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Genetic Variation for Tolerance to Herbicide Imazethapyr in Lentil (Lens culinaris Medik.)

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Title Genetic Variation for Tolerance to Herbicide Imazethapyr in Lentil (Lens culinaris Medik.)
 
Creator Sharma, Sheetal
 
Contributor Singh, Sarvjeet
Aggarwal, Navneet
Kaur, Jagmeet
Gill, Ranjit Kaur
Kushwah, Ashutosh
Patil, Somanagouda
Agrawal, Shiv Kumar
 
Subject genetic
morpho-physiological traits
post-emergence herbicide
chlorophyll content
 
Description Identification of lentil genotypes tolerant to post-emergence herbicides and incorporation of herbicide tolerance in to high yielding varieties can prove a boon for developing effective integrated weed management strategy in lentil cultivation. A set of 180 diverse lentil genotypes was screened during two seasons for tolerance to post-emergence herbicide, imazethapyr. The herbicide imazethapyr was sprayed at 75 g a.i. ha−1 at 50 days after sowing and genotypes were scored initially after 14 days of spray and thereafter 45 days of spray when plants showed recovery. Large
variations among the genotypes were observed for tolerance to imazethapyr herbicide. On a 1-5 scale, 12 genotypes were found tolerant, 46 moderately tolerant, 112 sensitive and 10 highly sensitive during the first season, while in the second season, 11 genotypes were found tolerant, 51 moderately tolerant, 110 sensitive and 8 highly sensitive. Based on screening during the first season, a small set of 30 genotypes, including some tolerant, moderately tolerant, sensitive and highly sensitive, was evaluated to determine the effect of herbicide on morpho-physiological traits, yield and yield components. Adverse effect of imazethapyr herbicide was observed for plant height, 2 days to 50% flowering and pod initiation, biomass accumulation, leaf area index, specific leaf weight, crop growth rate, chlorophyll content, 100-seed weight, pods plant-1 and seed yield when compared to control (unsprayed). Tolerant genotypes showed less reduction for most of the morpho-physiological traits, yield components and yield. Five genotypes namely LL699, LL1397, IPL406, EC78452 and LL1203 demonstrated higher herbicide tolerance with less adverse effect on various morpho-physiological traits and recorded less reduction (
 
Date 2018-04-18
2017-03-12T21:55:48Z
2017-03-12T21:55:48Z
 
Type Journal Article
 
Identifier https://www.tandfonline.com/doi/abs/10.1080/03650340.2018.1463519?journalCode=gags20
https://mel.cgiar.org/reporting/download/hash/6oxdLTyl
Sheetal Sharma, Sarvjeet Singh, Navneet Aggarwal, Jagmeet Kaur, Ranjit Kaur Gill, Ashutosh Kushwah, Somanagouda Patil, Shiv Kumar Agrawal. (18/4/2018). Genetic Variation for Tolerance to Herbicide Imazethapyr in Lentil (Lens culinaris Medik. ). Archives of Agronomy and Soil Science, 64 (13), pp. 1818-1830.
https://hdl.handle.net/20.500.11766/6404
Limited access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher Taylor & Francis (Routledge) (STM, Behavioural Science and Public Health Titles)
 
Source Archives of Agronomy and Soil Science;64,(2018) Pagination 1818-1830