Effect of Transplanting Time on Yield and Yield Components of Seed Corn in Kermanshah

Subject Areas : crop production

فرهاد صادقی ¹ (استادیار اصلاح نباتات، بخش تحقیقات زراعی و باغی، مرکز تحقیقات و آموزش گشاورزی و منابع طبیعی کرمانشاه، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرمانشاه.، ایران.)

Received: 2024-02-14 Accepted : 2024-02-14 Published : 2024-02-14

Keywords: corn - cultivar - transplantation time - grain yield,

Abstract :

To reduce water consumption in corn fields, and increase production and maintain the corn crop area of the province, a project was conducted as split-plot design based on randomized complete block design with three replications. The main plots consisted of cultivars and subplots in different times on transplantation with direct seed culture of these cultivars. Agronomic traits were measured including plant height, ear height, stem diameter, number of days to emergence of pollen and silk tasseled , number of days to reaching physiology, number of rows of seeds and seeds per row, 1000 seed weight, ear weight, grain moisture content and grain yield. The results showed that the grain yield of KSC 704 and KSC 400 was 10330 and 9506, respectively, and the yield of KSC 260 was 7784 kg / ha. The highest grain yield was obtained from KSC 704, the two-week of transplanting corn seedling with 11640 kg/ha-1 . The average yield of cultivars × five weeks of seedling transplantation with 6597 kg/ ha -1 , which showed the most suitable transfer time of maize transplant was 3 weeks age or 21 days, which were 10 days earlier and had the highest grain yield and therefore are recommended.

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