Crops ›› 2022, Vol. 38 ›› Issue (4): 267-270.doi: 10.16035/j.issn.1001-7283.2022.04.038

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The Breeding of New Maize Variety Quankeyu 900 and Its Cultivation, Seed Production Techniques

Wang Jiabao(), Ji Huaiyuan, Mei Jiafa, Tao Zhiguo, Shu Zhifeng, Jiang Sanqiao   

  1. Anhui Winall Hi-Tech Seed Co., Ltd., Hefei 230088, Anhui, China
  • Received:2021-07-12 Revised:2021-08-31 Online:2022-08-15 Published:2022-08-22

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Abstract:

Quankeyu 900 is a maize single cross variety bred by Anhui Winall Hi-Tech Seed Co., Ltd. in 2014 with in-bred line Q900 as female and in-bred line Q693 as male. It was released with the authorization of Anhui Main Crop Variety Approval Committee in May 2020 with the approval number “Wanshenyu 20201001”. The variety has very significant advantages such as high yield, stable yield performance, compact plant type, lodging resistance, rust resistance, and so on. From 2017 to 2019, the variety had participated in the regional tests of Shennong Corn Testing Union, and ranked first in the group with an average yield of 9103.5kg/ha (606.9kg/667m2), an average increase of 7.5%, and yield increased in all testing sites (100%) compared with the control variety Zhengdan 958.

Key words: Maize, Quankeyu 900, Variety breeding, Cultivation, Seed production technology

Fig.1

Family tree of Quankeyu 900"

Table 1

Resistance identification of Quankeyu 900 in 2017 and 2018"

年份
Year		 小斑病Southern blight 南方锈病Southern rust 纹枯病Sheath blight 茎腐病Stalk rot
病级
Infected grade		 抗性
Resistance grade		 病级
Infected grade		 抗性
Resistance grade		 病指
Infected index		 抗性
Resistance grade		 病株
Infected plant (%)		 抗性
Resistance grade
2017 5 中抗 3 抗 62.2 中感 35 感
2018 7 中抗 3 抗 55.6 中抗 5 抗

Table 2

The yield of Quankeyu 900 from 2017 to 2019 in different experimental sites in Anhui province"

地点
Site		 2017 2018 2019
产量
Yield (kg/hm2)		 增产率
Increment rate (%)		 产量
Yield (kg/hm2)		 增产率
Increment rate (%)		 产量
Yield (kg/hm2)		 增产率
Increment rate (%)
利辛Lixin 8956.5 7.2 9073.5 6.0 – –
宿州Suzhou 8439.0 3.0 – – 11 313.0 7.0
濉溪Suixi 10 747.5 10.4 5239.5 6.1 – –
蒙城Mengcheng 10 500.0 14.1 6727.5 7.0 9544.5 7.7
固镇Guzhen 10 222.5 5.2 7975.5 9.8 9324.0 7.7
明光Mingguang 9168.0 8.4 8467.5 0.9 10 749.0 5.3
凤阳Fengyang 9228.0 11.3 – – – –
阜阳Fuyang – – 6958.5 12.3 10 551.0 8.5
平均Average 9609.0 8.5 7407.0 7.0 10 296.0 7.1
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