Effects of Drought Stress on Photosynthetic and Physiological Parameters of Tomato

Drought has become an important factor limiting crop yields in China. As an important greenhouse horticultural crop in China, the research of tomato (Solanum lycopersicum L. cv. Jinpeng No.10) is of great theoretical and practical significance. In the study, four different relative soil moisture contents (74% to 80%, 55% to 61%, 47% to 52%, and 25% to 30%) were used to induce drought stress. We investigated changes in photosynthetic gas exchange, chlorophyll fluorescence, and other related physiological parameters in response to different relative soil moisture contents. Drought inhibited the photosynthesis of tomato significantly, as shown by a clear decline in the net photosynthetic rate. Our results indicated stomatal limitation and nonstomatal limitation were responsible for the photosynthesis reduction.

Download Full-text

Effects of drought stress on photosynthetic gas exchange, chlorophyll fluorescence and stem diameter of soybean plants

Biologia Plantarum ◽

10.1007/s10535-005-0089-3 ◽

2006 ◽

Vol 50 (1) ◽

pp. 138-141 ◽

Cited By ~ 89

Author(s):

Y. Ohashi ◽

N. Nakayama ◽

H. Saneoka ◽

K. Fujita

Keyword(s):

Chlorophyll Fluorescence ◽

Drought Stress ◽

Gas Exchange ◽

Stem Diameter ◽

Photosynthetic Gas Exchange ◽

Soybean Plants ◽

Effects Of Drought

Download Full-text

Effects of drought stress on the photosynthetic physiological parameters of Populus × euramericana “Neva”

Journal of Forestry Research ◽

10.1007/s11676-018-0667-9 ◽

2018 ◽

Vol 30 (2) ◽

pp. 409-416 ◽

Cited By ~ 7

Author(s):

Guoting Liang ◽

Jianwen Bu ◽

Shuyong Zhang ◽

Guo Jing ◽

Guangcan Zhang ◽

...

Keyword(s):

Drought Stress ◽

Physiological Parameters ◽

Populus Euramericana ◽

Effects Of Drought

Download Full-text

Effects of Drought Stress Induced by Polyethylene Glycol on Pigment Content and Photosynthetic Gas Exchange of Pistacia Khinjuk and P. Mutica

Photosynthetica ◽

10.1023/a:1010946209484 ◽

2000 ◽

Vol 38 (3) ◽

pp. 443-447 ◽

Cited By ~ 26

Author(s):

A. Ranjbarfordoei ◽

R. Samson ◽

P. Damme ◽

R. Lemeur

Keyword(s):

Polyethylene Glycol ◽

Drought Stress ◽

Gas Exchange ◽

Pigment Content ◽

Photosynthetic Gas Exchange ◽

Pistacia Khinjuk ◽

Effects Of Drought

Download Full-text

SALINITY AND DRAINAGE IN A BROWN CHERNOZEM IRRIGATED AT DIFFERENT MINIMUM MOISTURE CONTENTS

Canadian Journal of Soil Science ◽

10.4141/cjss72-048 ◽

1972 ◽

Vol 52 (3) ◽

pp. 359-364

Author(s):

K. K. KROGMAN ◽

E. H. HOBBS

Keyword(s):

Soil Moisture ◽

Crop Rotation ◽

Soil Salinity ◽

Crop Yields ◽

Low Level ◽

Moisture Contents ◽

Irrigation Regimes

The salinity of a Brown Chernozem under four irrigation regimes was measured at the beginning and end of each of two cycles of a 4-yr crop rotation. Irrigation reduced soil salinity during the first cycle and maintained it at the reduced level during the second cycle. Drainage in 4 yr, calculated on the basis of salt balances, increased proportionately to irrigation plus rainfall. Where only enough water was applied to maximize crop yields, that is, where soil moisture was maintained within the upper half of the available range, about 95% of the irrigation plus rainfall was utilized by the crops through evapotranspiration. Under this regime, maximum crop yields and an adequately low level of soil salinity were maintained.

