Zhengmai 975 is a high-yield, high-quality noodle-type wheat variety.
Variety origin
Zhengmai 975 is a new high-quality noodle-type wheat variety most recently bred by the Fengyou Breeding Room of the @#@245@#@ Research Institute of the Henan Academy of Agricultural Sciences, and it passed the approval of the Henan Provincial Crop Variety Approval Committee in August 2001.
Yield results
In the two-year provincial high-fertility spring-water group regional trial, the average yield per mu increased by 6.09% compared with the large-scale production control variety Yumai 18 in Henan Province, and its yield ranked first in Jiaozuo, Xuchang, Zhoukou and other places. Trial plantings and seed propagation in various places have shown that it has relatively high yield potential and good adaptability. For example, in 1999 Yuanyang County propagated 20 mu of seed, with an average yield per mu of 607 kg; in 2000 Xun County propagated 200 mu of seed, with an average yield per mu of 573 kg; in 2001 Jiaozuo Xinhe Farm propagated 500 mu of seed, with an average yield per mu of 546 kg; in Changge County, 2000 mu were planted on a large scale for production trials, with an average yield per mu of 528 kg.
Quality performance
According to analysis by the Agricultural Product Quality Supervision and Inspection Testing Center of the Ministry of Agriculture (Harbin), Zhengmai 975 has a crude protein content of 15.30%, wet gluten content of 36.4%, sedimentation value of 29.9 ml, falling number of 371 s, water absorption of 57.4%, development time of 2.8 minutes, stability time of 3.8 minutes, softening degree of 115 F.u, and evaluation value of 45. According to analysis by the Agricultural Product Quality Supervision and Inspection Testing Center of the Ministry of Agriculture (Zhengzhou), the wet gluten content is 33.8%, water absorption is 57.2%, development time is 4.0 minutes, stability time is 6.5 minutes, softening degree is 110 F.u, and evaluation value is 50. The above test results show that Zhengmai 975 has relatively high protein and wet gluten contents, and its gluten strength is medium to slightly strong, belonging to the medium-strong gluten type. In addition, starch property analysis of Zhengmai 975 by flour production enterprises such as the Zhejiang Ningbo Flour Mill showed that this line has good starch gelatinization properties and is suitable for making high-quality noodles and instant noodles. Noodle processing experiments showed that the finished processed noodles have high whiteness, a low breaking rate, are elastic, produce clear cooking water, do not stick to the teeth, are smooth, and have good mouthfeel.
Characteristics and traits
It is weakly spring-type, with medium tillering ability, but the seedlings are clean and neat, and all are large pre-winter tillers that form ears. The ear-bearing rate can generally reach more than 50%, and nutrient use efficiency is high. Its outstanding feature is that the 1000-grain weight is very stable across years and relatively high. The three yield components generally consist of about 400,000 ears per mu, about 35 grains per ear, and a 1000-grain weight of about 45 g, with good grain plumpness and high test weight. Plant height is about 85 cm, with relatively good lodging resistance, early maturity, and good yellowing at maturity.