chrysanthemum

Underdevelopment of chrysanthemum buds and their drying is observed as a result of:

• high air humidity;

• lack of water;

• over wetting of the soil;

Yellowing and chlorosis of chrysanthemum leaves is a consequence of:

• absence of copper and zinc to plants;

• low soil moisture;

• soil salinization;

During the storage of chrysanthemum queens, the optimal temperature is:

• 5-8 degrees;

• 15-18 degrees;

• 20-22 degrees;

Permissible relative humidity before chrysanthemum flowering should not be higher than:

• 50-55%;

• 30-35%;

• 10-15%;

High standards of phosphorus against the background of low nitrogen fertilizers:

• increase the area of the assimilation surface;

• increase the size of the inflorescence;

• worsen the stability of cut chrysanthemums;

• delay flowering, the flowers acquire a reddish tint.

Low rates of phosphorus fertilizers:

• increase the size of the chrysanthemum inflorescence;

• increase the size of chrysanthemum shoots;

• reduce the size of chrysanthemum shoots;

Weak lighting of chrysanthemum plants in winter in closed ground conditions:

• accelerates the development of flower buds;

• slows down the development of flower buds;

• does not affect the development of flower buds;

The critical intensity of illumination of chrysanthemum plants in indoor conditions is:

• about 1000 lux;

• 300 lux

• more than 5000 lux;

Yellowing and chlorosis of chrysanthemum leaves is a consequence of:

• low soil moisture;

• soil acidification;

• supply of excess sulfur and calcium to plants;

• rotting of the root system.

Weak lighting of chrysanthemum plants in winter in closed ground conditions:

• accelerates the development of flower buds;

• slows down the development of flower buds;

• does not affect the development of flower buds;