Effects of Soil Water Potential of Cutting Bed and Relative Humidity on the Rooting of Stem Cutting

삽목발근촉진(揷木發根促進)을 위한 토양(土壤) 및 대기수분관리(大氣水分管理)

This experiment was carried out to know the effects of soil water potential of cutting bed and relative humidity on the rooting of stem cutting in the field plots. The results obtained were as follows; 1. The most number of the rooted cutting was found from 70 to 80% of relative humidity in Spring and from 90 to 100% in Summer respectively. 2. It was found that the number of rooted cutting was the least in the range of 0 to-0.006 bar of soil water potential of cutting bed in the case of Spring cutting, whereas in Summer the number of the rooted cutting was the most one in the range of -0.049 to -0.124 bar of soil water potential of cutting bed. 3. High signification was recognized between the relative humidity and the number of the rooted cutting only in the Spring cutting, but that of soil water potential and the number of the rooted cutting was found to be significant in every season.

삽목(揷木)에 있어서 삽상(揷床)의 수분상태(水分狀態)와 상대습도(相對濕度)가 삽목(揷木)의 발근(發根)에 미치는 영향(影響)을 포장실험(圃場實驗)한 결과(結果)는 다음과 같다. 1. 춘삽(春揷)에서는 상대습도(相對濕度)가 70~80%의 수준(水準)에서 발근본수(發根本數)가 가장 많았으나, 하삽(夏揷)의 경우는 90~100%의 수준(水準)에서 많았다. 2. 삽상(揷床)의 수분상태(水分狀態)는 춘삽(春揷)의 경우 0~-0.006bar에서 발근본수(發根本數)가 가장 적었으나 하삽(夏揷)의 경우는 -0.049~-0.124bar일 때 발근본수(發根本數)가 가장 많았다. 3. 상대습도(相對濕度)와 발근본수간(發根本數間)에는 춘삽(春揷)의 경우에만 유의성(有意性)이 인정되었으나 삽상(揷床)의 수분상태(水分狀態)와 발근본수간(發根本數間)에는 춘(春) 하(夏) 추삽(秋揷) 모두에서 유의성(有意性)이 인정되었다.