Effects of Trichoderma fungi on growth and productivity of rapeseed in late-season cultivation of East-Azarbaijan cold climate

Document Type : Research Paper

Authors

1 1- Associate Professor of Crop and Horticultural Science Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran

2 2- Associate Professor of Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

10.22059/ijfcs.2024.373101.655065

Abstract

The current research aimed to study the effect of delaying the fall planting date of rapeseed in cold climates using Trichoderma fungi. An experiment was conducted as a split plot based on an RCBD design with three replications using the Ahmadi cultivar in the East Azarbaijan Agriculture and Natural Resources Research and Education Center for two years (2021-23). The main factor was planting date including apropos (11 and 21 September) and late cultivation (1 and 11 October), and the sub-factor was Trichoderma fungi (Trichoderma harzianum) treatment including control, seed, and soil treatments. Delaying the planting date from 11 September to 11 October by increasing 20.7 percent in cold damage led to a decrease in seed and oil yields by 1425 and 676 Kg ha-1, respectively. The soil and seed treatment with fungi significantly increased plant growth rate and chlorophyll and decreased cold damage during winter from 35.2 in control (unused fungi) to 28.7 and 21.3 percent in soil and seed treatment respectively. Also, seed and oil yields increased. These effects were higher in seed treatment and seed yield increased by 27 and 27.6 percent on the 11 September and 11 December planting dates respectively, to soil treatment by fungi. According to the results, using Trichoderma fungi as a seed treatment on 11 October late cultivation date, increased seed yield from 2703.3 to 4128.6 Kg ha-1. The mentioned fungi by increasing fall growth and decreasing cold damage in rapeseed, caused a prevent of significant decrease in seed yield at late cultivations.

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Iranian Journal of Field Crop Science
Volume 55, Issue 3
October 2024

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History

  • Receive Date: 26 February 2024
  • Revise Date: 05 April 2024
  • Accept Date: 13 April 2024
  • Publish Date: 22 September 2024

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