Effect of Seed Hardening and Pelleting on Germination and Seedling Attributes of Cowpea under Saline Condition

2020 ◽  
Author(s):  
M. Prakash ◽  
S. Maamallan ◽  
G. Sathiyanarayanan ◽  
S. Rameshkumar
Keyword(s):  
Seedling Growth ◽  
Dry Matter ◽  
Shoot Length ◽  
Saline Condition ◽  
Legume Crop ◽  
Cowpea Seeds ◽  
Matter Production ◽  
Germination Speed ◽  
Vigour Index ◽  
Leaf Powder

Cowpea (Vigna unguiculata) is an important legume crop. Investigations were undertaken to study the effect of seed hardening, seed pelleting and combined effect of seed hardening with seed pelleting on germination and seedling growth of cowpea under induced saline condition viz., EC4, EC8, EC12 and EC16. Cowpea seeds were hardened with KCl @ 1%, CaCl2 @ 1% and both KCl and CaCl2 @ 1% and hardened seeds were further pelleted with pungam leaf powder @ 100, 150 and 200 g kg-1 of seed. Observations on germination % and seedling parameters were recorded. The experimental results revealed that increased salinity reduced germination and seedling growth in terms of germination %, speed of germination, root length, shoot length, dry matter production and vigour index. However, hardening and pelleting treatments significantly increased all these parameters at all the levels of salinity when compared to control. Among the treatments, seeds hardened with KCl @ 1 % + CaCl2 @ 1 % and pelleted with pungam leaf powder @ 200 g per kg recorded higher germination % and all the seedling parameters when compared to control and other treatments.

Effect of seed pelleting with botanicals on germination and seedling growth of clusterbean under induced saline condition

2019 ◽  
Author(s):  
M. Prakash ◽  
S. Pallavamallan ◽  
G. Sathiyanarayanan ◽  
S. Rameshkumar
Keyword(s):  
Seedling Growth ◽  
Prosopis Juliflora ◽  
Pongamia Pinnata ◽  
Cyamopsis Tetragonoloba ◽  
Saline Condition ◽  
Cluster Bean ◽  
Legume Crop ◽  
Vigour Index ◽  
Leaf Powder ◽  
Albizia Amara

Cluster bean (Cyamopsis tetragonoloba (L.) Taub.) is an important legume crop. Investigations were undertaken to study the effect of seed pelleting with botanicals viz., Pongamia pinnata, Prosopis juliflora, Vitex nigundo and Albizia amara@ 50, 100, 150 and 200 g kg-1 of seed on germination and seedling growth of cluster bean under induced saline condition viz., EC4, EC8, EC12 and EC16. The experimental results revealed that increased salinity caused harmful effects on germination and seedling growth in terms of germination %, speed of germination, root length, shoot length, dry matter production and vigour index. However, pelleting treatments increased these parameters with more pronounced effect by Pongamia pinnata leaf powder. Higher germination, growth and vigour of seedlings were recorded with Pongamia pinnata leaf powder treatment @ 200g per kg. The next best levels of vigour index was recorded in treatments with Pongamia pinnata leaf powder @ 150g per kg and Prosopis juliflora leaf powder @ 200g per kg only at no salinity and low levels and in high levels of salinity, Albizia amara leaf powder treatment @ 200g per kg performed as the nest best treatment.

Effect of Different Organic Addition on Seedling Growth and Stump Quality of Teak (Tectona grandis Linn f.)

2018 ◽  
Vol 41 (4) ◽  
pp. 363-367
Author(s):  
Poomaruthai Masilamani ◽  
◽  
Velanganni Alex Albert ◽  
Murugaiyan Baskar ◽  
Marimuthu Govindaraj ◽  
...  
Keyword(s):  
Fly Ash ◽  
Seedling Growth ◽  
Significant Influence ◽  
Dry Matter ◽  
Organic Amendments ◽  
Tectona Grandis ◽  
Shoot Length ◽  
Matter Production ◽  
Nursery Experiment

A nursery experiment was conducted to study the effect of different organic addition in the nursery on growth and stump quality of teak seedling. The nursery soil sample was analyzed before initiate the experiment and after uprooting the seedling from nursery (post harvest soil). The pre conditioned 6 months-old teak drupes (fruit with seed) were placed for germination in the nursery bed. The experiment consisted of eight treatments which replicated thrice. On 28 and 60 days after sowing, the result revealed that the application of organic amendments did not have any significant effect on number of seedlings /m2 of teak at 28 days after sowing, where as the significant influence were observed at 60 days after sowing. Significant differences were observed in root length (cm), shoot length (cm), stump weight (g), stump girth (mm) and dry matter production (g) of teak stump at 6 months after sowing. From this study it could be concluded that the organic addition of teak nursery with FYM @ 12.5 t ha-1 + bagasse fly ash @ 20 t ha-1 enhance the seedling growth and stump quality of 6 months old teak nursery.

scholarly journals Influence of size grading on physiological parameters in Tephrosia (Tephrosia purpurea) MDU (KO)-1

