국산밀 품질 향상을 위한 지역별 재배 현황 및 원맥 특성 평가II. 농가 수집 원맥 특성 평가 = Current Regional Cultural Situation and Evaluation of Grain Characteristics of Korean Wheat II. Grain Characteristics Collected in Domestic Wheat Cultivar Grown in Korea

다국어 초록 (Multilingual Abstract)

Agronomic characteristics and grain properties of Korean wheat of 175 farmers in nationwide for two years, 2010/2011 and 2011/2012, were evaluated to support basic data for improving grain quality of Korean wheat and enhancing Korean wheat consumption. Agronomic characteristics,including culm length, spike length, number of spike/m 2and rate of off-type plant, and grain properties, including 1000 kernel weight, test weight, moisture, ash and protein content, were influenced by year and location. Number of spike/m 2, test weight, moisture, ash and protein content of wheat cultivated in 2011 were higher than those of 2012and culm length, spike length, rate of off-type plant and 1000 kernel weight of 2012 were higher than those of 2011. Wheat cultivated in southern part of Korea showed higher culm length and 1000 kernel weight and lower test weight than those of northern part of Korea. Spike length,number of spike/m 2and test weight were reduced by additional fertilization after mid of March, although there was no significant difference between date of additional fertilization and grain properties. Cultivated wheats in Jeollabuk-do showed lower ash content and higher protein content than those of other provinces and cultivated wheats in Jeollanam-do exhibited higher ash content than that of other provinces. As amount of fertilization increased, culm length, 1000 kernel weight and protein content increased and spike length and ash content were decreased, although date of additional fertilization did not effect on agronomic characteristics and grain properties. Amount of fertilization was positively correlated with 1000 kernel weight and protein content (r = 0.159, P < 0.05 and r = 0.212, P < 0.01,respectively) and was negatively correlated with ash content (r = -0.185, P < 0.05). Thousand kernel weight was negatively correlated with ash content (r = -0.226, P < 0.01)and positively correlated with protein content (r = 0.207,P < 0.01). Ash content increased as test weight and culm length decreased and 1000 kernel weight was influenced by culm and spike length (r = 0.397, P < 0.001 and r = -0.205,P < 0.01, respectively).

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