scholarly journals Date palm compost versus peat and perlite: a comparative study on germination and plant development of muskmelon and tomato

2021 ◽  
Vol 24 (2) ◽  
pp. 96-104
Author(s):  
Afraa Radhouani ◽  
Leila Benyehia ◽  
Belgacem Lechaiheb ◽  
Afef Mahjoubi ◽  
Ali Ferchichi
Keyword(s):  
Plant Development ◽  
Arid Regions ◽  
Date Palm ◽  
Stem Elongation ◽  
Germination Percentage ◽  
Growth Media ◽  
Potting Medium ◽  
Vigour Index ◽  
Pronounced Reduction

Abstract This research was carried out in the experimental site of the Arid and Oasian cultures Laboratory of the Institute of Arid Regions, Medenine, Tunisia. It aims at studying the effects of compost on seed germination patterns, seedling growth, and plant development of muskmelon and tomato under greenhouse conditions. Three growth media were used: compost of date palm wastes and two reference media (peat and perlite). The results showed that compost presented a promising threshold of both maturity and stability, which is related to its neutral pH, C : N ratio, greater humic acid vs fulvic acid, and low values of chlorophyll-type compounds. Seeds of muskmelon and tomato germinated at varying liquid compost extract concentrations and muskmelon reached higher germination index values even at the pure extract solution (100%). Moreover, seeds of both species germinated relatively faster in peat than in compost and an overall delay in germination was observed, with a more pronounced reduction on tomato germination percentage. Produced seedlings have attained a similar vigour index among media (p <0.05). Compost of date palm was more suitable for muskmelon stem elongation and leaf-enlarging capacity than perlite. However, the gustative quality of fruits was not significantly affected by the medium-types. Thus, it is concluded the promoising effect of compost of date palm as potting medium and substrate in soilless culture under greenhouse conditions unless a pertinent choice of cultures.

scholarly journals Impact of a Novel Water-Saving Subsurface Irrigation System on Water Productivity, Photosynthetic Characteristics, Yield, and Fruit Quality of Date Palm under Arid Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1265
Author(s):  
Maged Elsayed Ahmed Mohammed ◽  
Mohammed Refdan Alhajhoj ◽  
Hassan Muzzamil Ali-Dinar ◽  
Muhammad Munir
Keyword(s):  
Water Use ◽  
Fruit Quality ◽  
Irrigation Water ◽  
Arid Regions ◽  
Date Palm ◽  
Irrigation System ◽  
Water Productivity ◽  
Use Efficiency ◽  
The Impact

Water scarcity is a major constraint in arid and semi-arid regions. Crops that require less irrigation water and those, which are considered drought-tolerant such as date palm (Phoenix dactylifera L.), are dominant in these regions. Despite the tolerance of these crops, the development of technologies that ensure efficient use of irrigation water is imperative. Taking these issues into consideration, the study was conducted to investigate the impact of limited irrigation water using a new subsurface irrigation system (SSI) on gas exchange, chlorophyll content, water use efficiency, water productivity, fruit physicochemical characteristics, and yield of date palm (cv. Sheshi). The impact of the SSI system was compared with two surface irrigation systems, namely, surface drip irrigation (SDI) and surface bubbler irrigation (SBI). The field experiment was carried out during 2018 and 2019 at the Date Palm Research Center of Excellence, King Faisal University, Kingdom of Saudi Arabia. The annual crop evapotranspiration (ETc) was 2544 mm. The applied irrigation water was set at 50%, 75%, and 125% of ETc for SSI, SDI, and SBI, respectively, which were based on the higher crop water productivity recorded in an initial field study. The total annual volume of water applied for SSI, SDI, and SBI was 22.89, 34.34, and 57.24 m3 palm−1, respectively. The crop water productivity (CWP) at the SSI system was significantly higher, with a value of 1.15 kg m−3, compared to the SDI (0.51 kg m−3) and SBI systems (0.37 kg m−3). The photosynthetic water use efficiency (WUE) was 10.09, 9.96, and 9.56 μmol CO2 mmol−1 H2O for SSI, SBI, and SDI, respectively. The maximum chlorophyll content (62.4 SPAD) was observed in SBI, followed by SSI (58.9 SPAD) and SDI (56.9 SPAD). Similarly, net photosynthesis and the transpiration rate were significantly higher in SBI and lowest in SSI. However, the SSI system substantially increased palm yield and enhanced fruit quality. The new SSI system, through its positive impact on the efficiency of irrigation water use and enhancement on fruit yield and fruit quality of date palm, seems quite suitable for the irrigation of palm trees in arid and semi-arid regions.

