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Showing 3 results for Pod
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Volume 2, Issue 1 (8-2015)
Abstract
In order to investigate the effect of planting orientation and arrangement on yield and yield components of Sunray green bean (the Netherlands), an experiment was conducted as factorial based on RCBD with three replications in the Farm Research of Gonbad Kavous University in 2013. Levels of planting arrangement were 20×20, 30×13.3 and 40×10 cm (fixed density of 25 plants m-2) and the levels of planting orientation were northern- southern, eastern-western, north eastern –south western and north western –south eastern. The results showed that the effect of planting orientation on the number of pod/plant, number of seed/plant, 100-seed weight, seed yield, plant dry weight and harvest index were significant. The Effect of planting arrangement on plant height, number of branch/plant, number of seed/pod, 100-seed weight and plant dry weight was significant. The effects of planting orientation × planting arrangement on the number of pod/plant and seed yield were significant. Maximum plant height, branch/plant, number of seed/ pod, 100-seed weight and plant dry weight were belonged to planting arrangement of 40×10, 20×20, 40×10 and 40×10 cm. plant dry weight in northern- southern direction with 11.22 gr were greater than other directions. Seed yield in planting arrangement of 40×10 cm and planting orientation north western –south eastern with 1444 kg was greater than other treatments
Faramarz Sayyedi, Yunes Mohammad Nezhad,
Volume 7, Issue 13 (9-2023)
Abstract
Introduction: Field pea (Pisum sativum L.) is an annual cool-season legume rich in essential amino acids lysine and tryptophan, and it holds great importance in crop rotation and enhancing biodiversity. This plant is particularly important because of its ability to fix nitrogen, utilize autumn rains, and break the cycle of diseases and pests. This experiment was carried out to determine the optimal irrigation timing and planting arrangement of field peas.
Materials and methods: To investigate the effects of supplementary irrigation and planting arrangement on pod yield and yield components of field pea (Pisum sativum L.) cv. Green Arrow, an experiment was conducted in a split factorial arranged in an RCBD with three replications at the Agricultural Research Station of Gonbad, Iran for two years (2019-2020). The main plots consisted of four irrigation treatments: once at the beginning of flowering, once at the beginning of pod, both at the beginning of flowering and pod formation and rainfed (RF) condition. The subplot was a combination of two factors: row spacing (17 and 34 cm) and within-row distance (6, 8, 10, and 12 cm). The investigated traits were the number of pods per plant, seeds per pod, 100-seed weight, the pod yield, and the number of branches.
Results: The combined analysis of variance revealed significant effects of year, row spacing, within-row distance, and the year-by-irrigation interaction on the number of pods per plant. The number of seeds per pod was significantly affected by within-row distance. The row spacing and within-row distance significantly influenced the 100-seed weight. The pod yield was significantly affected by irrigation, row spacing, and within-row distance. One irrigation at the beginning pod or two irrigations (beginning flowering + beginning pod) increased the field pea pod yield by about 1800 kg. Increasing the row spacing from 17 to 34 cm increased the number of pods per plant and pod yield. The highest pod yield (16349 kg/ha) was achieved with a within-row distance of 10 cm. A further reduction in row spacing could not compensate for the reduction in the number of pods per plant.
Conclusion: Based on the results, we recommend a row spacing of 34 cm and a within-row distance of 10 cm for field peas in the Gonbad region. Additionally, one irrigation at the beginning of pod formation is advisable.
Mohammad Ail Kord Valeshabad, Asieh Siahmarguee, Ebrahim Zeinali, Fatemeh Sheikh, Beniamin Torabi,
Volume 7, Issue 13 (9-2023)
Abstract
Introduction: Environmental problems caused by the use of herbicides have drawn researchers' attention to the use of integrated weed management methods. Using suitable cultivars and reducing planting row distances along with mechanical control methods can be effective in improving crop growth and reducing weed damage. Therefore, this study was conducted to investigate the effect of mechanical control (weeding) and agronomic control by reducing the distance between planting rows on the yield of different varieties of faba bean.
Materials and methods: In this study, five varieties of faba beans, including Faiz, Shadan, Barkat, Mehta, and G-Faba, were planted in two-row spacings of 30 and 50 cm under two conditions of weeding and no weeding. The traits measured in each experimental plot included the number of pods per plant, number of seeds per pod, 100-seed weight, seed yield, biomass yield, harvest index, and green pod yield. Also, weed dry weight was measured in each experimental plot during the growing season.
Results: The results showed that in both row spacings and in all cultivars, grain weight, seed yield, biomass yield, harvest index, and green pod yield were significantly reduced in non-weeding conditions compared to weeding conditions. Seed yield in Faiz and Mehta in the row distance of 30 cm was more than the row distance of 50 cm, but the opposite happened in Shadan and G-Faba cultivars. Biomass yield was higher in the Mehta cultivar at 30 cm row spacing, but no significant difference was observed in other cultivars between two-row spacings. The yield of green pods in the Shadan variety was more than 30 cm in a row distance of 50 cm; but in other cultivars, there was no significant difference between the two rows. In all cultivars, the dry weight of weeds at 30 cm row spacing was significantly lower than at 50 cm row spacing.
Conclusion: The results of this study showed that although increasing the row spacing did not have a significant effect on increasing the yield and yield components of faba bean cultivars, decreasing the planting row spacing decreased the weed population. On the other hand, weed control through weeding in both row spacing increased the seed yield and green pods of faba bean cultivars. Therefore, weed control, regardless of the type of variety or the spacing of planting rows, should be considered an essential measure in faba bean production.
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