Hot water seed treatment for Leucaena glauca (L.) Benth

1962 ◽  
Vol 2 (6) ◽  
pp. 178 ◽  
Author(s):  
SG Gray
Keyword(s):  
Water Treatment ◽  
Effective Treatment ◽  
Sulphuric Acid ◽  
Seed Treatment ◽  
Hot Water ◽  
Sowing Seed

Seed of Leucaena glauca (L.) Benth. germinates slowly, and irregularly unless treated before sowing to render the testa permeable to water. Treatment with sulphuric acid is effective but inconvenient to use. Experiments with hot water over a range of temperature and time are described. An effective treatment was to immerse the seed in water at 80�Cfor two minutes. After this treatment seed can be dried rapidly and stored before sowing. Seed treated in this way has retained full viability for 15 months.

SEED TREATMENTS FOR ENHANCING GERMINATION OF WILD OKRA (Corchorus olitorius)

2003 ◽  
Vol 39 (4) ◽  
pp. 441-447 ◽  
Author(s):  
P. VELEMPINI ◽  
I. RIDDOCH ◽  
N. BATISANI
Keyword(s):  
Hydrogen Peroxide ◽  
Effective Treatment ◽  
Sulphuric Acid ◽  
Seed Treatment ◽  
Room Temperature ◽  
Hot Water ◽  
Leafy Vegetable ◽  
Corchorus Olitorius ◽  
Treatment Methods ◽  
Dry Heat

The effects of different seed treatment methods and durations of exposure on germination of wild okra (Corchorus olitorius), a traditional leafy vegetable consumed in many parts of Africa, were investigated. Seeds were exposed to seven treatments (hot water at 80 °C, hot water at 100 °C, dry heat at 80 °C, dry heat at 100 °C, concentrated sulphuric acid, 10% hydrogen peroxide and water at room temperature) for periods of up to 30 minutes. Exposure for five to 15 minutes in hot water at 80 °C was the most effective treatment for enhancing germination (>90%), followed by five minutes in hot water at 100 °C (80%) and 30 minutes in sulphuric acid (57%). Other treatments were less effective. Soaking seeds in hot water at approximately 80 °C for about 10 minutes can be recommended, therefore, to farmers as a simple, cheap and very effective way of germinating wild okra.

scholarly journals Germination and emergence of four rattan Calamus species of Western ghats in response to different pre-sowing seed treatments

2016 ◽  
Vol 8 (2) ◽  
pp. 760-768
Author(s):  
K. Vidyasagaran ◽  
E. D. Jisha ◽  
Vikas Kumar
Keyword(s):  
Water Treatment ◽  
Sulphuric Acid ◽  
Acid Treatment ◽  
Complete Removal ◽  
Germination Percentage ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Calamus Thwaitesii ◽  
Sowing Seed ◽  
Germination Value

The present investigation was carried out to study the effect of ten pre-sowing treatments on germination parameter of the four Calamus species in the nursery of College of Forestry, Vellanikkara. Most of the pre-sowing treatments of Calamus spp. gave better performance compared to the control. Complete removal of outer pericarp and sarcotesta of each seed manually (T2), Sulphuric acid treatment for 3-5 minutes after removing sarcotesta (T6) and Hot water treatment (500C) after removing sarcotesta for two minutes followed by soaking in water for 12 hours (T7) were found promising in all the species. The higher germination percentage (83.82, 89.96), mean daily germination (0.020, 3.39), peak value of germination (0.026, 3.45) and germination value (0.00041, 11.56) and was recorded for Calamus thwaitesii and C. metzianus in treatment with GA3 (T9) respectively. The maximum germination percentage (27.74), MDG (0.41), PVG (0.46) and GV (0.20) for C. hookerianus in T7 (Hot water treatment (500C) after removing sarcotesta for two minutes followed by soaking in water for 12 hours), and highest MDG (0.078), PVG (0.91) and GV (0.0065) for C. travancoricus in T5 (Sulphuric acid treatment for 3-5 minutes without removing sarcotesta). The present study reiterated that the pre-sowing treatments hold major scope in the propagation of rattan seedlings which usually could not germinate well under ordinary conditions due to dormancy.

