不同播种期对凉山圆根植株性状及产量的影响

摘要

The yield and characteristics of Brassica rapa L. were studied in this paper to dis-cuss the effect of sowing date. Results showed that sowing dates had significantly effect on Brassica rapa L.,the number of terminal buds and blades sowing on July 20th were 23% and 8% more than that of sowing on August 5th,and 24.8% more than that of sowing on August 20th,but the mass of roots decreased 34% and 65%,the total product decreased 24.8% and 43.1%. So the most suit-able sowing date was in middle-last of July.%本试验研究了3个不同播种期对凉山圆根（Brassica rapa L.）植株性状及产量的影响，结果显示：7月20日播种的圆根顶芽数和顶芽叶片数比8月5日播种的分别多出23%和8%，比8月20日播种的分别多出43%和20%；但块根质量下降了34%和65%，总产量较8月5日播种的下降24.8%，较8月20日播种的下降43.1%。试验表明凉山圆根在7月中下旬播种产量最高。