Relativeness Between Mineral Element of Soil and Occurrence of Tipburn in Chinese Cabbage

토양의 무기성분과 배추의 Tipburn 발생과 관련성

  • Published : 1994.06.01

Abstract

In order to understand the mechanism of the wide occurrence of tipburn phenomenon in Chinese cabbage grown under protected cultivation, Chinese cabbage cultivated in two experimental plots was analyzed based on the distribution of some mineral elements by region in the plant and in the soil. The following results were obtained : 1) The occurrence of tipburn is not related to the concentration of Ca in the soil. 2) The concentration of Ca by region in the plant increased in the order such as inner leaf < middle leaf < outer leaf and inner vein < middle vein < outer vein. 3) From this results the cause of occurrence of tipburn phenomenon in Chinese cabbage which occurred at fixed times in the growth and development of the plant can be controlled by modifying environmental factors in order to prevent excessive transpiration in the inner leaf.

겨울부터 봄에 걸친 배추의 시설보온재배에서 많이 발생되는 Tipburn현상의 원인을 구명하기 위하여 배추재배 시험구의 토양과 배추의 부위별 무기성분 분석을 했다. 실험결과는 다음과 같다. 1. Tipburn현상의 발생과 토양의 칼슘농도와는 관계가 없었다. 2. 배추부위별 칼슘농도는내엽<중엽<외엽이었고, 내엽맥<중엽맥<뇌엽맥의 순이었다. 3. 이상의 결과로 Tipburn현상의 발생원인은 배추생육의 일정시기에 배추 내엽으로부터 증산작용을 억제시키는 어떤 환경요인에 의해 1차적으로 발생된다고 생각된다.

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