scholarly journals Impact of Seed Size on the Seedling Vigour, Dry Matter Yield and Oil Content of Jatropha (Jatropha curcas L.)

2020 ◽  
Vol 12 (3) ◽  
pp. 197
Author(s):  
Aderemi I. Makinde ◽  
Kehinde O. Oyekale ◽  
David S. Daramola
Keyword(s):  
Seed Size ◽  
Dry Matter ◽  
Oil Content ◽  
Seedling Survival ◽  
Dry Matter Yield ◽  
Seedling Vigour ◽  
Yield Increase ◽  
Seedling Length ◽  
Seedling Growth Rate ◽  
Vigour Index

Seed size is a trait of the plant that affects seed germination and seedling survival. This study aims to assess the growth response of J. curcas to different seed sizes. A pot experiment was conducted to evaluate the effects of J. curcas seed sizes on the seedling vigour and seed component. The seeds were fractioned into three sizes visually into: large, medium and small and by 1000 seeds weight (SW). Seedling vigour was assessed by: germination % (G%), seedling length cm (SL), seedling vigour index, SVI, seedling growth rate, SGR, and speed of germination, SOG as well as proportion of cake, shell and oil content (OC) expressed as% of the seed. Results obtained shows that G% and the SOG were not affected by seed sizes but by other factors within the seed. However, seedling vigour expressed as SL, SVI and SGR increased significantly (P ≤ 0.05) with increase in seed sizes. Proportion of cake, shell and oil component of J. curcas seeds increased with increasing seed sizes while 60% of the seed is made up of the cake from where the oil is extracted. Dry matter yield, DMY significantly (P ≤ 0.05) increased with increase in seed size from 6.41 g/plant in large seeds to 2.61 g/plant in small seeds. There is positive and strong significant correlation between, SW and DMY (r = 0.91**), yield increase (r = 0.82**), OC (r = 0.85**), % cake (r = 0.94**). Findings revealed that larger seed had higher potential of producing vigorous plants with eventual high crop yield and higher OC.

scholarly journals Multivariate analysis of sesame genotypes under saline stress

2018 ◽  
Author(s):  
B. Priyadharshini, ◽  
M. Prakash ◽  
M. Vignesh ◽  
S. Murugan ◽  
R. Anandan
Keyword(s):  
Multivariate Analysis ◽  
Dry Matter ◽  
Germination Percentage ◽  
Sesame Oil ◽  
Saline Stress ◽  
Matter Production ◽  
Seedling Length ◽  
Resistance To Oxidation ◽  
Vigour Index ◽  
Sesame Genotypes

Sesame is notable for its rich antioxidants and sesame oil is also familiar for its resistance to oxidation. The cultivation of sesame is usually restricted under abiotic stress conditions. Hence in order to study the performance of sesame genotypes to saline stress, an experiment was conducted to screen ten ruling varieties of sesame viz., CO1, SVR1, SVPR1, VRI 1, VRI 2, TMV 3, TMV 4, TMV 5, TMV 6 and TMV 7 at five different EC levels (EC 1, 2, 3, 4 and 5). Seedling observations namely, germination percentage, speed of germination, shoot length, root length and dry matter production were recorded. Among the genotypes, it was found that under higher saline conditions (EC5), VRI 1 recorded higher seedling length (2.0 cm), vigour index I (100) and vigour index II (1.15), whereas under normal condition, TMV 4 and CO 1 performed better. In general, there was a decrease in all the seedling parameters with increased levels of salinity. With STAR software, Multivariate analysis was done and on the basis of dendrogram, five clusters were formed and the cophenotic correlation co- efficient was found highest in Control (0.912) followed by EC 2 ( 0.829).

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 Seed and fruit size affect soaking and physiological seed quality in Campomanesia adamantium?

2020 ◽  
Vol 42 ◽  
Author(s):  
Érica Fernandes Leão-Araújo ◽  
Eli Regina Barboza de Souza ◽  
Nei Peixoto ◽  
Wilhan Valasco dos Santos ◽  
Lílian Lúcia Costa ◽  
...  
Keyword(s):  
Seed Size ◽  
Seed Quality ◽  
Fruit Size ◽  
Intraspecific Variability ◽  
Confidence Bands ◽  
Transverse Diameter ◽  
Seedling Length ◽  
Seedling Growth Rate ◽  
Length Width ◽  
Total Seed

