Hi Ammar

many factors might block flowering. Photoperiodism, your plants possibly having been too weak last year; too fertile soil, in particular too much nitrogen; unsuitable temperature, or more often too weak temperature oscillation; etc. By several species flowering is induced by some water stress.

Ammar Bader Sir

The flowering in turmeric (Curcuma longa) depends on the climate and growing conditions.

Thanks!

Sir! Turmeric plants typically take around 8-10 months to mature and produce flowers. However, there are several reasons why your turmeric plant may not be flowering even after two years:

Insufficient Light, Inadequate Temperature, Watering Issues, Soil Quality, Lack of Fertilization, Pests or Diseases, Variety.

Assalamu'alaykum Prof Ammar Bader

Egypt has a dry and hot desert climate, with relatively long periods of sunshine throughout the year. In general, the following are the periods of irradiation found in Egypt: - Summer (June-August): The longest sunshine period, with a duration of sunlight of around 13-14 hours per day. The air temperature is also very hot, with an average temperature of around 35-40°C. - Autumn (September-November): The light period is still relatively long, with a duration of sunlight of around 11-12 hours per day. The air temperature is starting to decrease, with an average temperature of around 25-30°C. - Winter (December-February): Shorter photoperiod, with sunlight duration of around 9-10 hours per day. The air temperature is also cooler, with an average temperature of around 15-20°C. - Spring (March-May): The sunlight period begins to lengthen, with a duration of sunlight of around 11-12 hours per day. Air temperatures are also starting to increase, with an average temperature of around 25-30°C.

Sunlight periods in Egypt can vary depending on location and time of year. However, in general, Egypt has relatively long periods of sunshine throughout the year, with longer durations of sunshine in summer and shorter periods in winter.

Photoperiod is the ability of plants to respond to the length of the day or the duration of sunlight they receive. Turmeric (Curcuma longa) is a plant that requires a specific photoperiod to flower and produce flowers and tubers.

Turmeric requires a relatively long photoperiod, namely around 12-14 hours of sunlight per day, to flower and produce tubers. If the duration of sunlight is less than 12 hours per day, turmeric may not flower or produce optimal tubers. Apart from that, turmeric also requires warm temperatures and sufficient humidity to flower and produce tubers. The ideal temperature for turmeric is between 20-30°C, and sufficient humidity is around 60-80%.

The photoperiod required by turmeric can be divided into several stages, namely: 1. Growth stage: Turmeric requires sufficient sunlight for the growth of leaves and stems, namely around 10-12 hours per day. 2. Flowering stage: Turmeric requires longer sunlight, namely around 12-14 hours per day, to flower and produce tubers. 3. Tuber ripening stage: Turmeric requires shorter hours of sunlight, namely around 10-12 hours per day, to ripen the tubers.

Dear sir, Turmeric plants may not flower due to factors like insufficient maturity, lack of sunlight, too much nitrogen, improper climate, or poor soil conditions. Some varieties rarely bloom, especially outside their natural habitat. If the plant gets too much nitrogen, it grows more leaves instead of flowers. Cold or dry weather can also prevent blooming, and overcrowded rhizomes or poorly drained soil can affect growth. To encourage flowering, provide bright, indirect sunlight, use a balanced fertilizer with phosphorus and potassium, maintain warmth and humidity, and ensure proper spacing and soil drainage.

Dear sir, The turmeric plant, which needs to be supplemented with extra nutrients from outside in order to reach optimum development, should be fed regularly with compost and organic fertilizer.I recommend that you apply phosphorus on time and in appropriate amounts.

It depends on climatic and edaphic conditions turmerics rhizomes grow without flowering.