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Prosedur Penggunaan Plant Preservative Mixture (PPM) Pada Media Kultur Jaringan Untuk Peningkatan Kualitas dan Kuantitas Tanaman Kultur Jaringan

Tanaman Kultur Jaringan dengan Plant Preservative Mixture Kultur jaringan tanaman (Picture from http://www.scind.org)

Kultur jaringan dikenal juga dengan sebutan tissue culture. Kultur jaringan berasal dari kata kultur  yang artinya budidaya dan jaringan yang artinya sekelompok sel yg mempunyai bentuk dan fungsi yang sama. Berdasarkan asal kata tersebut maka arti dari kultur jaringan adalah membudidayakan jaringan tanaman menjadi tanaman baru yang mempunyai sifat sama dengan induknya. Kultur Jaringan diartikan pula dengan memelihara & menumbuhkan organ tanaman (embrio, tunas, bunga dsb) atau jaringan tanaman (sel, kalus, protoplast) pada kondisi aseptik. (https://www.pintarbiologi.com). Salah satu cara untuk peningkatan kualitas dan kuantitas tanaman kultur jaringan yaitu dengan penggunaan Plant Preservative Mixture (PPM). Plant Preservative Mixture (PPM) merupakan preservative/biosida spectrum luas yang efektif untuk mencegah atau menurunkan kontaminasi mikroba pada kultur jaringan tanaman. Pada dosis optimum PPM sangat efektif dan tidak mempengaruhi vitro germination, ploriferasi kalus dan regenerasi kalus. Plant Preservative Mixture (PPM) ini mengandung zat aktif yang terdiri dari :

5-Chloro-2 methyl-3-(CH) – isothiazolone 0,1350%
2-methyl-3(H)-isothiazolone 0,0412%

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Chemistry Ebook: Recommended Methods of Manure Analysis

manure analysis

Brief Content Of Recommended Methods of Manure Analysis Ebook:
Unit I
Sampling Livestock Waste for Analysis
1. Introduction
2. Sampling livestock waste
2.1 Technique
2.2 Time
2.3 Storage management
3. Sampling recommendations
4.Recommended procedures for sampling livestock waste
4.1 Solid manure dairy, beef, swine, poultry
4.2 Liquid manure dairy, beef, swine
4.3 Sample identification and delivery
5. References
Unit II
Laboratory Quality Assurance Program
1. Introduction
2. Components of a quality control program
3. Assessment of quality control
4. Statistical control and control charts
5. References

Ebook Of Analysis Methode: Handbook Of International Center for Agricultural Research in the Dry Areas (ICARDA)

ICARDA logo(Picture from http://www.icarda.org)

The idea that one could test or analyze a soil and obtain some information about its properties especially its acidity or alkalinity and its nutrient status is long established, and can be traced back to the beginning of scientific inquiry about the nature of soil. Analysis of plant to reflect fertility status of the soil in which it grew is more recent, although visual crop observations are as old as the ancient Greeks, if not older. In the last few decades, spurred on by commercialization of agriculture and the demands for increased output from limited and even diminishing land resources, both soil and plant analysis procedures have been developed, and are still evolving.

With the advent of chemical fertilizers, the need to know nutrient status of a soil in order to use these expensive and limited inputs more effectively became all the more crucial. However, if soil testing is to be an effective means of evaluating fertility status of soils, correct methodology is absolutely essential. A soil or a field may be assessed for its capability of providing a crop with essential nutrients in several ways:

  1. Field Plot Fertilizer Trials;
  2. Greenhouse Pot Experiments;
  3. Crop Deficiency Symptoms;
  4. Plant Analysis;
  5. Rapid Tissue or Sap Analysis;
  6. Biological Tests, such as Growing Microorganisms; and
  7. Soil Testing prior to Cropping

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Medicinal Natural Products: A Biosynthetic Approach

Medicinal Natural Products: A Biosynthetic Approach

Medicinal Natural Products: A Biosynthetic Approach, Third Edition, provides a comprehensive and balanced introduction to natural products from a biosynthetic perspective, focussing on the metabolic sequences leading to various classes of natural products.The book builds upon fundamental chemical principles and guides the reader through a wealth of diverse natural metabolites with particular emphasis on those used in medicine.There have been rapid advances in biosynthetic understanding over the past decade through enzymology, gene isolation and genetic engineering. Medicinal Natural Products has been extended and fully updated in this new edition to reflect and explain these developments and other advances in the field. It retains the user-friendly style and highly acclaimed features of previous editions: Read more »