Effect of Mycorrhiza and Humic Acid Application on the Quantitative and Qualitative Yield of Red Bean, Derakhshan Cultivar
a factorial pot experiment was conducted in the form of a complete random block design with three repetitions under greenhouse condition. The first factor of the study was mycorrhiza at three levels, namely control (no mycorrhiza), Glomus intraradices strain, and Glomus mosseae strain. The second factor of the study included three levels of humic acid, namely 0 (control), 15, and 30 mg L-1. The results showed that with the application of mycorrhiza and humic acid, the number of seeds per plant, seed weight per plant, chlorophyll index, percentage of seed protein content, and nitrogen, phosphorus, and potassium contents of leaves increased. The highest seed weight per plant (13.47 g) was recorded in the red beans treated with 30 mg L-1 of humic acid + Glomus intraradices strain and 13.01 g and 13.72 g in the plants treated with 15 and 30 mg L-1 of humic acid, respectively along with Glomus mosseae strain. Also, the highest percentage of seed protein was 26.15% obtained from the treatment with 30 mg L-1 of humic acid + Glomus intraradices and 25.23% and 27.93% in the treatments with 15 mg L-1 and 30 mg L-1 of humic acid, respectively along with Glomus mosseae. Maximum leaf nitrogen content (5.85%) was obtained from the application of 30 mg L-1 of humic acid with Glomus mosseae. Mycorrhizae and humic acid seem to be able to improve the yield and yield components of red beans by providing nutrients to the plant
Humic acid , Mycorrhiza , Nitrogen , Protein , Red beans
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