scholarly journals Preparation Protein Hydrolysates from Fish by-product and Study Effected on Lettuce (Lactuca sativa L.) Growth, Yield, Quality and Enhanced Salt Tolerance

2019 ◽  
Vol 32 ◽  
pp. 246-255
Author(s):  
Haider M.H. Al-Malieky ◽  
Awatif N. Jerry
Keyword(s):  
Lactuca Sativa ◽  
Foliar Application ◽  
Block Design ◽  
Total Yield ◽  
Winter Season ◽  
Protein Hydrolysates ◽  
Control Treatment ◽  
Fresh Weight ◽  
Shoot Fresh Weight ◽  
Lactuca Sativa L

The experiment was carried out during the winter season 2019-2018 in Al-Hartha district, Basrah Governorate to study the effects of fish by-product prepared by Alcalase and Flavourzyme enzyme as a foliar application on lettuce (Lactuca sativa L.) yield and quality grown under salinity conditions. Fish by-product protein hydrolysate was spray-applied (3 and 6ml. L-1) additional to control treatment (spraying with water) referred to (T0-T4) at four (S4), six(S6) times after 20 days transplanting at10-day intervals. Randomized Complete Block Design (R.C.B.D.) was used as factorial experiment. Treatment means were compared by using Least Significant Differences (L.S.D.) at a probability of 0.05. The results showed that spraying with protein hydrolysates had a significant effect on most studied characters compared to control treatment. Results showed that foliar application with (T2) significantly increased the total leaves number, leaves area, carbohydrate ,proline, shoot fresh weight of plant, dry matter, total soluble solids (TSS %) and total yield additional to significantly decreased in nitrate contents, while foliar application with (T4) significantly increased in the plant height and stem height. The results showed that spraying six times (S6) were significant increases in these growth characters comparing with four sprays (S4). The interaction between treatments and spraying number show significantly increased in some characters, the (T2 S6) had the highest value shoot fresh weight 762.5g and total yield 17.899 tone.donum-1.

scholarly journals Respons Pertumbuhan Dan Produksi Dua Varietas Selada (Lactuca Sativa L.) Terhadap Pemberian Berbagai Sumber Nitrogen

1970 ◽  
Vol 5 (2) ◽  
pp. 177-182
Author(s):  
Jepriwira K. Ginting ◽  
Jonis Ginting ◽  
Nini Rahmawati
Keyword(s):  
Plant Height ◽  
Lactuca Sativa ◽  
Block Design ◽  
Organic Fertilizer ◽  
Chicken Manure ◽  
Fresh Weight ◽  
Lactuca Sativa L ◽  
Randomized Block Design ◽  
Sample Application ◽  
Number Of Leaves

The research aims to determine the growth and production response of two varieties of lettuce (Lactuca sativa L.) to the provision of various sources of nitrogen. This research was conducted in Lambar village, Tigapanah sub-district, Karo regency, Sumatera Utara Province with altitude of ± 1200 meters above sea level, which started on July to September 2017. This research used a factorial randomized block design with 2 factors namely varieties of lettuce (crop and lettuce) and sources of nitrogen (urea fertilizer, chicken manure and Liquid organic fertilizer of rabbit urine). The parameters observed were plant height, greenish leaves, crop circle, fresh weight of plant per sample and fresh weight of plant per plot. The results showed that both varieties were significantly different in the parameters of plant height, greenish leaves, the number of leaves, and the fresh weight of the plant per sample. Application of nitrogen source showed differences in plant height at 10 weeks after move planting and fresh weight of plant per sample.

scholarly journals Effect of Micronutrients Application and Spraying Yeast Extract on Yield and Yield Components of Wheat (Triticum aestivum L.)

