【作者】 文浩； 卢浩宇； 易镇邪； 周铁军；

【Author】 WEN Hao;LU Haoyu;YI Zhenxie;ZHOU Tiejun;College of Agronomy,Hunan Agricultural University;Hunan Liangtian Agricultural Science and Technology Development Co.,Ltd;

【机构】 湖南农业大学农学院； 湖南粮田农业科技发展有限公司；

【摘要】 以紫米稻品种粮田紫1号为材料,在长沙地区比较研究了5个播期条件下紫米稻的产量与稻米品质。结果表明,粮田紫1号全生育期随播期推迟而明显缩短;有效穗数、每穗粒数、结实率与产量均随播栽期推迟而显著提高,5月31日播种处理产量达4 693.0 kg/hm~2;播期对粮田紫1号稻米品质有显著影响,碾米品质以5月11日播种处理最好,5月21日播种处理次之,稻米直链淀粉含量、粗蛋白含量与Se含量以5月21日播种处理最高,稻米Zn含量以5月31日播种处理最高。综合来看,粮田紫1号在长沙地区高产优质栽培的最佳播期为5月21-31日。更多还原

【Abstract】 A field experiment was carried out to study the effects of different sowing dates on grain yield and quality of purple rice Liangtianzi 1 in Changsha region.The results showed that the whole growth period of Liangtianzi 1 was shortened with the delay of sowing date.The effective panicles,grains per panicle,seed setting rate and yield were significantly increased with the delay of sowing date,and the yield of May 31^st treatment was 4 693 kg/hm².Rice quality of purple rice was affected by sowing date.The treatment with the best milling quality was May 11^st treatment,and the next was May 21^st treatment.The highest content of amyIose,crude protein and Se in grain was gained with May 21^st treatment,while the highest content of Zn in grain was gained with May 31^st treatment.Comprehensively,the optimal sowing date of Liangtianzi 1 for higher yield and fine quality in Changsha region was May 21^st to May31^st.更多还原