Thidiazuron aumenta a produtividade em arroz de terras altas1

Alves, Cleiton José; Arf, Orivaldo; Garcia, Nayara Fernanda Siviero; Galindo, Fernando Shintate; Galassi, Arthur Dias

doi:10.1590/1983-40632015v4536754

Cited by 4 publications

(12 citation statements)

References 11 publications

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“…With regard to the amount of panicles m -2 , this variable was not affected either by the application of TDZ at a fixed dose nor by the doses of ethyl-trinexapac applied. Alves et al (2015), Garé et al (2017) and Buzo et al (2018) did not observe significant effects of the application of thidiazuron at crop tillering when working with the cultivars BRS Esmeralda, IAC 202 and ANa 5015, which corroborates the findings of this work.…”

Section: Resultssupporting

confidence: 89%

“…Moreover, the work by Zulkarnain et al (2013) reported the occurrence of an increase in the number of tillers and panicles in rice plants in a saturated soil in function of the application of cytokinin. Such information would contradict the results obtained in this work, which, in turn, corroborate those observed by Alves et al (2015), Garé et al (2017), and Buzo et al (2018). However, Alves et al (2015) state that it is possible that such application did not affect the number of panicles m -2 because it was made after defining the number of buds that would originate tillers in the rice plant.…”

Section: Resultssupporting

confidence: 49%

“…Plant height and lodging were not affected by the application of thidiazuron at a fixed dose of 1.0 g ha -1 (Table 1). In the same way, the application of this same plant regulator by Alves et al (2015) in two rice cultivars (BRS Esmeralda and IAC 202) also did not affect plant height regardless of the time of application and the dose of TDZ used. Dario et al (2004) obtained similar results by applying a phytoregulator containing auxin, cytokinin and gibberellin in rice in a flood irrigation system; plant height was not affected.…”

Section: Resultsmentioning

confidence: 75%

“…Recently, it has been found that the application of thidiazuron (TDZ) in the culture may be a possibility for obtaining this increase in grain yield. Alves et al (2015) observed a 23.5% increase in yield of the BRS Esmeralda cultivar using 0.9 g ha -1 of the product, due to the higher number of spikelets per panicle, higher fertility of spikelets and greater mass of 100 grains caused by the TDZ application.…”

Section: Introductionmentioning

confidence: 93%

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Thidiazuron and Ethyl-trinexapac Affect Upland Rice Irrigated by Sprinkler Irrigation

Buzo¹,

Arf²,

Garé³

et al. 2018

JAS

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Rice is a prominent crop in Brazil. Its cultivation predominates in flooded areas in the South region of the country. However, the upland rice grown in the Midwest Region is a viable option for a sustainable expansion in the country. It still results in a grain yield lower than that of flooded cultivation, and there are constant problems with crop lodging, especially in areas using sprinkler irrigation. Thus, new ways to increase grain yield and minimize upland rice lodging are critical. The objective of this study is to verify the effects of thidiazuron and ethyl-trinexapac on the rice culture and verify whether the simultaneous use of both results in a beneficial interaction. The work was carried out in Selvíria, MS, using the cultivar BRS Esmeralda in the agricultural years 2015/16 and 2017/18. The experimental design was randomized blocks in a 2 × 4 factorial design with four replications. The treatments were combinations of application of the plant regulator thidiazuron at a fixed dose of 1.0 g ha-1 (presence or absence) and four doses of the growth regulator ethyl-trinexapac (0, 50, 100 and 150 g ha-1). Thidiazuron did not affect grains yield. Ethyl-trinexapac reduced plant height and eliminated lodging. The simultaneous use of both regulators did not affect the rice culture regarding the analyzed variables.

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 49%

Section: Resultsmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 93%

See 2 more Smart Citations

Thidiazuron and Ethyl-trinexapac Affect Upland Rice Irrigated by Sprinkler Irrigation

Buzo¹,

Arf²,

Garé³

et al. 2018

JAS

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“…Although the authors did not evaluate plant lodging, this could have been the probable cause for the low grain yield observed for the Caiapó cultivar, which was 7 cm taller than the cultivar BRS Primavera. According to Alves et al (2015), growth regulator studies are conducted on rice cultivation aiming to decrease plant height, and consequently lodging, obtaining a better use of grain yield. In 2010/11, the cultivar IAC 202 had the highest grain yield (3,310 kg ha -1…”

Section: Spikelets Fertility Weight Of 100 Grains and Productivity Omentioning

confidence: 99%

Combination of mineral and organic fertilizers of slaughterhouse-waste products for cultivation of upland rice cultivars

