An Optimum Summer Cultivation Sowing Date for Seed Production of Oats (Avena sativa L.)

Jin-Cheon Park; Yang-Kil Kim; Young-Mi Yoon; Su-Yeon Choi; Jong-Ho Park; Hyoung-Ho Park; Kyungyoon Ra; Tae-Il Park

doi:10.7740/kjcs.2022.67.3.180

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2022 Vol.67, Issue 3 Preview Page Next Page

Original Research Article

An Optimum Summer Cultivation Sowing Date for Seed Production of Oats (Avena sativa L.) 귀리 종자 생산을 위한 여름 재배의 적정 파종 시기 구명

1 September 2022. pp. 180-188

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Abstract

This study was conducted to determine the optimal sowing date for seed yield of summer oat (Avena sativa L.) cultivars “Darkhorse (DH)” and “Highspeed (HS)” in Wanju, Jeonbuk province between 2017 and 2018. We investigated seed yield from 4 sowing dates: July 15, July 30, August 15, and August 30. We evaluated the agronomic characteristics of summer oats (DH and HS). We found the heading date of all cultivars to be within 50 days. Delayed sowing resulted in significantly increased plant height for both years and cultivars. There was no significant difference in spike length of DH and HS which ranged from 12.8 to 17.8 cm. The sowing date of July 30 produced a higher number of grains per spike, but this yield differed significantly by year and cultivars. In 2017, the first sowing resulted in the lowest DH yield at 132 kg per 10a, while the second sowing had the highest yield at 227 kg. HS yield was the lowest in the first sowing at 126 kg and the highest in the third sowing at 219 kg. In 2018, DH had the lowest yield from the first sowing at 184 kg per 10a, and the highest from the second sowing at 240 kg, but there was no significant difference between these yields. The first sowing for HS gave the lowest yield at 160 kg, and the second sowing produced the highest at 258 kg. The germination rate of harvested seeds from each sowing date in 2017 and 2018 was found to be higher than 85% and there was no significant difference between the two cultivars in the 2018 germination rate test. Thus, we found the optimal sowing date for summer cultivation of oats for the highest seed yield to be between July 30 (second sowing) and August 15 (third sowing).

Keywords

forage oat

Honam

seeding date

seed production

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Information

Publisher :The Korean Society of Crop Science
Publisher(Ko) :한국작물학회
Journal Title :The Korean Journal of Crop Science
Journal Title(Ko) :한국작물학회지
Volume : 67
No :3
Pages :180-188
Received Date : 2022-07-20
Revised Date : 2022-08-16
Accepted Date : 2022-08-17
DOI :https://doi.org/10.7740/kjcs.2022.67.3.180

The Korean Journal of Crop Science ISSN:0252-9777(Print) 2287-8432(Online) 한국작물학회지

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