Effects of Seeding Rate on Agronomic Characters and Yield of a New Wheat Variety Xinmai 296
Ren Han
Ma Yunguo
He Junguang
Liu Qiang
Li Yong
Liu Peng
Abstract：A new wheat variety Xinmai 296 was used as experimental material, and three seeding rates were set as 100 kg /hm 2 (A1), 116 kg/hm 2 (A2) and 130 kg/hm 2 to study the effects of seeding rate on its agronomic characters and yield.The results showed that the population of Xinmai 296 increased with the in-crease of seeding rate.The dry matter accumulation showed significant differences between the three treatments from jointing stage to flowering stage with a trend of A2 >A1 >A3.The leaf area index showed A3 >A2 >A1 during overwintering, turning green, jointing and tasseling stages, but A2 >A3 >A1 at grain filling stage. With the increase of seeding rate, the spike rate per hectare increased, but the spike rate, grain number per spike, 1000 -grain weight per spike and spike lenghth declined .The yield and harvest index were the best under A2 treatment.According to the comprehensive analysis , the agronomic traits were the best and the yield was the highest as 7820 kg /hm 2 at the seeding rate of 116 kg /hm 2 (A2), therefore, 116 kg/hm 2 was the opti-mal seeding rate for Xinmai 296 when planted in the Huang -Huai -Hai area.
Keywords：Seeding rateXinmai 296Agronomic traitsYield
Publication Date：2018-05-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 38-42 )