Fiber and seed type of hemp (Cannabis sativa L.) responded differently to salt-alkali stress in seedling growth and physiological indices

2019 ◽  
Vol 129 ◽  
pp. 624-630 ◽  
Author(s):  
Huaran Hu ◽  
Hao Liu ◽  
Guanghui Du ◽  
Yang Fei ◽  
Gang Deng ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Cannabis Sativa ◽  
Alkali Stress ◽  
Seed Type ◽  
Physiological Indices

Germination and seedling growth of ultra-dried alfalfa seed under alkali stress

2011 ◽  
Vol 19 (3) ◽  
pp. 655-660 ◽  
Author(s):  
Ping-Hui HUO ◽  
Shang-Li SHI ◽  
Jian-Feng LI ◽  
Shu-Qing ZHANG
Keyword(s):  
Seedling Growth ◽  
Alkali Stress ◽  
Alfalfa Seed

scholarly journals Physiological and Biochemical Responses of Jerusalem Artichoke Seedlings to Mixed Salt-Alkali Stress Conditions

2015 ◽  
Vol 43 (2) ◽  
pp. 473-478 ◽  
Author(s):  
Shuai SHAO ◽  
Mingming QI ◽  
Shuang TAO ◽  
Jixiang LIN ◽  
Yingnan WANG ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Jerusalem Artichoke ◽  
Soil Salinization ◽  
Stress Conditions ◽  
Energy Crop ◽  
Alkaline Stress ◽  
Alkali Stress ◽  
Mixed Salt ◽  
Effective Utilization ◽  
Alkaline Conditions

Soil salinization and alkalization frequently co-occur in the grassland, but little information exists concerning the mixed effects of salt-alkaline stress on plant. Jerusalem artichoke is an economically and ecologically important energy crop and also considered as a salt-tolerant species. In this study, we investigated the effects of 12 mixed salt-alkaline conditions on the seedling growth and responses of Jerusalem artichoke to such conditions. The results showed that the seedling growth decreased with the increasing salinity and pH, and the destructive effects were more markedly under the interactions of highest salinity and pH. The Na+, Mg2+ and Ca2+ concentrations were all increased with the increasing salinity and pH, but the K+ kept stable. The Cl- concentration increased when the treatment without alkali salts, and the NO3– and H2PO4- concentrations were decreased with the increasing salinity. Jerusalem artichoke seedlings enhanced organic acids and proline to supply the shortage of inorganic anions and cope with osmotic stress from the high Na+ concentration. Above results show that the toxicity effects of the interactions of salt stress and alkali stress on plant is much greater than that only salt or alkali stress. A better understanding of the seedlings of Jerusalem artichoke under mixed salt-alkali stress conditions should facilitate the effective utilization of this species under such complex environment in Northeast China.

Landfill Leachate Effects on Germination and Seedling Growth of Hemp Cultivars (Cannabis Sativa L.)

2017 ◽  
Vol 10 (2) ◽  
pp. 369-376 ◽  
Author(s):  
Magdalena Daria Vaverková ◽  
Jan Zloch ◽  
Dana Adamcová ◽  
Maja Radziemska ◽  
Tomáš Vyhnánek ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Landfill Leachate ◽  
Cannabis Sativa

scholarly journals Transcriptome differences between fiber-type and seed-type Cannabis sativa variety exposed to salinity

2016 ◽  
Vol 22 (4) ◽  
pp. 429-443 ◽  
Author(s):  
Jiajia Liu ◽  
Qin Qiao ◽  
Xia Cheng ◽  
Guanghui Du ◽  
Gang Deng ◽  
...  
Keyword(s):  
Cannabis Sativa ◽  
Fiber Type ◽  
Seed Type

scholarly journals Industrial Hemp (Cannabis sativa L.) Varieties and Seed Pre-Treatments Affect Seed Germination and Early Growth of Seedlings

Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 6
Author(s):  
Mohammad Moinul Islam ◽  
Zed Rengel ◽  
Paul Storer ◽  
Kadambot H. M. Siddique ◽  
Zakaria M. Solaiman
Keyword(s):  
Seed Germination ◽  
Growth Medium ◽  
Seedling Growth ◽  
Chlorine Dioxide ◽  
Cannabis Sativa ◽  
Early Growth ◽  
Growth Responses ◽  
Hemp Seed ◽  
Industrial Hemp ◽  
Growth Of Seedlings

