Use of Prohexadione Calcium on Grass Species Development

Abstract

-This study has aimed to evaluate the effect of prohexadione-calcium as a plant growth regulator on growth and quality of Japanese lawn grass, Broadleaf carpet grass and Bermudagrass. The treatments and doses of the prohexadionecalcium tested with two three reapplications were 27.5, 55.0, 110.0, 165.0 and 165.0 g a.i. ha -1 , and a control without application of a growth regulator. Visual injury evaluations were performed using a scale of scores and plant height and chipping dry matter were determined. We have evaluated the total thickness of the sod grass, root length and dry matter of this material at the end of the experimental period. The study was arranged in a completely randomized design with four replications. The results were submitted to analysis of variance by F-test and the averages of the treatments were compared by t test at 5% probability. The prohexadione-calcium plant growth regulator was visually selective and reduced shoot growth of the three species of grass and can thus be used in the management of lawns in gardens and sports areas. As for the production of sod grass, the prohexadione-calcium can be recommended for Japanese lawn grass and Broadleaf sod grass, especially doses 165.0+165.0 and 55.0+55.0+55.0 respectively, because they have provided a better quality sod grass. For Bermudagrass, the effect of the treatments was harmful for the quality of sod grass and is not recommended for production purposes.Keywords: PGR, sequential application, turfgrasses, Zoysia japonica, Axonopus compressus, Cynodon dactylon. , foram: 27,5, 55,0, 110,0, 165,0 RESUMO -O presente trabalho teve por objetivo avaliar o uso do prohexadionecálcio como regulador vegetal sobre o desenvolvimento e a qualidade de tapetes de gramas das espécies Esmeralda, São Carlos e Bermuda. Os tratamentos e doses de prohexadione-cálcio testados, com duas e três reaplicações

Development of lawns in response to applications of imazapic alone or combined with imazapyr

“…The use of selective herbicides that provide a regulating effect of plant growth without detriment to the visual quality of lawns can be a very interesting management tool due to the dual purpose to be attained (Maciel et al, 2011;Queiroz et al, 2017).…”

Paclobutrazol and phenoxaprope-P-ethyl potential as growth regulator in Carpet grass Plus®

“…It is a compound of triazole group and reduces plant growth by blocking the action of the enzyme ent-kaurene oxidase, which inhibits the conversion of ent-kaurene to ent-kaurenol, which prevents the formation of any type of gibberellin (Glab et al, 2020). On the other hand, for several products such as trinexapac-ethyl and prohexadione-calcium and the herbicides, imazethapyr, metsulfuron-methyl, imazaquin and glyphosate (Dinalli et al, 2015;Marchi et al, 2017;Queiroz et al, 2017;Dias et al, 2019;Gazola et al, 2019) there are reports as being used in lawns for growth control. However, for phenoxaprope-P-ethyl (post-emergent selective herbicide, which has phenoxaprope-P-ethyl as an active ingredient, which acts as an ACCase enzyme inhibitor) (Bayer, 2019) there is no use for this purpose.…”

Growth regulation and Nitrogen Uptake Inhibition of Zoysia matrella Applying Prohexadione Calcium

“…이외에도 생장조정 제인 PC를 잔디 재배에 이용하려는 연구도 이뤄졌다. 한국잔디 중 들잔디(Zoysia japonica)에 PC를 처리하였 을 때, 잎의 생장, 엽폭 및 건물중 등이 감소하여 생장 억제 효과를 나타내었고, 뿌리길이가 증가하였다 [16,17]. 크리핑 벤트그래스(Agrostis palustris)에 PC를 처리하였을 때 잔 디 품질의 변화 및 약해는 발생하지 않으며, 초장의 신장이 나 예지물량 등이 억제되었고 [18], 바이아 그래스(Paspalu notatum)는 지상부의 신장 억제 및 생육 억제 효과를 나타 내며 [19], 이는 TE와 유사한 특성을 보였다 [18][19].…”

“…크리핑 벤트그래스(Agrostis palustris)에 PC를 처리하였을 때 잔 디 품질의 변화 및 약해는 발생하지 않으며, 초장의 신장이 나 예지물량 등이 억제되었고 [18], 바이아 그래스(Paspalu notatum)는 지상부의 신장 억제 및 생육 억제 효과를 나타 내며 [19], 이는 TE와 유사한 특성을 보였다 [18][19]. 잔디 관 리 시 PC의 사용량 및 사용주기 등은 잔디 종류에 따라 차이 를 나타낸다 [9,17].…”