SEED TREATMENT METHODS AND DURATION EFFECTS ON GERMINATION OF WILD SUNFLOWER

2000 ◽  
Vol 36 (1) ◽  
pp. 63-69 ◽  
Author(s):  
J. O. AKINOLA ◽  
A. LARBI ◽  
G. O. FARINU ◽  
A. A. ODUNSI
Keyword(s):  
Hydrogen Peroxide ◽  
Sulphuric Acid ◽  
Seed Treatment ◽  
Lower Cost ◽  
Hot Water ◽  
Environmental Concerns ◽  
Hot Water Treatment ◽  
Tithonia Diversifolia ◽  
Wild Sunflower ◽  
Oven Drying

The effects were evaluated of six methods and six durations of seed treatment on the germination of wild sunflower (Tithonia diversifolia) seeds. The treatments were as follows: (1) hot water at 80 °C, (2) hot water at 100 °C, (3) oven-drying at 80 °C, (4) oven-drying at 100 °C, (5) immersion in concentrated sulphuric acid and (6) immersion in 10% hydrogen peroxide. The durations were 0, 2.5, 5, 10, 15 and 20 min. Treatment with hot water at 80 or 100 °C for 11–14 min, and oven-drying at 100 °C for 20 min all resulted in more than 65% germination 10 d after treatment. Oven-drying at 80 °C, immersion in concentrated sulphuric acid and in 10% hydrogen peroxide resulted in less than 50% germination. Based on the higher cumulative germination, lower cost, and environmental concerns, hot water treatment at 80 or 100 °C for 11–15 min is recommended.

scholarly journals Effect of Three Pregermination Treatments on the Growth of Emerging Seedlings of Acacia auriculiformis (Cunn. Ex. Benth)

2020 ◽  
pp. 19-28
Author(s):  
Y. O. Abayomi ◽  
A. M. Aduradola ◽  
J. A. Yisau ◽  
R. A. Hammed ◽  
S. O. Adeniyi
Keyword(s):  
Water Treatment ◽  
Plant Height ◽  
Sulphuric Acid ◽  
Acid Treatment ◽  
Treatment Time ◽  
Hot Water ◽  
Acacia Auriculiformis ◽  
Morphological Parameters ◽  
Hot Water Treatment ◽  
Stem Height

This research was carried out to determine the effect of some pregermination treatments on the seeds of Acacia auriculiformis as it affects growth. The treatments involve the effect of sulphuric acid (concentration and time), mechanical scarification (at different sides), and hot water treatment (volume and time). Split plot design was used for acid treatment and hot water treatment, while Randomized Complete Block Design (RCBD) was used for mechanical scarification. The experiment was carried out at Federal University of Agriculture, Abeokuta, Nigeria. Parameters assessed include; plant height, stem height, leaf number. Acid treatment was carried out using different concentration of sulphuric acid (98%, 50% and 20%) and different treatment time (2 minutes, 5 minutes and 10 minutes). Concentration of acid was significant (p<0.05) on plant height, stem height and leaf number, higher concentration of acid (98%) enhanced morphological parameters of Acacia auriculiformis. Result showed that mechanical scarification significantly affect stem height (p<0.05), however, while mechanical scarification does not significantly affect plant height, the highest mean plant height (8.98 cm) was observed in seeds that were mechanically scarified at the micropyle; early germination of seeds was also noticed. Hot water treatment was carried out using different volume of water (50 cl and 1 litre) and varying treatment time (2 minutes, 4 minutes, 6 minutes and 10 minutes), the treatment showed no significant difference, and this method is not favourable for breaking seed dormancy of Acacia auriculiformis. Result showed that 100% germination could be achieved within seven (7) days when seeds are mechanically scarified at the micropyle, circumference, distal-end and micropyle+distalend, provided the seeds are viable. This research conclude that, acid scarification using H2SO4 at 98% concentration is the best method yielding better morphological parameters in Acacia auriculiformis, followed by mechanical scarification (especially when scarified at the micropyle).

