بررسی تأثیر تاریخ‌های مختلف کشت بالای خصوصیات اگرانومیکی بکویت

Abstract (in English)

Buckwheat (Fagopyrum esculentum) is an annual broadleaf plant from the Polygonaceae family. Its seeds are used as a nutritional and medicinal product. The nutritional value of this plant is more than real grains and it is an excellent source of high-quality protein. This research aimed to find the most suitable planting date for the growth and development of buckwheat in the climatic conditions of Kabul. This research was conducted in the research farm of Agriculture faculty of Kabul University in 2021. Randomized Complete Block Design (RCBD) was used in this research, and 100m² area was allocated to accomplish this research.The size of each plot was 4m².  Five planting dates were selected as treatments, i.e. April 21, May 6, May 21, June 5 and June 20. The results of this research showed that the different planting dates with different distances had a significant effect on plant height, numbers of leaves, leaf length, leaf width and branch numbers. So that the highest numbers of leaves (99.3) per plant) belonged to the third planting date and the lowest numbers of leaf (54.0 leaves per plant were produced on June 20^th. Also, the tallest plant 85.0 cm was obtained from 21 of June and the shortest height 50.0 cm from 20^th of June as well. According to the obtained results, the maximum leaf length 7.16 cm produced on May 21^th and the minimum 5.50 cm on April 21^th and June 20^th.  Likewise, the May 21^th with the broad leaf 5.94 cm was obtained from first row of April 21^th and 4.8 cm in the last row of the same date. Different planting dates performed a significant effect on the number of branches. So that on the date of the third and four 28.4 and 27.6 branches were produced on May 21^th and on June 5^th, respectively, which was significantly superior than the others. Based on the results, the suitable planting date of buckwheat in the climatic conditions of Kabul is from April 30 to June 9.