2019 ◽  
Vol 32 (2) ◽  
pp. 95-105
Author(s):  
Miraje M.M. Al-Shamary ◽  
Kadhim H. Huthily
Keyword(s):  
Grain Yield ◽  
Yeast Extract ◽  
Foliar Application ◽  
Block Design ◽  
Winter Season ◽  
Triticum Aestivum L ◽  
Protein Yield ◽  
Control Treatment ◽  
City Centre ◽  
Biological Yield

A field experiment was conducted during winter season of 2018-2019, at Al-Qurna district (75 km north of Basrah city centre). The aim of experiment was studding the effect of five levels of micronutrients (MN), Fe, Zn, Mn, Cu, B, and Mo: 0, 2 and 4 kg. ha-1 (soil application), 500 and 1000 ppm (foliar application), and three levels of activated yeast extract (AYE): 0, 3 and 6 g. L-1, in the yield and qualitative characteristics of wheat. The experiment was carried out using randomized completely block design in a split arrangement with three replicates. The main plots contained fertilizer levels. While the sub-plot occupied by Yeast levels. The results showed that spraying 1000 ppm from the solution of MN significantly increase the number of spikes per m2 , the number of grains in the spike, grain yield and biological yield with an increase by 15.4%, 18%, 27.5 % and 35% respectively compared to the control treatment, while the concentration of 500 ppm significantly increase protein yield with an increase of 35% compared to the control treatment. The results also showed that spraying 6 g. L- 1 of AYE differ significantly and gave the highest values of spikes number per m2 , number of grains per spike , grain yield , biological yield and protein yield, with an increase by 5.84%, 7.1%, 11.4% , 11.1% and 10.9% respectively compared to the control treatment. The interaction between application of 4 kg. MN ha-1 and the level of 6 g. L-1 AYE gave a significant superiority in the number of spikes (333.9 spike m-2), while the spraying of 1000 ppm + 6 g. L-1 AYE gave the highest grain yield (8.891 ton. ha-1) and biological yield (31.827 ton. ha-1).

scholarly journals RESPONSE OF GREEN BEAN TO NITROGEN FIXING BACTERIAL INOCULATION AND MOLYBDENUM

2017 ◽  
Vol 48 (2) ◽  
Author(s):  
Al-Rukabi & Al-Jebory
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Control Treatment ◽  
Total Production ◽  
Nitrogen Fixing ◽  
Fresh Weight ◽  
Green Beans ◽  
Nitrogen Fixing Bacteria ◽  
Root Branching ◽  
Shoot Number

The experiment was conducted at the fields of the Department of Horticulture and Landscape Gardening, College of Agriculture, University of Baghdad, Aljadrya campus during the spring season of 2015 to study the response of green beans to the inoculation with nitrogen fixing bacteria including Rhizobium phaseoli, Azotobacter chroococcum, and Azospirillum brasilense and molybdenum. The experiment was carried out according to the randomized complete block design (RCBD) with three replications each included 11 treatments represent the interactions between nitrogen fixing bacteria strains, molybdenum solo application, molybdenum and bacteria strains interactions, in addition to the recommended nitrogen application and control treatment. Results were analyzed using the least significant differences (LSD) test at 5% level of significance. Results showed that treatment with all three bacteria strains and Mo (T11) gave the most significant value of leaf area and N, P, Fe, Mo in the pods which gave 59.50 dm2.plant-1, 2.24%, 0.25%, 51.67 mg.kg-1, and 0.34 mg.kg-1, respectively. However, treatment with nitrogen (T2) significantly increase potassium percentage in plant pods, root branching, and leaf chlorophyll content that reached 1.71%, 12.11 branch.plant-1, and 147.98 mg.100 g-1 fresh weight. Moreover, treatment with both R. phaseoli and A. chroococcum (T5) gave the highest root dry weight of 7.78 g.plant-1 while the treatment with both R. phaseoli and A. chroococcum and Mo (T9) gave the highest root nodular fresh weight of 633.51 mg.plant-1. Treatments with R. phaseoli alone (T4) and with both R. phaseoli and A. chroococcum (T5) significantly increased shoot number that reached 4.11 shoot.plant-1 while treatment with all bacteria strains (T7) yielded the highest pod’s weight of 5.91 g. As for the total yield, treatment with both R. phaseoli and A. chroococcum and Mo showed to significantly increase total production that gave 20.96 Ton.Ha-1.        

scholarly journals The Effect of NPK Doses and Plant Spacing on Lettuce (Lactuca sativa L.) Growth and Production

2020 ◽  
Vol 5 (2) ◽  
pp. 102-106
Author(s):  
R. Rahmawati
Keyword(s):  
Lactuca Sativa ◽  
Block Design ◽  
Plant Spacing ◽  
Fresh Weight ◽  
Lactuca Sativa L ◽  
Randomized Block Design ◽  
Lettuce Growth ◽  
The Impact

