scholarly journals Water Quality Demonstrates Detrimental Effects on Two Different Seeds during Germination

2019 ◽  
Vol 7 (3) ◽  
pp. 377-389
Author(s):  
Moumita Maity ◽  
Gourab Chatterjee ◽  
Rajarshi Banerjee
Keyword(s):  
Water Quality ◽  
Seed Germination ◽  
Seedling Growth ◽  
Root Hairs ◽  
Reducing Sugar ◽  
Polluted Water ◽  
Total Carbohydrate ◽  
Quality Of Water ◽  
Germination And Growth ◽  
Biochemical Assessment

The study was aimed to determine the effects of water quality on seed germination and seedling growth of Cicer arietinum and Brassica juncea under laboratory condition at Haldia, West Bengal. Water from four different water bodies was examined including one control. Both the plant seeds and seedlings were treated for 15 days; and this was carried for three times in a year with each type of water. The germination and growth was observed for two weeks and mean readings were taken in the result. Shoot length, root length, number of root hairs, root hair length, and some biochemical assessment were determined. Biochemical assessment includes total carbohydrate, reducing sugar, total non-reducing sugar, protein content and total DNA. It was observed through all the parameters that the seed germination and growth of seedlings were highly sensitive to the quality of water and the polluted water exerted a kind of stress level to their growth. From the result it could be concluded that different quality water had significantly affected the seed germination and seedling growth of two species of plants assessed.

Allelopathic Effects of Lantana (Lantana camara) on Milkweedvine (Morrenia odorata)

Weed Science ◽  
1984 ◽  
Vol 32 (6) ◽  
pp. 757-761 ◽  
Author(s):  
Nagi Reddy Achhireddy ◽  
Megh Singh
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Germination Percentage ◽  
Lantana Camara ◽  
Test Period ◽  
Percentage Germination ◽  
Allelopathic Activity ◽  
Foliar Symptoms ◽  
Allelopathic Effects ◽  
Germination And Growth

Allelopathic effects of lantana (Lantana camaraL. ♯3LANCA) residues (root, shoot), foliar leachates, and the soil (where lantana was grown) on milkweedvine (Morrenia odorataLindl. ♯3MONOD) seed germination and growth over a 30-day period were examined. Foliar leachates or the soil collected from the field where lantana had been growing had no effect on the final germination percentage or the seedling growth of milkweedvine. Incorporation of dried lantana shoot or root material into soil had no effect on the final percentage germination but caused significant reductions in milkweedvine growth over a 30-day test period. Roots were more inhibitory than shoots. Fifty percent of milkweedvine seedlings died within 15 days after germination at 1% (w/w) dried lantana root incorporation into the soil, and higher concentrations increased seedling death. Lantana roots incorporated into the soil produced foliar symptoms such as wilting and desiccation, whereas lantana shoots incorporated into the soil produced yellowing of the foliage of milkweedvine. Allelopathic activity of lantana residues was still strong even after decomposition of lantana residues for 4 weeks prior to the planting of milkweedvine seeds.

scholarly journals The Kuybyshev Reservoir Volga Reach Water Quality Assessment by the Zooplankton Status

2019 ◽  
Author(s):  
Keyword(s):  
Water Quality ◽  
Building Materials ◽  
Water Quality Assessment ◽  
Vegetation Period ◽  
Water Area ◽  
Polluted Water ◽  
Federal State ◽  
Individual Species ◽  
Kuibyshev Reservoir ◽  
Quality Of Water

