scholarly journals SOWING QUALITIES OF SEEDS AND PRODUCTIVITY OF NON-NARCOTIC VARIETY OF HEMP DEPENDING ON PRE-PLANTING CULTIVATION

2020 ◽  
Author(s):  
И.В. Бакулова ◽  
И.И. Плужникова ◽  
Н.В. Криушин
Keyword(s):  
Seed Germination ◽  
Germination Rate ◽  
Maximum Yield ◽  
Field Conditions ◽  
Yield Increase ◽  
Laboratory Conditions ◽  
Cultivation Technology ◽  
Positive Effect

Представлены результаты изучения влияния предпосевной обработки семян на растения конопли посевной с целью совершенствования технологии возделывания. Применение изучаемых препаратов положительно действовало на энергию прорастания, всхожесть и урожайность растений. В лабораторных условиях отмечено достоверное увеличение всхожести семян при применении препаратов Альбит, ТПС и Биокомплекс БТУ на 5,0 и 7,2 % на сорте Вера, при применении препаратов ТМТД, ВСК и Биокомплекс БТУ – на 5,2 и 5,0 % соответственно на сорте Надежда. В полевых условиях показатель всхожести увеличивался по сравнению с контролем на 4,2-5,6 % у сорта Вера и на 1,8-8,5 % у сорта Надежда. За годы исследований урожайность семян конопли посевной в результате применения протравителей по всем вариантам опыта изменялась на сорте Вера в пределах 0,78-0,96 т/га и 0,66-0,84 т/га на сорте Надежда. Наибольшая прибавка урожайности на сорте Вера отмечена на вариантах с предпосевной обработкой семян препаратами Бункер, ВСК, Лигногумат и Альбит, ТПС. На сорте Надежда установлена максимальная урожайность семян на вариантах с обработкой препаратами Бенорад, СП, Бункер, ВСК и Альбит, ТПС, прибавка урожайности составила 0,16-0,18 т/га или 24,2-27,3 % к контролю. This work presents the results of studying the influence of pre-planting seed cultivation on hemp plants in order to improve the cultivation technology. The implementation of the studied drugs had a positive effect on the germinating power, germination and yield of plants. In laboratory conditions there was a significant increase in seed germination when using drugs Albit, TPS (liquid paste) and BTU Biocomplex 5.0 and 7.2 % for the variety Vera in the use of drugs TMTD, VSK and BTU Biocomplex – 5.2 and 5.0 %, respectively in the variety Nadezhda. In the field conditions, the germination rate increased by 4.2-5.6 % in the Vera variety and 1.8-8.5 % in the Nadezhda variety compared to the control. Over the years of research, the yield of hemp seeds, as a result of the use of disinfectants for all options of the experiment, changed on the Vera variety in the range of 0.78-0.96 t/ha and 0.66-0.84 t/ha on the Nadezhda variety. The greatest increase in yield on the Vera variety was noted in the options with pre-planting cultivation of seeds with Bunker, VSK, Lignohumate and Albit, TPS. On the Nadezhda variety, the maximum yield of seeds was set on options with cultivation with Benorad, SP, Bunker, VSK and Albit, TPS, the yield increase was 0.16-0.18 t/ha or 24.2-27.3 % to control.

scholarly journals Effects of Different Priming Treatments on Seed Germination Properties, Yield Components and Grain Yield of Lentil (Lens culinaris Medik.)

2015 ◽  
Vol 43 (1) ◽  
pp. 153-158 ◽  
Author(s):  
Faruk TOKLU
Keyword(s):  
Seed Germination ◽  
Grain Yield ◽  
Yield Components ◽  
Germination Rate ◽  
Seedling Emergence ◽  
Yield Component ◽  
Field Conditions ◽  
Distilled Water ◽  
Peg 6000 ◽  
Positive Effects

An experiment was conducted under laboratory and field conditions in order to evaluate the effects of different priming treatments, specifically KNO3 (1%), KCl (2%), KH2PO4 (1%), ZnSO4 (0.05%), PEG-6000 (20%), IBA (100 ppm), Mannitol (4%), GA3 (100 ppm) and distilled water, on seed germination properties and several agro-morphological plant characteristics of red lentil. Seeds not primed were used as a control. GA3 treatment increased shoot length. The control (non-primed seeds) treatment resulted in increased seedling root number and length. Distilled water, ZnSO4 and control treatments increased germination rate and percentage. In the pot experiments, GA3 treatment increased plant height and seedling emergence rate, whereas KCl treatment improved the number of nodules, as well as root and shoot dry weight when compared to the control. ZnSO4 treatment increased yield components and grain yield in field conditions. The results of this study showed that ZnSO4, GA3 and PEG-6000 seed priming treatments may be useful tools due to their positive effects on germination rate, germination percentage, yield component and grain yield of lentil.

