INHIBITORY EFFECT OF AQUEOUS LEAF EXTRACT OF Parthenium hysterophorus L. ON SEED GERMINATION AND SEEDLING GROWTH OF SOME CULTIVATED CROPS

Singh, Awanish Kumar

doi:10.32606/ijsr.v11.i2.00002

Cited by 4 publications

(4 citation statements)

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“…Seed germination percentage was decreased with increasing the aqueous leaves extract concentration. Similar finding was also observed by many researchers (Dongre and Singh, 2007;Dongre et al 2004;Siddiqui, et al, 2009;Singh 2019;Begum et al 2021;Singh 2021a;Singh 2021b), that germination percentage, radicle and plumule length were reduced by the leaf leachate of Ageratum conyzoides and other noxious weeds. The seed germination and seedling growth inhibition of the test plants by the leaf leachates of goat weed may be due to the inhibitory substances.…”

Section: Petri Dish Germination Bioassaysupporting

confidence: 84%

Inhibitory Effects of Goat Weed on Growth and Develpopment of Chick Pea (Cicer aeritinum L.) and Black Gram (Phaseolus mungo L.)

Singh¹

2021

Indian Journal of Scientific Research

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In present study an attempt has been made to investigate the allelopathic effects of Goat weed (Ageratum conyzoides L.) on the germination and seedling growth of chickpea and black gram. Seeds were placed in petridishes containing 10, 20, 30 and 40% leaf leachates of goat weed extracts. The germination percentage was evaluated at the end of 10th day after sowing (DAS) whereas seedling growth was evaluated at 28th day (28 DAS). The increase in leachate concentrate was associated with the increased reduction of seed germination and seedling growth. The weed leaf leachates at different concentrations reduced the seed germination, plant height, leaf numbers, leaf area and seedling dry weight of the test crop species. The inhibitory effects of the test crop were positively related to the concentration of Ageratum conyzoides weed leaf leachates. The leaf leachates of Ageratum conyzoides at 10% concentration, significantly reduced seed germination, plant height, leaf numbers, leaf area and seedling dry weight.

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Section: Petri Dish Germination Bioassaysupporting

confidence: 84%

Inhibitory Effects of Goat Weed on Growth and Develpopment of Chick Pea (Cicer aeritinum L.) and Black Gram (Phaseolus mungo L.)

Singh¹

2021

Indian Journal of Scientific Research

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“…Stearic acid and palmitic acid derivatives accounted for about 30% of the compounds, which have a strong possibility of interfering of their activity with the activity of enzymes (Tarbali et al, 2021). Singh (2021) found that all characteristics of germination and seedling growth of both studied chickpea cultivars were significantly reduced under the influence of Ageratum conyzoides leaf extract in different concentrations compared to the control.…”

Section: Germination Inhibitionmentioning

confidence: 86%

“…These phenolic compounds affect different physiological processes related to growth and development in different stages of the plant (Fu et al, 2019). It has been observed that allelopathic substances in high concentrations have an inhibitory effect and in low concentrations have a stimulating effect on seed germination and plant growth (Singh, 2021). Allelopathic plants can be widely used in organic agriculture due to their potential role in improving seed germination (Findura et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Weed Control Using Allelopathic Properties of Rapeseed Residues and Crop Management