The object of the study were three different in their hydrological characteristics, as well as the degree of anthropogenic load on them (in the form of sewage from the adjacent territory), the area of the water area of the Volga reaches of the Kuibyshev Reservoir, where there are deposits of nonmetallic building materials. Studies were conducted during the vegetation period 2014-2015. They included physical/chemical studies and studies of the state of zooplankton. Total 311 samples of zooplankton were collected and processed. During the study, 30 species of zooplankton organisms were recorded: 7 species of Rotifera, 7 species of Copepoda and 16 species of Cladocera. The richest in terms of the quantitative diversity of species was No. 3 site. Prevalent in terms of number and biomass of organisms – site number 1. Quantitative indicators of zooplankton were observed in 2015 compared to 2014. This is explained by the fact that 2014 was warmer than 2015. The oxygen regime of 2014 was also better than that of 2015. The turbidity of water in 2014 was below the turbidity of water in 2015, the quality of water in the second year of research deteriorated compared to the first in a number of indicators, such as COD, compounds copper, zinc, manganese, oil products. The mid-vegetation indexes of saprobity for the indicated observation period make it possible to attribute these sections of the Volga reach of the Kuibyshev reservoir to the β-mesosaprobic zone, which corresponds to the third class of water quality - moderately polluted water. Proceeding from the obtained values of the Shannon and Pielu indices, the zooplankton of the studied sections of the Volga reaches of the Kuibyshev reservoir has a rather low species richness with a rigid type of dominance, which characterizes it as mesotrophic. The ratio of groups of organisms and the dominance of individual species indicates a deterioration in water quality over a two-year period of research, which is confirmed by the research conducted by the Federal State Unitary Enterprise «UGMS RT».

scholarly journals Microbial inoculant influences the germination and growth of Albizia lebbeck seedlings in the nursery

2016 ◽  
Vol 26 (1) ◽  
pp. 82-89
Author(s):  
B. M. Khan ◽  
M. A. Kabir ◽  
M. K. Hossain ◽  
M. A. U. Mridha
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Volume Index ◽  
Cow Dung ◽  
Albizia Lebbeck ◽  
Positive Role ◽  
Total Pigment ◽  
Vigor Index ◽  
Collar Diameter ◽  
Germination And Growth

Microbial inoculants (MI), a biofertilizer, composed of many different beneficial microorganisms has positive role on seed germination and growth of plants. In the present study, its efficacy on seed germination and seedling growth of Albizia lebbeck in the nursery was studied. The seeds were sown in polybags filled with a mixture of forest soil and cow dung (3:1) and treated with 0.1%, 0.5%, 1%, 2%, 5% and 10% concentrations of MI. Most of the parameters studied (seed germination, shoot and root lengths, dry weights of shoot and root, collar diameter, leaf number etc) were found maximum in 2% of MI . Although the highest vigor index, volume index and quality index (7053, 3738 and 1.106, respectively) were found in 2% MI, but the highest sturdiness (65.95) was found in 1% MI solution. The nodule number was higher at a very low (0.5%) concentration of MI but it normally decreased with the increase of concentration. Total pigment content in leaf was recorded highest (112.86 mg.L-1) in 2% of MI. Therefore, MI influences seed germination and seedling growth of A. lebbeck and the low concentration (2%) of the inoculant can be recommended for getting maximum seed germination and seedling growth of the species studied.Banko JanakariA Journal of Forestry Information for NepalVol. 26, No. 1, Page: 82-89, 2016

Some effects of different forest litters on seed germination and growth

1981 ◽  
Vol 11 (3) ◽  
pp. 710-714 ◽  
Author(s):  
Clifford E. Ahlgren ◽  
Isabel F. Ahlgren
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Natural Habitat ◽  
Habitat Preferences ◽  
Successional Stages ◽  
Germination And Growth ◽  
Native Herbs

Germination and growth of 12 native herbs, shrubs, and trees were followed in five litter components characteristic of successional stages of the northeastern Minnesota forest. Various litter components stimulated or inhibited seed germination and seedling growth of some species. Germination and growth were not always similarly affected, suggesting that different factors may be involved. Inhibition and lack of inhibition of some species on certain litter components correlate with natural habitat preferences of these species and the nature of the litter in these habitats. This information can be of use in improving results of seeding for site reclamation and reforestation.

scholarly journals Effects of Plasma Focus on Seed Germination and Seedling Growth of 14 Thai Rice Varieties

