scholarly journals Effect of osmopriming on germination of rice seed

2016 ◽  
Vol 41 (3) ◽  
pp. 451-460 ◽  
Author(s):  
MN Hasan ◽  
MA Salam ◽  
MMI Chowdhury ◽  
M Sultana ◽  
N Islam
Keyword(s):  
Root Length ◽  
Seed Quality ◽  
Growth Parameters ◽  
Field Capacity ◽  
Dry Mass ◽  
Germination Percentage ◽  
Shoot Length ◽  
Rice Seed ◽  
Germination Time ◽  
Mean Germination Time

The experiment was conducted at the Seed Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from September to October, 2011 to study the effect of chemical priming of seed on germination and growth of rice seedling cv. BRRI dhan 29. Seeds were soaked in 3% and 5% solutions of CaCl2, ZnSO4 and KCl for 24, 30, 36, 42, 48, 54, 60 hours, respectively. A control was maintained where seeds were subjected to no priming treatment. The experiment was laid out in a Completely Randomized Design with three replications. Primed seeds were tested for germination and vigour on sandy soil media (60:40) in petridish under field capacity. Seed quality tests included mean germination time, shoot length, shoot dry mass, root length and root dry mass. The results revealed that priming treatments had significant influence on germination and all the growth parameters of rice seedlings. Priming with 3% ZnSO4 for 30 hours showed the highest germination percentage and the lowest mean germinaion time. Priming with 5% KCl for 54 hours showed the highest root length while 5% of the same solution for 24 hours showed the highest root dry mass. On the contrary, seeds having no priming treatment showed the lowest values for germination, vigour index, shoot length,shoot dry mass, root length and root dry mass and the highest mean germination time. The present study concludes that rice seed cv. BRRI dhan29 could be primed with 3% ZnSO4 solution for 30 hours for improving germination and seedling growth.Bangladesh J. Agril. Res. 41(3): 451-460, September 2016

scholarly journals Effect of Osmopriming of Boro Rice Seeds on Field Establishment of Seedlings

2013 ◽  
Vol 1 (4) ◽  
pp. 228-232 ◽  
Author(s):  
P. K. Roy ◽  
M. A. R. Sarkar ◽  
S. K. Paul ◽  
A. Dey
Keyword(s):  
Root Length ◽  
Dry Weight ◽  
Shoot Length ◽  
Rice Seed ◽  
Germination Time ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Vigor Index ◽  
Mean Germination Time ◽  
Germination Vigor

An experiment was conducted at the Seed Laboratory of the Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from January to April 2012 to study the effect of osmopriming of Boro rice seed (cv. BRRI dhan29). Seeds were soaked in 1%, 3% and 5% solutions of ZnSO4, KCl and CaCl2 for 24 hours, respectively, with 30 hours incubation at 35°C temperature. Seed quality tests such as percent germination, mean germination time, vigor index, shoot length, root length, shoot dry weight and root dry weight of rice seedlings were measured for all treatments. Population m-2 was also calculated to investigate the field establishment of primed seeds. The highest germination, vigor index, population m-2, shoot length and shoot dry weight at 15 and 30 DAS, root length at 15 DAS, root dry weight at 15 and 30 DAS and the lowest mean germination time was observed from priming of seeds with 3% ZnSO4. Exceptionally, priming with 3% CaCl2 showed the highest root length at 30 DAS. On the contrary, 3% and 5% CaCl2 priming treatment showed the lowest germination, vigor index, population m-2, shoot length and shoot dry weight at 15 and 30 DAS, root length at 15 DAS, root dry weight at 15 and 30 DAS and the highest mean germination time. It can be concluded that rice seed (cv. BRRI dhan29) can be primed with 3% ZnSO4 solution for improving germination and field establishment of rice seedlings.DOI: http://dx.doi.org/10.3126/ijasbt.v1i4.9131  Int J Appl Sci Biotechnol, Vol. 1(4): 228-232

scholarly journals Effect of Hydropriming on Field Establishment of Seedlings obtained from Primed Seeds of Boro Rice cv. Brri Dhan29

2013 ◽  
Vol 1 (4) ◽  
pp. 220-223 ◽  
Author(s):  
A. Dey ◽  
M. A. R. Sarkar ◽  
S. K. Paul ◽  
P. K. Roy
Keyword(s):  
Seed Quality ◽  
Growth Parameters ◽  
Dry Weight ◽  
Rice Seed ◽  
Rice Seedlings ◽  
Germination Time ◽  
Vigor Index ◽  
Mean Germination Time ◽  
Germination Vigor ◽  
Boro Rice