scholarly journals Suggestions on increasing the germination seeds of pasture fodder plants

2021 ◽  
Vol 264 ◽  
pp. 04033
Author(s):  
Bakhadir Mirzaev ◽  
Farmon Mamatov ◽  
Bakhtiyor Tulaganov ◽  
Amir Sadirov ◽  
Rustam Khudayqulov ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seed Production ◽  
Germination Rate ◽  
Mechanical Damage ◽  
Forage Plants ◽  
Fodder Plants ◽  
Forest Belts ◽  
Seed Crops ◽  
And Storage ◽  
Positive Effect

One of the problems in the seed production of pasture forage plants is low seed germination. Existing pasture improvement technologies and technical means for seed production, harvesting, post-harvest handling, and storage of pasture forage plants are analysed. Suggestions for improving seed germination have been developed: it is advisable to place the seed crops between the forest belts; to improve seed germination, it is necessary to make a preliminary harvest of seed crops with spreading the mass on the stubble; the mechanised collection of seed heaps using a rotary mower with an active heap separator increases the germination rate by reducing mechanical damage to the seeds and enriching the soil with organic matter; the seed sowing process has a positive effect on the germination rate of the seed produced, in addition to reducing cleaning costs.

scholarly journals A Comparative Study of Composts Prepared from Various Organic Wastes Based on Biological and Chemical Parameters

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 869
Author(s):  
Monika Jakubus
Keyword(s):  
Heavy Metals ◽  
Seed Germination ◽  
Root Growth ◽  
Comparative Study ◽  
Organic Waste ◽  
Plant Root ◽  
Germination Rate ◽  
Macro And Micronutrients ◽  
Materials Used ◽  
Positive Effect

One of the principles of the circular economy requires the effective recycling of organic waste, especially since its volume is increasing from year to year. Therefore, one of the best solutions to solve this problem is the composting of organic waste. This paper presents the results of a comparative study of 10 different composts in terms of their quality. The composts varied with regard to waste materials used for composting, the adopted composting method, and the degree of compost maturity. Both biological (seed germination rate and intensity of plant root growth) and chemical methods (contents of macro- and micronutrients, presence of heavy metals, as well as the quality and quantity of humus compounds) were applied to evaluate the fertilisers, providing comprehensive characteristics of individual composts. It was found that composts prepared on the basis of sewage sludge had the highest contents of macro- and micronutrients as well as heavy metals. In addition, these composts contained the greatest amounts of humic substances, although these were of low quality. These composts also strongly inhibited seed germination and plant root growth. The least desirable chemical composition was found for the composts based on yard trimmings and household wastes prepared in home composters. These composts contained good quality humus compounds and had a positive effect on seed germination and plant root growth.

AGROCHEMICAL REGULATORY INDICATORS OF MINERAL NUTRITION OF SPRING WHEAT IN THE FOREST STEPPE OF WESTERN SIBERIA

2021 ◽  
pp. 5-17
Author(s):  
N.V. GOMAN ◽  
◽  
I.A. BOBRENKO ◽  
V.V. POPOVA ◽  
A.A. GAIDAR
Keyword(s):  
Spring Wheat ◽  
Mineral Nutrition ◽  
Maximum Yield ◽  
Chelating Agent ◽  
Forest Steppe ◽  
Copper Chelate ◽  
Yield Increase ◽  
Sowing Seed ◽  
Copper Chelates ◽  
Positive Effect