2021 ◽  
Vol 18 (14) ◽  
Author(s):  
Vichai PURIPUNYAVANICH ◽  
Arlee TAMMAN ◽  
Piyanuch ORPONG ◽  
Roppon PICHA ◽  
Mayuree LIMTIYAYOTHIN ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Plasma Focus ◽  
Germination Rate ◽  
Growth Reduction ◽  
Rice Varieties ◽  
X Ray ◽  
Plasma Irradiation ◽  
Germination And Growth ◽  
Storage Energy

Thailand Plasma Focus 2 (TPF-2) is operated at 2.16 kJ of storage energy with argon as a filled gas and can emit sharp x-ray pulses to plant cells in nanosecond (10-9 s) duration. The effects of plasma focus x-ray on seed germination and seedling growth of 14 Thai rice varieties treated under 10 conditions; 0 (control), 2, 4, 6, 8, 10, 12, 14, 16, and 18 plasma focus shots, were investigated. The results show that the germination rates and growth reduction rates were significantly different among the rice varieties. The germination rate of 10 varieties (Jek Chuey, KDML105, LPT123, PTT1, RD41, RD47, RD49, RD67, RD79, and SPR2) decreased when treated with a high number of plasma focus shots. LD50 and GR50 values were calculated, except for KTH17, RD1, RD7, and RD31 whose germination only slightly decreased, or remained constant, even after they were treated by 18 plasma focus shots. HIGHLIGHTS Effects of plasma focus irradiation on germination and growth were assessed on 14 Thai rice varieties  Shoot and root lengths of rice seedlings were measured 10 days after of plasma treatment Plasma focus was operated at 12 kV and the number of plasma focus shots was varied from 0 (control) to 18 shots Sensitivity to plasma irradiation was found to differ among rice seeds tested GRAPHICAL ABSTRACT

scholarly journals Effect of Industrial Effluents on the Germination and Seedling Growth of Three Leafy Vegetables

1970 ◽  
Vol 45 (2) ◽  
pp. 101-104 ◽  
Author(s):  
Shameem Ara Begum ◽  
M Jahangir Alam ◽  
Syed Shayfur Rahman ◽  
M Mizanur Rahman
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Aquatic Environment ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Shoot Elongation ◽  
Leafy Vegetables ◽  
Polluted Water ◽  
Water Control ◽  
Temperature Conductivity

This study was conducted to determine the effect of industrial effluents on seed germination and seedling growth of some leafy vegetables under pot culture condition. Waste water sample was collected from natural gas fertilizer factory Limited, Fenchuganj, Sylhet. Four different leafy vegetables were selected as test crop to grow using these effluents. The design of the experiment was randomized complete block. The effects of different concentration of effluent were compared to that of distilled water (control). The results revealed that different concentrations of the extract caused significant inhibitory effect on germination and root elongation but benefited the shoot elongation. Maximum reduction in germination and root length was observed with the increase in effluent concentration, but increasing the shoot length. Bioassays indicated that the effects were proportional to the concentrations of the effluents and higher concentration showed stronger effect. Different physicochemical parameters of water e.g. pH, temperature, conductivity, dissolved oxygen (DO), chemical oxygen demand (COD), turbidity, Total dissolve solids (TSS), total suspended solids (TSS) etc. of the sample was also analyzed. It was found that the values were far apart from the optimum values that require for safe aquatic environment to establish an aquatic ecosystem on water body. It can be concluded that polluted water is becoming a threat for the crops and also for aquatic environment with the passage of time as more and more wastes are becoming a part of it. Key words: Industrial effluents; Aquatic environment; Seed germination; Seedling growth; Pollution. DOI: 10.3329/bjsir.v45i2.5705Bangladesh J. Sci. Ind. Res. 45(2), 101-104, 2010

Allelopathic effects of Engelmann spruce bark stilbenes and tannin–stilbene combinations on seed germination and seedling growth of selected conifers