An experiment was conducted at the Seed Laboratory of the Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from January to April 2012 to study the effect of hydropriming on field establishment of seedlings obtained from primed seeds of Boro rice cv. BRRI dhan29. Seeds were soaked in water for 0, 24, 30, 36, 42, 48, 54 and 60 hours. The incubation period was 30 hours at 35°C temperature. Seed quality viz. percent germination, mean germination time, vigor index, shoot length, root length, shoot dry weight and root dry weight of rice seedlings were measured. Plant population m-2 also recorded to understand the field establishment of primed seeds. It was observed that priming treatments had significant effect on germination and other growth parameters of rice seedlings. The highest germination, vigor index, population m-2, length of shoot and root and their weight were found at 15 and 30 DAS. The lowest mean germination time was observed from hydropriming of seeds with 30 hours soaking. On the contrary, no priming treatment showed the lowest germination, vigor index, population m-2, and the highest mean germination time. The study concludes that BRRI dhan29 rice seed could be primed for 30 hours as hydropriming improves germination and field establishment of rice seedlings of Boro rice cv. BRRI dhan29.DOI: http://dx.doi.org/10.3126/ijasbt.v1i4.9102  Int J Appl Sci Biotechnol, Vol. 1(4): 220-223

scholarly journals A, The EXPLORING THE ALLELOPATHIC AND HERMETIC EFFECT OF KHATAMI (Altheae officinalis) ON EMERGENCE AND SEEDLING GROWTH OF RADISH (Raphanus sativus)

2021 ◽  
Vol 27 (3) ◽  
pp. 321-330
Author(s):  
Bilal Ahmad Khan
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Root Length ◽  
Raphanus Sativus ◽  
Germination Percentage ◽  
Shoot Length ◽  
Fresh Weight ◽  
Germination Time ◽  
Shoot Fresh Weight ◽  
Mean Germination Time

Abstract Crop plants release biochemicals into surrounding environment that help in obtaining maximum yield of crop by acting bioherbicide at high concentration and plant growth hormone at low concentration. Therefore, this study was planned at Department of Agronomy in Weed Science Laboratory, University of Agriculture Faisalabad during Winter 2018 to evaluate the hermetic effects of Althaea officinalis L. (khatami) on vegetable crop Radish (Raphanus sativus) The experiments were laid out under completely randomized design (CRD) having three replications. The aqueous extracts of A. officinalis L. were used on radish different concentrations (2.5%, 5%, 10%, 20%, 40% and 80%). Data regarding seed germination and seedling growth (shoot length, root length, shoot fresh weight, root dry weigh) of radish were recorded using standard procedures. Results Reveals that the aqueous extract of A. officinalis at higher concentration (80%) act as bioherbicide and produced inhibitory effects on R. sativus result in Maximum time to 50% germination (4.68 days) and mean germination time (9.05 days) while minimum germination index (3.60), germination percentage (85.00%), shoot length (42.4 cm), root length (25.90 cm), shoot fresh weight (53.30 g) and root fresh weight (13.30 g). While at lower concentration (10%) it shows hermetic effect and produce maximum germination percentage (100.00%), shoot length (58.2 cm), root length (52.0 cm), shoot fresh weight (90.00g), root fresh weight (26.30 g) minimum time to complete 50% germination (3.36 days), germination index (6.00%) and mean germination time (5.73 days) growth. In A. officinalis among different phenolic compound minimum Syringic acid (0.60%) and maximum Quercetion (12.3%) compound was found. Therefore, it was concluded from this study that aqueous extract of officinalis can be used as growth promoter at lower concentration while at higher concentration for environmentally friendly control of weeds.

scholarly journals Germination Response of MR 219 Rice Variety to Different Exposure Times and Periods of 2450 MHz Microwave Frequency

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Daryush Talei ◽  
Alireza Valdiani ◽  
Mahmood Maziah ◽  
Mohammad Mohsenkhah
Keyword(s):  
Seed Germination ◽  
Root Length ◽  
Germination Rate ◽  
Rice Variety ◽  
Microwave Frequency ◽  
Germination Percentage ◽  
Rice Seed ◽  
Germination Time ◽  
Primary Shoot ◽  
Mean Germination Time

