Period prior to interference of barnyardgrass is modified due to the spraying of cyhalofop-butyl alone or associated with penoxsulam in paddy rice crop

Agostinetto, Dirceu; Souza, Edna A.; Andrés, A.; Ulguim, André da Rosa; Schimitz, Maicon Fernando; Goulart, Francisco

doi:10.51694/advweedsci/2021;39:00001

Cited by 3 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Penelitian yang dilakukan oleh Schaedler et al (2013) melaporkan bahwa penggunaan setengah dosis herbisida Penoksulam yaitu 15 gram bahan aktif/ha telah mampu menurunkan bobot kering gulma Fimbristylis miliacea lebih dari 50% sedangkan penggunaan dosis yang lebih tinggi hingga 120 gram bahan aktif/ha mampu menurunkan bobot kering gulma sampai dengan 80%. Tingginya bobot kering gulma pada perlakuan kontrol dibanding dengan perlakuan lain dikarenakan Fimbristylis miliacea termasuk kedalam tumbuhan dengan mekanisme fotosintesis C4 yang tinggi tingkat pertumbuhan dan efisiensinya dalam penggunaan sumber daya lingkungan dibandingkan dengan mekanisme fotosintesis pada tanaman C3 seperti padi (Agostinetto et al, 2021).…”

Section: Fimbristylis Miliaceaunclassified

Pengaruh Dosis Herbisida Campuran Penoksulam Dan Pretilaklor Terhadap Gulma, Pertumbuhan Dan Hasil Padi Sawah

Sumekar¹,

Widayat²

2022

AGRIVET

View full text Add to dashboard Cite

Gulma adalah kendala biotik utama yang dapat mengakibatkan penurunan hasil gabah pada padi sawah. Teknik pengendalian secara kimia memberikan pengaruh yang cepat serta biaya yang lebih rendah sehingga lebih efektif. Penelitian ini bertujuan untuk mencari dosis herbisida campuran yang efektif dalam menekan pertumbuhan gulma sehingga meningkatkan pertumbuhan dan hasil tanaman padi sawah. Penelitian ini dilaksanakan pada bulan Agustus-Desember 2021 di Desa Ciluncat, Kecamatan Cangkuang, Kabupaten Bandung, Jawa Barat. Penelitian ini menggunakan Rancangan Acak Kelompok dengan 7 perlakuan dan 4 ulangan. Perlakuan terdiri dari; 5 dosis herbisida campuran Penoksulam 15 g/l + Pretilaklor 385 g/l (dengan dosis 1,00 l/ha, 1,50 l/ha, 2,00 l/ha, 2,50 l/ha, 3,00 l/ha), penyiangan manual, dan kontrol (tanpa penyiangan dan tanpa herbisida). Hasil penelitian menunjukkan bahwa herbisida campuran Penoksulam 15 g/l + Pretilaklor 385 g/l pada dosis 1,00 l/ha sampai dengan 3,00 l/ha efektif dalam menekan pertumbuhan gulma dominan Ludwigia octovalvis, Cyperus difformis, Fimbristylis miliacea, Ammania coccinea, Monochoria vaginalis, gulma lain, dan gulma total hingga 6 MSA serta tidak meracuni tanaman padi sawah. Seluruh dosis herbisida campuran menunjukkan pengaruh nyata terhadap tinggi tanaman pada 3 MSA, jumlah anakan pada 3 MSA dan 6 MSA, jumlah malai per rumpun, dan berat gabah kering giling sedangkan tinggi tanaman pada 6 MSA, jumlah bulir per malai, serta bobot 1000 butir tidak menunjukkan pengaruh yang nyata.

show abstract

Section: Fimbristylis Miliaceaunclassified

Pengaruh Dosis Herbisida Campuran Penoksulam Dan Pretilaklor Terhadap Gulma, Pertumbuhan Dan Hasil Padi Sawah

Sumekar¹,

Widayat²

2022

AGRIVET

View full text Add to dashboard Cite

show abstract

Evaluation of postharvest age and dormancy-breaking methods on Echinochloa crus-galli seed germination

Pisoni,

Dalazen,

Gallon

et al. 2024

Biosci. J.

View full text Add to dashboard Cite

Barnyardgrass (Echinochloa crus-galli) is one of the most troublesome weeds in irrigated rice cultivation and has increasingly impacted rainfed crops due to the emergence of herbicide-resistant populations. Understanding its germination dynamics is crucial for developing and implementing effective management strategies. Additionally, since barnyardgrass research relies on growing plants from seeds, its dormancy characteristics are of particular interest. The present study aimed to evaluate the influence of postharvest age on barnyardgrass seed germination and the effectiveness of different dormancy-breaking methods in susceptible and herbicide-resistant populations. Germination rate (G), germination speed index (GSI), and seed viability, assessed using the topographic tetrazolium test, were measured in seed lots with four different postharvest ages: two years, one year, two months, and one day postharvest. The seeds were subjected to 15 dormancy-breaking methods, including temperature variation and the use of solutions containing H2SO4, KNO3, and GA3. Seeds that were one or two years old showed germination rates exceeding 90%, regardless of the method used. In contrast, seeds aged two months or one day postharvest only germinated when exposed to 40°C for seven days, with G values of 25.2% and 5.9%, respectively. Both herbicide-susceptible and resistant barnyardgrass populations exhibited similar dormancy levels and responses to dormancy-breaking methods. The results indicate that newly harvested seeds have high dormancy levels, and specific methods are only partially effective in overcoming barnyardgrass seed dormancy.

show abstract

Environmental conditions affect herbicide selectivity on paddy rice in Southern Brazil

et al. 2023

View full text Add to dashboard Cite

Rice yield in Southern Brazil has increased linearly over the years. Early season sowing is the primary contributor to rice yield increase in Southern Brazil. However, that practice might expose rice seedlings to the risk of low-temperature stress, which can enhance herbicide injury and reduce rice yield. This research evaluated the effect of sowing dates on herbicide selectivity and agronomical rice traits. We conducted field experiments during the 2010/11 and 2011/12 growing seasons in Capão do Leão, RS, Brazil. The experimental design was a complete randomized block with a factorial arrangement. Factor A was early-sowed (in September) and late-sowed (in November); factor B was herbicide treatment (bispyribac-sodium, cyhalofop-butyl penoxsulam, metsulfuron-methyl, and nontreated check). Rice response to herbicide treatments differed between years. In 2010/11, bispyribac-sodium, penoxsulam, and metsulfuron-methyl injured rice only on early-sowed. In both years, early sowing rice promoted higher yield potential despite herbicide injury. The injury caused by the herbicides bispyribac-sodium, penoxsulam and metsulfurom-methyl was transient did not lead to yield losses. Cold temperature close the application increases the injury of ALS herbicides.

show abstract

Period prior to interference of barnyardgrass is modified due to the spraying of cyhalofop-butyl alone or associated with penoxsulam in paddy rice crop

Cited by 3 publications

References 15 publications

Pengaruh Dosis Herbisida Campuran Penoksulam Dan Pretilaklor Terhadap Gulma, Pertumbuhan Dan Hasil Padi Sawah

Pengaruh Dosis Herbisida Campuran Penoksulam Dan Pretilaklor Terhadap Gulma, Pertumbuhan Dan Hasil Padi Sawah

Evaluation of postharvest age and dormancy-breaking methods on Echinochloa crus-galli seed germination

Environmental conditions affect herbicide selectivity on paddy rice in Southern Brazil

Contact Info

Product

Resources

About