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Volume 13
Issue 9
10.3390/su13095091
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Article

Preliminary Reports on Comparative Weed Competitiveness of Bangladeshi Monsoon and Winter Rice Varieties under Puddled Transplanted Conditions

by
A. K. M. Mominul Islam
1,*,
Mohammad Nasir
1,
Mahmuda Akter Mou
1,
Sabina Yeasmin
1,
Md. Shafiqul Islam
1,
Sharif Ahmed
2,
Md. Parvez Anwar
1,
Adel Hadifa
3,
Alaa Baazeem
4,
Muhammad Aamir Iqbal
5,
Abdul Shukor Juraimi
6 and
Ayman EL Sabagh
7,*
1
Agro Innovation Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
2
International Rice Research Institute, Bangladesh Office, Dhaka 1213, Bangladesh
3
Rice Research and Training Center (RRTC), Field Crops Research Institute, Agricultural Research Center, Sakha, Kafr Elsheikh 33717, Egypt
4
Department of Biology, College of Science, Taif University, Taif 21944, Saudi Arabia
5
Department of Agronomy, Faculty of Agriculture, University of Poonch Rawalakot, Rawalakot 12350, Azad Jammu and Kashmir, Pakistan
6
Department of Crop Science, Universiti Putra Malaysia (UPM), Selangor 43400, Malaysia
7
Department of Agronomy, Faculty of Agriculture, University of Kafrelsheikh, Kafr Elsheikh 33516, Egypt
*
Authors to whom correspondence should be addressed.
Sustainability 2021, 13(9), 5091; https://doi.org/10.3390/su13095091
Submission received: 18 March 2021 / Revised: 27 April 2021 / Accepted: 29 April 2021 / Published: 1 May 2021
(This article belongs to the Special Issue Sustainable Management of Weeds and Herbicide Resistance)
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Abstract

Weed-competitive rice cultivars, a viable tool for integrated weed management of rice-field weeds, may greatly reduce the weed pressure and excessive dependence on herbicide in controlling weeds. Based on this premise, field experiments were conducted in 2018 and 2019 during the monsoon and winter rice-growing seasons at the Agronomy Field Laboratory of Bangladesh Agricultural University, Bangladesh, to evaluate the weed competitiveness of the selected rice varieties. A total of 42 monsoon and 28 winter rice varieties from Bangladesh were evaluated under “weedy” and “weed-free” conditions in the puddled transplanted system of cultivation. The field experiments were designed with three replications in a randomized complete block design. The results revealed that weed competition greatly reduces the yield of rice, and relative yield loss was 15–68% and 20–50% in monsoon and winter season rice, respectively. The lowest relative yield losses were recorded in monsoon rice from the variety BU dhan 1 (18%) and from the winter rice BRRI hybrid dhan5 (23.7%), which exhibited high weed tolerance. The weed competitive index (WCI) greatly varied among the varieties in both seasons and the monsoon season, ranging from 0.4 to 2.8, and the highest value was recorded from the hybrid variety Dhani Gold followed by BU dhan 1. In winter season rice, the WCI varied 0.25 to 2.4 and the highest value was recorded from the variety BRRI hybrid dhan3, followed by hybrid variety Heera 6. In monsoon rice, hybrid Dhani Gold was the most productive, but BU dhan 1 was the most weed competitive variety. Among the winter-grown varieties, the hybrid Heera 6 was the most productive, and the most weed competitive. Our research confirmed a high degree of variability in weed competitiveness among the 70 Bangladeshi rice varieties tested.
Keywords: weed suppressive ability; rice varieties; relative yield loss; puddled transplanted system weed suppressive ability; rice varieties; relative yield loss; puddled transplanted system

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MDPI and ACS Style

Islam, A.K.M.M.; Nasir, M.; Akter Mou, M.; Yeasmin, S.; Islam, M.S.; Ahmed, S.; Anwar, M.P.; Hadifa, A.; Baazeem, A.; Iqbal, M.A.; et al. Preliminary Reports on Comparative Weed Competitiveness of Bangladeshi Monsoon and Winter Rice Varieties under Puddled Transplanted Conditions. Sustainability 2021, 13, 5091. https://doi.org/10.3390/su13095091

AMA Style

Islam AKMM, Nasir M, Akter Mou M, Yeasmin S, Islam MS, Ahmed S, Anwar MP, Hadifa A, Baazeem A, Iqbal MA, et al. Preliminary Reports on Comparative Weed Competitiveness of Bangladeshi Monsoon and Winter Rice Varieties under Puddled Transplanted Conditions. Sustainability. 2021; 13(9):5091. https://doi.org/10.3390/su13095091

Chicago/Turabian Style

Islam, A. K. M. Mominul, Mohammad Nasir, Mahmuda Akter Mou, Sabina Yeasmin, Md. Shafiqul Islam, Sharif Ahmed, Md. Parvez Anwar, Adel Hadifa, Alaa Baazeem, Muhammad Aamir Iqbal, and et al. 2021. "Preliminary Reports on Comparative Weed Competitiveness of Bangladeshi Monsoon and Winter Rice Varieties under Puddled Transplanted Conditions" Sustainability 13, no. 9: 5091. https://doi.org/10.3390/su13095091

APA Style

Islam, A. K. M. M., Nasir, M., Akter Mou, M., Yeasmin, S., Islam, M. S., Ahmed, S., Anwar, M. P., Hadifa, A., Baazeem, A., Iqbal, M. A., Juraimi, A. S., & EL Sabagh, A. (2021). Preliminary Reports on Comparative Weed Competitiveness of Bangladeshi Monsoon and Winter Rice Varieties under Puddled Transplanted Conditions. Sustainability, 13(9), 5091. https://doi.org/10.3390/su13095091

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