干旱区生态环境知识资源中心(Arid): Nitrogen as a mitigator of salt stress in yellow passion fruit seedlings

Arid

DOI	10.5433/1679-0359.2019v40n2p611
	Nitrogen as a mitigator of salt stress in yellow passion fruit seedlings
	Ferreira Bezerra, Marlene Alexandrina 1; Pereira, Walter Esfrain 2,3; Coelho Bezerra, Francisco Thiago 2; Cavalcante, Lourival Ferreira 2; da Silva Medeiros, Sherly Aparecida 1
通讯作者	Ferreira Bezerra, Marlene Alexandrina
来源期刊	SEMINA-CIENCIAS AGRARIAS
ISSN	1676-546X
EISSN	1679-0359
出版年	2019
卷号	40 期号:2 页码:611-622
英文摘要	The poor chemical quality of water. especially in arid and semiarid regions, almost always precludes the practice of irrigated agriculture, thus demanding the adoption of techniques that mitigate the deleterious effects of excess salt on soil and plants. The aim of this research was to evaluate the effectiveness of nitrogen fertilization in mitigating the negative effects of excess salt in irrigation water on the growth of yellow passion fruit seedlings grown in a greenhouse in plastic tubes containing 0.65 dm(3) of substrate. The treatments were organized in randomized blocks, in accordance with a 5 x 3 factorial scheme - five electrical conductivities of irrigation water (0.3, 1.0, 2.0, 3.0, and 4.0 dS m(-1)) combined with three levels of nitrogen fertilizer (no nitrogen fertilization and 150 mg dm(-3) of N derived from either ammonium sulfate or urea). Evaluations were performed 80 days after sowing and consisted of measuring the seedling height, stem diameter, number of leaves, leaf area, leaf nitrogen content, leaf concentration of chlorophyll a and b and total chlorophyll, specific leaf area, leaf area ratio, and Dickson quality index. An increase in the electrical conductivity of irrigation water hindered the production of yellow passion fruit seedlings. Nitrogen fertilization, with urea or ammonium sulfate, mitigated the effects of irrigation water salinity and favored the growth and quality of yellow passion fruit seedlings. Yellow passion fruit seedlings with a minimum quality standard (DQI) can be produced with irrigation water with salinity of 1.8 dS m(-1), which means they can be considered as moderately sensitive. The higher quality provided by nitrogen to the yellow passion fruit seedlings made them more tolerant to salinity, allowing the use of water with salinity of 2.1 and 2.5 dS m(-1) under fertilization with ammonium sulfate and urea, respectively.
英文关键词	Nitrogen sources Passiflora edulis Sims Water salinity
类型	Article
语种	英语
国家	Brazil
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000464920500008
WOS关键词	SALINITY ; NUTRITION ; GROWTH ; PLANTS ; ACCUMULATION ; MECHANISMS ; TOLERANCE ; AMMONIUM ; SOIL
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218834
作者单位	1.Univ Fed Paraiba, UFPB, Programa Posgrad Agron, Areia, PB, Brazil; 2.UFPB, Programa Posgrad Agron, Areia, PB, Brazil; 3.UFPB, Programa Posgrad Ciencia Solo, Areia, PB, Brazil
推荐引用方式 GB/T 7714	Ferreira Bezerra, Marlene Alexandrina,Pereira, Walter Esfrain,Coelho Bezerra, Francisco Thiago,et al. Nitrogen as a mitigator of salt stress in yellow passion fruit seedlings[J],2019,40(2):611-622.
APA	Ferreira Bezerra, Marlene Alexandrina,Pereira, Walter Esfrain,Coelho Bezerra, Francisco Thiago,Cavalcante, Lourival Ferreira,&da Silva Medeiros, Sherly Aparecida.(2019).Nitrogen as a mitigator of salt stress in yellow passion fruit seedlings.SEMINA-CIENCIAS AGRARIAS,40(2),611-622.
MLA	Ferreira Bezerra, Marlene Alexandrina,et al."Nitrogen as a mitigator of salt stress in yellow passion fruit seedlings".SEMINA-CIENCIAS AGRARIAS 40.2(2019):611-622.