Classification of Gymnosperms by Chamberlain (1934)

There are many systems for the classification of Gymnosperms in the literature. Robert Brown (1827) for the first time recognized Gymnosperms as a separate group of plants. Bentham and Hooker (1883) placed Gymnosperms between Dicots and Monocots in their classification (General Plantarum). The present acticle discusses the Gymnosperm Classification Proposed […]

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Shoot Apical Meristem- Structure and Organization

Apical meristem Ø Apical meristem is a patch of meristematic tissue present in the apex (tips) of shoot and roots in plants. Shoot apex Ø Shoot apex is the growing tip of the stem. Ø It is an undifferentiated region with meristematic cells. Ø From this region the plant […]

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Difference between Primary and Secondary Data

Primary vs Secondary Data Difference between Primary and Secondary Data: The data is a set of values of qualitative or quantitative variables. In statistics, the data are the individual observations. The scientific investigations involve observations on variables. The observations made on these variables are obtained in the form of ‘data’. […]

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Types of Experimental Designs in Statistics (RBD, CRD, LSD, Factorial Designs)

Completely Randomized Design (CRD), Randomized Block Design (RBD), Latin Square Design (LSD) – Advantages and Disadvantages In the previous post, we have discussed the Principles of Experimental Designs. There we discussed the concept of Experimental design in statistics and their applications. In the present post, we will discuss different types […]

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Principles of Experimental Designs in Statistics – Replication, Randomization & Local Control

What is a statistical experiment? Ø An experiment is a plan for the collection and analysis of data. Ø “It is a controlled act through which data are collected according to some pre-determined objective”. Ø The observations obtained from a carefully planned and well-designed experiment in advance only gives valid inferences. […]

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