Download Full-text

Alleviation of drought stress by silicon supplementation in pistachio (Pistacia vera L.) plants

Folia Horticulturae ◽

10.2478/fhort-2013-0003 ◽

2013 ◽

Vol 25 (1) ◽

pp. 21-29 ◽

Cited By ~ 28

Author(s):

Ghader Habibi ◽

Roghieh Hajiboland

Keyword(s):

Drought Stress ◽

Photochemical Efficiency ◽

Dry Weight ◽

Pistacia Vera ◽

Antioxidant Defence ◽

Photosynthetic Gas Exchange ◽

Relative Water ◽

Effects Of Drought ◽

Net Assimilation ◽

Quantum Yield Of Psii

ABSTRACT The effect of silicon (Si) supplementation (0.35 g Na2SiO3 kg-1 soil, 2.73 mmol Si kg-1 soil) was studied in drought-stressed pistachio (Pistacia vera L. ‘Ahmadaghaii’) plants under field conditions. Silicon treatment significantly increased plant dry weight and relative water content under drought stress. The application of Si for drought-stressed plants improved the maximum quantum yield of PSII. A reduction in the net assimilation rate due to drought stress was alleviated by Si application, accompanied by an increase in stomatal conductance. Silicon treatment resulted in higher catalase and superoxide dismutase activities and lower lipid peroxidation in the leaves of drought-stressed plants. The results suggest that supplementation of water-deficient pistachio plants with Si alleviates the adverse effects of drought due to its enhancement of photochemical efficiency and photosynthetic gas exchange, as well as an activation of the antioxidant defence capacity in this species.

Download Full-text

Poor seed quality, reduced germination, and decreased seedling vigor in soybean is linked to exposure of the maternal lines to drought stress

10.1101/590059 ◽

2019 ◽

Author(s):

Chathurika Wijewardana ◽

K. Raja Reddy ◽

L. Jason Krutz ◽

Wei Gao ◽

Nacer Bellaloui

Keyword(s):

Soil Moisture ◽

Drought Stress ◽

Seed Germination ◽

Seed Quality ◽

Germination Rate ◽

Moisture Stress ◽

Seedling Vigor ◽

Soil Moisture Stress ◽

Effects Of Drought ◽

F1 Generation

AbstractEffects of environmental stressors on the parent may be transmitted to the F1 generation of plants that support global food, oil, and energy production for humans and animals. This study was conducted to determine if the effects of drought stress on parental soybean plants are transmitted to the F1 generation. The germination and seedling vigor of F1 soybean whose maternal parents, Asgrow AG5332 and Progeny P5333RY, were exposed to soil moisture stress, that is, 100, 80, 60, 40, and 20% replacement of evapotranspiration (ET) during reproductive growth, were evaluated under controlled conditions. Pooled over cultivars, effects of soil moisture stress on the parents caused a reduction in the seed germination rate, maximum seed germination, and overall seedling performance in the F1 generation. The effect of soil moisture stress on the parent induced an irreversible change in the seed quality in the F1 generation and the effects on seed quality in the F1 generation were exasperated when exposed to increasing levels of drought stress. Results indicate that seed weight and storage reserve are key factors influencing germination traits and seedling growth. Our data confirm that the effects of drought stress on soybean are transferable, causing reduced germination, seedling vigor, and seed quality in the F1 generation.

Download Full-text

Tolerance of lowbush blueberries (Vaccinium angustifolium Ait.) to drought stress. I. Soil water and yield component analysis

Canadian Journal of Plant Science ◽

10.4141/p03-027 ◽

2005 ◽

Vol 85 (4) ◽

pp. 911-917 ◽

Cited By ~ 4

Author(s):

V. M. Glass ◽

D. C. Percival ◽

J. T.A. Proctor

Keyword(s):

Soil Moisture ◽

Drought Stress ◽

Component Analysis ◽

Yield Component ◽

Vaccinium Angustifolium ◽

Node Number ◽

Zone Length ◽

Lowbush Blueberry ◽

Effects Of Drought ◽

Wild Blueberry

A 2-yr field study examining the effects of drought conditions on the vegetative and reproductive components of the lowbush blueberry (Vaccinium angustifolium Ait.) was completed at the Nova Scotia Wild Blueberry Institute (NSWBI), Debert, NS, in 1998 and 1999. Drought and irrigation treatments were applied over 2 yr in either or both the vegetative and cropping years of production. In general, during the 2-yr study of the vegetative stage, soil moisture levels in the uppermost 0- to 15-cm depth were low (5 to 22%) due to lack of rainfall and increased plant demand. Although berry weight was not affected by drought treatments, berry number was > 50% higher in response to irrigation in both the vegetative and cropping years. From yield component analysis, it was concluded that node number increased at the expense of floral zone length in response to drought-stress. It appeared that the wild blueberry has adapted to partition its resources into vegetative growth under soil moisture limiting conditions, and into reproductive growth when moisture levels are sufficient. Key words: Yield, path analysis, irrigation, drought

Download Full-text