scholarly journals Seed Management and Quality of Farmer Saved Seeds of Bambara groundnut from North Western, Northern and Eastern Uganda

2021 ◽  
Vol 56 (1) ◽  
pp. 1-15
Author(s):  
M. Obura ◽  
G. Oballim ◽  
J. O. Ochuodho ◽  
F. N.W. Maina ◽  
V.E. Anjichi
Keyword(s):  
Electrical Conductivity ◽  
Management Practices ◽  
Germination Percentage ◽  
Bambara Groundnut ◽  
Limited Information ◽  
Seedling Vigour ◽  
Legume Crop ◽  
Vigour Index ◽  
Seed Management

   Bambara groundnut (BG) is a protein and energy-rich legume crop of African origin with the potential to contribute to food and nutrition security. There is limited information on seed man­agement and quality of farmer saved seed of BG in Uganda. This study was conducted to inves­tigate seed management practices and evaluate the quality of farmer saved seed from Uganda. Four hundred BG farmers were chosen using purposive sampling and information gathered on their seed management. A semi-structured questionnaire was used to interview the farm­ers. Seed colour and size determination, standard germination and electrical conductivity tests were done on seed samples collected from farmers. Results from survey revealed that farmers recycled seeds for more than 4 years (39.2%) and maintained mostly single landraces (52.5%). Seed was sun-dried on the ground (81%), stored in gunny bags (93.5%), and threshed mostly by hand (52.0%). Collected landraces had varied seed coat colours and significantly differed at p = 0.05 in their seed sizes, final germination percentage (FGP), electrical conductivity (EC), germination velocity index and seedling vigour index II (SVI-II). Local Bam landrace recorded highest SVI-II (485.3) and EC (0.52MSg-1) while TVSU 688 landrace recorded the highest FGP (96.0%) and lowest EC (0.06MSg-1).

scholarly journals Effects of drought and temperature on the germination of seeds of Seriphidium transiliense, a desert xerophytic subshrub of Xinjiang, China

2020 ◽  
Vol 48 (3) ◽  
pp. 355-365
Author(s):  
Aiping Chen ◽  
Yuxiang Wang ◽  
Xiaoqing Sui ◽  
Guili Jin ◽  
Kun Wang ◽  
...  
Keyword(s):  
Seed Germination ◽  
Arid Regions ◽  
Germination Percentage ◽  
Temperature Regimes ◽  
Germination Ability ◽  
Germination Characteristics ◽  
Vigour Index ◽  
Effects Of Drought ◽  
Plant Life Cycle ◽  
Mean Time

Global warming has led to changes in rainfall patterns in many regions and it has an increasing impact on the availability of water for plants, especially in the arid and semi-arid regions. Seed germination is the most critical stage in the plant life cycle, it determines whether or not the population can successfully establish. Here, we assessed the seed germination characteristics of Seriphidium transiliense under six water potentials and four temperature regimes. S. transiliense seeds could germinate from 5/15°C to 20/30°C, while the optimum temperature regime was 10/20°C. As water potential decreased, the germination percentage, germination index, germination energy, vigour index, plumule length and radicle length increased and then decreased, while mean time to germinate decreased and then increased. The optimum condition for S. transiliense seed germination was -0.2 MPa at 10/20°C. Some seeds that failed to germinate under drought conditions were transferred to distilled water and recovered germination ability.

scholarly journals Seed quality assessment of three photo-insensitive cultivars of lablab bean influenced by date of sowing

1970 ◽  
Vol 33 (3) ◽  
pp. 381-389
Author(s):  
KM Kabir Alam ◽  
MKR Bhuiyan ◽  
GMA Halim ◽  
M Zakaria ◽  
MJ Hossain
Keyword(s):  
Electrical Conductivity ◽  
Quality Assessment ◽  
Key Words ◽  
Dry Matter ◽  
Seed Quality ◽  
Germination Percentage ◽  
Composite Sample ◽  
Lablab Purpureus ◽  
Vigour Index