Portugal¹,

Arf²,

Rodrigues³

et al. 2018

Aust J Crop Sci

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Due to the expansion of the slaughterhouses sector, there is huge availability of waste from agricultural products. These waste products may be used as alternative for the production of organic fertilizers. Fertilizer efficiency depends on the type of rice cultivar. Thus, traditional, intermediate and modern plant types may respond differently to the combined use of mineral and organic fertilizers. The objective of this study is to evaluate the effects of different combinations of mineral and organic fertilizers based on slaughterhouse waste on the development, productivity and industrial quality of upland rice cultivars. The soil of the the experimental area was a typical clayey dystroferric Red Latosol and the climate of the region is Aw: humid tropical, rainy in the summer and dry in the winter according to the Koppen classification. The experimental design was randomized blocks arranged in a 3 x 6 factorial design. We evaluated three different types of rice cultivars (Caiapó, traditional type; BRS Primavera, intermediate type; and IAC 202, modern type) and levels of combinations of mineral and organic fertilizers (100% mineral, 80% mineral + 20% organic, 60% mineral + 40% organic, 40% mineral + 60% organic, 20% mineral + 80% organic, 100% organic). The cultivar IAC 202 presented a productive potential higher than the cultivars Caiapó and BRS Primavera. The 60% mineral + 40% organic and 40% mineral + 60% organic fertilizer combinations produced more yield in comparison with the 100% organic fertilizer. The cultivar Caiapó showed the highest grain quality. Organic fertilizer based on slaughterhouse waste can be used for upland rice farming.

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INFLUÊNCIA DO THIDIAZURON E DA INOCULAÇÃO COM Azospirillum brasilense NO CRESCIMENTO E PRODUTIVIDADE DO ARROZ DE TERRAS ALTAS

Garé

Buzo²,

Arf³

et al. 2017

Revista Brasileira De Engenharia De Biossistemas

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A inoculação com bactérias do gênero Azospirillum pode contribuir com o fornecimento de nitrogênio (N) e com o crescimento das plantas, pois esses microrganismos são também promotores de crescimento. Por outro lado a aplicação nas doses e épocas adequadas do regulador vegetal de efeito citocinínico thidiazuron (TDZ) pode vir a beneficiar a produtividade de grãos. Dessa maneira, o objetivo do trabalho foi avaliar o efeito de doses de TDZ sobre a produtividade do arroz, na presença e ausência da inoculação foliar com Azospirillum brasilense. Foi utilizada a cultivar ANa 5015, no delineamento experimental de blocos casualizados em esquema fatorial 4 x 2, sendo quatro doses de TDZ (0,0; 0,5; 1,0 e 1,5g ha -1 ) aplicadas por ocasião do perfilhamento, 30 DAE, e da aplicação de Azospirillum brasilense (presença ou ausência) em dose fixa aos 20 DAE. Verificou-se que a cultivar ANa 5015 não se mostrou responsiva para a inoculação foliar com Azospirillum brasilense na dose de 200 mL ha -1 . Para as doses de TDZ aplicadas via foliar, houve uma variação significativa na altura de plantas, cuja dose de 0,41 g ha -1 resultou na altura máxima de 1,11 m. Não houve efeito das doses de TDZ na produtividade, massa de 100 grãos, número de panículas por m², grãos por panícula e massa hectolítrica. Palavras-chave: bactérias diazotróficas, irrigação por aspersão, Oryza sativa L., thidiazuron INFLUENCE OF THIDIAZURON AND INOCULATION WITH Azospirillum brasilense IN THE GROWTH AND PRODUCTIVITY OF HIGHLAND RICE ABSTRACTInoculation with bacteria of Azospirillum genus may contribute with the nitrogen (N) supply and the plant growth, since these microorganisms are also growth promoters. On the other hand the application in the appropriate doses and times of the plant regulator of cytokinin effect thidiazuron (TDZ) may benefit grain yield. Thus, the goal of this work was to evaluate the TDZ dose effect on rice yield, in the presence and absence of leaf inoculation with Azospirillum brasilense. The cultivar ANa 5015 was used in the experimental design of randomized blocks in a 4 x 2 factorial scheme, four TDZ (0,0; 0,5; 1,0 and 1,5g ha -1 ) doses applied on the occasion of tillering , 30 DAE, and the application of Azospirillum brasilense (presence or absence) at a fixed dose at 20 DAE. It was verified that the cultivar ANa 5015 was not responsive to the leaf inoculation with Azospirillum brasilense at the dose of 200 mL ha -1 . For TDZ doses applied via leaf, there was a significant variation in plant height, whose *

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Thidiazuron aumenta a produtividade em arroz de terras altas1

Cited by 4 publications

References 11 publications

Thidiazuron and Ethyl-trinexapac Affect Upland Rice Irrigated by Sprinkler Irrigation

Thidiazuron and Ethyl-trinexapac Affect Upland Rice Irrigated by Sprinkler Irrigation

Combination of mineral and organic fertilizers of slaughterhouse-waste products for cultivation of upland rice cultivars

INFLUÊNCIA DO THIDIAZURON E DA INOCULAÇÃO COM Azospirillum brasilense NO CRESCIMENTO E PRODUTIVIDADE DO ARROZ DE TERRAS ALTAS

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