Temat: post-control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study of postemergence-directed herbicides for redroot pigweed (Amaranthus retroflexus L.) control in winter wheat in southern Russia
Autorzy:: Zargar, M.
Bayat, M.
Astarkhanova, T.
Powiązania:: https://bibliotekanauki.pl/articles/2084772.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: post herbicide
redroot pigweed
weed control
winter wheat
Opis:: Redroot pigweed (Amaranthus retroflexus L). is a broadleaf weed in autumn crop fields in Russia. Four field experiments were performed in Stalskiy region, southern Russia in two growing seasons, 2016 and 2017, to investigate the effects of postemergence applications of applied alone or in tank mixtures in winter wheat cultivars Tanya and Bagrat. Redroot pigweed control was greatest with tribenuron and all herbicide treatments containing tribenuron. The lowest redroot pigweed control was with aminopyralid/florasulam (study 1) and triasulfuron (study 2), respectively, whereas redroot pigweed had intermediate responses to the other examined herbicides. Tribenuron plus fluroxypyr sprayed on wheat cultivar ‘Tanya’, and tribenuron plus triasulfuron on wheat cultivar ‘Bagrat’ resulted in increased wheat grain yields. Overall, tribenuron and herbicides containing tribenuron provided the most efficient redroot pigweed control compared with the other herbicides and consistently maintained optimal winter wheat yields. Tribenuron could ameliorate redroot resistance to herbicides in wheat fields in southern Russia.
Źródło:: Journal of Plant Protection Research; 2020, 60, 1; 7-13
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Valerian (Valeriana officinalis L.) tolerance to some post-emergence herbicides
Autorzy:: Monjezi, N.
Razmjo, J.
Karimmojeni, H.
Powiązania:: https://bibliotekanauki.pl/articles/65171.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: valerian
Valeriana officinalis
plant tolerance
post-emergence herbicide
herbicide
medicinal plant
photosynthesis inhibitor
weed control
Opis:: Valerian (Valeriana officinalis L.) is a medicinal plant, but its cultivation is restricted by weed competition. Therefore, three rates (0.75X, 1X, and 1.25X, where X is equal to the recommended dose of haloxyfop-R (methyl ester), sethoxydim, oxadiargyl, bentazon, oxadiazon, and oxyfluorfen) were applied at the 3–4 leaf stages to valerian plants. This application was done to select the herbicide type and rate for post-controlling broadleaf and grasses weeds in this species. Herbicide injury, Soil-Plant Analyses Development (SPAD) reading, number of leaves per plant, stem diameter, and fresh and dry weights were determined 10, 20, and 30 days after herbicide application. Oxyfluorfen application caused the most herbicide injury followed by bentazon. Injury increased as the rate and the days after application increased. Oxadiazon only caused significant damage 30 days after application under all three rates. Other treatments showed no marked injuries under any rate or date after application, as compared with the control. Effects on other measured traits depended on the trait, herbicide, and herbicide rate. The highest SPAD, leaf number, shoot diameter, fresh weight and dry weight, was recorded under application of 30 mg a.i. ∙ kg–1 soil oxadiargyl and 90 mg a.i. ∙ kg–1 soil oxadiazon, 81 mg a.i. ∙ kg–1 soil haloxyfop-R, 37.5 mg a.i. ∙ kg–1 soil oxadiargyl, 22.5 mg a.i. ∙ kg–1 soil oxadiargyl, 81 mg a.i. ∙ kg–1 soil haloxyfop-R, and 81 mg a.i. ∙ kg–1 soil haloxyfop-R, respectively. To sum up, the results showed that sethoxydim, oxadiargyl, and haloxyfop-R produced no significant symptoms of phytotoxicity or reduction of measured traits. This means that oxadiargyl, haloxyfop-R, and sethoxydim may be used safely for weed control of valerian at the rates used in this experiment under similar conditions.
Źródło:: Journal of Plant Protection Research; 2015, 55, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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