Effects of Thermal and Salt Treatments during Imbibition on Germination and Seedling Growth of Sorghum at 42/19 °C

Kader, M. A.; Jutzi, S.C.

doi:10.1046/j.0931-2250.2003.00071.x

Cited by 57 publications

(32 citation statements)

References 9 publications

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“…We investigate the morphological and biochemical responses of seeds to different calcium nitrate or humic acids concentrations during germination and early growth stage. Parameters measured in this experiment were: total germination (TG) measured on the seventh day using the formula TG (%) = total number of germinated seeds/ total seed x 100; mean germination time (MGT, days), calculated according the formula of Ellis and Roberts (1981); germination index (GI) and coefficient of velocity (CV), calculated according to the equation of Kader and Jutzi (2004); seedling length (SL, cm), measured with a graduated ruler; seedling fresh weight (SFW) and seedling dry weight (SDW). Seedling dry weight was obtained after placing seedlings, after the 7th day, in an oven to dry at 70°C for 48 h.…”

Section: Introductionmentioning

confidence: 99%

Response of Sesame Seedlings to Different Concentrations of Humic Acids or Calcium Nitrate at Germination and Early Growth

Souguir¹,

Chérif²

2017

Cercetari Agronomice in Moldova

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ABSTRACT. This study was conducted in order to evaluate the response of sesame seeds (Sesamum indicum L.) to organic or mineral fertilization. The effects of two fertilizers, which were calcium nitrate and humic acids were studied separately at germination and early seedlings growth. Different concentrations of humic acids (HA 0 : 0, HA 1 : 500, HA 2 : 1000 and HA 3 : 2000 mg L -1 ) or calcium nitrate (CaN 0 : 0, CaN 1 : 50, CaN 2 : 100 and CaN 3 : 200 mg L -1 ) were applied distinctly to the growth media. The experimental design was accomplished in a completely randomized block design with three replications. Germination measurements, seedlings length, fresh seedling weight, total chlorophylls and carotenoids, total soluble proteins and sugars were determined. Results showed that humic acids applied at 1000 mg L -1 or calcium nitrate applied at 100 mg L -1 reduced the mean germination time (3.5 and 3.61 days) and had the highest germination index (GI) and the highest coefficient of velocity (CV). The longest seedling was obtained at the concentrations HA 2 and CaN 2 (+22%). Total chlorophyll and carotenoids were significantly higher in seedlings receiving the HA 2 and CaN 2 and these treatments increased total soluble proteins content by 32%. Higher concentrations of humic acids or calcium nitrate HA 3 and CaN 3 delayed germination and enhanced proline and total soluble sugars, respectively, by 42% and 46%, compared to control. These preliminary results indicated that the use of fertilizers should be optimized and they can be transformed at high level to an abiotic stress menacing plant productivity. On the other hand, suitable concentrations of fertilizers can be used in the future as a remedy to improve growth under abiotic stress.

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Section: Introductionmentioning

confidence: 99%

Response of Sesame Seedlings to Different Concentrations of Humic Acids or Calcium Nitrate at Germination and Early Growth

Souguir¹,

Chérif²

2017

Cercetari Agronomice in Moldova

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“…Mean germination is the number of seeds germinated in the intervals of time, established for data collection (The number of days required for seeds to complete the germination process). It was calculated according the formula of Kader and Jutzi (2004). (2) Where Ni = number of germinated seeds on the i th days and Ti= rank order of day i (number of days counted from the beginning of germination).…”

Section: Parameters Assayed During the Salinity Experimentsmentioning

confidence: 99%

“…Coefficient of velocity of germination (CVG), gives an indication of the rapidity of germination, which was calculated following the method used by Kader and Jutzi (2004). (4) Where, Ti is number of days after sowing and Ni is number of germinated seeds in an observation day.…”

Section: Parameters Assayed During the Salinity Experimentsmentioning

confidence: 99%

Plant physiological stimulation by seeds salt priming in maize (Zea mays): Prospect for salt tolerance

Gebreegziabher¹,

Qufa²

2017

Afr. J. Biotechnol.

