Crop Growth and Yield Losses in Wheat Due to Little Seed Canary Grass Infestation Differ with Weed Densities and Changes in Environment

Hussain, Saddam; Khaliq, Abdul; Bajwa, Ali Ahsan; Matloob, Amar; Areeb, Ahsan; Ashraf, Umair; Hafeez, Abdul; Imran, Muhammad

doi:10.1590/s0100-83582017350100073

Cited by 20 publications

(10 citation statements)

References 27 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Winter wheat, in general, was faster to reach "BBCH 13" and "BBCH 21" than the grass species, which is in accordance with previous findings for A. myosuroides [29]. Sowing of winter wheat later than the optimum time exposed the early plant growth stages to reduced light and temperature conditions that resulted in slower growth and reduced tillering [30][31][32][33], which could partially explain the non-significant difference in thermal time among plant species to reach "BBCH 21" in 2017/18 (Figure 3). The information of thermal time needed for leaf and tiller appearance could help optimize herbicide application timings and dosages for effective control [20].…”

Section: Growth and Phenologysupporting

confidence: 90%

Growth and Phenology of Vulpia Myuros in Comparison with Apera Spica-Venti, Alopecurus Myosuroides and Lolium Multiflorum in Monoculture and in Winter Wheat

Akhter

Melander

Mathiassen

et al. 2020

Plants

View full text Add to dashboard Cite

Vulpia myuros has become an increasing weed problem in winter cereals in Northern Europe. However, the information about V. myuros and its behavior as an arable weed is limited. Field and greenhouse experiments were conducted in 2017/18 and 2018/19, at the Department of Agroecology in Flakkebjerg, Denmark to investigate the emergence, phenological development and growth characteristics of V. myuros in monoculture and in mixture with winter wheat, in comparison to Apera spica-venti, Alopecurus myosuroides and Lolium multiflorum. V. myuros emerged earlier than A. myosuroides and A. spica-venti but later than L. multiflorum. Significant differences in phenological development were recorded among the species. Overall phenology of V. myuros was more similar to that of L. multiflorum than to A. myosuroides and A. spica-venti. V. myuros started seed shedding earlier than A. spica-venti and L. multiflorum but later than A. myosuroides. V. myuros was more sensitive to winter wheat competition in terms of biomass production and fecundity than the other species. Using a target-neighborhood design, responses of V. myuros and A. spica-venti to the increasing density of winter wheat were quantified. At early growth stages “BBCH 26–29”, V. myuros was suppressed less than A. spica-venti by winter wheat, while opposite responses were seen at later growth stages “BBCH 39–47” and “BBCH 81–90”. No significant differences in fecundity characteristics were observed between the two species in response to increasing winter wheat density. The information on the behavior of V. myuros gathered by the current study can support the development of effective integrated weed management strategies for V. myuros.

show abstract

Section: Growth and Phenologysupporting

confidence: 90%

Growth and Phenology of Vulpia Myuros in Comparison with Apera Spica-Venti, Alopecurus Myosuroides and Lolium Multiflorum in Monoculture and in Winter Wheat

Akhter

Melander

Mathiassen

et al. 2020

Plants

View full text Add to dashboard Cite

show abstract

“…Similarly, Rajala et al (2011) reported that under field conditions an adequate water availability during grain filling increases late tillering, although this late tillering does not promote good grain yield due to quantity and quality of late tillers is often lower, and also delay harvesting due to uneven grain ripening. This could explain that 'Lasana' and 'Pandora-INIA' had a lower grain yield in the locality of Coihueco, when compared with the moderate water deficit level, since being subjected to more frequent irrigation, a greater water availability favored the emission of late tillers and a greater development of weeds, thus achieving lower yields due to the severe competition of weeds with wheat for growth resources (Rajala et al, 2011;Hussain et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Influence of different water deficit levels during grain filling on yield and total polyphenols content in spring wheat cultivars

Fuentealba-Sandoval¹,

Pedreros²,

Fischer³

et al. 2020

Chil. j. agric. res.

