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Wyszukujesz frazę "germination percentage" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Effects of NaCl stress on seed germination attributes of periwinkle (Catharanthus roseus L.) and corn poppy (Papaver rhoeas L.) plants
Autorzy:
Saeb, H.
Khayyat, M.
Zarezadeh, A.
Moradinezhad, F.
Samadzadeh, A.
Safaee, M.
Powiązania:
https://bibliotekanauki.pl/articles/2199726.pdf
Data publikacji:
2012-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
corn poppy
germination percentage
periwinkle
radicle length
salinity
Opis:
The present research was conducted to evaluate the effects of salinized water with NaCl on seed germina- tion of Periwinkle and Corn Poppy. Treatments were: A) H2O- distilled water (control); B) sodium chloride solutions (5, 10, 20, 40 and 80 mM). Application of the highest NaCl concentration (80mM) significantly reduced germination percentage and mean germination time of both species, although increased the day of 50% germination. Increment of salinity concentration was led to the reduction of radicle length in Periwinkle. The seedling fresh weight and water content and radicle length of Corn Poppy were decreased in both levels of 20 and 80 mM, and seedling dry weight was unaffected by treatments. It is concluded that both species are tolerant to NaCl salinity up to 80 mM during germination stage.
Źródło:
Plant Breeding and Seed Science; 2012, 67; 115-124
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Germination response of grasspea (Lathyrus Sativus L/) and arugula (Eruca Sativa L.) to osmotic and salinity stresses
Autorzy:
Fallahi, Hamid-Reza
Fadaeian, Golsoom
Gholami, Marziyeh
Daneshkhah, Omolbanin
Hosseini, Fatemeh Sadat
Aghhavani-Shajari, Mahsa
Samadzadeh, Alireza
Powiązania:
https://bibliotekanauki.pl/articles/2199634.pdf
Data publikacji:
2015-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
environmental stresses
germination percentage
germination rate
poluethylene glycol
sodium chloride
Opis:
The use of genetic potential of forgotten plants such as grasspea and arugula is an appropriate strategy for increasing of plants tolerance to environmental stresses. Therefore, in this laboratory study the effects of different levels of osmotic (0, -2, -4, -6, -8, -10, -12 and -14 bar caused by PEG) and salinity (0, 50, 100, 150, 200, 250, 300 and 350 mmol induced by NaCl) stresses were evaluated on germination indices of grasspea and arugula in four separate experiments. Arugula showed a suitable tolerance to osmotic stress, so that its germination percentage and rate at treatment of -10 bar were similar to control. Arugula had 79% germination at osmotic level of -14 bar, but its germination rate at this level was 60% lower than control. In addition, its radicle length until -8 bar and radicle dry weight up to -14 bar were higher than control treatment. However, all levels of salinity stress particularly treatments of more than 100-150 mmol decreased the germination indices of arugula. Germination percentage of arugula in 150 and 200 mmol treatments was 22 and 56% lower than control treatment, respectively. Grasspea had partially suitable tolerance to osmotic stress until -6 bar, but then intensified the reducing trends of its germination indices and finally reached to zero at -14 bar treatment. Moreover, salinity stress especially treatments of higher than 100 mmol decreased all germination indices of grasspea. Overall, arugula was a more tolerant plant especially to osmotic stress; therefore this forgotten plant can be used in agronomic and breeding programs in areas affected by drought stress
Źródło:
Plant Breeding and Seed Science; 2015, 71; 97-108
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of a natural aminopolysaccharide in seed film-coating for pest control and cotton growth
Autorzy:
Zeng, DeFang
Mei, Xiang
Powiązania:
https://bibliotekanauki.pl/articles/2199649.pdf
Data publikacji:
2012-04-19
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
aminopolysaccharid
cotton seed coating
antifeedant
germination percentage
lint yield
Opis:
Cotton suffers attacks of various pests that result in a decreased yield. Until recently, the chemical control of pests was achieved through seed film-coating treatment with toxic insecticides. The natural aminopolysaccharide extracts from crab is a promising candidate as a repellent to protect cotton from Aphis gossypii Glover and Helicoverpa armigera Hubner. Experiments were conducted to study the effect of aminopolysaccharide on pest control, seed germination, plant growth and lint yield. Results indicated that all aminopolysaccharide treatments of different content repelled pests efficiently and increased significantly seed germination, plant growth and cotton yield. The natural aminopolysaccharide extracts from shrimp is a promising candidate as a repellent to protect cotton from Aphis gossypii Glover and Helicoverpa armigera Hubner. The application of the potential aminopolysaccharide by seed coating is an appropriate option for controlling pests and avoiding environmental pollution.
Źródło:
Plant Breeding and Seed Science; 2012, 65; 63-70
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards the propagation of a critically endangered tree species Anisoptera scaphula
Autorzy:
Hossain, M.A.
Ferdous, J.
Rahman, M.A.
Azad, M.A.K.
Shukor, N.A.A.
Powiązania:
https://bibliotekanauki.pl/articles/41522.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
propagation
endangered species
tree
Anisoptera scaphula
Dipterocarpaceae
seed
sowing position
germination percentage
rooting ability
Opis:
Anisoptera scaphula (Roxb.) Kurz, the tallest tree species in Bangladesh, is critically endangered worldwide due to its poor natural regeneration. This study describes the appropriate regeneration technique for A. scaphula through seed germination and clonal propagation by stem cutting. The fastest and highest germination percentage (65) was observed in dewinged seeds sown inverted orientation with half buried position (T10) followed by dewinged seeds (62.5%) sown horizontally in full buried (T7) and delayed germination with lowest percentage (15) was in control (T0). Optimum initial growth was also shown when seedlings were developed from the seeds under T7. Both winged and dewinged seeds sown vertically in full buried or half buried position produced curved seedlings. However, dewinged seeds sown in horizontal or inverted (winged side down) position produced otherwise i.e., straight seedlings. The highest rooting percentages (63%) and maximum number of root (4.8) per cutting were obtained when one node cuttings treated with 0.8% IBA solution followed by 0.4% IBA in turn affecting for better survival and growth of rooted cuttings in the nursery conditions.
Źródło:
Dendrobiology; 2014, 71
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physico-chemical analysis of sugar factory effluent stress on seedling growth of black gram (Vigna mungo (L.) Hepper) varieties
Autorzy:
Elayaraj, B.
Powiązania:
https://bibliotekanauki.pl/articles/11401.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
physicochemical analysis
sugar factory
effluent
plant stress
seedling
plant growth
black gram
seed
Vigna mungo
germination percentage
Opis:
The physico-chemical parameters of the content in the effluents from Rajasree sugar factory of Villupuram district have been explored and its impact on the germination and growth patterns of black gram varieties has been studied. Physico-chemical parameters included color, odour, pH, temperature, electrical conductivity, suspended solids, dissolved solids, BOD, COD, chloride, sulphate, calcium, oil and grease concentration. Germination studies was conducted with black gram seed varieties (ADT-3, ADT-5, Vamban-3, Vamban-5 and Co-6) treated with different concentrations (control, 5, 10, 25, 50, 75 and 100 % ) of sugar mill effluent. Germination studies parameters such as germination percentage, germination index, shoot length, root length, fresh and dry weight of seedlings were found to be increased up to 10 % concentration of effluent. Vigour index, tolerance index, percentage of phytotoxicity and germination index were also calculated. The above mentioned parameters were decreased with the increase of effluent concentrations (25-100 %).
Źródło:
International Letters of Natural Sciences; 2014, 12, 1
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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