Variation in growth and physiological characteristics of tomato seedlings exposed to different leds light quality | [Pakistan Journal of Botany • 2023]

Author(s):

1. HUIMIN LI: Suzhou Polytechnic Institute of Agriculture,Suzhou Jiangsu 215008,China

2. XIAOMIN LU: Anhui Science and Technology University,No.9, Donghua Road, Fengyang Country, Anhui Province, 233100,China

3. JUN CHEN: Suzhou Polytechnic Institute of Agriculture,Suzhou Jiangsu 215008,China

4. RONGRONG JIANG: Suzhou Caoyang Ecological Agriculture Development Co., Ltd,Suzhou Jiangsu 215143,

Abstract:

The present study was to evaluate variation in growth, physiological characteristics of tomato (Lycopersicon esculentum Mill.) exposed to different LEDs. Seedlings of the cultivar 'Baolai 303' were cultured under FL, B, BR1:1, R and Y LEDs, at a PPFD of 120 µ mol m-2·s-1 for 12· d-1 photoperiod for about 30 days. The fresh and dry mass, stem width, root and stem length, pigment content, sucrose, soluble sugar levels, leaf thickness, spongy tissue, palisade tissue, photosynthetic rate, and the area and frequency of stomata were higher than FL. The palisade tissue arranged compactly under BR1:1. The palisade tissue also arranged tidy under B in comparison to FL. Starch contents in leaves and stems were the highest under R. BR1:1, promoted the tomato growth, and it can use for cultivation of tomato under the controlled conditions.

Page(s): 1347-1352

DOI: 10.30848/PJB2023-4(41)

Published: Journal: Pakistan Journal of Botany, Volume: 55, Issue: 4, Year: 2023

Keywords:

Tomato , stomata , Leaf anatomy , Photosynthetic rate , LEDs , Lycopersicon esculentum Mill

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