干旱区生态环境知识资源中心(Arid): Morphophysiology and production components of mini-watermelon under water replenishment and nitrogen fertilization levels

Arid

DOI	10.5433/1679-0359.2023v44n4p1235
	Morphophysiology and production components of mini-watermelon under water replenishment and nitrogen fertilization levels
	Dantas, Maila Vieira; de Lacerda, Cassiano Nogueira; Roque, Iara Almeida; da Silva, Francisco Alves; de Lima, Geovani Soares; Garofalo Chaves, Lucia Helena; dos Anjos Soares, Lauriane Almeida; Gheyi, Hans Raj; Nobrega, Jackson Silva; Silva, Luderlandio de Andrade
通讯作者	de Lima, GS
来源期刊	SEMINA-CIENCIAS AGRARIAS
ISSN	1676-546X
EISSN	1679-0359
出版年	2023
卷号	44 期号:4 页码:1235-1264
英文摘要	In the semi-arid region of Northeast Brazil, the combination of irregular rainfall and high evapotranspiration creates a consistent water deficit in plants for most months of the year. This factor prominently limits the vegetable production potential. Consequently, finding effective strategies to alleviate the adverse impacts of water deficit on plants becomes imperative to ensure successful cultivation under irrigated conditions. Within this framework, the objective of this study was to evaluate the influence of nitrogen fertilization on both the morphophysiology and production components of 'Sugar Baby' mini-watermelon plants. The experiment was carried out at the 'Rolando Rivas Castellon' experimental farm in Sao Domingos, PB, Brazil, within controlled greenhouse conditions. A randomized block design was employed using a 4 x 4 factorial arrangement consisting of four distinct water replenishment levels (50, 75, 100 [control], and 125% of the crop's actual evapotranspiration [ETr]) and four nitrogen application rates (50, 75, 100, and 125% of the recommended rate). Each treatment combination was replicated three times, leading to a total of 48 plants being studied. Gas exchange parameters, content of photosynthetic pigments, relative water content, and electrolyte leakage were assessed. Furthermore, growth metrics, biomass production, production components, and the postharvest quality of 'Sugar Baby' mini-watermelon fruits were also evaluated. Subjecting the plants to deficit irrigation with 50% ETr reduced gas exchange, synthesis of photosynthetic pigments, growth, and fruit quality of 'Sugar Baby' mini-watermelon, irrespective of the nitrogen rate. On the other hand, the irrigation amount of 125% ETr coupled with nitrogen fertilization at 100% of the recommended rate provided higher values of total chlorophyll content, number of leaves, dry mass of root, stem, shoot, and total plant, and the pH value of 'Sugar Baby' mini-watermelon.
英文关键词	Citrullus lanatus Water deficit Nitrogen
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001067610600001
WOS关键词	SALINE WATER ; PHOTOSYNTHETIC PIGMENTS ; GAS EXCHANGES ; QUANTUM YIELD ; IRRIGATION ; QUALITY ; STRATEGIES ; RADIATION ; BIOMASS ; STRESS
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/2XILL650/398625
推荐引用方式 GB/T 7714	Dantas, Maila Vieira,de Lacerda, Cassiano Nogueira,Roque, Iara Almeida,et al. Morphophysiology and production components of mini-watermelon under water replenishment and nitrogen fertilization levels[J],2023,44(4):1235-1264.
APA	Dantas, Maila Vieira.,de Lacerda, Cassiano Nogueira.,Roque, Iara Almeida.,da Silva, Francisco Alves.,de Lima, Geovani Soares.,...&Silva, Luderlandio de Andrade.(2023).Morphophysiology and production components of mini-watermelon under water replenishment and nitrogen fertilization levels.SEMINA-CIENCIAS AGRARIAS,44(4),1235-1264.
MLA	Dantas, Maila Vieira,et al."Morphophysiology and production components of mini-watermelon under water replenishment and nitrogen fertilization levels".SEMINA-CIENCIAS AGRARIAS 44.4(2023):1235-1264.