The authors studied the influence of different methods of using micronutrient fertilizers on the yield of spring wheat grain and established standard agrochemical indicators of mineral nutrition on the grassland-chernozem soil of the Omsk region. Use was made of helated micronutrient fertilizers (zinc and copper). Chelated micronutrient fertilizers are an organic complex of a microelement with a chelating agent, in which the microelement is freely absorbed by the plant. The advantages of chelated micronutrient fertilizers are an increase in the availability of trace elements, because these compounds are entirely supplied to the leaf during foliar feeding or during pre-sowing treatment of seeds, protection against the formation of insoluble, inaccessible, economical consumption. The experiment established that the use of zinc and copper chelates in the cultivation of spring wheat in the forest-steppe conditions of the Omsk region is effective. The best rate of zinc and copper for pre-sowing seed treatment is 200 g/t. For foliar top dressing in the tillering phase, the best rate of zinc chelate is 20 g/ha, the most effective top dressing is copper chelate at a rate of 10 g/ha, as it is less expensive in terms of the amount of the applied product. Optimizing spring wheat nutrition by using zinc and copper chelates by foliar feeding of plants in the phase of stemming provided an average increase in yield from 0.03 to 0.16 t/ha of grain (1.4–7.3% compared to control). Experiments revealed a positive effect of zinc chelate in this phase of the yield development, when zinc was used at a rate of 20 g/ha, the greatest yield increase was obtained 0.14 t/ha (2.20 t/ha in control), when using copper chelate the maximum yield was obtained at a rate of 20 g/ha. To obtain a ton of yield in the best version of Zn200, spring wheat required: N – 35.7 kg, P2О5 – 21.9 kg, K2О – 22.6 kg, Zn – 47.56 g, Cu – 5.91 kg. When treating Cu200, the removal of nutrients amounted to: N – 33.9 kg, P2О5 – 21.8 kg, K2О – 22.1 kg, Zn – 54.03 g, Cu – 4.80 g. When carrying out foliar top dressing in the tillering phase of Zn20, the removal of nutrients from a ton of crop yield amounted to: N – 35.4 kg, P2О5 – 23.4 kg, K2O – 23.4 kg, Zn – 49.7 g, Cu – 4.87 g; in the Cu10 variant it was required: N – 34.3 kg, P2O5 – 22.5 kg, K2O – 23.6 kg, Zn – 52.9 g, Cu – 4.36 g. Foliar dressing in the booting phase at a rate of Zn20 was characterized by the following per-ton removal: N – 34.6 kg, P2О5 – 25.3 kg, K2О – 24.9 kg, Zn – 65.0 g, Cu – 5.13 g, treatment with copper chelates Cu20, the removal of nutrients amounted to: N – 34.7 kg, P2О5 – 24.4 kg, K2O – 25.9 kg, Zn – 61.1 g, Cu – 6.4 g. The element utilization coefficients from the soil (EUC) accounted for: nitrogen – 87%, phosphorus – 8.0%, potassium – 6.0%, zinc – 7.0%, copper – 2.0%.

scholarly journals Effect of light quality on Tabebuia rosea seed germination

2014 ◽  
Vol 20 (2) ◽  
pp. 191
Author(s):  
Sofía Basto ◽  
Claudia Ramírez
Keyword(s):  
Seed Germination ◽  
Light Quality ◽  
Germination Rate ◽  
Germination Capacity ◽  
Germination Speed ◽  
Tabebuia Rosea ◽  
Germination Value ◽  
Positive Effect ◽  
Effect Of Light ◽  
Peak Value

Tabebuia rosea germination capacity and rate have been examined under light and dark conditions. However, seeds responses to light quality, in particular to short and mid-wavelengths, are not well known. We hypothesized that short wavelengths would have a positive effect on rosea germination. The effects of short, mid and long-wavelengths on germination capacity, rate (germination rate index, germination rate R50, a devised index of germination rate R50´ and peak value), mean daily germination and germination value were evaluated. Light quality had little effect on germination capacity; it was reduced only in darkness. Seeds under short and mid-wavelengths germinated faster (germination rate) than under any other light treatments. We concluded that althoughlt T. rosea seeds respond to all light quality treatments, the short and mid-wavelengths are the cue for increasing germination speed. For synchronizing germination, short and mid-wavelengths transmitted by red cellophane paper can be used as a pre-germinative treatment for restoration and silvicultural purposes.

scholarly journals Efficacy of Different Insecticides against Rice Leaf Folder (Cnaphalorosis medinalis) Under Field Conditions

2020 ◽  
Vol 8 (2) ◽  
pp. 211-215
Author(s):  
Abdul Samad Soomro ◽  
Shabana Naz Mazari ◽  
Muhammad Haroon Hulio ◽  
Junaid Ahmed Soomro ◽  
Ghulam Qadeer Junejo
Keyword(s):  
Insect Pest ◽  
Maximum Yield ◽  
Field Conditions ◽  
Leaf Damage ◽  
Yield Losses ◽  
Pest Population ◽  
Yield Increase ◽  
Flag Leave ◽  
Rice Leaf ◽  
Rice Leaf Folder