Germination is a key process in plants' phenological cycles. Accelerating this process could lead to improvment of the seedling growth as well as the cultivation efficiency. To achieve this, the effect of microwave frequency on the germination of rice seeds was examined. The physiological feedbacks of the MR 219 rice variety in terms of seed germination rate (GR), germination percentage (GP), and mean germination time (MGT) were analyzed by exposing its seeds to 2450 MHz of microwave frequency for one, four, seven, and ten hours. It was revealed that exposing the seeds to the microwave frequency for 10 hours resulted in the highest GP. This treatment led to 100% of germination after three days with a mean germination time of 2.1 days. Although the other exposure times of microwave frequency caused the moderate effects on germination with aGPa3ranged from 93% to 98%, they failed to reduce theMGTa3. The results showed that ten-hour exposure times of microwave frequency for six days significantly facilitated and improved the germination indices (primary shoot and root length). Therefore, the technique is expected to benefit the improvement of rice seed germination considering its simplicity and efficacy in increasing the germination percentage and rate as well as the primary shoot and root length without causing any environmental toxicity.

scholarly journals A, The Identifying the hermetic potential of khatami (Altheae officinalis) emergence and seedling growth of wild Pea (Pisum sativum subsp. elatius).

2021 ◽  
Vol 27 (3) ◽  
pp. 331-340
Author(s):  
Bilal Ahmad Khan ◽  
Rizwan Maqbool ◽  
Sumbal Parvez ◽  
Sumbal Parvez ◽  
Muhammad Ather Nadeem ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Aqueous Extract ◽  
Seedling Growth ◽  
Root Length ◽  
Germination Percentage ◽  
Shoot Length ◽  
Fresh Weight ◽  
Germination Time ◽  
Shoot Fresh Weight ◽  
Mean Germination Time

Crop plants release biochemicals into surrounding environment that help in obtaining maximum yield of crop by acting bioherbicide at high concentration and plant growth hormone at low concentration. Therefore, this study was planned at Department of Agronomy in Weed Science Laboratory, University of Agriculture Faisalabad during Winter 2018 to evaluate the allelopathic effects of A. officinalis on weed Wild Pea (Pisum sativum subsp. elatius). The experiments were laid out under completely randomized design (CRD) having three replications. The aqueous extracts of C. verum. were used on radish and wild pea seeds at different concentrations (2.5%, 5%, 10%, 20%, 40% and 80%). Data regarding seed germination and seedling growth (shoot length, root length, shoot fresh weight, root dry weigh) of weed were recorded following standard procedures. Results Reveals that the aqueous extract of A. officinalis at higher concentration (80%) act as bioherbicide and produced inhibitory effects on R. sativus result in Maximum time to 50% germination (6.70 days) and mean germination time (10.00 days) while minimum germination index (4.70), germination percentage (66.60%), shoot length (49.8 cm), root length (8.16 cm), shoot fresh weight (10.00g) and root fresh weight (10.361g). While at lower concentration (10%) it shows hermetic effect and produce maximum germination percentage (90.00%), shoot length (84.7 cm), root length (66.2 cm), shoot fresh weight (82.20 g), root fresh weight (58.30 g) and germination index (8.21%) minimum time to complete 50% germination (4.33 days) and mean germination time (5.49 days) growth. In A. officinalis among different phenolic compound minimum Syringic acid (0.60%) and maximum Quercetion (12.3%) compound was found. Therefore, it was concluded from this study that aqueous extract of officinalis can be used as growth promoter at lower concentration while at higher concentration for environmentally friendly control of weeds.

scholarly journals Development of priming technology for enhanced planting value of seeds in kabuli chickpea (Cicer arietinum L.)

2021 ◽  
Vol 13 (2) ◽  
pp. 735-743
Author(s):  
Umesh Hiremath ◽  
Basave Gowda ◽  
Lokesh G.Y . ◽  
B. S. Ganiger
Keyword(s):  
Root Length ◽  
Seed Quality ◽  
Dry Weight ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Shoot Length ◽  
Growth And Yield ◽  
Seedling Vigour ◽  
Seedling Length ◽  
Vigour Index

The continuous rise in global population demands more food production under limited land resources accompanied by climate change. More oversupply of quality seeds to meet ever-growing food demand is a highly challenging task. Seeds with low vigour level limit the growth and yield of crops at varied field conditions. Hence, an experiment was conducted to develop a technique for the fast and homogeneous growth of kabuli chickpea seeds. The priming treatments evaluated in the present study enhanced the various seed quality parameters of kabuli chickpea significantly when compared to control. Hydro-priming for 4 hours (at 20°C) and air drying for 72 hours showed better results compared to rest of the treatments both in fresh seeds which recorded higher first count (66.38%), germination (92.50%) root length (11.85 cm), shoot length (6.16), mean seedling length (18.01), dry seedling weight (747 mg), seedling vigour index-I (1665), higher speed of emergence (0.3992) and old seeds with higher first count (61.88%), germination (74.13%) root length (8.15 cm), shoot length (5.85 cm), mean seedling length (14.00 cm), seedling dry weight (611 mg), seedling vigour index-I (1056), higher speed of emergence (0.3814). The aged seeds have recorded 29 % increase in germination percentage in contrast to 8 percent increases in fresh seeds. Kabuli chickpea seeds could be subjected to hydropriming, an affordable, alternative, and eco-friendly technique for improving seed and seedling vigour of kabuli chickpea.