Quality of seeds of three cultivars (IPSA Seem-2, BU Seem-3 and IPSA Seem-5) of lablab bean (Lablab purpureus L. Sweet) collected from crops planted in three different dates (15 May, 15 July, and 15 September 2003) was assessed in respect of different parameters. The maximum percentage of seeds of cv. IPSA Seem-2 was germinated (95.67) whereas, BU Seem-3 had the maximum electrical conductivity (EC) (316.06 μs/cm) followed by IPSA Seem-5 (261.53 μs/cm). The cv. IPSA Seem-2 also had the highest vigour index (VI) (65.04) and coefficient of germination (CG) (58.90). The maximum length of root and shoot was 13.73 cm and 12.98 cm in IPSA Seem-5 and IPSA Seem-2, respectively. The percentage of dry matter of root and shoot was the highest for BU Seem-3 (23.68 and 12.15, respectively), whereas, the composite sample of root and shoot of IPSA Seem-2 had the highest value of dry matter (14.54%). Seeds of September planted crops had better germination percentage (95.67), VI (50.07), CG (47.65), length of root (13.63 cm), dry matter of root (24.79%), shoot (13.34%) and composite sample (15.14%). Whereas, seeds of May planted crops had the maximum EC (388.23 μs/cm) and length of shoot (15.29 cm). Seeds of cv. IPSA Seem-2 collected from September planted crops had the maximum germination percentage (97.75), VI (70.96), CG (64.13), length of shoot (11.41 cm) and dry matter percentage of composite sample of root and shoot (16.58). BU Seem-3 of May planted crops had the maximum EC (469.78 μs/cm). But BU Seem-3 of September planting had the highest dry matter of root of seedling (25.19%). Seedlings of cv. IPSA Seem-5 planted in September had the highest length of roots (14.63 cm) and dry matter of shoot (13.79%). Key Words: Seed quality, photo-insensitive, dates of planting and lablab bean. doi:10.3329/bjar.v33i3.1597 Bangladesh J. Agril. Res. 33(3) : 381-389, September 2008

scholarly journals A framework of artificial light management for optimal plant development for smart greenhouse application

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261281
Author(s):  
João Pereira ◽  
Abdul Mounem Mouazen ◽  
Mathias Foo ◽  
Hafiz Ahmed
Keyword(s):  
Flowering Time ◽  
Plant Development ◽  
Light Exposure ◽  
Stem Elongation ◽  
Hypocotyl Length ◽  
Global Food Security ◽  
Light Management ◽  
Added Benefit ◽  
Reduced Light

Smart greenhouse farming has emerged as one of the solutions to global food security, where farming productivity can be managed and improved in an automated manner. While it is known that plant development is highly dependent on the quantity and quality of light exposure, the specific impact of the different light properties is yet to be fully understood. In this study, using the model plant Arabidopsis, we systematically investigate how six different light properties (i.e., photoperiod, light offset, intensity, phase of dawn, duration of twilight and period) would affect plant development i.e., flowering time and hypocotyl (seedling stem) elongation using an established mathematical model of the plant circadian system relating light input to flowering time and hypocotyl elongation outputs for smart greenhouse application. We vary each of the light properties individually and then collectively to understand their effect on plant development. Our analyses show in comparison to the nominal value, the photoperiod of 18 hours, period of 24 hours, no light offset, phase of dawn of 0 hour, duration of twilight of 0.05 hour and a reduced light intensity of 1% are able to improve by at least 30% in days to flower (from 32.52 days to 20.61 days) and hypocotyl length (from 1.90 mm to 1.19mm) with the added benefit of reducing energy consumption by at least 15% (from 4.27 MWh/year to 3.62 MWh/year). These findings could provide beneficial solutions to the smart greenhouse farming industries in terms of achieving enhanced productivity while consuming less energy.

scholarly journals Effect of fungicides on seed quality of lentil (Lens culinaris L.) during storage

2017 ◽  
Vol 5 (2) ◽  
pp. 51-56
Author(s):  
A Khatun ◽  
MAH Bhuiyan ◽  
A Tahmid
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Germination Rate ◽  
Storage Period ◽  
Dry Weight ◽  
Storage Condition ◽  
Germination Percentage ◽  
Vigour Index ◽  
Initial Seed

Laboratory tests were carried out to study the effect of different fungicides i.e. Bavistin DF, Vitavax and Genuine 50WP on the seed quality of lentil during storage condition. After processing and drying, seeds were preserved separately with three fungicides at the rate of 2.5g kg-1 of seeds and stored in earthen pots till next planting time. The seed quality i.e. moisture content (%), germination rate (%), dry weight (g) of seedlings and vigour index were measured at the end of storage period. The average germination percentage of the initial seed lot was 90% and moisture content was 9%. Among the three fungicides, Bavistin DF showed higher values for germination percentage (91.3% in 2004 and 92.7% in 2005), dry weight (0.70 g in 2004 and 0.67 g in 2005) and vigour (63.8 in 2004 and 62.1 in 2005).Jahangirnagar University J. Biol. Sci. 5(2): 51-56, 2016 (December)

scholarly journals Effect of harvesting stages on the seed quality of lentil (Lens culinaris L.) during storage