Abstract: The size of fruits and seeds can affect the seed germination process and aspects related to the vigor of the seedlings formed. Our aim was to characterize fruit and seed biometrics, evaluate the effect of seed size on soaking and the effect of seed size and temperature on the germination and vigor of Campomanesia adamantium . The fruit was evaluated to determine longitudinal diameter, transverse diameter, fresh mass and empty, full and total seed quantities. The seeds were sorted into small, medium and large classes and then measured for length, width, thickness and mass. Seeds from each class were submitted to the germination test at 25 and 30 °C. The germination and vigor (first count, germination speed index, mean germination time and seedling length) data were evaluated by analysis of variance and a means test. Seeds from each size class were weighed repeatedly during soaking. The soaking data were fit to logistic and Peleg models and best fit curves with confidence bands were constructed to compare the effect of seed size. Fruit morphology showed high intraspecific variability. Germination was not affected by seed size or test temperature. Large seeds yielded taller seedlings while the 25 °C germination temperature produced the highest seedling growth rate. The small and medium seeds showed all three phases of the soaking process. Finally, soaking was initially slower for the large seeds than for the small and medium seeds.

Influence of seed size and composition on the dry matter yield ofCenchrus ciliaris

1978 ◽  
Vol 34 (7) ◽  
pp. 848-849
Author(s):  
S. Kathju ◽  
A. N. Lahiri ◽  
K. A. Shankarnarayan
Keyword(s):  
Seed Size ◽  
Dry Matter ◽  
Dry Matter Yield

scholarly journals Effect of integrated nutrient management and spacing on seed quality parameters of black gram cv. Lbg-625 (rashmi)

2016 ◽  
Vol 8 (1) ◽  
pp. 340-345
Author(s):  
N. Amruta ◽  
P. J. Devaraju ◽  
Mangalagowri Mangalagowri ◽  
S. P. Kiran ◽  
H. P. Ranjitha ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seed Quality ◽  
Dry Weight ◽  
Quality Parameters ◽  
Black Gram ◽  
Seedling Vigour ◽  
Nutrient Levels ◽  
Planting Geometry ◽  
Seedling Length ◽  
Vigour Index

A field experiment was conducted to assess the response of nutrient levels and spacing on seed quality attributes of black gram cv. LBG-625 (Rashmi). Experimental results revealed that fertilizer application of 50:100:100 + Black gram rhizobia (250 g ha-1) + PSB- Bacillus megaterium (250 g ha-1) recorded highest test weight (39.27 g), germination (90.60%), root length (15.77 cm), shoot length (13.43 cm), mean seedling length (29.20 cm), mean seedling dry weight (57.99 mg), seedling vigour index-I (2656), seedling vigour index-II (525), total dehydrogenase activity (0.998), protein content (23.16%), field emergence (86.56 %) lowest electrical conductivity (0.813 dSm-1) were superior over other fertilizer treatments. Among the planting geometry 60 x 10 cm recorded more germination per cent (90.48 %) compared to 45 x 10 cm (87.64 %) and 30 x 10 cm (86.91 %). Interaction of nutrient levels and spacing through the application of 50:100:100 + black gram rhizobia (250 g ha-1) + PSB- B. megaterium (250 g ha-1) with planting geometry 60 x 10 cm recorded more mean seedling length (34.40 cm), mean seedling dry weight (58.30 mg),and field emergence (90.24 %) lowest electrical conductivity (0.776 dSm-1) compared to control. The application of 50:100:100 + Black gram rhizobia (250 g ha-1) + PSB- B. megaterium (250 g ha-1) with planting geometry 60 x 10 cm were considered as seed quality improvement approach in blackgram, therefore conjunctive use of inorganic fertilizers and biofertilizer may be suggested for higher seed quality parameters along with overall betterment of crop.

scholarly journals Effect of Alternaria sesami on Germination and Seedling Growth of Sesame

2021 ◽  
Author(s):  
P. Lakshmi Pravallika ◽  
S.L. Bhattiprolu ◽  
K. Radhika ◽  
M. Raghavendra
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Fungal Pathogens ◽  
Seed Quality ◽  
Sesame Seed ◽  
Artificial Infection ◽  
Seedling Vigour ◽  
Seedling Length ◽  
Vigour Index

Background: Sesame is an important oil seed crop affected by toxigenic fungal pathogens viz., Alternaria, Fusarium and Aspergillus. Among these, Alternaria sesami is seed borne and most destructive pathogen causing yield loss to an extent of 28.9 per cent. Hence the effect of artificial infection with A. sesami on seed quality of various samples of sesame was investigated during 2017-2018. Methods: A total of 28 samples were collected from different sesame growing areas of Andhra Pradesh and Telangana and inoculated with A. sesami. The inoculated and uninoculated seeds were tested for germination and seedling growth by rolled paper towel method.Result: Significant differences in seed germination, seedling length and seedling vigour index were observed among the uninoculated as well as inoculated sesame seed samples. The results indicated that Alternaria sesami caused 15.13% to 49.68%, 12.77% to 46.14% and 28.28% to 72.87% reduction in seed germination, seedling length and vigour index, respectively, of inoculated seed over uninoculated seeds. The per cent reduction was highest in the seed samples of YLM-17 collected from farmers’ saved seed samples of Prakasam district.

