Study the effect of irrigation and plant density and their interaction on the yield of Fenugreek
| Main Authors: | Alireza Bakhshi, Ahad Madani, mojtaba hasanzadehdelouei, farshid vazin |
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| Format: | Article Journal |
| Terbitan: |
, 2022
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6301305 |
Daftar Isi:
- Abstract Plant density and water availability are the most important factors determining the yield of both agricultural and medicinal plants. In order to investigate the effect of these two factors and their interaction on the yield of fenugreek, a split plots experiment was conducted with three replications during 2018 growing season in Ghaen-ran. Irrigation cycle (5, 10, 15 days) were allotted to the main plots and plant densities (22, 44 and 66 plants per square meter) to the sub-plots. Three-fold increase in plant density under optimal irrigation conditions (irrigation cycle of 5 days) led to an increase in grain yield from 998 to 1380 kg / ha and biological yield from 2600 to 3259 kg / ha, while, it had no effect on grain yield and biological yield in irrigation cycles of 10 and 15 days. In all irrigation cycles, a 3-fold increase in plant density reduced the number of seeds per pod and a 2-fold increase in plant density reduced the number of pods per plant. These results suggest that increasing plant density in low irrigation conditions has no advantage in improving yield. Also, increasing the density to medium density (44 plants) reduces the source strength and applying high density (66 plants) through the source restriction reduces yield. On the other hand, water deficiency restricted the sink size by reducing the number of pods per plant, the number of seeds per pod and the number of seeds per plant reduced. However, weight of 1000 seeds, which indicates the strength of the source, was not affected by irrigation.