نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی تولید و ژنتیک گیاهی، دانشگاه رازی، کرمانشاه، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background & Objectives: The objectives of this study were evaluation of radiation absorption and use efficiency, and finally grain yield of Safflower and Lathyrus in intercropping system under dryland farming.
Materials and Methods: This experiment was conducted as a randomized complete block design with three replications and five treatments at Razi University during 2018-2019. The experimental treatments included monoculture of Safflower, monoculture of Lathyrus, and three intercropping arrangements (25:75, 50:50, and 75:25 ratios of Safflower and Lathyrus, respectively).
Results: The leaf area index and radiation absorption in intercropping compared to monoculture increased by 19.3% and 50.7%, respectively. The maximum crop growth rate and relative growth ration of safflower in the conditions of intercropping than monoculture improved by 10.2% and 16.8%, respectively. The total dry matter accumulation in intercropping was higher by 7% compared to monoculture. In the conditions of intercropping, the light use efficiency was improved compared to monoculture. the highest grain yield of safflower was observed in monoculture, which of course was not significantly different with the treatment of 25:75 ratio and 50:50 treatment of safflower and Lathyrus.
Conclusion: Among the tested arrangements in this study, replacement intercropping of Safflower and Lathyrus with a ratio of 50:50 was superior in terms of growth indicators and yield, and was the most suitable arrangement of intercropping in the present experiment.
کلیدواژهها [English]
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