Effects of Different Cultivation Technologies on Grain Yield and Quality of Winter Wheat

Shi Yuhua; Dai Xinglong; Zhou Xiaoyan; Tian Qizhuo

doi:10.14083/j.issn.1001-4942.2016.08.007

Abstract：In this study,four kinds of cultivation technologies were designed to investigate their effects on grain yield and quality of winter wheat,which integrated plant density,sowing date,nitrogen fertilizer and irrigation.They were the low -density and intensive sowing technology (T1),the stable and optimized inten-sive sowing technology (T2),the medium -density and suitable late sowing technology with limited irrigation (T3)and the high -density and late sowing technology with limited irrigation (T4).The cultivar Jimai 20 and Tainong 18 were used as test materials.The results showed that the spikes per unit area increased gradually and the kernels per spike and the kernel weight reduced under the treatments from T1 to T4.The grain yield of T2 was the highest,and was not significant with that of T1.The lowest grain yield was observed under T4 treatment.The grain quality was the best under T2 treatment,but it showed obvious variety specificity.For Ji-mai 20,T2 treatment influenced the quality mainly through optimizing the zeleny sedimentation value,dough development time and dough stability time,but had no significant effects on protein and wet gluten contents and moisture absorption.For Tainong 18,T2 treatment mainly influenced the wet gluten content,zeleny sedi-mentation value and dough stability time,but had no significant effects on protein content,moisture absorption and dough development time.In conclusion,the stable and optimized intensive sowing technology (T2)was more benefit to the increase and improvement of wheat yield and quality,thus achieving the high -yielding, good -quality and high -efficiency production.