Improvement of separate elements of the techno-logy of cultivation of white cabbage in the conditions of the of the central region of the non-chernozem zone

2020 ◽  
Author(s):  
A.V. Konstantinovich ◽  
◽  
A.S. Kuracheva ◽  
E.D. Binkevich
Keyword(s):  
Seed Treatment ◽  
Unit Area ◽  
Growing Season ◽  
Agricultural Products ◽  
Stress Factors ◽  
High Quality ◽  
Temperature And Precipitation ◽  
White Cabbage ◽  
Sowing Seed

In conditions of climate change, when temperature and precipitation fluctuations occur more and more frequently during the growing season, it is necessary to obtain high quality seedlings with "immunity" to various stress factors, including high weediness, the damage from which is associated with a decrease in yield (by 25 -35%) and with a deterioration in the quality of agricultural products. Due to the imbalance in production technology, seedlings are often weakened, overgrown, with a low yield per unit area and survival rate in the field. One of the solutions to this problem is the use of PP for pre-sowing seed treatment to increase the competitiveness of seedlings in the field.

Influence of pre-sowing seed treatment on frost- and winter resistance of winter wheat after various predecessors

2018 ◽  
Vol 2 (1) ◽  
pp. 53-60
Author(s):  
A.V. Cherenkov ◽  
◽  
S.K. Gruzinov ◽  
I.O. Kobos ◽  
◽  
...  
Keyword(s):  
Winter Wheat ◽  
Seed Treatment ◽  
Sowing Seed

Silver nanoparticles eliminate Xanthomonas campestris pv. campestris in cabbage seeds more efficiently than hot water treatment

2021 ◽  
Vol 27 ◽  
pp. 102284
Author(s):  
Jakub Pečenka ◽  
Zuzana Bytešníková ◽  
Tomáš Kiss ◽  
Eliška Peňázová ◽  
Miroslav Baránek ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Water Treatment ◽  
Xanthomonas Campestris ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Xanthomonas Campestris Pv Campestris

Effect of Ozonated Water Treatment on Microbial Control and on Browning of Iceberg Lettuce (Lactuca sativa L.)

2006 ◽  
Vol 69 (1) ◽  
pp. 154-160 ◽  
Author(s):  
SHIGENOBU KOSEKI ◽  
SEIICHIRO ISOBE
Keyword(s):  
Water Treatment ◽  
Lactuca Sativa ◽  
Combined Treatment ◽  
Microbial Control ◽  
Hot Water ◽  
Pal Activity ◽  
Iceberg Lettuce ◽  
A Value ◽  
Lactuca Sativa L ◽  
Ozonated Water

We examined the effect of ozonated water treatment on microbial control and quality of cut iceberg lettuce (Lactuca sativa L.). Fresh-cut lettuce was washed in ozonated water (3, 5, and 10 ppm) for 5 min at ambient temperature. The native bacterial population on the lettuce declined in response to a rise in ozone concentration. However, there was no further bacterial reduction (1.4 log CFU/g) above 5 ppm ozone. Although ozonated water treatment increased the phenylalanine ammonia lyase (PAL) activity of the lettuce stored at 10°C compared with the water wash treatment after 1 day of storage, the concentration of ozone did not affect PAL activity. The a* value of the residue of the lettuce methanol extracts, which reflects the extent of browning, increased dramatically in lettuce treated with 10 ppm ozonated water compared with other treatments. Treatment with 3 or 5 ppm ozonated water resulted in more rapid changes in the a* value than after the water treatment. The combined treatment of hot water (50°C, 2.5 min) followed by ozonated water (5 ppm, 2.5 min) had the same bactericidal effect as treatment with ozonated water (5 ppm, 5 min) or sodium hypochlorite (NaOCl, 200 ppm, 5 min), giving a reduction in bacteria numbers of 1.2 to 1.4 log CFU/g. The ascorbic acid content of the lettuce was not affected by these treatments. The combined treatment of hot water followed by ozonated water greatly inhibited PAL activity for up to 3 days of storage at 10°C. Treatment with this combination greatly suppressed increases in the a* value, thus retarding the progress of browning compared with other treatments throughout the 6-day storage. NaOCl treatment also inhibited browning for up to 3 days of storage. Bacterial populations on the lettuce treated with sanitizers were initially reduced but then showed rapid growth compared with that of the water wash treatment, which did not reduce bacterial counts initially.

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