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Nowadays to lessen the influence of salinity on crop performances such as germination, seedling growth and yield, several actions are undertaken; for example the use of different priming methods, antioxidants and plant growth controllers. Seed priming, best fits in this study on maize crop and is controlled by hydration process followed by re-drying that allows pre-germination which enhanced metabolic activities to proceed rapidly. The objective of this study was to investigate how seed salt priming increases maize crop performance thereby enhancing yields by stimulating the plant physiological processes. Here, sodium chloride and calcium chloride primed seeds germinated earlier than unprimed one. Primed maize seeds had better efficiency for water absorption. Likewise, energetic metabolic activities in germination process commence much earlier than radicle and plumule appearance. Priming of seeds with salt solution enables them to break their dormancy and escape from disease causing agents and competent seeds of weeds. Seed priming with NaCl and CaCl 2 had significant effects on germination, early growth, number branches, number of cobs and grain yield. This increase in growth traits likely helps to reduce the competition for water and nutrients with associated improvements in seed yield. Besides, it makes seed priming practice a viable option for the successful use of maize in irrigation areas. Sodium chloride (NaCl) priming increases shoot length while, calcium chloride (CaCl 2) priming increases root length. Seeds grown in vertisol soil prefers seed priming for better stand establishment and crop yield whereas; seeds in lithosol soils prefer priming for better seed germination and increase number cob.

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“…According to Kader and Jutzi (2004), rate and percentage of germination and seed vigor index of sorghum were reduced due to high salinity. Excess salt increases the osmotic potential of the soil solution, which, in turn, affects water movement in the soil and availability to the plants.…”

Section: Introductionmentioning

confidence: 99%

Response of selected indigenous dryland agroforestry tree species to salinity and implications for soil fertility management

et al. 2016

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Salt tolerant plants are known to remove excess soluble salts from the soil and thus may be used in land reclamation.We studied the responses of the trees, Balinites aegyptiaca L. (Zygophyllaceae), as well as the Fabaceae, Acacia tortilis (Forssk) Hayne, and Tamarindus indica L. to salinity. Three experiments were conducted on: germination, in the laboratory; seedling performance in a lath house; and, the impact of the tree species on soil productivity in the field in Afar regional state along the Awash river, eastern Ethiopia. Mixtures of salts, composed of chlorides and sulfates were tested at different concentrations in both germination and lath house experiments in randomized complete block designs. Seedling root collar diameter and height were measured every two weeks. Soil samples were collected from randomly selected pots to examine the effect of salinity on soil properties. The effects of trees on in situ soil productivity was studied by collecting 72 soil samples at different distances from the tree and different soil depths. The soil productivity index was calculated by summing the products of sufficiency of available water capacity, aeration, bulk density, pH, electrical conductivity and the Weighting factor for each layer. The study revealed that germination percentage and rate decreased significantly with increasing salt concentrations. The effects of the three tree species on soil properties were significantly different at 12.2 dS m -1 salinity level compared to the control. A. tortilis was the least salt-sensitive. Balancing the key requirements of adequate germination and growth and the ability to reduce the salt concentration of the soil solution, B. aegyptiaca is the species with the most potential. Therefore, the study suggests to use B. aegyptiaca as agroforestry trees in the form of parkland in arid and semi-arid areas where salinity problems are prominent.

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Effects of Thermal and Salt Treatments during Imbibition on Germination and Seedling Growth of Sorghum at 42/19 °C

Cited by 57 publications

References 9 publications

Response of Sesame Seedlings to Different Concentrations of Humic Acids or Calcium Nitrate at Germination and Early Growth

Response of Sesame Seedlings to Different Concentrations of Humic Acids or Calcium Nitrate at Germination and Early Growth

Plant physiological stimulation by seeds salt priming in maize (Zea mays): Prospect for salt tolerance

Response of selected indigenous dryland agroforestry tree species to salinity and implications for soil fertility management

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