Effects of Sowing Date and Seeding Rate on Growth Period, Plant Height and Yield Characters of Xinmai 23
Li Xiaohang
Sheng Kun
Yang Lijuan
Abstract：Different sowing dates and seeding rates were designed to study their effects on the growth pe-riod, plant height , yield and its components of Xinmai 23 .The results showed that with the delay of sowing date in a certain range , the yield and spike number per hectare decreased gradually , the plant height de-clined, and the grain number per spike had decreasing trend with no significant difference , but the 1 000-grain weight increased gradually .With the increase of seeding rate , the spike number per hectare and plant height increased , while the grain number per spike showed decreasing trend;the 1 000-grain weight had no obvious change .When sowing on October 10 or 18 , the highest yield could be obtained under the treatment with the seeding rate as 180 kg/hm2 .When sowing on October 25, the effect of seeding rate on yield was lit-tle.In a word,the optimal sowing date and seeding rate were October 18 and 180 kg/hm2 respectively under the test conditions .
Keywords：Xinmai 23Sowing date and seeding rateYield
Publication Date：2015-05-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 37-39 )