시비처리가 2년생 잣나무 용기묘의 생장특성에 미치는 영향
Effects of Fertilizer Treatment on the Growth Characteristics of 2-years old Pinus koraiensis Siebold & Zucc Container Seedlings
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초록
본 연구는 잣나무 2년생 용기묘를 대상으로 시비농도별 처리가 묘목의 형태적 생장, 물질분배, 엽록소 함량에 미치는 영향을 구명하기 위해 실시하였다. 시비처리에 따른 잣나무 용기묘는 시비 농도가 높아짐에 따라 묘고와 근원경생장이 높게 나타났으며, 1.0 g·L-1처리구에서 가장 높은 묘고 생장(3.81 cm)과 근원경생장(2.12 mm)을 나타내었다. 또한 전체 물질생산량은 1.0g·L-1처리구에서 2.58 g으로 가장높게 나타났다. H/D율은 1.0 g·L-1처리구에서 2.70, T/R율은 0.33 g·L-1처리구에서 1.11로 가장 낮게 나타났다. 묘목품질지수는 시비농도가 높아짐에 따라 높아지는 경향을 보였고, 1.0 g·L-1처리구에서 가장 높은 0.60값을 나타내었다. 전체 엽록소함량은 시비농도가 높아짐에 따라 증가하는 경향을 보였고, 엽록소 a, b 함량 또한 높은 값을 나타내었다. 본 연구 결과 우량한 묘목생산을 위한 시비처리는1.0 g·L-1로 조사되었으며, 양묘시 양질의 묘목을 생산하기 위한 기초자료로 활용될 것으로 판단된다.
Abstract
This study was carried out in order to investigate the effects of fertilizer treatment on theabove ground and underground growth amount of 2 years old Pinus koraiensis seedlings. P.koraiensis container seedlings showed high seedling height and root collar diameter growth asthe fertilization concentration increased, and the specimen with the fertilizer treatment of 1.0 g ·L-1 showed the highest seedling height growth (3.81 cm) and root collar diameter growth (2.12mm). Also, the whole biomass production was highest at the specimen with the fertilizertreatment of 1.0 g · L-1 as 2.58 g. H/D rate was 2.70 at the specimen with the fertilizertreatment of 1.0 g · L-1, and T/R rate was 1.11 at the specimen with the fertilizer treatment of0.33 g · L-1. The seedling quality index tended to increase as the fertilization concentrationincreased, and showed the highest values as 0.60 in 1.0 g · L-1 fertilizer treatment. The totalchlorophyll contents tended to increase as the fertilization concentration increased, with highcontents of chlorophyll a and b. The results showed that fertilizing treatment for the superiorseedling production were irradiated as 1.0 g and it is appropriate to be used as basic data forproducing good seedlings and growing saplings.
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