-II 84.28 ab 65.69 ab 59.43 ab 4.35 b 14.27 b R-III 84.67 a 66.06 a 60.60 a 4.73 a 14.76 a CV (%) 0.42 1.44 1.75 4.96 4.11