Growth and physiology of lettuce (Lactuca sativa L.) cultivars under different growing systems

Thomas, Tinu; Biradar, M. S.; Chimmad, V.P.; Janagoudar, B. S.

doi:10.1007/s40502-021-00591-3

Cited by 6 publications

(4 citation statements)

References 20 publications

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“…These increments reflect better stomatal performance, depending on the conditions in which the plants are found (Souza et al, 2010). In this sense, the constant presence of humidity in the system allows high rates of transpiration of plants, an essential factor for the capture of atmospheric CO 2 (Ancu et al, 2014;Thomas et al, 2021) and which started to benefit from the application of vitamins.…”

Section: Resultsmentioning

confidence: 99%

Do vitamins affect the morphophysiology of lettuce in a hydroponic system?

Vendruscolo,

Seron,

Leonel

et al. 2023

Rev. bras. eng. agríc. ambient.

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Technologies once applied exclusively in conventional systems have maximized gains in hydroponic systems; however, they still need information for proper use. Thus, the study aimed to evaluate the effect of foliar application of thiamine and niacin on growth and gas exchange activities in two lettuce cultivars in an ebb and flow hydroponic system. The completely randomized design (CRD) was used with four treatments and eight replications. The treatments were as follows: T1 - control, T2 - thiamine at a concentration of 200 mg L-1, T3 - niacin at 200 mg L-1, and T4 - thiamine and niacin combined at 100 mg L-1 of each vitamin. Each experimental plot consisted of a lettuce plant. The combined application of thiamine and niacin stood out, increasing the activity of gas exchange of lettuce plants and increasing by about 30% the fresh mass, concerning the control, for both cultivars, followed by the isolated application of niacin. For thiamine, the application alone did not result in significant changes. The vitamins affect the morphophysiology of lettuce, where the use of niacin has the potential for use in hydroponic production systems. Its combined use with thiamine increases this potential, with a synergistic effect between the compounds being verified.

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Section: Resultsmentioning

confidence: 99%

Do vitamins affect the morphophysiology of lettuce in a hydroponic system?

Vendruscolo,

Seron,

Leonel

et al. 2023

Rev. bras. eng. agríc. ambient.

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“…Pada saat proses transpirasi berlangsung, uap air yang keluar melalui stomata akan menciptakan tekanan negatif atau gaya hisap, dimana gaya tersebut membantu jaringan akar (xilem) menarik air bersama nutrisi yang terdapat pada media tanam ke bagian atas tanaman. Tingginya laju transpirasi tentunya membuat penyerapan nutrisi menjadi lebih optimal yang berdampak positif pada pertumbuhan tanaman (Thomas et al, 2021). Alasan kenapa siklus fotoperiode yang lebih pendek pada perlakuan 3 menghasilkan pertumbuhan selada romaine yang tidak sebagus perlakuan 1 dan 2 adalah karena terjadi lag photosynthesis atau periode tunda proses fotosintesis akibat perubahan kondisi cahaya (Hang et al, 2019).…”

Section: A Pertumbuhan Dan Berat Basah Selada Romaineunclassified

EFEK SIKLUS FOTOPERIODE TERHADAP PERTUMBUHAN DAN BERAT BASAH SELADA ROMAINE (Lactuca Sativa Var. Longifolia) PADA SISTEM PFAL (PLANT FACTORY WITH ARTIFICIAL LIGHTS)

Rozaaq,

Putri,

Yanti

2024

j. teknol. pertan. n.a.

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Plant factory with Artificial Lights (PFAL) merupakan tipe plant factory yang menggunakan LED (Light Emitting Diodes) sebagai sumber utama cahaya untuk mendukung pertumbuhan tanaman. Penelitian ini bertujuan untuk menganalisis pengaruh siklus fotoperiode terhadap pertumbuhan selada romaine yang ditanam pada sistem PFAL. Siklus fotoperiode yang diberikan pada penelitian ini perlakuan 1 (1 siklus, 14 jam terang/10 jam gelap), perlakuan 2 (2 siklus, 7 jam terang/5 jam gelap x 2) dan perlakuan 3 (4 siklus, 3,5 jam terang/2,5 jam gelap x 4). Siklus fotoperiode mempengaruhi pertumbuhan dan berat basah selada romaine, dimana perlakuan 1 dengan siklus fotoperiode yang lebih panjang memberikan hasil terbaik dengan rata-rata tinggi, panjang daun, lebar daun, jumlah daun dan berat basah masing-masing yaitu 21,46 cm, 17,69 cm, 9,72 cm, 12,73 helai dan 52,49 gram. Perlakuan 1 juga memberikan hasil rasio berat basah terhadap konsumsi energi listrik yang paling tinggi yaitu sebesar 28,05 gr/kWh sehingga perlakuan 1 lebih efisien dalam menghasilkan berat basah selada romaine per jumlah energi listrik yang digunakan dibandingkan dengan perlakuan 2 dan 3. Kata kunci -selada romaine; siklus fotoperiode; sistem PFAL

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“…Under normal cultivation conditions, crop development is invariably influenced by the lowest water and nutrient supply along with other soil and climate restrictions (Fuentes & King, 1989). However, few studies have focused on plant physiological aspects with respect to distinct cultivation systems (Rosa et al, 2014;Souza et al, 2019;Thomas, Biradar, Chimmad, & Janagoudar, 2021).…”

Section: Introductionmentioning

confidence: 99%

Physiological alterations in ‘Rubinela’ lettuce (Lactuca sativa L.) cultivated in conventional and hydroponic systems

Zappelini,

Pescador,

Girardello

et al. 2023

Acta Sci. Agron.

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Lettuce (Lactuca sativa L.) is the most consumed leafy vegetable in Brazil. It is cultivated using at least four distinct systems, the most common of which are conventional and hydroponic systems. These systems provide different cultivation conditions for plants, causing physiological changes that are important for commercial production, such as nutrient uptake and biomass accumulation. However, only a few studies have compared the physiological aspects of these two cultivation systems. The objective of this study was to evaluate the physiological behavior of ‘Rubinela’ lettuce plants grown in hydroponic and conventional pot systems, by comparing dry mass (DM) and fresh mass (FM) production, number of leaves (NF), stomatal density, and contents of chlorophyll, carotenoids, anthocyanin, sugars, and starch. Plants cultivated in hydroponic systems presented significant differences in chlorophyll content, producing more biomass than plants cultivated in conventional pot systems, probably because of better nutritional conditions, primarily with respect to macronutrients, provided by the nutrient solution of the hydroponic system. The lower water availability encountered by plants cultivated in conventional pot systems influenced the increased sugar and starch concentrations, as well as the anthocyanin content, which may be a strategy to mitigate the possible damage caused by hydric stress conditions.

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Growth and physiology of lettuce (Lactuca sativa L.) cultivars under different growing systems

Cited by 6 publications

References 20 publications

Do vitamins affect the morphophysiology of lettuce in a hydroponic system?

Do vitamins affect the morphophysiology of lettuce in a hydroponic system?

EFEK SIKLUS FOTOPERIODE TERHADAP PERTUMBUHAN DAN BERAT BASAH SELADA ROMAINE (Lactuca Sativa Var. Longifolia) PADA SISTEM PFAL (PLANT FACTORY WITH ARTIFICIAL LIGHTS)

Physiological alterations in ‘Rubinela’ lettuce (Lactuca sativa L.) cultivated in conventional and hydroponic systems

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