干旱区生态环境知识资源中心(Arid): Paclobutrazol in the microbiota of a soil cultivated with 'Palmer' mango tree

Arid

DOI	10.17660/ActaHortic.2019.1244.23
	Paclobutrazol in the microbiota of a soil cultivated with 'Palmer' mango tree
	Oliveira, M. B.; Sales, R. P.; Xavier, A. A.; Ribeiro, R. C. F.; Kondo, M. K.; Megda, M. X., V; Pereira, M. C. T.; Santos, I. P.; Ferreira, J. D.; Martins, R. S.; Mouco, M. A. C.
通讯作者	Sales, RP (corresponding author), Mangaclara Consultoria, Janauba, Brazil. ; Sales, RP (corresponding author), Univ Estadual Montes Claros, Janauba, Brazil.
会议名称	12th International Mango Symposium
会议日期	JUL 10-16, 2017
会议地点	Baise, PEOPLES R CHINA
英文摘要	The soil and climatic conditions of the Brazilian semi-arid region allowed the expansion of the mango crops to serve the internal and external markets, through technologies for managing the production season with the use of plant regulators. This study evaluated the effect of different levels of the plant regulator paclobutrazol (PBZ) on the microbial activity of an Argisol cultivated with 'Palmer' mango, in the semi-arid region of northern Minas Gerais. The work was set up in a randomized block design with five levels of PBZ applied to the soil, equivalent to 0.75, 1.50, 2.25, 3.00 and 3.75 g of active ingredient per linear meter of canopy, in addition to one control, in four replications. For the evaluations, a composite sample formed by 15 sub samples of soil collected between 0 and 0.1 m depth and at 0.3 m around the trunk of the plant was used. PBZ was applied and soil respiration (evolution of C-CO2) was evaluated every seven days. At the end, carbon in the soil microbial biomass (MBC), soil microbial metabolic quotient (qCO(2)), and percentage of fungi or bacteria were determined by plaque counting. PBZ promoted a negative impact on the soil microbiota, increasing the damage with PBZ levels, indicated by the lower values of microbial respiration and MBC. PBZ levels greater than 0.75 g a.i. per linear meter of canopy promoted a marked reduction in MBC and higher levels of qCO(2), an ecological indicator of microbiota stress.
英文关键词	microbial biomass microbial metabolic quotient microbial respiration Argisol plant growth regulators
来源出版物	XII INTERNATIONAL MANGO SYMPOSIUM
ISSN	0567-7572
EISSN	2406-6168
出版年	2019
卷号	1244
页码	151-157
ISBN	978-94-62612-41-9
出版者	INT SOC HORTICULTURAL SCIENCE
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000706847200023
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; PLANT-GROWTH ; DEGRADATION
WOS类目	Agronomy ; Plant Sciences ; Horticulture
WOS研究方向	Agriculture ; Plant Sciences
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370274
作者单位	[Oliveira, M. B.; Sales, R. P.; Santos, I. P.] Mangaclara Consultoria, Janauba, Brazil; [Oliveira, M. B.; Sales, R. P.; Xavier, A. A.; Ribeiro, R. C. F.; Kondo, M. K.; Megda, M. X., V; Pereira, M. C. T.] Univ Estadual Montes Claros, Janauba, Brazil; [Ferreira, J. D.] Stoller, Campinas, SP, Brazil; [Martins, R. S.] Produt Consultoria, Juazeiro, Brazil; [Mouco, M. A. C.] Embrapa Semiarido, Petrolina, Brazil
推荐引用方式 GB/T 7714	Oliveira, M. B.,Sales, R. P.,Xavier, A. A.,et al. Paclobutrazol in the microbiota of a soil cultivated with 'Palmer' mango tree[C]:INT SOC HORTICULTURAL SCIENCE,2019:151-157.