Seed germination and seedling growth are two essential early determinants of subsequent crop yield and quality. A high germination percentage of industrial hemp (Cannabis sativa L.) seed is required to import into Australia. The viability of hemp seed can decline rapidly depending on storage and other factors; hence, the quality of imported seed is not always reliable. Here, we aimed to investigate germination and early seedling growth responses of 14 industrial hemp varieties after being imported from various countries. Germination trials were conducted with 100 seeds of 14 varieties using a soil-less Petri dish assay and a compost growth medium under glasshouse conditions. We also assessed the effect of seed pre-treatments such as gibberellic acid (500 and 1000 mg·L−1), chlorine dioxide (500 and 1000 mg·L−1) and cold temperature (4 °C for 72 h) using 300 seeds of each of the three selected varieties in compost growth medium. Hemp varieties imported from China had higher germination and better seedling growth indices than those imported from Europe. All seed pre-treatments were associated with a decreasing trend in germination, but a positive effect on early growth responses was observed. Our findings indicate that the hemp variety Han FNQ performed better than many other varieties did regarding seed germination and seedling growth. Hemp seeds sanitising with 500 mg·L−1 of chlorine dioxide might improve the germination and early growth of seedlings.

scholarly journals ALLELOPATHIC POTENTIAL AND PHYTOCHEMICAL SCREENING OF FOUR MEDICINAL PLANTS OF NEPAL

2015 ◽  
Vol 12 (12) ◽  
pp. 56-61 ◽  
Author(s):  
Swasti Sharma ◽  
Ajana Devkota
Keyword(s):  
Medicinal Plants ◽  
Seedling Growth ◽  
Cannabis Sativa ◽  
Ageratum Conyzoides ◽  
Test Species ◽  
Phytochemical Study ◽  
Allelopathic Potential ◽  
Eclipta Prostrata ◽  
Phenol Glycoside ◽  
Paper Method

The laboratory tests were conducted to evaluate the allelopathic potential and phytochemical study of the four selected medicinal plants Ageratum conyzoides, Eclipta prostrata, Cannabis sativa and Woodfordia fructicosa. The aqueous extract bioassay of the plants with stem and root were conducted on the two test seeds Triticum aestivum (wheat) and Pisum sativum (pea) by filter paper method. Germination, seedling growth and biomass production were observed under the allelopathic study whereas under phytochemical study qualitative or presence or absence and quantitative or crude amount of the phytochemicals present were also estimated. For the allelopathic studies the germination and seedling growth of wheat and pea test species under the different concentrations 2 %, 4%, 6%, 8% and 10% of the stem and root extracts of the plants under study were carried out. Increased concentration of the aqueous extracts of the plants increased the inhibitory rate or decreased the germination and seedling growth.Species sensitivity varied with the test seeds and alkaloid, flavonoid, saponin, tannin, phenol, glycoside and essential oil were the phytochemicals present in the plant extracts.Scientific World, Vol. 12, No. 12, September 2014, page 56-61   

Cannabis und Schizophrenie

2002 ◽  
Vol 48 (5) ◽  
pp. 336-345 ◽  
Author(s):  
Jürgen Seifert ◽  
Jann Schlimme ◽  
Felix Wedegärtner ◽  
Hinderk M. Emrich ◽  
Udo Schneider
Keyword(s):  
Cannabis Sativa ◽  
Cannabinoid System ◽  
Psychotische Störungen

Überblick: Cannabis sativa ist eine der ältesten medizinischen Heilpflanzen. In den westlichen Kulturen wird Cannabis überwiegend als Freizeitdroge angesehen. Im Harz sowie in den Blüten der weiblichen Pflanze findet sich ein Gemisch aus verschiedenen psychoaktiven Inhaltsstoffen. Am bedeutendsten ist in diesem Zusammenhang das delta-9-Tetrahy-drocannabinol. </P><P> Epidemiologie: Nicht selten werden die Gefahren des Cannabiskonsums, wie z. B. die Möglichkeit der Induktion einer Psychose unterschätzt. Wenn man jedoch berücksichtigt, wie häufig z. B. Jugendliche THC konsumieren, ist die Frage, ob Cannabis eine Psychose aus dem schizophrenen Formenkreis de novo induzieren kann, von besonderem gesundheitspolitischem und volkswirtschaftlichem Interesse. Die Datenlage ist allerdings nach wie vor unklar. Die klinisch-epidemiologischen Studien deuten aber darauf hin, dass Cannabiskonsum bei vulnerablen Personen schizophrenieforme Psychosen auslösen kann und einen ungünstigen Krankheitsverlauf zur Folge hat. </P><P> Das endogene Cannabinoid-System: Die vorliegende Arbeit gibt außerdem einen Überblick der Publikationen, die sich mit dem körpereigenen Cannabinoid- System und seinen endogenen Liganden im Hinblick auf psychotische Störungen beschäftigen.

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