Topic : growth

Which of the following breaks seed dormancy?

Read the given statements and select the correct option. Statement A: All GAs are acidic Statement B: Tomato is a long day plant

Population is said to be mature or stable, when

The plant hormone which counteracts apical dominance is

Deficiency of which of the given sets of elements causes necrosis?

According to the 2011 census report, the population growth rate was less than

In a culture medium, there were 50 Euglena. Within 24 hours, 20 were added through the process of reproduction and mean while 8 were died. What is the growth rate of Euglena (in per individual per day) in that medium?

Initially the length of two tendrils A and B of a plant are 4 cm and 8 cm respectively. After one day they became 6 cm and 10 cm respectively. Which of the following statements about their growth rates should be true?

All of the following chemicals cause seed dormancy, except

All the given are correct for logistic growth of population, except

Seed germination can be delayed or inhibited by

Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?

Read the following statements on plant growth and development. A. Parthenocarpy can be induced by auxins. B. Plant growth regulators can be involved in promotion as well as inhibition of growth. C. Dedifferentiation is a pre-requisite for re-differentiation. D. Abscisic acid is a plant growth promoter. E. Apical dominance promotes the growth of lateral buds. Choose the option with all correct statements.

Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population?

_______ is used to speed up the malting process in brewing industry.

Which of the following contributes to increase in population density?

In the terms of seed germination, which of the following enzymes are antagonist?

The chief sinks for the mineral elements are all of the given, except

Select the incorrect match w.r.t. phytohormones and their composition

Regarding dormancy of seeds, the phytohormones that show antagonistic effect are

In the year 1947, India's population was A and crossed B in May 2011.

Choose the option that correctly fills the blank (A) and (B).