Question

Как измерить скорость роста растений?

Answer 1

Ваш вопрос меня заинтересовал. Действительно, как. И что именно называть ростом. Ведь большинство растений растут и ввысь, и вширь. Кроме того, их листья тоже увеличиваются в размере.
Думаю, надо задаться конкретными вопросами.
1. Просто рост в высоту. Измерить высоту можно так. Приложить палку к стволу или параллельно стволу и поточнее засечь на ней высоту с помощью угольника.
Начертить таблицу с двумя столбцами: ДАТА и РОСТ с см.
Измерять поначалу раз в неделю. Если за неделю прирост незаметный, то раз в месяц, в течение, например, полугода. Затем величину прироста за полгода разделить на 182. Таким образом можно установить скорость роста в день. Но, так как рост в течение года непостоянный, то, может, надо это делать целый год.
2. Скорость роста в ширину можно определить аналогично, но с помощью портновского сантиметра. Только надо кого-то попросить помочь, чтобы аккуратно окружить крону на одном уровне, параллельно полу (подоконнику).

Answer 2

Замерить высоту растения и разделить на кол-во дней, сколько прошло с момента появления его ростка

Answer 3

How to Measure Plant Growth Rate

Measuring the growth rate of plants is an important aspect of plant research and cultivation. It allows us to understand how plants respond to different environmental conditions, treatments, and genetic factors. There are several methods to measure the growth rate of plants, and here are a few commonly used techniques:

1. Height Measurement: One of the simplest ways to measure plant growth is by tracking the increase in height over time. This method is suitable for plants with an upright growth habit, such as trees, shrubs, and herbaceous plants. To measure height, use a ruler or measuring tape to record the distance from the base of the plant to the highest point of growth. Repeat this measurement at regular intervals, such as weekly or monthly, to track the growth rate.

2. Leaf Area Measurement: Leaf area is another important parameter for assessing plant growth. It can be measured using various techniques, such as a leaf area meter or by manually tracing the outline of leaves and calculating the area using image analysis software. Leaf area is often correlated with plant biomass and can provide valuable information about the overall growth and development of plants.

3. Fresh and Dry Weight Measurement: Measuring the weight of plant tissues can provide insights into the growth rate and biomass accumulation. Fresh weight refers to the weight of plant tissues immediately after harvesting, while dry weight is obtained after drying the tissues to remove moisture. To measure fresh weight, use a balance or scale to record the weight of the plant parts. For dry weight measurement, place the harvested tissues in an oven at a specific temperature (usually around 70-80°C) until they reach a constant weight. The difference between fresh and dry weight indicates the water content of the plant tissues.

4. Root Length Measurement: The growth of plant roots is crucial for nutrient and water uptake. Measuring root length can provide insights into the root system's development and its impact on plant growth. Root length can be measured using various techniques, such as manually tracing the roots on transparent sheets or using specialized software for image analysis. This method requires careful excavation of the root system without damaging the roots.

5. Digital Imaging and Analysis: With advancements in technology, digital imaging and analysis methods have become popular for measuring plant growth. These methods involve capturing images of plants at regular intervals and using specialized software to analyze various growth parameters, such as leaf area, plant height, and biomass. Digital imaging allows for non-destructive measurements and provides a wealth of data for detailed analysis.

It's important to note that the choice of measurement method depends on the specific research objectives, plant species, and available resources. Researchers often combine multiple methods to obtain a comprehensive understanding of plant growth dynamics.