Sample Record for Search:
Plant Science & Production
Screening for drought tolerance: evaluation of seed germination and seedling growth for
drought resistance in legume plants.
Grzesiak, S.; Filek, W.; Skrudlik, G.; Niziol, B.
Department of Plant Physiology, Polish Academy of Sciences, Podluzna 3, 30-239 Krakow, Poland.
Journal of Agronomy and Crop Science
, 177
, 4
, p.245-252
, 1996
Language: English
Summary Language: German
Document Type: Journal article
Abstract: Experiments were performed to evaluate seed germination and seedling growth
under simulated drought conditions as techniques for screening for drought tolerance. Several laboratory
screening tests were evaluated for their ability to estimate drought resistance in 18 cultivars of field bean
(Vicia faba), soyabean (Glycine max), field pea (Pisum sativum) and lupin (Lupinus albus and L.
angustifolius). Drought was simulated by a mannitol solution of chemical water potential ( psi ) -0.3 and
-0.6 MPa. Both solutions significantly affected seed germination (final germination and index of
germination speed) and seedling growth parameters (seedling height, dry matter of shoot and root, and
leaf injury caused by drought and heat). The tested cultivars were grouped as drought resistant or drought
susceptible. Drought tolerance ratings of legume plants in laboratory tests were, overall, consistent with
ratings based on estimation of direct effects of soil drought on seed yield in field experiments.
Measurements of electroconductivity of leaf diffusate to evaluate invisible injury caused by drought or
heat were found to be adequate for rating drought tolerance. It is concluded that tolerance of drought
stress in growing seedlings can be screened for by using nutrient solutions containing mannitol. The
results revealed varietal differences in seed germination, seedling growth and leaf injury as affected by
drought or heat, however, not all of the treatments were equally useful for screening legume species
cultivars.
(17 ref.)
Subjects:
- seed germination
- seedling growth
- screening
- tolerance
- varietal
reactions
- water stress
- stress
- faba beans
- soyabeans
- peas
- mannitol
- heat
stress
- electrical conductivity
- leaves
- techniques
- grain legumes
- drought
resistance
- Vicia faba
- Glycine max
- Pisum sativum
- Lupinus albus
- Lupinus
angustifolius
- Glycine
(Fabaceae)
- Vicia
- Papilionoideae
- Fabaceae
- Fabales
- dicotyledons
- angiosperms
- Sper
matophyt a
- plants
- Glycine (Fabaceae)
- Pisum
- Lupinus
- Plant Breeding & Genetics
- Environmental Tolerance of Plants
- Techniques & Methodology
CAS®
Registry Numbers:
CAB ABSTRACTS
©1997 CAB
International. All rights reserved.
Dialog® File Number 50 Accession Number 3328711
Top
© 2009 Dialog LLC All Rights Reserved.