Golmaei¹,

Petroudi²,

Mobasser³

et al. 2023

RAR

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Planting date, density and allelopathic properties are important tools of crop management in controlling weeds in crops. Allelopathy refers to any direct or indirect inhibitory or stimulating effect of one plant on another through the production and release of secondary metabolites in the environment. Two experiments performed separately, in order to investigate the effect of allelopathic properties of rapeseed residues and crop management on the control of rapeseed weeds and its yield. The first experiment was conducted during two agricultural years (2018-2019 and 2019-2020) in a factorial form of a randomized complete block design with 3 replications at the Qarakhil agricultural research station (QaemShahr). The treatments were included: planting date in 3 treatment levels (October 17, November 6 and November 26), seed rate in 3 treatment levels (3, 5 and 7 kg per hectare) and weed management in 2 treatment levels presence of weed (no control) and the absence of weed (control). The second experiment was conducted as a factorial in the form of a completely random design in three repetitions in the research laboratory of the Islamic Azad University, QaemShahr branch in 2020. The experimental treatments included weeds [wild oat (Avena fatua), darnel regrass (Lolium temulentum), phalaris (Phalaris minor)] and charlock mustard (Sinapis arvensis)) different concentrations of rapeseed root and stalk extracts (0, 25, 50, 75 and 100%). The results of the first experiment showed that, in general, the rapeseed seed yield was affected by the planting date and density, so that the rapeseed seed yield on the delayed planting date (November 26) decreased compared to the first planting date (October 17) by 49 and 59 percent, respectively in the first and second year of the experiment, and this decrease was more intense in the second year. Also, the results showed that the highest dry weight of weeds was obtained in both years at a density of three kilograms per hectare and in the cultivation of November 26 (except for the highest dry weight of wild oats that was observed in the cultivation of October 17). While the highest weight of seed yield was obtained in both crop years at a density of 7 kg per hectare. The results of the second experiment showed that the extract obtained from the root and stem of the rape plant had a negative and significant effect on the speed, percentage and inhibition of germination in all weeds. However, no significant difference was observed between the concentration of root and stem extracts at the 5% level. A significant negative linear regression relationship was observed between the concentration of the extract (root and stem) with the percentage and speed of germination. Also, a significant positive linear regression relationship was observed between inhibition percentage and extract concentration (root and stem). Therefore, the germination and seedling growth of the seeds of all three weed species had a negative reaction to the concentration of rapeseed extract, but the highest sensitivity was observed in wild oat seeds. Therefore, according to the results, rapeseed extract can be used in the biological control of weeds. In general, the results of two experiments showed that the planting date, density and rapeseed residues can be used effectively in controlling weeds in rapeseed fields.

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“…Seedling vigor was calculated by the formula given by Abdul-Baki and Anderson, (1973) and modified by Singh and Singh, (1983).…”

Section: Seedling Vigor Index (Svi)mentioning

confidence: 99%

Effect of PEG-6000 Osmoticum on Seed Germination and Seedling Growth of Lentil (Lens culinaris Medik.) Genotypes

Eesha,

Sharma,

Chaudhary

2023

IJARe

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Background: Drought, extreme temperatures, salinity, chemical toxicity and oxidative stress are such environmental stresses, that are serious threats to agriculture globally and result in the deterioration of the environment and crops. To Study the effect of drought stress on seed germination and early establishment in different crop varieties, PEG (Polyethylene Glycol) induced drought stress is the most common screening method. The species and its variety, its growing conditions and the developmental stage of the plant, as well as osmotic concentration responded differently to osmotic stress. The current study aimed to study the effect of different concentrations of PEG-6000 in eight genotypes of lentil in order to understand the management and control of drought stress-related problems in crop plants. Methods: The experimental work was conducted during 2018-2019 at the Laboratory of Botany, S.S. Jain Subodh P.G. (Autonomous) College, Jaipur to study the effect of drought stress during early growth of genotypes of Lentil (Lens culinaris Medik.) under osmotic stress. The plant material consisted of eight genotypes belonging to the macrosperma and microsperma subspecies of lentil (Lens culinaris M.). PL-4, L-4147, L-4594 and L-4596 belong to the microsperma subspecies and K-75, L-4076, DPL-15 and DPL-62 belong to the macrosperma subspecies. Result: In conclusion, due to their better values of germination percentage (GP%), germination relative index (GRI), seedling vigor index (SVI) and seedling growth under simulated drought conditions PL-4, L-4594, DPL-15 and DPL-62 stand out as the most tolerant lentil genotypes among eight species studied in this work. These genotypes showed a significant enhancement in germination percentage (%), germination relative index, seedling vigor index and seedling length under mild moisture stress. Our results confirmed that PEG-induced drought stress can be used to study the drought-tolerant species by studying a few parameters viz. germination percentage, germination relative index and, seedling vigour index, that will result in increased crop production.

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INHIBITORY EFFECT OF AQUEOUS LEAF EXTRACT OF Parthenium hysterophorus L. ON SEED GERMINATION AND SEEDLING GROWTH OF SOME CULTIVATED CROPS

Cited by 4 publications

References 0 publications

Inhibitory Effects of Goat Weed on Growth and Develpopment of Chick Pea (Cicer aeritinum L.) and Black Gram (Phaseolus mungo L.)

Inhibitory Effects of Goat Weed on Growth and Develpopment of Chick Pea (Cicer aeritinum L.) and Black Gram (Phaseolus mungo L.)

Weed Control Using Allelopathic Properties of Rapeseed Residues and Crop Management

Effect of PEG-6000 Osmoticum on Seed Germination and Seedling Growth of Lentil (Lens culinaris Medik.) Genotypes

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