Influence of soil moisture levels on the growth and reproductive behaviour of Avena fatua and Avena ludoviciana

Sahil,; Mahajan, Gulshan; Loura, Deepak; Raymont, Katherine; Chauhan, Bhagirath Singh

doi:10.1371/journal.pone.0234648

Cited by 17 publications

(6 citation statements)

References 39 publications

(68 reference statements)

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“…Plants under no water stress (100% SWC) had the maximum shoot biomass (23 g plant -1 ) and root biomass (5 g plant -1 ). Similar findings were reported for jungle rice, itchgrass, wild oat, sterile oat, and common waterhemp (Chauhan 2013;Chauhan and Johnson 2010;Sahil et al 2020;Sarangi et al 2015). Approximately 85% and 68% reduction in shoot biomass was recorded at 12.5% and 25% SWC, respectively, relative to 100% SWC.…”

Section: Resultssupporting

confidence: 83%

“…Clayton], although growth and seed production decreased with increasing water stress, both were lower at 100% than at 75% field capacity (Chauhan 2013). Growth and reproductive behavior of wild oat (Avena fatua L.) and sterile oat (A. ludoviciana L.) decreased with increasing water stress (Sahil et al 2020). Bengal dayflower (Commelina benghalensis L.), spiny amaranth (Amaranthus spinosus L.), and Chinese sprangletop [Leptochloa chinensis (L.) Nees] have also been reported to have the ability to produce shoot biomass and reproduce under water stress (Chauhan and Abugho 2013;Webster and Grey 2008).…”

Section: Introductionmentioning

confidence: 99%

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Influence of soil water content on growth and panicle production of fall panicum (Panicum dichotomiflorum)

et al. 2022

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Fall panicum is a problematic weed in cropping systems including rice in southern Florida. There is limited information on growth and reproductive ability of fall panicum in water-stressed environments. The objective of this study was to determine the effect of 12.5, 25, 50, 75, and 100% pot soil water content (SWC) levels on fall panicum growth and panicle branch production under greenhouse conditions. Fall panicum height, number of leaves and tillers decreased over time as SWC decreased. Fall panicum height decreased by 65 and 50% at 12.5 and 25% SWC, respectively relative to height achieved at 100% SWC. Plants at 50 to 100% SWC were able to achieve 50% tiller production within 31 to 43 days compared with 28 days at 25% SWC. The 50% tiller production was not reached at 12.5% SWC during the duration of the study. Fall panicum shoot and root biomass, total leaf area, and number of panicle branches plant-1 at 56 days after SWC treatment initiation decreased as SWC decreased. Fall panicum biomass decreased 83 to 85 and 66 to 68% at 12.5 and 25% SWC, respectively relative to 100% SWC. Leaf area declined 79 and 65% at 12.5 and 25% SWC levels, respectively compared to the 100% SWC. Fall panicum was able to produce panicles at all SWC levels although the number of panicle branches were significantly lower as SWC decreased. Plants at 12.5 and 25% SWC produced 82 and 59% less panicle branches, respectively compared with plants at 100% SWC. This study shows that SWC influences the growth and reproductive capacity of fall panicum. Although fall panicum did not reach its full growth potential at low SWC levels, it was able to survive and develop panicles showing its ability to adopt and reproduce under dry conditions.

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Influence of soil water content on growth and panicle production of fall panicum (Panicum dichotomiflorum)

et al. 2022

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“…It is a wild oat that is widespread all over the world, growing in various climatic zones from the tropics to the polar circle. A. fatua is considered to be one of the worst annual weeds in temperate zone cereals [ 28 , 29 ], causing enormous problems in agriculture [ 30 , 31 , 32 , 33 ]. Loskutov and Rines [ 1 ] have concluded that this species is a source of resistance to various oat diseases.…”

Section: Introductionmentioning

confidence: 99%

Is Every Wild Species a Rich Source of Disease Resistance? Avena fatua L.—Potential Donor of Resistance to Powdery Mildew

Okoń

Ociepa

Nucia

et al. 2021

Plants

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Identifying effective sources of disease resistance is an important aspect of an effective plant protection strategy. Wild species related to cultivars constitute a rich reservoir of resistance genes. Studies conducted in oat have shown that wild species are donors of resistance genes to crown and stem rust, powdery mildew or fusarium head blight. The aim of the present study was to prove whether A. fatua could be a source of effective resistance genes to powdery mildew. This species is widespread all over the world due to its very good adaptability and can be regarded as a potential source of resistance to fungal diseases, including powdery mildew. The conducted research has shown that A. fatua is a species with a low level of resistance to powdery mildew when compared to other wild species of the genus Avena L. A total of 251 accessions were evaluated, and only 23 were identified as resistant to the individual isolates used in the host-pathogen tests. It follows that resistance to powdery mildew is not common among wild Avena species, and its good environmental adaptation is not associated to resistance to powdery mildew.

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“…High infestations of A. ludoviciana in winter season crops could be due to its favourable biological attributes (Mahajan and Chauhan 2021a). For example, high seed-shattering ability, adaptation to a wide range of temperatures and water stress for germination and growth, and innate dormancy in seeds are some of the attributes that make A. ludoviciana emerge at different periods of crop seasons (Sahil et al 2020;Mahajan and Chauhan 2021c). Emergence pattern studies indicate the potential of A. ludoviciana to emerge from March to October (autumn, winter, and spring) in eastern Australia (Mahajan and Chauhan 2021b).…”

Section: Introductionmentioning

confidence: 99%

Interference of sterile oat (Avena ludoviciana) and Mexican pricklepoppy (Argemone mexicana) in chickpea

Mahajan

Chauhan

2023

Crop & Pasture Science

Self Cite

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Context. Knowledge gaps exist for the interference of Avena ludoviciana and Argemone mexicana in chickpea grown in eastern Australia. Aims. This research aimed to examine the effect of different interference levels of A. ludoviciana and A. mexicana for their potential to cause yield loss in chickpea. Methods. Experiments were conducted in a randomised complete block design with five weed infestation levels of both weeds (none, low, medium, high, and very high) in three replications. Key results. Infestations of A. ludoviciana and A. mexicana at 15 and 17 plants m −2 caused an 83 and 48% reduction in chickpea yield, respectively, compared with weed-free situations. Based on the regression model, a 50% yield reduction of chickpea occurred at 10 and 17 plants m −2 of A. ludoviciana and A. mexicana, respectively. Based on the modified hyperbolic model, maximum seed production of A. ludoviciana and A. mexicana in chickpea at an infestation level of 1 plant m −2 was estimated at 366 and 7800 seeds m −2 , respectively. At crop harvest, seed retention of A. ludoviciana and A. mexicana was greater than 50 and 90%, respectively. Conclusions. A. ludoviciana and A. mexicana infestation in chickpea caused a substantial reduction in crop yield. High seed retention in A. mexicana and A. ludoviciana in chickpea suggests the possibility to manage these two weeds through harvest weed seed control. Implications. The information generated from this study could help in strengthening integrated weed management in chickpea.

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Influence of soil moisture levels on the growth and reproductive behaviour of Avena fatua and Avena ludoviciana

Cited by 17 publications

References 39 publications

Influence of soil water content on growth and panicle production of fall panicum (Panicum dichotomiflorum)

Influence of soil water content on growth and panicle production of fall panicum (Panicum dichotomiflorum)

Is Every Wild Species a Rich Source of Disease Resistance? Avena fatua L.—Potential Donor of Resistance to Powdery Mildew

Interference of sterile oat (Avena ludoviciana) and Mexican pricklepoppy (Argemone mexicana) in chickpea

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