THE INFLUENCE OF THE EXTRACT OF SOME CROPS AND SOIL RESIDUES ON GERMINATION AND GROWTH

1960 ◽  
Vol 40 (1) ◽  
pp. 188-197 ◽  
Author(s):  
K. F. Nielsen ◽  
W. B. Woods ◽  
T. F. Cuddy
Keyword(s):  
Seed Germination ◽  
Root Length ◽  
Deionized Water ◽  
The Other ◽  
Percentage Germination ◽  
Soil Extracts ◽  
Field Crops ◽  
Time Required ◽  
Germination And Growth ◽  
Germinated Seeds

Six plant species were germinated in sand wetted with water extracts of tissues of five field crops and three soils. Deionized water was used as a check f he study was conducted using standard seed germination techniques.Alter 7 to 10 days all of the germinated seeds were harvested and measurements made of the shoot and root lengths.Alfalfa extract caused the greatest reduction in shoot and root length as well as m percentage germination. It caused the greatest increase in the time required for germination. Timothy extract was not quite as harmful as the alfalfa. Extracts of oats, corn and potatoes were still less harmful with potato extract causing the least effect.The soil extracts generally had very little effect when compared with deionized water.Plant species showed marked differences in tolerance to the extracts alfalfa being the most resistant and timothy the least.Where water alone was used rate of germination and per cent germination were as high or higher than with the other extracts, but the root and shoot lengths were not always the greatest.

scholarly journals Pengaruh Konsentrasi dan Lama Perendaman GA3 terhadap Perkecambahan Benih dan Pertumbuhan Bibit Johar (Cassia seamea)

2021 ◽  
Vol 5 (1) ◽  
pp. 1-6
Author(s):  
Ahmad Yunus ◽  
Arifiya Qifni ◽  
Puji Harsono ◽  
Bambang Pujiasmanto
Keyword(s):  
Seed Germination ◽  
Medicinal Plant ◽  
Gibberellic Acid ◽  
Active Compound ◽  
Root Length ◽  
Research Method ◽  
Percentage Germination ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Germination And Growth

Johar (<em>Cassia seamea</em>) is a medicinal plant with a cassiarin A compound to combat malaria and has a low Cassiarin A is an active compound in Johar (<em>Cassia seamea</em>) medicinal plant capable of combating malaria, despite showing a low seed production rate due to dormancy. This inactivity is severed using gibberellic acid (GA<sub>3</sub>) treatments. This study aims to determine the effects of concentration and soaking period of GA<sub>3</sub> on seed germination and growth of Johar seedlings. A completely randomized design (CRD), consisting of 2 treatments was applied as the research method. The first treatment employed GA<sub>3</sub> concentrations of 0, 45, 90 and 135 ppm, while the second was based on the soaking interval at 6, 12, 18 and 24 hours. The results showed the capacity of GA<sub>3</sub> able to shatter the seed dormancy with percentage germination of 43.03% and a concentration of 50.28 ppm. Therefore, the interaction of the two treatments significantly influenced the growth of Johar seedlings. Consequently, the concentration of GA<sub>3</sub> at 79.89 ppm increased the root length to 52.19 cm, while 84.68 ppm produced a total of 20.91 roots, after a 6 hour soaking. In addition, the 96.67 ppm expanded the stem diameter by 0.93 cm.

scholarly journals Early development of corn seedlings primed with synthetic tenorite nanofertilizer

2020 ◽  
Vol 42 ◽  
Author(s):  
Michel Esper Neto ◽  
David W. Britt ◽  
Kyle Alan Jackson ◽  
Alessandro Lucca Braccini ◽  
Tadeu Takeyoshi Inoue ◽  
...  
Keyword(s):  
Seed Germination ◽  
Size Effects ◽  
Seed Priming ◽  
Seedling Development ◽  
Cuo Nanoparticles ◽  
The Other ◽  
Corn Seed ◽  
Cu Toxicity ◽  
Germination And Growth

Abstract: Fertilizer formulation alternatives that avoid unnecessary losses and environmental impacts are being investigated in agricultural management. Seed priming with nanofertilizers prior to planting, reduces concerns about non-target dispersion; however, priming formulations and concentrations must be carefully selected to avoid undesired effects. Here, seed germination and seedling development were evaluated after seed priming with CuO nanoparticles (NPs), CuO bulk and CuCl2. The seeds were immersed in priming solutions of 0, 20, 40, 80 and 160 mg.L−1 Cu for the three Cu sources. Following 8 hours priming, the seeds were evaluated for germination and vigor (first germination count). Root and shoot lengths were measured as well as shoot and root dry biomass. The copper NP did not show any toxic effects on corn seed germination and growth, and also promoted higher biomass when compared to the other Cu sources. On the other hand, CuCl2 primed seeds exhibited Cu-toxicity in roots and shoots for all concentrations tested. Bulk Cu priming results indicated the better role of NPs size effects. These findings support NP-seed priming as an alternative to delivery of essential micronutrients, such as copper, to corn seedlings.

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 Effect of electric field on seed germination and growth parameters of chickpea Cicer arietinum L.

