DZ/T 0101.12-1994
Active
T/NAASS 072-2023
Active
Group standards
T/NAASS 072-2023 Seed production technical regulations for NIM54 maize hybrid variety
T/NAASS 072-2023 Seed production technical regulations for NIM54 maize hybrid variety
Price:
$ 30
Basic Information
Standard Code:
T/NAASS 072-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2023-11-07
Implement Date:
2023-12-15
Scope
Scope: This document specifies the terms and definitions of the seed production technology for the corn hybrid variety Ningdan 54, including the origin and characteristics of the variety, and the key techniques of seed production. This standard applies to the production of Ningdan 54 corn hybrid seeds, and the suitable regions are the Yonghe Irrigation Area in Ningxia and similar ecological zones for spring sowing. Main technical contents: 3. Terms and definitions - Single cross: The first-generation hybrid seeds of two inbred lines. - Basic seed: Seeds directly bred by breeders or produced in accordance with the basic seed production procedures and meeting the specified standards. - Parental seed: Seeds propagated from basic seed and meeting the specified standards, used for the production of hybrid seeds for field planting. - Commercial hybrid seed: Hybrid seeds directly used for field production. 4. Origin and characteristics of the variety - Ningdan 54 is a corn single-cross hybrid bred by the Crop Research Institute of Ningxia Academy of Agricultural and Forestry Sciences and the Agricultural Biotechnology Research Center of Ningxia Academy of Agricultural and Forestry Sciences from the cross of SBY1 and LXH1012. It was approved by the Ningxia Crop Variety Approval Committee in 2021 (Ning Audit Yum 20210001). - The seedlings have an elliptical first leaf, purple leaf sheaths, dark green leaves, a semi-compact plant type, green glumes, red anthers, red filaments on the female inflorescence, and long, cylindrical ear shapes with red ear axes and yellow, semi-dentoate seeds. 5. Key techniques of seed production - Site selection: Choose areas with suitable natural conditions and free from quarantine pests and diseases. The seed production plots should have fertile soil, uniform soil quality, and convenient irrigation and drainage. - Isolation measures: - Spatial isolation: The distance between the seed producti
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