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Ethephon과 Gibberellin處理가 Concord葡萄 休眠揷穗의 生長과 가지內 貯藏窒素의 變化에 미치는 影響
高光出,姜性模,John S. Titus 서울大學校 農科大學 1981 서울대농학연구지 Vol.6 No.1
The study was carried out to know bud sprouting, shoot growth and total nitrogen of the dormant Concord grape cuttings treated by Ethephon and Gibberlin and assay extractable protein in the dormant canes and August leaves. The results are as follows. 1. Bud sprouting rate of Concord grape cuttings treated Ethephon 10ppm on December 20 was 80% but the rates of untreatment and GA 10ppm were 10~15%. 2. The sprouting rate and shoot growth treated Ethephon on January 21 and February 20 Were lower than that on Dec.20. 3. GA treatment retarded the sprouting and shoot growth of the dormant cuttings. 4. Total mitrogen rate of dormant cane was 0.053~0.083%and it in August grape leaves was 0.115%per fresh weight. 5. Extractable protein in dormant cane was 0.053%~0.083% and it in August grape leaves was 0.115% per fresh weight