scholarly journals Evaluation of Seed Quality Attributes of Sorghum Germplasm Accessions from Eastern, Coastal and Nyanza Regions, Kenya

2020 ◽  
Vol 9 (3) ◽  
pp. 9
Author(s):  
C. W. Muui ◽  
R. M. Muasya ◽  
S. Nguluu ◽  
A. Kambura
Keyword(s):  
Food Security ◽  
Seed Quality ◽  
Germination Percentage ◽  
Seed Vigour ◽  
Subsistence Farmers ◽  
Germination Time ◽  
Vigour Index ◽  
Mean Germination Time ◽  
Handling Practices ◽  
Germplasm Accessions

Sorghum (Sorghum bicolor L.) is an important cereal crop in Kenya. Despite the crops importance, the yields attained by farmers in Eastern, Coastal and Nyanza regions of Kenya remain low. Access to good quality seeds of sorghum is one of the constraints facing the subsistence farmers. Good quality seed is important for increasing yield to attain food security. The aim of this study was to evaluate quality attributes of the seed used by farmers. A total of 108 germplasm accessions were obtained from 76 farmers. The seeds were tested for time and percentage of germination, seed vigour index, shoot and root dry weight. Data collected was subjected to analysis of variance. Means were separated using Fisher’s Least Significance Difference test at p ≤ 0.05. Seed samples of 26 accessions attained germination percentage below stipulated standards by Seeds and Plant Varieties Act CAP 326. Majority of seeds showed longer mean germination time with only nine accessions germinating in less than ten days. Seed vigour index was relatively high in most of the accessions, while biomass accumulation varied from high to very low among accessions. Though most of the seeds attained a high germination percentage, about 92% of seeds showed longer mean germination time. The environmental conditions in the fields, pre and post harvest handling practices impact on the seed quality hence the wide variability in germination percentage, germination time, seed vigour index and dry matter accumulation. Therefore the need to improve quality of seeds used by subsistence farmers by providing extension services on best pre and post harvest handling practices. Increasing production of sorghum in these regions will contribute significantly towards realizing food security. Further analysis could be carried out on genetic and sanitary quality aspects of the seeds planted by farmers in Eastern, Nyanza and Coastal regions.

scholarly journals The Effect of Stage of Harvest and Storage on the Seed Quality of Chickpea (Cicer arietinum L.)

1970 ◽  
Vol 44 (3) ◽  
pp. 303-310
Author(s):  
A Khatun ◽  
MAH Bhuiyan ◽  
MM Ud-deen
Keyword(s):  
Moisture Content ◽  
Root Length ◽  
Laboratory Experiments ◽  
Seed Quality ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Harvesting Stage ◽  
And Storage

Laboratory experiments were carried out to determine the effects of harvesting stages on the seed quality of chickpea. Chickpea seed of three varieties (BARI Chola-5, BARI Chola-6 and BARI Chola-8) were collected at three harvestings times i.e. from three different times at 7 days interval prior to harvesting, viz. i) when the pods were yellowish with a few yellow greens (H1 stage), ii) when most of the pods were light brown with a few yellow (H2 stage), and iii) when all the pods were completely brown and dry (H3 stage). Significant variation was observed in three varieties of chickpea for all the parameters studied except vigour-I. The highest germination percentage, root length, shoot length, root plus shoot length and vigour-II was observed in BARI Chola-5 which was significantly higher over BARI Chola-8. Dry weight was found to be significantly higher in BARI Chola-8 which was identical to BARI Chola-6. Moisture content was significantly higher in BARI Chola-8. Seed collected at the stage when most of the pods were light brown with a few yellow (H2 stage) recorded the highest germination percentage, dry weight, vigour-I and root length. Pods (H1 stage) gave the highest moisture content in seeds. BARI Chola-5 seeds recorded the highest germination at H2 stage. Interaction effects of varieties and harvesting stage had non-significant effect on germination percentage, vigour-I, shoot length and vigour-II in both the years. Keywords: Chickpea, Harvesting stage, Storage, Vigour, Moisture, Germination DOI: 10.3329/bjsir.v44i3.4403 Bangladesh J. Sci. Ind. Res. 44(3),303-310, 2009  

scholarly journals Effect of PEG and mannitol to induce drought stress on seed quality and stand establishment in wheat (Triticum aestivum L.) genotypes