2017 ◽  
Vol 9 (1) ◽  
pp. 639-641
Author(s):  
S. Sivasubramaniam ◽  
S. Ambika ◽  
M. Vetrivel
Keyword(s):  
Seed Weight ◽  
Dry Matter ◽  
Seed Quality ◽  
Shoot Length ◽  
Crop Establishment ◽  
Tephrosia Purpurea ◽  
Matter Production ◽  
Vigour Index ◽  
Physiological And Biochemical ◽  
100 Seed Weight

Seed grading is an important practice for better crop establishment and to improve efficiency of planting ratio in field and also useful in separation of quality seed in a seed lot. The influence of seed size on physiological and biochemical seed quality characters were evaluated in Tephrosia seeds using seeds retained on 5.5/64″, 6/64″ and 7/64″ sieves along with control. The estimations revealed that larger size seeds retained on 7/64" sieves recorded the maximum recovery (64 %), 100 seed weight (2.0 g), speed of germination (14.1) germination ( 86 %), root length (8.5 cm), shoot length (11.0 cm), dry matter production (15.92 mg seedlings-10), vigour index (1677) and protein (10.56 %) compared to BSS 5.5 / 64'', BSS 6 / 64'' and ungraded seeds.

scholarly journals Effect Of Preserved Seeds Using Different Botanicals On Seed Quality Of Lentil

1970 ◽  
Vol 36 (3) ◽  
pp. 381-387 ◽  
Author(s):  
A Khatun ◽  
G Kabir ◽  
MAH Bhuiyan ◽  
D Khanam
Keyword(s):  
Moisture Content ◽  
Azadirachta Indica ◽  
Seed Quality ◽  
Shoot Length ◽  
Germination Capacity ◽  
Laboratory Studies ◽  
Polygonum Hydropiper ◽  
Vigour Index ◽  
Leaf Powder

Laboratory studies were conducted with leaf powder of three plants to show the preservative effect for maintaining the quality of lentil seeds in storage. After processing and drying, seeds were preserved with different botanicals and stored them in earthen pots for eight months. Botanicals, such as whole leaf powder of neem (Azadirachta indica), dholkalmi (Ipmoea sepiara), and bishkatali (Polygonum hydropiper) were used at a dose of 5% w/w (25 g botanical per 500 g of lentil seeds). The lentil seeds were stored till next planting time and seed quality, such as moisture content, germination capacity, root length, shoot length of the seedlings and vigour index were observed. The highest values for all these characters except moisture content were significant when the seeds were preserved with neem leaf powder and bishkatali. Among three botanicals, dholkalmi was less effective. Keywords: Lentil; botanicals; storage; seed quality DOI: http://dx.doi.org/10.3329/bjar.v36i3.9266 BJAR 2011; 36(3): 381-387

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).

The Potential Allelopathic Characteristics of Bitter Sneezeweed (Helenium amarum)

Weed Science ◽  
1989 ◽  
Vol 37 (5) ◽  
pp. 665-669 ◽  
Author(s):  
Albert E. Smith
Keyword(s):  
Liquid Phase ◽  
Seedling Growth ◽  
Dry Matter ◽  
Solid Phase ◽  
Leaf Tissue ◽  
Italian Ryegrass ◽  
Aqueous Extracts ◽  
Leaf Extracts ◽  
Root Extracts ◽  
Matter Production

Research was conducted to determine the potential for allelopathy to occur in pastures infested with bitter sneezeweed. Aqueous extracts of bitter sneezeweed leaves reduced alfalfa and Italian ryegrass seedling growth as much as 50% at concentrations of 0.5% (w/v). Leaf extracts were more phytotoxic than either stem or root extracts and seedling growth was reduced more than seed germination. Bitter sneezeweed tissue mixed in potting soil at concentrations as low as 0.3% w/w reduced alfalfa seedling numbers by 43%, plant height by 26%, and foliage dry matter production by 54% compared to plants cultured in soil without bitter sneezeweed leaf tissue. The potential concentration of bitter sneezeweed leaf material in soil in the pasture ecosystem was determined to be 0.5% w/v in the liquid phase and 0.2% w/w in the solid phase. Alfalfa seedling growth was reduced by 70% when germinating seed were placed under a bell jar with a potted mature bitter sneezeweed plant compared to control seedlings. A potential exists for bitter sneezeweed interference with developing alfalfa and Italian ryegrass seedlings following fall interseeding into pastures infested with bitter sneezeweed.

scholarly journals Conservation of Hibiscus acetosella germplasm by seed cryopreservation

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 372-379
Author(s):  
Rodrigo Miranda Moraes ◽  
Fernanda Carlota Nery ◽  
Mayara Caroline Carvalho Pinto ◽  
Renato Paiva ◽  
Sandro Barbosa
Keyword(s):  
Moisture Content ◽  
Dry Matter ◽  
Germination Percentage ◽  
Shoot Length ◽  
The Other ◽  
Survival Percentage ◽  
Germination Speed ◽  
Normal Seedling ◽  
Seed Cryopreservation

