播期、播量对小麦品种阜航麦1号生长的影响OA

To explore the suitable sowing time and sowing rate of wheat variety Fuhangmai No.1,3 sowing time were set in the experiment:October 18,October 25,and November 1.For each sowing time,5 sowing rates were applied:120,150,180,210,and 240 kg/hm2.The tiller number,plant height,grain yield,and yield components of wheat under each treatment were examined.The results indicated that under the same sowing time condition,as the sowing rate increased,the maximum tiller number and effective spike number of wheat generally showed an increasing trend;under the same sowing rate condition,the tiller number,tiller per plant,and effective spike number under different sowing time exhibited higher values with early sowing than late sowing.Under the same sowing time conditions,the length of the first and second nodes and plant height of the base of Fuhangmai No.1 increased with increasing sowing rate,while the spike length decreased with increasing sowing rate.The highest yield(9 850.2 kg/hm2)was obtained under the treatment with the sowing time of October 18 and a sowing rate of 180 kg/hm2.The second highest yield(9 758.2 kg/hm2)was achieved under the treatment with the sowing time of October 25 and a sowing rate of 210 kg/hm2.The third highest yield(9 752.5 kg/hm2)was recorded under the treatment with the sowing time of October 18 and a sowing rate of 210 kg/hm2.It was concluded that the suitable sowing time for Fuhangmai No.1 was from October 18 to October 25,and the recommended sowing rate was between 180 and 210 kg/hm2.