Allelopathic potential of aqueous extracts of sow thistle weed on emergence and seedling growth of red rice | [Pakistan Journal of Weed Science Research • 2021]

Author(s):

1. Muhammad Ather Nadeem: Department of Agronomy, College of Agriculture, University of Sargodha-40100,Sargodha,Pakistan

2. Bilal Ahmad Khan: Department of Agronomy, College of Agriculture, University of Sargodha-40100,Sargodha,Pakistan

3. Saima Anwar: Department of Botany, University of Agriculture Faisalabad-38000,Pakistan

4. Rizwan Maqbool: Department of Agronomy, University of Agriculture Faisalabad-38000,Pakistan

5. Mohsin Amin: Department of Agronomy, College of Agriculture, University of Sargodha-40100,Sargodha,Pakistan

6. Amir Aziz: Department of Soil & Environmental Sciences, College of Agriculture, University of Sargodha-40100,Sargodha,Pakistan

7. Iram Batool: Department of Agronomy, University of Agriculture Faisalabad-38000,Pakistan

8. Athar Mahmood: Department of Agronomy, University of Agriculture Faisalabad-38000,Pakistan

9. Abdul Rehman: Department of Agronomy, College of Agriculture, University of Sargodha-40100,Sargodha,Pakistan

10. Aafaq Ali: Department of Botany, University of Sargodha-40100,Sargodha,Pakistan

11. Aneela Nijabat: Department of Botany, University of Sargodha-40100,Sargodha,Pakistan

Abstract:

Chemical weed control method caused environmental hazards and residual effects in crops and soil. Alternate approach to control weeds is getting attentions in sustainable production system. Use of aqueous extracts of weed is getting scientific attention as ecofriendly alternative to chemical herbicides especially under scenario of fast increasing herbicide resistance in weeds. To investigate the herbicidal potential of aqueous extract of winter weed of Sonchus oleraceus L. (sow thistle) on summer weed Oryza punctata L. (red rice) seed emergence and initial seedling growth, the present study was planned. In this study, seeds of O. punctata were incubated in seven concentrations (0, 0.25, 0.50, 1, 2, 4, and 8%) of different parts i.e. leaf, stem and flower of S. oleraceus. All the tested concentrations of various plant parts significantly inhibited the mean emergence time, emergence index, emergence percentage (%), time taken to 50% emergence as well as growth of O. punctata. However, maximum mean emergence time (5.26 days), minimum germination index (1.69), germination percentage (40%), root length (2.04 cm), shoot length (5.71 cm), fresh weight (59 g), dry weight (4.06 g) was noted at 8% concentration with fruit aqueous extract. Seeds of O. punctata took maximum time to complete 50% emergence (3.33 days) under control where we applied distilled water. Results suggested that the fruit extract of S. oleraceus at 8% concentration can be used potential bio-herbicide for the control of O. punctata.

Page(s): 201-212

DOI: DOI not available

Published: Journal: Pakistan Journal of Weed Science Research, Volume: 27, Issue: 2, Year: 2021

Keywords:

chemical , Ecofriendly , fruit extract and herbicidal potential

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