2021 ◽  
Vol 17 (2) ◽  
pp. 469-475
Author(s):  
S. B. Patil ◽  
Jitendra Kumar S. Hilli
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Root Length ◽  
Seed Quality ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Germination Percentage ◽  
Shoot Length ◽  
Seedling Vigour ◽  
Wheat Genotypes

An experiment was conducted to study the screening of wheat (Triticum aestivum L.) genotypes for drought tolerance under laboratory condition during2018 at Department of Seed Science and Technology, College of Agriculture, Vijayapura. The experiment was carried out in a factorial Complete Randomized Block Design with seven treatments replicated three times. Twenty six wheat genotypes were screened for drought tolerance using 0, 15, 30, 60 per cent polyethylene ethylene glycol 6000 (PEG6000) and 1, 2, 5 per cent mannitol solutions. Data were recorded on various seedling parameters like germination percentage, root length, shoot length, seedling dry weight and seedling vigour index. The seedling traits showed a decreasing trend in response to increased concentrations of PEG6000 and mannitol. Wheat genotype DBW-110 (98.70 %) and C-306 (92.50 %) were found to be the best genotype for screened based on germination percentage at 15 per cent PEG6000 and 5 per cent mannitol. Wheat genotypes HI-1620 (6.7 cm) and NIAW-3212 (4.5 cm) produced maximum root length, respectively at higher concentrations of PEG6000 and mannitol. The genotype HI-1620 (6.4 cm, @ 15 %; 5.4 cm, @ 5 % mannitol) showed maximum shoot length. The genotype HD-2733, DBW-14, DBW-88 showed highest reduction of seedling parameters observed at increase in osmotic stress condition.

scholarly journals Effect of nitrogen and plant growth regulators on seed yield per plant and seed quality parameters in brinjal (Solanum melongena L.)

2017 ◽  
Vol 9 (4) ◽  
pp. 2338-2343
Author(s):  
Arpana D. Vaja ◽  
J. B. Patel ◽  
R.N. Daki ◽  
Shital A. Chauhan
Keyword(s):  
Seed Yield ◽  
Root Length ◽  
Seed Quality ◽  
Dry Weight ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Shoot Length ◽  
Fresh Weight ◽  
Shoot Dry Weight ◽  
Vigour Index

The present investigation on effect of nitrogen [N0 (Control), N1 (50 kg N/ha), N2 (100 kg N/ha), and N3 (150 kg N/ ha)] and plant growth regulators [G0 (Control), G1 (50 ppm GA3), G2 (50 ppm NAA) and G3 (500 ppm Cycocel)] on seed yield per plant and seed quality parameters in brinjal (Solanum melongena L.) cv. GJB 3 was carried out at the Instructional Farm, Department of Agronomy, Junagadh Agricultural University, Junagadh during kharif 2015-16. The experiment was laid out in field as per randomized block design (Factorial) with three replications. The seed harvested from 16 different treatments combinations replicated thrice from the field were analyzed in the laboratory following completely randomized design (factorial) for various seed quality parameters. Application of nitrogen @ 150 kg N/ha recorded significantly (P<0.05) highest seed yield per plant, shoot fresh weight, root dry weight, shoot dry weight and vigour index – 2 (mass), while application of 100 kg N/ha resulted in significantly (P<0.05) highest germination percentage, root length, shoot length, root fresh weight and vigour index – 1 (length). Application of GA3 at 50 ppm recorded significantly the highest seed yield per plant, germination percentage, root length, shoot length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight, vigour index – 1 (length) and vigour index – 2 (mass). Among the 16 different treatment combinations, nitrogen @ 150 kg/ha and GA3 50 ppm noted the maximum seed yield per plant, shoot dry weight and vigour index – 2 (mass), while significantly the maxi-mum germination percentage, root length, shoot length, root fresh weight, shoot fresh weight and vigour index – 1 (length) were registered in treatment combination nitrogen 100 kg N/ha and GA3 @ 50 ppm. Therefore, it is advised that application of 100-150 kg of N/ha as a nitrogenous fertilizer and spray GA3 @ 50 ppm (G1) at 45 days after transplanting helps in increasing the seed yield per plant and seed quality parameters in brinjal seed production.

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