The experiment was conducted at the field of Rice Research Institute Dokri, Larkana, Pakistan to evaluate the efficacy of different insecticides against Rice Leaf folder (Cnaphalocrosis medinalis) under field conditions, different insecticides were applied on recommended dose. The experiment was conducted in RCBD design with 3 Replications and 5 Treatments. The leaf damage and insect pest population were observed before spray and 1,3,5,7 and 14 days respectively. The results shown that all the treated plots reduced damage minimized insect pest population and increased yield at significant level compare to control. Minimum damage of leaves was recorded in T-03 Belt 480SC (3.76%) leaves/Plant compare to T-05 Control (28.96%) leaves/plant. The results revealed that the 1st application reduced population at significant level up to seven days but population started rebuilding among all treated plots Maximum control was observed in T-03 Notice 0.22/Plant on 5-DAA & 0.24/Plant on 7-DAA. Similarly, the 2nd application also produced desirable results against Rice leaf folder population at significant level among all treated plots except control plots. Maximum controlled was observed in T-3 Belt 480SC, 0.24, 0.5 and 0.54/plant in 5-DAA, 7-DAA and 14-DAA respectively. Maximum yield increase in T-03 Belt 480SC (20.47%), followed by T-01 Notice (19.21). Results shown that the pest appearance the time of booting caused more damage to flag leave, at the time of flowering reduced gain filling and ultimately yield losses were observed.

scholarly journals THE EFFECT OF CUPULE REMOVAL AND SEED HYDRATION ON THE GERMINATION OF TRIPSACUM DACTYLOIDES SEEDS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1118c-1118
Author(s):  
Jennifer Heisinger ◽  
Rick Savage ◽  
Dyremple Marsh ◽  
Fred Hassien
Keyword(s):  
Seed Germination ◽  
Ethylene Glycol ◽  
Germination Rate ◽  
Germination Percentage ◽  
Field Conditions ◽  
Distilled Water ◽  
Tripsacum Dactyloides ◽  
Stand Establishment ◽  
Normal Field ◽  
Eastern Gamagrass

The germination percentage of eastern gamagrass under normal field conditions ranges from 5 to 10%. These rates are considered low and methods to improve stand establishment in this species are necessary, Studies were initiated to determine if cupule removal and seed hydration were effective in improving the germination percentage of eastern gamagrass. Seeds from which the cupules were removed were incubated for 30 days at 5° C in 100% ethylene glycol (EG). Control were seeds incubated in distilled water. At 12, 18, 24 and 30 days after the start of incubation, seeds from each group were removed and subjected to rapid warming at 25 - 27° C. Cupule removal significantly increased seed germination by as much as 55% over the control. Seeds with cupule removed and incubated in EG had a 65% germination rate,

scholarly journals In-vitro Seed Germination Biology of Milicia Excelsa Population Collected from Benchi-Maji Zone, South Western Ethiopia

2020 ◽  
Author(s):  
MOHAMMED ADEFA SEID ◽  
Yigardu Mulatu ◽  
Agena Anjulo ◽  
Semaigzer Ayalew ◽  
Marshet Nigatu ◽  
...  
Keyword(s):  
Seed Germination ◽  
Tap Water ◽  
Germination Rate ◽  
Germination Percentage ◽  
Hot Water ◽  
Laboratory Conditions ◽  
Southwestern Ethiopia ◽  
Micro Propagation ◽  
Milicia Excelsa

Abstract Background: In Ethiopia, species used for timber production are limited to few species. So, it is becoming necessary to find innovative ways of maintaining and improving the genetic quality of species such as Milicia excelsa by domesticating them into a wider scale of ecological and social environment. Hence, the main objective of this study was to investigate the seed germination biology and behavior of Milicia excelsa under in-vitro laboratory conditions so as to promote the domestication and establishment of seed production areas (SPA) in-situ. Methods: Seeds collected from Benchi district of Benchi-Maji zone of southwestern Ethiopia were subjected to germination biology in-vitro to determine the germination responses of M. excelsa seeds under laboratory conditions. So, a total of 1200 seeds were randomly selected, treated and prepared using four treatments procedures with six replications for paper method and 3 replications for sand method, and tested using paper methods in CRD design. So, 600 seeds were tested using paper and sand methods each where 25 seeds were tested for each replication in paper and 50 seeds for each replication in sand method. The germination process was lasted between 19 March 2020 and 15 May 2020. Result: The mean germination percentage of seeds of M. excelsa was noticed to be lower than 20%. This is below the expected (45%) germination rate of mature and healthy seed lot. Overall, seeds that were not treated using any pre-sowing treatments has shown relatively better germination percentage (19%) followed by seeds rubbed by hand (15%). Analysis of one-way t-test shows that the effects untreated (control –T1) and rubbing by hand treatments (T4) is significant at p < 0.05 compared to the effects of the other pre-sowing treatments (T2- seeds only washed with normal tap water, and T3- seeds washed and soaked in hot water for 15 minutes) on the germination capability of seeds of M. excelsa . However, no significance difference was observed between control (T1) and hand scarification (T2). Conclusions: The average germination of M. excelsa seeds combined for all treatments is lower than 20% which is lower germination when comparing with other similar research reported in other countries. Therefore, it required to include and test other pre-sowing treatments including tissue culture micro-propagation of seeds to maximize the germination of M. excelsa seeds helping to get enough seedlings required for the domestication project.

