Volume 12, Issue 54 (vol. 12, no. 54 2023)
2023, 12(54): 275-290 |
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Shobeiri S S, Asadi A A. Investigation of the effect of density, row spacing and cultivar on physiological traits in lentils in rainfed conditions. Plant Process and Function 2023; 12 (54) : 17
URL: http://jispp.iut.ac.ir/article-1-1727-en.html
URL: http://jispp.iut.ac.ir/article-1-1727-en.html
1- Crop and Horticultural Science Research Department, Zanjan Agriculture and Natural Resources Research and Education Center (AREOO), Zanjan, Iran , s.shobeiri@yahoo.com
2- Crop and Horticultural Science Research Department, Zanjan Agriculture and Natural Resources Research and Education Center (AREOO), Zanjan, Iran
2- Crop and Horticultural Science Research Department, Zanjan Agriculture and Natural Resources Research and Education Center (AREOO), Zanjan, Iran
Abstract: (551 Views)
In order to investigate the effect of plant density on yield and physiological traits of two cultivars of lentils Kimia and Bilesvar, a factorial split plot experiment with a randomized complete block design with three replications was conducted at Khodabandeh Dryland Research Station in Zanjan in two cropping years 2015 to 2017. Three spacing between rows (15, 20 and 25 cm) and six levels of seed density (150, 175, 200, 225, 250 and 275 seeds per m2) were considered. Between the two years of the experiment, a significant difference was observed in terms of total yield at the 1%. In terms of the parameters of leaf temperature, stomatal conductance, substomatal CO2, photosynthesis rate at 5% and total yield at 1%, significant difference was observed between planting intervals. Significant difference was observed between the studied genotypes in terms of leaf temperature and total yield at 1% and water use efficiency at 5%. As the distance between the rows increased, the leaf temperature increased, so that the highest and lowest temperatures were observed at the distance between the rows of 25 and 15 cm, respectively. The highest and lowest stomatal conductance were obtained at the distance between rows of 15 and 25 cm, respectively. Increasing the row spacing from 15 to 25 cm decreased the total yield. At 15 cm row spacing, the lowest leaf temperature and the highest stomatal conductance, substomatal CO2 and photosynthesis rate were observed, and the highest yield was also obtained in this row distance; Therefore, by choosing this row distance, in terms of these physiological traits, the farm will be in more favorable condition and eventually a higher yield will be obtained. The highest and lowest yields were related to seed densities of 225 and 150, respectively. Of course, the density of 225 was not significantly different from the density of 200. Therefore, for the cultivation of dry lentils, the best density was 200 seeds per square meter and the best row spacing for planting was 15 cm.
Article number: 17
Type of Study: Research |
Subject:
others
Received: 2022/05/25 | Accepted: 2022/10/19 | Published: 2023/07/19
Received: 2022/05/25 | Accepted: 2022/10/19 | Published: 2023/07/19
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