1983 ◽  
Vol 61 (1) ◽  
pp. 279-289 ◽  
Author(s):  
Ronald J. Taylor ◽  
David C. Shaw
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Pinus Ponderosa ◽  
Pinus Contorta ◽  
Root Hairs ◽  
Root Tip ◽  
Engelmann Spruce ◽  
Spruce Bark ◽  
Allelopathic Effects ◽  
Petri Dishes

The allelopathic effects of Engelmann spruce bark and bark extacts on seed germination and seedling growth of several conifer species were examined. Extracts were hydroxystilbenes (isorhapontin and astringin) and condensed tannins. Experiments included the following: (i) seed germination in petri dishes with various concentrations of stilbenes and tannin–stilbenes; (ii) seed germination in petri dishes containing Engelmann spruce bark fragments; (iii) seedling growth in varying mixtures of peat/Engelmann spruce bark, the latter added either before or after seedling establishment; (iv) seedling growth in samples of Engelmann spruce forest soil horizons. In all experiments and in all species there was an allelopathic response to bark extracts. This response was expressed through inhibition of seed germination (seed-coat rupture and radicle emergence), necrotic discoloration and protoplasmic disruption of root-tip cells, suppression of root hairs, and repressed growth in general. Among the conifers tested Pinus ponderosa and Tsuga mertensiana appeared to be the most tolerant to bark extracts, Pinus contorta the most sensitive. Picea engelmannii was moderately sensitive.

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.

Effect of Co2+ and Ni2+ on Seed Germination and Seedling Growth of Oilseed Rape

2013 ◽  
Vol 807-809 ◽  
pp. 976-979
Author(s):  
Qing Song Yang ◽  
Yan Zhao
Keyword(s):  
Heavy Metals ◽  
Seed Germination ◽  
Oilseed Rape ◽  
Seedling Growth ◽  
Metal Toxicity ◽  
Growth Stage ◽  
Early Growth ◽  
Early Growth Stage ◽  
Germination And Growth ◽  
Factor Governing

Metal toxicity is an important factor governing germination and growth of plants. We have investigated how Co2+and Ni2+treatment affected germination and early growth stage of oilseed rape (Brassica napusL.). The results showed that the single pollution of Co2+was capable to stimulate the seed germination and seedling growth of oilseed rape at lower concentration, but the phenomena did not exist by the single pollution of Ni2+. Not only polluted by Co2+ but also by Ni2+, all indexes of germination and growth reduced gradually at higher concentration among examined concentration of heavy metals. Meanwhile, effects of Ni2+single pollution were stronger than that of Co2+single pollution.

Allelopathic Potential of Wheat (Triticum aestivum) Straw on Selected Weed Species

Weed Science ◽  
1982 ◽  
Vol 30 (5) ◽  
pp. 495-497 ◽  
Author(s):  
James W. Steinsiek ◽  
Lawrence R. Oliver ◽  
Fred C. Collins
Keyword(s):  
Triticum Aestivum ◽  
Seed Germination ◽  
Seedling Growth ◽  
Weed Seed ◽  
Weed Species ◽  
Allelopathic Potential ◽  
Ipomoea Lacunosa ◽  
Sesbania Exaltata ◽  
Pitted Morningglory ◽  
Germination And Growth

The allelopathic potential of wheat [Triticum aestivum(L.) ‘Doublecrop′] straw residue was evaluated on weed-seed germination and seedling growth. The inhibition of weed-seed germination and seedling growth was extract-, species-, and temperature-dependent. The extracts prepared by agitating and soaking caused greater inhibition than those obtained by leaching. The descending order of species susceptibility was ivyleaf morningglory [Ipomoea hederacea(L.) Jacq.], velvetleaf (Abutilon theophrastiMedic.), pitted morningglory (Ipomoea lacunosaL.), hemp sesbania [Sesbania exaltata(Raf.) Cory], sicklepod (Cassia obtusifoliaL.), and Japanese barnyard millet [Echinochloa crus-gallivar.frumetaceae(Roxb.) Link]. Incubation at 35 C caused the greatest inhibition of germination and growth.

Sign in / Sign up

Export Citation Format

Share Document