Effect of salt solutions of different osmotic potential on seed germination and seedling growth in someCassia species

1980 ◽  
Vol 15 (2) ◽  
pp. 149-153 ◽  
Author(s):  
K. S. Daiya ◽  
H. K. Sharma ◽  
D. D. Chawan ◽  
D. N. Sen
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Osmotic Potential ◽  
Salt Solutions

Effects of plant extracts of Bothriochloa pertusa and Urochloa mosambicensis on seed germination and seedling growth of Stylosanthes hamata cv. Verano and Stylosanthes scabra cv. Seca

1997 ◽  
Vol 48 (8) ◽  
pp. 1257 ◽  
Author(s):  
F. D. Hu ◽  
R. J. Jones
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Plant Extracts ◽  
Osmotic Potential ◽  
Root Length ◽  
Potential Effect ◽  
Control Treatment ◽  
Water Control ◽  
Stylosanthes Hamata ◽  
Allelopathic Effects

Effects of osmotic stress and of aqueous plant extracts from 4 pasture species on seed germination and seedling growth of the tropical legumes S. hamata (L.) Taub cv. Verano and S. scabra Vog. cv. Seca were investigated. Allelopathic effects of plant extracts from B. pertusa (L.) A. Camus were measured on S. scabra cv. Seca in terms of lower germination (35%) and shorter root length (35%). Extracts from Urochloa mosambicensis(Hack.) Dandy cv. Nixon had no adverse effect on Seca germination, but also reduced Seca root length. There was no evidence to support the hypothesis that B. pertusa had allelopathic effects on Verano germination or seedling growth. Extracts from Verano and Seca also reduced germination, seedling weight, and root length of Seca as well as root length of Verano. Root length was more sensitive than seedling length for ascertaining allelopathic effects, as there was no osmotic potential effect on root length up to 300 mmol/kg, whereas seedling weight and shoot length declined linearly with increasing osmotic potential (r = -0·92 and -0·99, respectively). Germination responses of Verano and Seca in solutions of both mannitol and polyethylene glycol-600 (PEG) were similar up to 300 mmol/kg, but at 600 mmol/kg Verano had a significantly higher germination in mannitol. Since the osmotic potential of the plant extracts did not exceed 78 mmol/kg, the use of osmotically adjusted control treatments had little effect on the conclusions drawn from using a distilled water control treatment.

Effects of five different salts on seed germination and seedling growth of Haloxylon ammodendron (Chenopodiaceae)

2004 ◽  
Vol 14 (4) ◽  
pp. 345-353 ◽  
Author(s):  
Kazuo Tobe ◽  
Xiaoming Li ◽  
Kenji Omasa
Keyword(s):  
Cell Wall ◽  
Plasma Membrane ◽  
Seed Germination ◽  
Seedling Growth ◽  
Saline Soils ◽  
Initial Growth ◽  
Salt Solutions ◽  
Haloxylon Ammodendron ◽  
Low Concentration ◽  
Low Concentrations

Saline soils contain multiple types of salt, each of which may exert a different effect on seed germination and seedling growth of plants. The effects of five types of salt on the initial growth of Haloxylon ammodendron, a shrub found on both saline and non-saline areas in deserts of China, were investigated. Seeds were incubated at 20°;C in the dark in a solution (0 to –5.1 MPa) of a salt (NaCl, MgCl2, CaCl2, Na2SO4 or MgSO4) or polyethylene glycol (PEG)-6000, or in a salt (NaCl or MgCl2) or PEG solution containing a low concentration of CaCl2. Seed germination, seedling growth and cation (Na+, Mg2+, Ca2+ and K+) contents of seedlings were examined. Each salt had a different effect on seed germination, seedling growth and influx and outflux of cations in the seedlings. In both NaCl and MgCl2 treatments, the addition of low concentrations of CaCl2 favoured seed germination and seedling growth, and reduced K+ outflux from seedlings, but caused no appreciable decrease in the influx of Na+ or Mg2+ into seedlings. Marked abnormalities in seedlings were found only in treatments with Mg2+ salts, but these effects were completely alleviated by a low concentration of Ca2+ (Ca2+/Mg2+ = 0.012). The different responses of the initial growth in H. ammodendron to different isotonic salt solutions were attributed to differences among salt components in membrane permeability, toxicity and effects on functions of the plasma membrane and/or the cell wall.

The effect of salinity and temperature on seed germination and growth of Hordeum jubatum

1974 ◽  
Vol 52 (6) ◽  
pp. 1357-1362 ◽  
Author(s):  
Irwin A. Ungar
Keyword(s):  
Seed Germination ◽  
Salinity Stress ◽  
Seedling Growth ◽  
Salt Concentration ◽  
Salt Solution ◽  
Osmotic Potential ◽  
Active Growth ◽  
Hordeum Jubatum ◽  
Germination And Growth ◽  
Germination Stage

Studies on the germination of Hordeum jubatum seeds indicate that they were highly tolerant of salinities up to 1.0%, with little reduction in germination. Each increase in salt concentration did, however, delay the time of germination. Seedling growth proved to be more sensitive than germination to salinity stress, with newly germinated plants showing a decrease in size with each salinity increment. Results of growth studies were similar to those in germination tests; plants decreased in size with decreased osmotic potential of the salt solution. The germination stage and later periods of active growth were nearly equal in their ability to withstand salinity stress.

IMPACT OF FERTILIZERS APPLICATION ON SEED GERMINATION AND SEEDLING GROWTH OF VIGNA RADIATA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SUPRIYA DIXIT ◽  
R. K. GUPTA
Keyword(s):  
Seed Germination ◽  
Leaf Area ◽  
Seedling Growth ◽  
Vigna Radiata ◽  
Agricultural Research ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Research Field ◽  
Chemical Fertilizer ◽  
Seedling Length

Currently, a real challenge for the workers in the agricultural research field is to stop or reduce the use of expensive agrochemicals/ chemical fertilizers which are hazardous to the environment as well as human health. Present study was aimed to improve the growth and obtain optimum yield of Vigna crop with eco-friendly, non-toxic way and to reduce the use of agrochemical/chemical fertilizer application in agricultural activities. A pot experiment was conducted to study the effect of chemical fertilizer (DAP) and biofertilizer ( Rhizobium strain) separately and in combination on seed germination and seedling growth (at 30 days) based on morphological parameters such as seedling length (cm), fresh weight (g), dry weight (g) and leaf area (cm)2 of Vigna radiata (L.) Wilczek. After one month (30 Days) observations, it was found that seedling length, fresh and dry weights and leaf area were maximum in T4 and minimum in T15, T7 and T8 favored improved seedling length and leaf area whereas T7, T8, and T9 favored improved fresh and dry weights as compared to control.

Effects of nitrogen on sweet sorghum seed germination, seedling growth and physiological traits under NaCl stress

2013 ◽  
Vol 20 (10) ◽  
pp. 1303-1309 ◽  
Author(s):  
Jing MU ◽  
Xiao-Jing LIU ◽  
Jin XU ◽  
Ren-Zhao MAO ◽  
Wei WEI ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Sweet Sorghum ◽  
Nacl Stress ◽  
Physiological Traits
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