scholarly journals Application and use of sulphuric acid pretreatment to improve seed germination of three acacia species

REFORESTA ◽  
2017 ◽  
pp. 1 ◽  
Author(s):  
Abdenour Kheloufi ◽  
Lahouaria Mounia Mansouri ◽  
Faiza Zineb Boukhatem
Keyword(s):  
Seed Germination ◽  
Sulphuric Acid ◽  
Germination Rate ◽  
Germination Percentage ◽  
Water Control ◽  
Acid Pretreatment ◽  
Acacia Species ◽  
Negative Effect ◽  
Mean Time ◽  
Positive Effect

The experiments were led to study the effect of pretreatments and their duration on germination behavior of three Acacia species A. cyanophylla Lindl., A. farnesiana L. and A. decurrens Willd. by analyzing three parameters (GP: germination percentage; MGT: germination mean time (days) and GRI: germination rate index) for various times of incubation (5, 10 and 15 days) in Petri dishes. Pre-sowing treatment included immersion in concentrated sulphuric acid for 60, 90 and 120 minutes. The sowing in distilled water (Control) had no positive effect on the germination induction. Generally, the seed pretreatments were very useful to improve germination. Time of immersion significantly (P < 0.0001) affected GP, MGT and GRI in all species. Increasing the duration of sulphuric acid immersion (from 60 to 120 min) improved the germination percentages for A. cyanophylla and A. farnesiana seeds to (98% and 99%), respectively. However, increasing this duration had a negative effect on A. decurrens seed germination, reducing the final germination percentage from 97% at 60 minutes of immersion to 43% at 120 minutes.

scholarly journals Single and Combined Salinity and Heat Stresses Impact Yield and Dead Pericarp Priming Activity

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1627
Author(s):  
Bupur Swetha ◽  
Jeevan R. Singiri ◽  
Nurit Novoplansky ◽  
Rohith Grandhi ◽  
Jansirani Srinivasan ◽  
...  
Keyword(s):  
High Temperature ◽  
Seed Germination ◽  
Germination Rate ◽  
Special Focus ◽  
Maternal Environment ◽  
Seedling Performance ◽  
The Face ◽  
Set Up ◽  
Priming Activity ◽  
Positive Effect

In the face of climate change and the predicted increase in the frequency and severity of abiotic stresses (e.g., hot spell, salinity), we sought to investigate the effect of salinity (S), short episodes of high temperature (HS) and combination of salinity and high temperature (SHS), at the reproductive phase, on yield with a special focus on the properties of dead pericarps of Brassica juncea. Three interval exposures to HS resulted in massive seed abortion, and seeds from salt-treated plants germinated poorly. Germination rate and final germination of B. juncea seeds were slightly reduced in the presence of salt and SHS pericarp extracts. All pericarp extracts completely inhibited seed germination of tomato and Arabidopsis, but removal of pericarp extracts almost fully restored seed germination. Heat and salinity profoundly affected the accumulation of phytohormones in dead pericarps. Combined stresses highly reduced IAA and ABA levels compared with salt, and enhanced the accumulation of GA1, but abolished the positive effect of salt on the accumulation of GA4, JA and SA. Interestingly, pericarp extracts displayed priming activity and significantly affected seedling performance in a manner dependent on the species and on the origin of the pericarp. While control pericarps improved and reduced the seedlings’ performance of autologous and heterologous species, respectively, pericarps from salt-treated plants were harmless or improved heterologous seedling performance. Thus, the strategy employed by the germinating seed for securing resources is set up, at least partly, by the mother plant in conjunction with the maternal environment whose components are stored in the dead maternal organs enclosing the embryo.

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