2020 ◽  
Vol 10 (4) ◽  
pp. 12-16
Author(s):  
A. Afrasiyab ◽  
J. Zafar ◽  
H. Muhmmad
Keyword(s):  
Seed Germination ◽  
Electric Field ◽  
Cicer Arietinum ◽  
Root Length ◽  
Growth Parameters ◽  
Dry Weight ◽  
Control Group ◽  
Cicer Arietinum L ◽  
Number Of Leaves ◽  
Germination And Growth

Cicer arietinum (L.) seed were exposed to electric field in the soil via electrodes. Five different EF were (3V,6V, 9V, 12V, and 0V) were induced 10 min after 24hours for 100 days, each treatment was consisting of an isolated gathering of plants. The rate of seed germination was enhanced to the control group. Plant height, root length, number of leaves, number of flowers, dry weight of the plant, and seed weight were measured at harvesting. Plants height by the influence of 3V, 6V, 9V and 12V were found to be significant in all treated groups than the control group, having an increase of 25.5%, 30.5%, 11.8%, and 17.1%. Similarly, root length was significantly increased than the control group, being increased in 3V, 6V and 12V by 28.6%, 24.0%, 3.0% and retarded in 9V by -3.0%. Leaves numbers were significantly higher than the control group, being increased by 25.3%, 25.2%, 15%, and 19.3% respectively. There was no centrality contrast found indifference in, number of flowers, the dried weight of plant and weight of seeds respectively.

GREEN FOXTAIL: SEED DORMANCY, GERMINATION AND GROWTH

1971 ◽  
Vol 51 (1) ◽  
pp. 53-59 ◽  
Author(s):  
W. H. VANDEN BORN
Keyword(s):  
Seed Germination ◽  
Light Intensity ◽  
Western Canada ◽  
Field Crops ◽  
Green Foxtail ◽  
Wide Range ◽  
Moist Storage ◽  
Competitive Efficiency ◽  
Germination And Growth ◽  
Reduced Temperature

Green foxtail seed exhibited complete or near-complete dormancy when freshly harvested. This dormancy was overcome most readily during moist storage at 6 C for three to six weeks. Seed germination occurred over a wide range of temperature, but most rapidly at or above 25 C. Seedlings emerged readily from planting depths up to 8 cm. Plants emerging as late as the end of July could still produce seeds during the same season. Implications of the findings for green foxtail control are discussed. Severely restricted growth of green foxtail under reduced temperature and light intensity is considered to account for at least part of the reported low competitive efficiency of green foxtail infestations in field crops in western Canada.

scholarly journals Viability and susceptibility of propagation material from coffee plants to Colletotrichum sp.

2015 ◽  
Vol 36 (6) ◽  
pp. 3539
Author(s):  
Cláudio Ogoshi ◽  
Felipe Augusto Moretti Ferreira Pinto ◽  
Helon Santos Neto ◽  
Bruno Marques da Silva ◽  
Mário Sobral de Abreu ◽  
...  
Keyword(s):  
Seed Germination ◽  
The Other ◽  
Pathogenicity Test ◽  
Disease Progress Curve ◽  
Spot Disease ◽  
Progress Curve ◽  
Commercial Cultivars ◽  
Coffee Plants ◽  
Germinated Seeds ◽  
Propagation Material

This study aimed to verify the viability of propagation material from coffee plants descended from germplasm susceptible to blister spot disease as well as its susceptibility to Colletotrichum sp. relative to commercial coffee cultivars. In the first experiment, fruits were harvested from plants with and without symptoms of blister spot and sowed in trays containing a commercial sterilized substrate. The percentages of germinated seeds, viable plantlets and seedlings were evaluated. In diseased tissues, pathogens were isolated and identified though a pathogenicity test. In the second experiment, ten commercial cultivars and one cultivar originating from plants with blister spot were inoculated with the pathogens to assess the severity of anthracnose. Significant differences were not observed with respect to seed germination. However, the viability of plantlets and seedlings was reduced in the cultivar originating from plants with blister spot (Genotype Originated from Diseased Plants-GODP). These plants showed characteristic symptoms of blister spot, including necrosis in the leaves and hypocotyls, wilting and death. In the necrotic lesions, we observed characteristic sporulation of Colletotrichum sp. The cultivar most susceptible to anthracnose in cotyledonary leaves was Catuaí Vermelho (GODP), which presented the highest area under the disease progress curve (AUDPC). In conclusion, the viability of propagation material from coffee plants that had descended from plants with symptoms of blister spot (GODP) was reduced compared with plants from other genotypes, although seed germination was not affected. Moreover, GODP species are more susceptible to Anthracnose on the cotyledonary leaves relative to the other analyzed commercial cultivars. This work is the first to report on different symptoms exhibited by seedlings originating from the seeds of plants with symptoms of blister spot.

scholarly journals Effect of cadmium on germination and growth of wheat

2019 ◽  
pp. 57-68
Author(s):  
Rudolf Kastori ◽  
Ivana Maksimovic ◽  
Marina Putnik-Delic ◽  
Vojislava Momcilovic ◽  
Milena Rajic
Keyword(s):  
Seedling Growth ◽  
Dry Matter ◽  
Deionized Water ◽  
The Other ◽  
Wheat Grains ◽  
Germination And Growth ◽  
Growth Of Seedlings