View full text Add to dashboard Cite

Wheat (Triticum aestivum L.) is often affected by abiotic stress such as high temperatures and water deficit. Due to this, grain yield can be reduced by a water deficit and an inadequate grain filling as well as affect synthesis of polyphenolic compounds. The aim of this study was to determine the influence of water deficit on yield in spring wheat cultivars during grain filling stage, and evaluate total polyphenol content in whole wheat flour. Experiments were conducted at two locations during 2016-2017 growing season, using a randomized complete block design with a split-plot arrangement, with 12 treatments consisting of three irrigations levels and four spring wheat cultivars. In Site 1, interaction (P < 0.05) was obtained between water deficit level and cultivar, 'Pantera-INIA CL' achieved highest grain yield (10.5 Mg ha-1), with a well-watered treatment, while 'Lasana' reached lowest grain yield (8.5 Mg ha-1), with a severe water deficit. However, water deficit did not affect significantly (P > 0.05) grain yield in Site 2, and differences were observed only between cultivars (P < 0.05) in a range of 6.1 to 7.1 Mg ha-1. Total polyphenol content was not affected by water deficit, differences were only observed between cultivars in both locations (P < 0.05). However, cultivars showed a higher total polyphenol content in Site 1. Water deficit level did not negatively influence yield of four wheat cultivars evaluated in Site 2. While in Site 1, only yield of 'Lasana' and 'Pantera-INIA CL' was reduced, with severe water deficit.

show abstract

“…It might also be observed from the Table 2 that more number of farm fields (5.0 ) has P. minor population between 5 to 15 plants per square meter in low control (control less than 50%) of P. minor. Infestation of P. minor even at 10 plants per square meter considerably reduced the growth and yield of wheat [11].…”

Section: Infestation Of P Minormentioning

confidence: 97%

A survey of Phalaris minor Retz. Management in Wheat in Trans-Gangetic Plains Region of India

Gill

2020

CJAST

View full text Add to dashboard Cite

A survey was conducted to measure the extent of control of Littleseed canarygrass (Phalaris minor Retz.) in wheat crop in Ferozepur district in the state of Punjab (Trans-Gangetic Plains region) by Punjab Agricultural University Farmer Advisory Service Centre (FASC) Ferozepur during rabi 2018-19. The study aims to find out the causes of poor control of Phalaris minor in wheat crop on farm fields of farmers of Ferozepur district. 90 farm fields were selected randomly for collection of data. Survey data were analyzed using completely randomized design. Survey study revealed that sowings of wheat after first fortnight of November have significantly higher number of farm fields with medium control (control 50 to 60%) (3.0 farm fields) to low control (control less than 50%) (6.3 farm fields) environments of P. minor. High control environment (control more than 60%) has significantly higher number of farm fields (11.7) with less infestation of P. minor (population of P. minor less than 5 plants per square meter). However, in low control environments higher number of farm fields has population of P. minor 15 and more than 15 plants per square meter. P. minor appeared more in significantly higher number of farm fields (14.3), (3.7) and (7.7) in high control, medium control and less environment, respectively in the month of December. Significantly higher number of farm fields (16) used recommended herbicide to control P. minor in wheat crop in high control environment. However, farmers apply unrecommended herbicide in higher number of farm fields. Herbicide was applied timely to control P. minor in wheat crop in significantly higher number of farm fields (14) in high control environment. In low control environment farmers applied herbicide late to control P. minor in significantly higher number of farm fields (8.0). Farmers used right type of nozzle (Flat Fan and Flood Jet) to apply herbicide to control P. minor in significantly higher number (14) of farm fields in high control environment. Farmers used wrong type of nozzle to apply herbicide to control P. minor in more number of farm fields in medium control and less control environments. Optimum volume of water (150 litres of water per acre) was used to apply herbicide to control P. minor in wheat crop in significantly higher number of farm fields (17) in high control environment. Farmers used low volume of water (100 to 125 litres per acre) to apply herbicide to control P. minor in significantly higher number of farm fields (8.0) in low control environment. Farmers did not practice herbicide rotation in significantly higher number of farm fields 4.0 and 8.0 in medium control and low control respectively. P. minor inflorescence was not removed by farmers in significantly higher number of farm fields 4.0 and 8.0 in medium control and low control environments respectively. Inaproppropriate herbicide selection, method of application, delay in sowing of wheat and application of herbicide, lack of herbicide rotaion and non-removal of P.minor inflorescence were the reasons for poor control of P. minor in wheat crop.

show abstract

Crop Growth and Yield Losses in Wheat Due to Little Seed Canary Grass Infestation Differ with Weed Densities and Changes in Environment

Cited by 20 publications

References 27 publications

Growth and Phenology of Vulpia Myuros in Comparison with Apera Spica-Venti, Alopecurus Myosuroides and Lolium Multiflorum in Monoculture and in Winter Wheat

Growth and Phenology of Vulpia Myuros in Comparison with Apera Spica-Venti, Alopecurus Myosuroides and Lolium Multiflorum in Monoculture and in Winter Wheat

Influence of different water deficit levels during grain filling on yield and total polyphenols content in spring wheat cultivars

A survey of Phalaris minor Retz. Management in Wheat in Trans-Gangetic Plains Region of India

Contact Info

Product

Resources

About