超级小麦郑麦7698生长发育特性及其配套技术研究

为配合优质强筋小麦新品系郑麦7698的推广,采用大田攻关和小区试验相结合,探讨郑麦7698生长发育特点和超高产配套栽培技术.结果表明,郑麦7698自动调节能力强,分蘖成穗中等;籽粒灌浆期长,粒质量增加快,每1000粒日增重平均达2.1 g;在大于10 500 kg/hm2产量水平下,郑麦7698产量结构为穗数648万穗...

Research on the Development Characteristics and the Cultivation Techniques of Super-wheat Zhengmai 7698

In order to coordinate with the promotion of the strong gluten wheat variety,Zhengmai 7698,the growth characteristics of Zhengmai 7698 and the relevant super-high yield cultivation technique were analyzed according to the researches in the field and experiments in small areas.The results showed as follows: Zhengmai 7698 had the automatic adjustment ability and moderate tiller;it 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;under the condition of super-high yield,the dry matter weight of Zhengmai 7698 was mainly from the photosynthate after flowering.When the yield of Zhengmai 7698 was more than 10500kg/ha,the structure of its output was 6480000 spikes/ha,37.5 grains per spike,and 1000-seed weight of 47.2g;when its yield was 9750-10500kg/ha,the structure of its output was 5880000 spikes/ha,38.1 grains per spike,and 1000-seed weight of 46.3g.The relevant cultivation techniques of super-high yield: intensive cultivation to improve the quality of field;increased fertilization of the organic fertilizer and heavy application of the base fertilizer;giving sufficient moisture and fine seeding to ensure full and uniform seedlings;and improving the regulation during the wheat growth according to the field,the seedlings and the weather.