Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates

Optimizing nitrogen (N) input rates for vegetable production is crucial in Florida to reducing production costs and enhancing environmental sustainability. Asian vegetables emerging and expanding in Florida not only increase profit for growers, but also enhance food diversity for consumers. The obje...

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Autores principales:	Yanlin Wang, Gabriel Maltais-Landry, Bala Rathinasabapathi, Steven A. Sargent, Guodong Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ammonium nitrate high tunnel <i>Luffa acutangular</i> nodule source partition <i>Vigna unguiculata</i> ssp. <i>sesquipedalis</i> Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/9852a155525e4313860ef3df7337f3e5
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spelling	oai:doaj.org-article:9852a155525e4313860ef3df7337f3e52021-11-25T16:00:37ZGrowth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates10.3390/agriculture111111452077-0472https://doaj.org/article/9852a155525e4313860ef3df7337f3e52021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0472/11/11/1145https://doaj.org/toc/2077-0472Optimizing nitrogen (N) input rates for vegetable production is crucial in Florida to reducing production costs and enhancing environmental sustainability. Asian vegetables emerging and expanding in Florida not only increase profit for growers, but also enhance food diversity for consumers. The objective of this study was to gain a better understanding of the partitioning and usage of N and carbohydrates in two Asian vegetable crops: long bean (<i>Vigna unguiculata</i> ssp. <i>sesquipedalis</i> (L.) Verdc.) and angled luffa (<i>Luffa acutangular</i> (L.) Roxb.). Four N rates (0, 0.91, 1.36, and 1.81 g N pot<sup>−1</sup>) were compared in a high tunnel trial to understand the influence of N fertilization on the two crops. For long bean, plant biomass was highest at the highest N input, and N-fertilized plants had significantly higher leaf greenness than the control at the flower initiation and mid-reproductive stages. However, N inputs had no apparent effect on yield, nitrogen use efficiency (NUE), blade total N concentration, roots (length, volume, dry biomass, and root-to-shoot ratio), or nodules (number plant<sup>−1</sup> and biomass). For luffa, the highest N input had significantly greater total yield, fruit number, and leaf greenness at the flower initiation and mid-reproductive stages, although there was no significant difference in shoot biomass, blade total N content, or NUE among treatments. Within the range of these N rates, our results suggest that higher N inputs promoted vegetative growth of long bean, whereas reproductive growth was promoted in luffa. This study highlights differences in the sink–source relationship of N for long bean and luffa production in high tunnel, which can guide N input decisions for these two crops that are rapidly expanding in the USA.Yanlin WangGabriel Maltais-LandryBala RathinasabapathiSteven A. SargentGuodong LiuMDPI AGarticleammonium nitratehigh tunnel<i>Luffa acutangular</i>nodulesource partition<i>Vigna unguiculata</i> ssp. <i>sesquipedalis</i>Agriculture (General)S1-972ENAgriculture, Vol 11, Iss 1145, p 1145 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ammonium nitrate high tunnel <i>Luffa acutangular</i> nodule source partition <i>Vigna unguiculata</i> ssp. <i>sesquipedalis</i> Agriculture (General) S1-972
spellingShingle	ammonium nitrate high tunnel <i>Luffa acutangular</i> nodule source partition <i>Vigna unguiculata</i> ssp. <i>sesquipedalis</i> Agriculture (General) S1-972 Yanlin Wang Gabriel Maltais-Landry Bala Rathinasabapathi Steven A. Sargent Guodong Liu Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates
description	Optimizing nitrogen (N) input rates for vegetable production is crucial in Florida to reducing production costs and enhancing environmental sustainability. Asian vegetables emerging and expanding in Florida not only increase profit for growers, but also enhance food diversity for consumers. The objective of this study was to gain a better understanding of the partitioning and usage of N and carbohydrates in two Asian vegetable crops: long bean (<i>Vigna unguiculata</i> ssp. <i>sesquipedalis</i> (L.) Verdc.) and angled luffa (<i>Luffa acutangular</i> (L.) Roxb.). Four N rates (0, 0.91, 1.36, and 1.81 g N pot<sup>−1</sup>) were compared in a high tunnel trial to understand the influence of N fertilization on the two crops. For long bean, plant biomass was highest at the highest N input, and N-fertilized plants had significantly higher leaf greenness than the control at the flower initiation and mid-reproductive stages. However, N inputs had no apparent effect on yield, nitrogen use efficiency (NUE), blade total N concentration, roots (length, volume, dry biomass, and root-to-shoot ratio), or nodules (number plant<sup>−1</sup> and biomass). For luffa, the highest N input had significantly greater total yield, fruit number, and leaf greenness at the flower initiation and mid-reproductive stages, although there was no significant difference in shoot biomass, blade total N content, or NUE among treatments. Within the range of these N rates, our results suggest that higher N inputs promoted vegetative growth of long bean, whereas reproductive growth was promoted in luffa. This study highlights differences in the sink–source relationship of N for long bean and luffa production in high tunnel, which can guide N input decisions for these two crops that are rapidly expanding in the USA.
format	article
author	Yanlin Wang Gabriel Maltais-Landry Bala Rathinasabapathi Steven A. Sargent Guodong Liu
author_facet	Yanlin Wang Gabriel Maltais-Landry Bala Rathinasabapathi Steven A. Sargent Guodong Liu
author_sort	Yanlin Wang
title	Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates
title_short	Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates
title_full	Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates
title_fullStr	Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates
title_full_unstemmed	Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates
title_sort	growth and yield responses of pot-grown long bean and luffa to nitrogen rates
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9852a155525e4313860ef3df7337f3e5
work_keys_str_mv	AT yanlinwang growthandyieldresponsesofpotgrownlongbeanandluffatonitrogenrates AT gabrielmaltaislandry growthandyieldresponsesofpotgrownlongbeanandluffatonitrogenrates AT balarathinasabapathi growthandyieldresponsesofpotgrownlongbeanandluffatonitrogenrates AT stevenasargent growthandyieldresponsesofpotgrownlongbeanandluffatonitrogenrates AT guodongliu growthandyieldresponsesofpotgrownlongbeanandluffatonitrogenrates
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Growth and Yield Responses of Pot-Grown Long Bean and Luffa to Nitrogen Rates

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