Hibiscus acetosella (Malvaceae) is a shrub of great importance for landscaping, food and medicinal purposes. The objective of this study was to preserve H. acetosella germplasm by seed cryopreservation. Half of the seed batch was scarified and the other half was kept intact. Cryopreservation occurred by immersion in liquid nitrogen for 1 hour. Moisture content (MC%), germination percentage (G%), germination speed index (GSI), normal seedling formation (NS%), shoot length (SL), dry matter (DM), biometry and plant survival were evaluated after treatment. MC% ranged between 7.7% and 6.65% in intact and scarified seeds, respectively. Scarification raised G% and GSI compared to intact seeds. Intact and scarified seeds had 100% and 70% NS%, respectively, when not cryopreserved. Cryopreservation reduced NS% to 62% and 12.75%, respectively. The highest SL was observed in intact and non-cryopreserved seeds, with an average of 10.21 cm in height. However, the cryopreservation of intact seeds reduced SL by about 50%, and scarification led to a further reduction, either with (3.32 cm) or without (2.47 cm) cryopreservation. Seedlings from intact and non-cryopreserved seeds showed higher DM in relation to seedlings from cryopreserved seeds. The association of cryopreservation and scarification further reduced DM. The cryopreservation of intact seeds yielded 100% survival at the end of the acclimatization process. However, cryopreservation of scarified seeds reduced the survival percentage to 15%. Changes in color were observed for seeds scarified and subjected to cryopreservation. Thus, cryopreservation is considered an efficient technique for the conservation of intact H. acetosella seeds in the long term.

scholarly journals Germination and vigor of Encholirium spectabile seeds according to geographical region, substrate and sowing position

2020 ◽  
Vol 9 (8) ◽  
pp. e865986245
Author(s):  
Ariana Veras de Araújo ◽  
Monalisa Alves Diniz da Silva ◽  
André Pereira Freire Ferraz
Keyword(s):  
Dry Matter ◽  
Shoot Growth ◽  
Geographical Region ◽  
Coconut Fiber ◽  
Commercial Exploitation ◽  
Blotting Paper ◽  
Matter Production ◽  
Geographical Regions ◽  
Germination Speed ◽  
Geographic Regions

Given the potential for commercial exploitation of E. spectabile and aiming to curb predatory extractivism, the development of researches that guide its cultivation becomes relevant. This study aims to evaluate the effects of different substrates and seed positions at sowing on the germination and vigor of seeds from two geographical regions. The experiment design was completely randomized in a 2 x 4 x 2 factorial design (seeds from two geographic regions:  i.e., Serra Talhada-PE and Graça-CE, both in Brazil; four substrates: blotting paper, sand, vermiculite and coconut fiber: and two sowing positions: over and in between the substrate). Sowing on blotting paper, sand, vermiculite and coconut fiber, in general, was favorable to germination and germination speed index for seeds from both geographic regions. Sowing in between coconut fiber was detrimental to germination and root development regardless of the seed geographical region. However, sowing in between and over coconut fiber and in between sand favored shoot growth. The best combinations for dry matter production were sowing over paper and sand. The substrates blotting paper, sand, coconut fiber and vermiculite are favorable to E. spectabile seed germination regardless of geographic regions, provided that the sowing is made over the substrates.

Effect of organic seed pelleting on biometric, biophysical and yield parameters of clusterbean under saline condition

2019 ◽  
Author(s):  
M. Prakash ◽  
S. Pallavamallan ◽  
G. Sathiya Narayanan ◽  
S. Rameshkumar
Keyword(s):  
Field Experiments ◽  
Intercellular Co2 Concentration ◽  
Co2 Concentration ◽  
Growth And Yield ◽  
Saline Condition ◽  
Biophysical Parameters ◽  
Cluster Bean ◽  
Yield Parameters ◽  
Matter Production ◽  
Leaf Powder

Cluster bean is one of the major legumes cultivated in many parts of the world. However effect of organic seed pelleting in this crops needs more attention nowadays in probem soils like saline soil. Field experiments were carried out with cluster bean cv. Pusa Mausami to study the effect of organic seed pelleting on biometric, biophysical and yield parameters of clusterbean under saline condition. The seeds of cluster bean cv. Pusa Mausami were pelleted with pungam, prosopis, notchi, arappu leaf powders @ 50, 100, 150 and 200 g per kg. From the results, it was found that seed pelleting with pungam leaf powder @ 200 g per kg registered significantly higher values for biometric parameters viz., plant height, number of branches per plant, dry matter production, biophysical parameters viz., photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO2 concentration and yield parameters viz., pod length, number of pods per plant, pod yield per plant, number of seeds per pod, seed yield per plant and hundred seed weight. From the present study, it was concluded that seed pelleting with pungamn leaf powder @ 200 g per kg can be recommended for increased growth and yield parameters in cluster bean under saline conditions.

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