Allelopathic effects of papaver somniferum on germination and initial seedling growth of echinochloa cruss-galli | [Pakistan Journal of Weed Science Research • 2021]

Author(s):

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

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

3. Sadia Afzal: Department of Botany, University of Agriculture, Faisalabad-3800, Pakistan

4. Rizwan Maqbool: Department of Agronomy, University of Agriculture, Faisalabad-3800, Pakistan

5. Hasnain Waheed: Department of Agronomy, College of Agriculture, University of Sargodha-40100, Pakistan

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

7. Muhammad Ikram: Department of Botany, PMAS Arid Agriculture University, Rawalpindi-46300, Pakistan.

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

9. Muhammad Adnan: Department of Agronomy, College of Agriculture, University of Sargodha-40100, Pakistan

10. Qaisar Mehmood: Department of Agricultural Sciences, The University of Haripur, Pakistan

11. Hasnain Umer: Department of Agronomy, University of Agriculture, Faisalabad-3800, Pakistan

Abstract:

Weeds are unwanted plants in crop that can be controlled by different methods among them use of aqueous extracts of crops is an imperative method. In this method allelochemicals present in crop plant help in suppressing or inhibiting weeds. Therefore, this study was planned to investigate the allopathic potential of aqueous extract of winter crop Papaver somniferum (opium) on summer weed Echinochloa cruss-galli (barnyard grass. The experiment comprised of seven concentrations (0, 0.25, 0.50, 1, 2, 4, and 8%) of different plant parts i.e., leaves, stem and flower of P. somniferumwere. All the tested concentrations and plant parts of P. somniferum significantly reduced mean emergence time, germination index, germination percentage, time to 50% germination as well as well growth of E. crussgalli weed. However, maximum mean emergence time (9.07 days), time to 50% germination (3.67 days) was noted by applying leaves and stem extract, respectively. Application of aqueous extract of stem at 8% concentration resulted in greatest time to complete 50% germination (5.42 days) and lowest fresh weight (6.28 g), dry weight (1.00 g) and root length (0.33 cm) of E. cruss-galli. Whereas leaf extract at 8% concentration produces less shoot length (1.13 cm) and more emergence time (9.18 days). Lowest emergence percentage (6.67%) and germination index (0.89) were produced by aqueous extract of fruit at 8% concentration. On the basis of this experiment, it can be concluded that higher concentration (8%) of stem extract of P. somniferum was used to biologically control the infestation of E. cruss-galli weed.

Page(s): 239-251

DOI: DOI not available

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

Keywords:

Allelopathic effect , Seedling growth , Echinochloa crussgalli , Papaver somnifrum

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