Research on the Yield Formation Characteristics of Zheng-Wheat 7698 under the Super-High Yield Condition

In line with the promotion of Zheng-wheat 7698 with strong gluten, this article analyzed the growth of Zheng wheat 7698 and the relevant super-high yield cultivation technique according to the researches in the field and experiments in small areas. The results show as follow: under the super-high yield condition, Zheng-wheat 7698 had a long period of grain filling, and the weight of grain in filling stage increased fast, with an average of 2.1 grams of one thousand grains per day; the leaves of Zhegn-wheat 7698 stuck out and had good light transmittance, and the top-three leaves had long functional period; under the super-high yield condition, the index of the leaf area came to 7.63, the index of the top three leaves was 5.01 and the index of the flag leaf was 1.69; the dry matter weight of Zheng-wheat 7698 was mainly from the photosynthate after flowering; Zheng-wheat 7698 >; 10500kg/hm2, the structure of its output was 6480000 spikes/hm2, 37.5 grains per spike, and one thousand grains´ weight was 47.2g; 9750~10485kg/hm2, the structure of its output was 5880000 spikes/hm2, 38.1 grains per spike, and one thousand grains´ weight was 46.6g.