Abstract
Parthenium weed (Parthenium hysterophorus L.) is an emerging weed species in direct-seeded aerobic systems of rice production. This two-year field study was conducted to evaluate the effect of five different densities (0, 5, 10, 15 and 20 plants m −2 ) of parthenium weed on rice yield and yield-related attributes. Parthenium weed produced ca. 38 to 178% higher biomass at its densities of 10 to 20 plants m −2 as compared to the lowest density of 5 plants m −2 . The paddy yield and yield-related attributes were negatively affected with an increase in the parthenium weed density. In both years, the highest reductions in number of rice panicles (14 to 17%), panicle length (10 to 11%), number of grains per panicle (11 to 18%), 1000-grain weight (8 to 21%) and paddy yield (30 to 35%) were recorded at the highest parthenium weed density (20 plants m −2 ) tested. However, the lower densities of 5 to 15 parthenium weed plants m −2 also caused 11 to 24% and 12 to 26% losses in paddy yield during the years 2016 and 2017, respectively. Therefore, this weed species should be controlled below the density of 5 plants m −2 to avoid the substantial yield losses (over 15%) in direct-seeded rice.
| Original language | English |
|---|---|
| Pages (from-to) | 796-808 |
| Number of pages | 13 |
| Journal | Archives of Agronomy and Soil Science |
| Volume | 65 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 12 May 2019 |
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Effect of different densities of parthenium weed (Parthenium hysterophorus L.) on the performance of direct-seeded rice under aerobic conditions. / Bajwa, Ali Ahsan; Ullah, Aman; Farooq, Muhammad; Chauhan, Bhagirath Singh; Adkins, Steve.
In: Archives of Agronomy and Soil Science, Vol. 65, No. 6, 12.05.2019, p. 796-808.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of different densities of parthenium weed (Parthenium hysterophorus L.) on the performance of direct-seeded rice under aerobic conditions
AU - Bajwa, Ali Ahsan
AU - Ullah, Aman
AU - Farooq, Muhammad
AU - Chauhan, Bhagirath Singh
AU - Adkins, Steve
PY - 2019/5/12
Y1 - 2019/5/12
N2 - Parthenium weed (Parthenium hysterophorus L.) is an emerging weed species in direct-seeded aerobic systems of rice production. This two-year field study was conducted to evaluate the effect of five different densities (0, 5, 10, 15 and 20 plants m −2 ) of parthenium weed on rice yield and yield-related attributes. Parthenium weed produced ca. 38 to 178% higher biomass at its densities of 10 to 20 plants m −2 as compared to the lowest density of 5 plants m −2 . The paddy yield and yield-related attributes were negatively affected with an increase in the parthenium weed density. In both years, the highest reductions in number of rice panicles (14 to 17%), panicle length (10 to 11%), number of grains per panicle (11 to 18%), 1000-grain weight (8 to 21%) and paddy yield (30 to 35%) were recorded at the highest parthenium weed density (20 plants m −2 ) tested. However, the lower densities of 5 to 15 parthenium weed plants m −2 also caused 11 to 24% and 12 to 26% losses in paddy yield during the years 2016 and 2017, respectively. Therefore, this weed species should be controlled below the density of 5 plants m −2 to avoid the substantial yield losses (over 15%) in direct-seeded rice.
AB - Parthenium weed (Parthenium hysterophorus L.) is an emerging weed species in direct-seeded aerobic systems of rice production. This two-year field study was conducted to evaluate the effect of five different densities (0, 5, 10, 15 and 20 plants m −2 ) of parthenium weed on rice yield and yield-related attributes. Parthenium weed produced ca. 38 to 178% higher biomass at its densities of 10 to 20 plants m −2 as compared to the lowest density of 5 plants m −2 . The paddy yield and yield-related attributes were negatively affected with an increase in the parthenium weed density. In both years, the highest reductions in number of rice panicles (14 to 17%), panicle length (10 to 11%), number of grains per panicle (11 to 18%), 1000-grain weight (8 to 21%) and paddy yield (30 to 35%) were recorded at the highest parthenium weed density (20 plants m −2 ) tested. However, the lower densities of 5 to 15 parthenium weed plants m −2 also caused 11 to 24% and 12 to 26% losses in paddy yield during the years 2016 and 2017, respectively. Therefore, this weed species should be controlled below the density of 5 plants m −2 to avoid the substantial yield losses (over 15%) in direct-seeded rice.
KW - Direct-seeded rice
KW - Parthenium hysterophorus
KW - weed management
KW - yield losses
UR - http://www.scopus.com/inward/record.url?scp=85054365107&partnerID=8YFLogxK
U2 - 10.1080/03650340.2018.1525705
DO - 10.1080/03650340.2018.1525705
M3 - Article
VL - 65
SP - 796
EP - 808
JO - ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE
JF - ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE
SN - 0365-0340
IS - 6
ER -