scholarly journals Potentiality of Bioagents on Seed Quality Enhancement in Chickpea

2014 ◽  
Vol 3 (3) ◽  
pp. 149-153 ◽  
Author(s):  
Venuturla Bharathi ◽  
Kilaru K. Durga ◽  
Madugula S. Rani
Keyword(s):  
Seed Quality ◽  
Growth Parameters ◽  
Germination Percentage ◽  
Quality Enhancement ◽  
Seedling Vigour ◽  
Vigor Index ◽  
Seedling Length ◽  
Vigour Index ◽  
Quality Character ◽  
And Storage

Planting healthy seeds and other inputs have an impact on seed quality, fungal invasion deteriorates the seed quality in soil and storage. Studies on chickpea carried out at Seed Research and Technology Center, Rajendranagar, Hyderabad during spring 2010-11 2011-12 revealed that benomyl was found effective followed by Pseudomonas fluorescens in the inhibition of mycelial growth of Fusarium solani. Maximum germination percentage was recorded with Benomyl (Benomyl 500 WP) @ 2 g/kg seed (treated check) and Tebuconazole @ 1 ml/ kg seed (95 per cent) followed by treatment with P. fluorescens @ 10 g/kg seed along with soil application of P. fluorescens @ 3 kg/acre (94 per cent). Maximization of growth parameters like root length, shoot length and total seedling length were observed with Benomyl @ 2 g/ kg seed  as 17.0 cm, 10.3 cm and 27.3 cm, respectively. Considering seedling vigour index as an important seed quality character, P. fluorescens and Benomyl @ 2 g/kg seed recorded high seedling vigor index. The per cent recovery of infested seeds was found to be low with treated seeds when compared to the control.

Effect dates of sowing and cutting time on seed yield and quality of alfalfa (Medicago sativa L.) CV. RL-88

2017 ◽  
Vol 51 (05) ◽  
Author(s):  
P.R. Arvind Kumar ◽  
B. C. Channakeshava ◽  
R. Siddaraju
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Dry Weight ◽  
Quality Parameters ◽  
Seedling Vigour ◽  
Yield And Quality ◽  
Seedling Length ◽  
Sowing Dates ◽  
Vigour Index

An experiment was carried to find out the effect of sowing dates and cutting time on seed yield and quality of alfalfa cv. RL-88. The results of the experiment revealed that, the significantly higher seed yield per plant (1.491 g), seed yield per plot (161.07 g) and seed yield (355.00 kg ha-1) was noticed in 15th August sowing and the cutting carried out at 60 days after sowing. Whereas, the seed quality parameters of the resultant seeds viz., highest seed germination (95.00 %), seedling length (13.90 cm), seedling dry weight (412.69 mg) and seedling vigour index (1320) found highest in15th August sowing and the cutting followed at 60 days after sowing.

scholarly journals Seed polymer coating with Zn and Fe nanoparticles: An innovative seed quality enhancement technique in pigeonpea

2016 ◽  
Vol 8 (1) ◽  
pp. 445-450 ◽  
Author(s):  
Pradeep Korishettar ◽  
S. N. Vasudevan ◽  
N. M. Shakuntala ◽  
S. R. Doddagoudar ◽  
Sharanagouda Hiregoudar ◽  
...  
Keyword(s):  
Polymer Coating ◽  
Seed Quality ◽  
Dry Weight ◽  
Inhibitory Effect ◽  
Seedling Vigour ◽  
Beneficial Effects ◽  
Seedling Length ◽  
Fe Nanoparticles ◽  
Vigour Index ◽  
And Control

A laboratory study was undertaken to know the effect of seed polymer coating with Zn and Fe nanoparticles (NPs) at different concentration (10, 25, 50, 100, 250, 500, 750 and 1000 ppm) in pigeonpea at Department of Seed Science and Technology, UAS, Raichur. Among the treatments seed polymer coating with Zn NPs at 750 ppm recorded significantly higher seed germination (96.00 %), seedling length (26.63 cm), seedling dry weight (85.00 mg), speed of germination (32.95), field emergence (89.67 %), seedling vigour index (2556), dehydrogenase activity (0.975 OD value) and α-amylase activity (25.67 mm) and lowest abnormal seedlings (2.50 %) over their bulk forms and control followed by Fe and Zn NPs at 500 ppm. However, in contrast to beneficial effects, these NPs also shown inhibitory effect on germination and seedling growth at higher concentration (nano Zn >750 ppm and nano Fe > 500 ppm). Hence, from the results it is concluded that Zn NPs at 750 ppm can be used to enhance quality of the pigeonpea seeds.

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