sunflower plant

sunflower plant

Sunflower plant grows well under a wide range of soil and climatic conditions. In the USA sunflower plant is presently grown from North Dakota and Minnesota south to Texas in the mid United States. In addition, sunflower plant is grown in Indiana, Ohio, Michigan, Pennsylvania, and Georgia. Varieties of sunflower plant presently grown were developed for dry climates in the Dakotas, Minnesota and Texas; however, breeders are selecting and testing their varieties in other parts of the United States as the demand for this crop increases.

Sunflower plant crop is normally planted between May 15 and July 1 in Ohio depending upon the soil conditions or other management concerns. Tolerance to cold and high temperatures contributes to sunflower здфте adaptation in different environments. Sunflower plant seed will germinate at 42 degrees Fahrenheit (F) but a 50 degree temperature is more satisfactory. Temperatures must be 26 degrees F or lower for several hours to kill mature sunflower plant.

Sunflower plant is not highly drought tolerant; however sunflower plant has an extensive, heavily branched tap root system which permits it to extract more soil moisture than corn roots. Short periods of drought may not greatly reduce sunflower plant seed yield because growth can proceed at night when transpiration is low. The critical yield period occurs 20 days before and after flowering. Sunflower plant grows well in soils ranging in texture from sand to clay.