1970 ◽  
Vol 34 (4) ◽  
pp. 565-576 ◽  
Author(s):  
A Khatun ◽  
G Kabir ◽  
MAH Bhuiyan
Keyword(s):  
Root Length ◽  
Seed Quality ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Seed Technology ◽  
Seedling Length ◽  
Vigour Index ◽  
Harvesting Stage

Laboratory experiments were carried out during August to September 2004 and 2005 at the Seed Technology Laboratory, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh to determine the effects of harvesting stages on the seed quality of lentil. Lentil seeds of three varieties were harvested at three stages at 7-day intervals 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). All the seeds were stored in earthen pot until conducting the laboratory study. Non-significant variation was observed in three varieties of lentil for most of the parameters studied. The highest germination percentage, root length, shoot length, seedling length and vigour index (vigour index-I and vigour index-Il) were observed in BARI Masur-4, and the lowest in BARI Masur-2. Harvesting stage had significant effect on some parameters studied. Seeds 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, root length, shoot length, seedling length and vigour index (vigour index-I and vigour-Il) in both the years. BARI Masur-4 seeds collected at H2 stage recorded the highest dry weight and vigour index-I in both the years and vigour index-Il in 2004. Key Words: Lentil; harvesting stage; storage; seed quality. DOI: 10.3329/bjar.v34i4.5833Bangladesh J. Agril. Res. 34(4) : 565-576, December 2009

scholarly journals Physiological and Biochemical Assesement of Chickpea and Lentil Grown in Different Agroclimatic Zones of Bihar

2020 ◽  
pp. 68-78
Author(s):  
Kumari Rajani ◽  
Vikash Kumar ◽  
Shashi Bhusan Kumar ◽  
Anand Kumar ◽  
Ravi Ranjan Kumar ◽  
...  
Keyword(s):  
Biochemical Analysis ◽  
Seed Quality ◽  
Germination Percentage ◽  
Seed Moisture ◽  
Seedling Length ◽  
Vigour Index ◽  
Biochemical Evaluation ◽  
Agroclimatic Zones ◽  
Physiological And Biochemical

The present study was conducted to evaluate the seed quality of chickpea (cv. PG-186) and lentil (cv. HUL-57) seed samples collected from randomly selected districts of different agroclimatic zones of Bihar. The seed quality was assessed based on their physiological (seed moisture, seed germination, seedling length, vigour index, etc.) and biochemical enzymes (SOD, POX and CAT) parameters. Based on the physiological and biochemical evaluation, the chickpea seed sample collected from the Sheikhpura district was found significantly high quality (96.3% germination percentage) among all, while seeds collected from Begusarai (76.7%) and Darbhanga (77.7%) districts exhibited lowest germination percentage. The germination and vigour of lentil seed revealed that the sample of Patna district was having the highest germination percentage (98.7%) while seeds collected from Katihar and Rohtas district exhibited lowest germination percentage (66% and 74.3% respectively). In the case of biochemical analysis of both chickpea and lentil seed samples, higher SOD, POX and CAT activities were observed in seeds in which the highest germination percentage was recorded. On the basis of the results of chickpea and lentil seed samples, the seed lots were categorized into high, mid and low vigour. Among chickpea, the seed samples of Sheikhpura, Patna, Munger, Bhagalpur, Lakhisarai, and Jehanabad were categorized as high vigour; while seeds of Darbhanga and Begusarai district were categorized as low vigor. Similarly, in case of lentil the seed samples of Patna, Munger, Bhagalpur, Sheikhpura, Lakhisarai, and Khagaria were categorized as high vigour; while seeds of Rohtas and Kathiahr district were categorized into low vigor. This study will be helpful to the farmers and pulses growers in order to enhance the seed quality for getting higher production in respective districts.