In this study, the effect of Cd on the germination, growth of seedlings and composition of plants deriving from contaminated grains, grown in the field, was ex?amined. Wheat grains were soaked in Cd-containing solutions: 0 (control, deionized water), 10-5, 10-4, 10-3, and 10-2 M CdCl2 during 24h. One portion of grains was used to test germi?nation and seedling growth, while the other was sown in the field. The concentration of Cd in the grains almost linearly increased with the increase in the applied concentrations of Cd, which reduced the germination and energy of germination and increased the proportion of atypical seedlings. Larger concentrations of Cd significantly impaired the growth of seedlings (length of the shoots and roots, dry matter mass). In the grains of the field-grown plants the concentrations of N, P, and K were not affected by Cd, but their concentrations in the straw declined (especially of N). These results suggest that the emergence and development of plants on the soil polluted by Cd are likely to be significantly limited and yield reduced.

scholarly journals Homeopathy for Treating Contaminated Cucumber Seedlings With the Herbicide Residues

2019 ◽  
Vol 11 (11) ◽  
pp. 295
Author(s):  
Ricardo A. Felito ◽  
Oscar M. Yamashita ◽  
Wagner Gervazio ◽  
Marco A. C. Carvalho ◽  
Delmonte Roboredo ◽  
...  
Keyword(s):  
Root Length ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
The Other ◽  
Distilled Water ◽  
Percentage Germination ◽  
Fresh Weight ◽  
Significant Difference ◽  
Germination Speed

The aim of this study was to evaluate the effect of homeopathic medicines in the neutralization of waste herbicide 2,4-D+picloram in cucumber seeds, in the municipality of Alta Floresta-MT process. The experiment was carried out to evaluate two herbicide concentrations and five Nux vomica dynamizations (6CH, 12CH, 18CH, 24CH and 30CH), in addition to two controls, one with distilled water and the other contaminated with herbicide alone. The variables assessed were germination percentage, germination speed index, fresh weight, dry weight, shoot length, root length and stem thickness, where we observed a significant difference in most of the variables analyzed. From the results, it can be concluded that the homeopathic preparations in five dynamics of Nux vomica (6CH, 12CH, 18CH, 24CH and 30CH), act positively on vigor and development of cucumber seeds.

scholarly journals EFFECT OF DIFFERENT DRYING METHODS ON SEED GERMINATION OF TWO PEPPER VARIETIES

2021 ◽  
Vol 10 (19) ◽  
pp. 129-133
Author(s):  
Hasan Pinar ◽  
Funga Ulrich ◽  
Mahmut Kaplan
Keyword(s):  
Seed Germination ◽  
Solid Medium ◽  
The Other ◽  
Drying Methods ◽  
Percentage Germination ◽  
Processing Methods ◽  
Sun Drying ◽  
Seed Industry ◽  
New Processing ◽  
Positive Effect

High seed germination is an important criteria in the seed industry, so the discovery of new processing processing methods that can improve percentage germination will be of great benefit for seed producers as well as for farmers. Seed germination tests of two pepper varieties (Bozok and pinar) that were dried using common (sun, shade, greenhouse) and novel (oven, microwave, liyofilization) drying methods were experimented. Two types of solid medium were used, one which was a mixture of peat and perlite (M1) and the other that contained only vermiculite (M2), a paper wet test in petridish (M3) was also performed, but was not replicated. There were no difference between both medium but a difference in viability in both varieties, Bozok was found to be more viable. Sun drying gave the highest emmergence rate 80% and 60% respectively in M2 and M1 for Bozok. Novel drying methods had no positive effect on seed germination.

scholarly journals Effects of Zn2+ Stress on Seed Germination and growth of seedling

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Wenbin Liu ◽  
Aizhen Shao ◽  
Chuanying Wang
Keyword(s):  
Seed Germination ◽  
Chlorophyll Content ◽  
Root Length ◽  
Stress Condition ◽  
Zinc Concentration ◽  
Germination Rate ◽  
Germination Index ◽  
Stem Length ◽  
Zinc Fertilizer ◽  
Germination And Growth

The effects of Zn2+ stress on seed germination, seedling growth and chlorophyll content were studied in order to better understand the effect of heavy metal Zn on the growth and development of green plants. The concentration gradient of Zn2+ was 20, 50,100,150,200,300,500,700mg / L, and deionized water was used as control. The results showed that under the Zn2+ stress condition, the germination index of the rhubarb seeds increased with the increase of Zn2+ concentration. Germination potential, germination rate and germination index were the highest when Zn2+concentration was 100mg / L, the conductivity was the lowest at zinc concentration of 100mg / L, the root length, stem length and chlorophyll content of Zn2+ gradually reduced. The results showed that the amount of Zn2+ could promote seed germination, but the root length, bud length and chlorophyll content of seedlings could be affected by different degrees. The zinc fertilizer should be used in the production.

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