The influence of effective microorganisms on physiological characteristics of containerized taurus cedar ( Cedrus libani A. Rich.) seedlings

IF 0.7 4区农林科学 Q3 FORESTRY

Cerne Pub Date : 2022-01-01 DOI:10.1590/01047760202228013018

S. Ayan, E. Çalışkan, H. Özel, E. Çelik, Ergin Yılmaz, Orhan Gülseven, Ş. Akın

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引用次数: 0

Abstract

Background: In this study, the impact of Effective Microorganism (EM) applications on some physiological characteristics of 2+0 aged, containerized Taurus cedar (Cedrus libani A.Rich.) seedlings were investigated. EM-1, EM-A, EM-5, and EM-Gold were used as effective microorganism varieties. EM application was repeated twice at two different times. The first application was carried out in April-May 2017 at the beginning of the vegetation period, and the second application was carried out in June-July, when the growth of seedlings was the most active period, according to a randomized plot design with three replications. Results: Physiological measurements on seedlings were carried out at the end of the second vegetation period. According to the results of the study, it was determined that the EM type, dose and application time factors had a significant effect on physiological characteristics such as Chlorophyll a, Chlorophyll b, Total Chlorophyll, Photosynthesis Rate, Transpiration and Relative Humidity. EM-A had a positive effect on photosynthesis rate and EM-5 had a positive effect on all other measured physiological parameters. High dose of EMs had the most positive effect on relative humidity, while medium dose of EMs had the most positive effect on chlorophyll values, transpiration rate and photosynthesis rate. In addition, it was determined that EM application at the beginning of the vegetation period had an increasing effect on all measured physiological parameter values. Conclusion: According to the results of the study, it was concluded that EMs have a positive effect on the physiological quality characteristics of Taurus cedar seedlings and can contribute to the production of seedlings with higher adaptability in afforestation.

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有效微生物对集装箱雪松幼苗生理特性的影响

背景:本研究研究了有效微生物(EM)对2+0龄集装箱金牛座雪松(Cedrus libani A.Rich.)幼苗生理特性的影响。EM-1、EM-A、EM-5和EM-Gold作为有效微生物品种。EM应用在两个不同的时间重复两次。采用随机样地设计，3个重复，第一次施药于2017年4 - 5月植被初期，第二次施药于幼苗生长最活跃的6 - 7月。结果:在第二植被期结束时对幼苗进行了生理测量。研究结果表明，EM类型、剂量和施药时间对叶绿素a、叶绿素b、总叶绿素、光合速率、蒸腾和相对湿度等生理特性有显著影响。EM-A对光合速率有正向影响，EM-5对其他生理参数均有正向影响。高剂量EMs对相对湿度影响最大，中剂量EMs对叶绿素值、蒸腾速率和光合速率影响最大。此外，确定在植被期开始时施用EM对所有测量的生理参数值都有增加的影响。结论:综上所述，EMs对金牛雪松幼苗的生理品质特性有积极的影响，有助于生产对造林适应性更高的幼苗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cerne 农林科学-林学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Cerne is a journal edited by the Federal University of Lavras, Minas Gerais state, Brazil, which quarterly publishes original articles that represent relevant contribution to Forestry Science development (Forest ecology, Forest Management, Silviculture, Technology of Forest Products).