Yield and Seed quality of barley (Hordeum vulgare L.) as affected by variety, nitrogen level and harvesting time

2014 ◽  
Vol 2 (2) ◽  
pp. 93-100
Author(s):  
Shahnaj Yesmina ◽  
Moushumi Akhtarb ◽  
Belal Hossain
Keyword(s):  
Grain Yield ◽  
Seed Weight ◽  
Seed Quality ◽  
Quality Parameters ◽  
Nitrogen Level ◽  
Yield Attributes ◽  
Harvesting Time ◽  
Nitrogen Levels ◽  
Vigour Index

The experiment was conducted to find out the effect of variety, nitrogen level and harvesting time on yield and seed quality of barley. The treatments used in the experiment consisted of two varieties viz. BARI Barley 4 and BARI Barley 5, three harvesting time viz. 35, 40 and 45 Days after Anthesis (DAA) and nitrogen levels viz. 0, 70, 85 and 100 kg N ha-1 . The experiment was laid out in a spilt- spilt-plot design with three replications assigning the variety to the main plot, harvesting time to the sub-plots and nitrogen level to the sub-sub plots. Variety had significant effects on the all yield attributes except fertile seeds spike-1 . Seed quality parameters viz. normal seeds spike-1 , deformed seeds spike-1 , germination (%) and vigour index were statistically significant. The variety BARI Barley 5 produced higher grain yield and seed quality than BARI Barley 4. Grain yield from BARI Barley 5 and BARI Barley 4 were 4.59 t ha-1 and 4.24 t ha-1 , respectively. Significantly, the highest 1000-seed weight (46.90 g) was produced by BARI Barley 5 than (37.90 g) BARI Barley 4. The result revealed that harvesting time had significant effect on yield and yield attributes and seed quality parameters. Seed yield was highest (4.65 t ha-1 ) when the crop harvested at 40 DAA and it was increased linearly from 35 DAA. Maximum quality seed and 1000-seed weight (43.20 g) was obtained when the crop harvested at 40 DAA. All the yields, yield attributes and seed quality parameters were significantly influenced by nitrogen levels. The highest grain yield (5.14 t ha-1 ) was obtained when BARI Barley 5 variety was fertilized by 100 kg N ha-1 and the lowest (3.14 t ha-1 ) was obtained from control treatments. Normal seeds spike-1 , vigour index, germination (%) were better at 85 kg N ha-1 in variety of BARI Barley 5 than BARI Barley 4. So it can be concluded that BARI Barley 5 showed better result when fertilized with 100 kg N ha-1 and harvested at 40 DAA for getting maximum yield and 85 kg N ha-1 and harvested at 40 DAA for getting better quality seed.

Lethal Dose (LD50) Fixation and Sensitivity of Fenugreek (Trigonellafoenum-graecumL.) to Gamma Radiation for Induction of Mutation

2017 ◽  
Vol 4 (04) ◽  
Author(s):  
ANURADHA PATEL ◽  
POONAM VERMA ◽  
SHARDA CHOUDHARY ◽  
ARVIND KUMAR VERMA
Keyword(s):  
Genetic Variability ◽  
Gamma Rays ◽  
Growth Parameters ◽  
Seedling Survival ◽  
Lethal Dose ◽  
Germination Percentage ◽  
Mutation Breeding ◽  
Vigour Index ◽  
Small Flower ◽  
Dose Dependent

Fenugreek (Trigonella foenum-graecumL.) is an annual crop, mainly used as a spiceand leafy vegetable crop in many parts of the world. Classical breeding in fenugreek is restricted due to its low genetic variability and small flower size which hamper manual emasculation and pollination. Mutation breeding is an effective way to enrich genetic variability in crop plants. An experiment was conducted to determine the lethal dose of the physical mutagen gamma rays in fenugreek. The dry seeds of fenugreek were exposed to different doses of gamma rays i.e. 150Gy, 200Gy, 250Gy, 300Gy and 350Gy. These irradiated seeds were sown in the Petri plates with non-irradiated seeds (control). As the dose of gamma rays increased, there was a decrease in germination percentage, seedling survival, root length, shoot length and vigour index. Among five doses of gamma rays, the maximum seed germination was observed at lowest dose 150Gy (93%), followed by 200Gy (83%), 250Gy (76%), 300Gy (76%) and 350Gy (64%). The seedling survival was decreased from 90% (in control) to 56% in 350Gy dose of gamma rays. The gamma rays dose of 150Gy gave stimulatory effect on seedlings growth. The growth parameters were dose dependent, as the dose of gamma rays increased from 200Gy to 350Gy. The gamma rays dose of 350Gy showed 64% seeds germination and 56% of seedlings survival. Therefore, it is concluded that the LD50 dose for fenugreek is close to 350Gy. This information would be highly useful for initiating mutation breeding programme in fenugreek

Sign in / Sign up

Export Citation Format

Share Document