The aim of this study was to determine the impact of NPK doses and proper plant spacing in lettuce growth and production. The experiment was conducted in Wirimpalennae Village, Tempe Subdistrict, Wajo Regency from January to March 2017. The experiment employed randomized block design with 2 factor factorial namely NPK doses (300 kg/ha, 350 kg/ha, 400 kg/ha and plant spacing (20 x 25 cm, 25 x 25 cm, 25 x 40 cm). The result showed that the interaction between NPK doses and plant spacing were significantly influenced the fresh weight of lettuce. The highest yield of lettuce was 2,16 kg/Ha (12 t/Ha) produced by the combination of NPK dose (350 kg/ha) and plant spacing (25 x 25). The interaction of NPK dose and plant spacing treatments were not significantly influenced others parameters

scholarly journals Efektivitas Nilai EC (Elektrical Conductivity) Terhadap Produksi Selada Merah (Lactuca sativa L.) Varietas Red Rapid Pada Sistem Hidroponik Rakit Apung.

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Rommy Andhika Laksono
Keyword(s):  
Electrical Conductivity ◽  
Lactuca Sativa ◽  
Block Design ◽  
Fresh Weight ◽  
Hydroponic System ◽  
Floating Raft ◽  
Lactuca Sativa L ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Average Plant

This study aims to determine the effect of EC value (Electrical Conductivity) which is able to provide the best production of Red Lettuce (Lactuca sativa L.) Red Rapid Variety on the Floating Raft Hydroponic System. The experiment was conducted in a green house located in Sukaluyu Village, Telukjambe Timur District, Karawang Regency, from October to December 2016. The study used a randomized block design, consisting of 4 treatments, repeated 6 times, namely A (EC 0.5 - 1.5 mS / cm), B (EC 1.5 - 2.5 mS / cm), C (EC 2 , 5 - 3,5 mS / cm), D (EC 3,5 - 4,5 mS / cm) Data were analyzed using analysis of variance and further tests with Duncans multiple range test at 5% level. The number of plants for each treatment plot was 6 plants. The experimental results show that different EC (Electrical Conductivity) values have significantly different effects on the average plant height, 7, 14, 21, 28, 35 and 42 HST, the average number of leaves 21, 28, 35 and 42 HST , average stem diameter 7, 14, 21, 28, 35 and 42 days, average leaf area per plant, and average fresh weight per plant. The EC value of 3.5 - 4.5 mS / cm gives the highest production on the average fresh weight per lettuce plant (158.66 g), equivalent to 31.73 tons / ha. 

scholarly journals Kepadatan Bakteri Total Dan Azotobacter sp Di Rizosfer Selada (Lactuca sativa L.) Setelah Aplikasi Kasing Dan Pupuk NPK

Agrologia ◽  
2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Maya Damayani ◽  
Reginawanti Hindersah ◽  
Yusuf Rahman
Keyword(s):  
Lactuca Sativa ◽  
Block Design ◽  
Fertilizer Application ◽  
Fresh Weight ◽  
Inorganic Fertilizers ◽  
Lactuca Sativa L ◽  
Randomized Complete Block Design ◽  
Lettuce Growth ◽  
Npk Fertilizer ◽  
Poor Soil

Organic matter and inorganic fertilizer application are important to maintain the existence of potential microbes in the rhizosphere and maintain the soil quality. A greenhouse experiment has been carried out to determine the effect of  vermicompost and NPK fertilizer on total bacterial and Azotobacter  population in rhizosphere and yield of lettuce (Lactuca sativa L.) grown in soil order of  Inceptisols. The experimental design was a factorial randomized complete block design with three replicates were tested three doses of vermicompost (7.5, 15 and 22.5 t ha-1) and four doses of inorganic fertilizers; NPK (300; 450; 600 and 750 kg ha-1). The results showed that there was no significant interaction between vermicompost and NPK fertilizer on either total bacterial or Azotobacter population, as well as on fresh weight of lettuce. Both vermicompost and NPK fertilizer did not affect the biological parameters. However, the application of 750 kg/ha NPK fertilizer can increased lettuce weight up to 24% compared to that of control. This study suggested that in the relatively poor soil nutrients, lettuce growth was depend on inorganic fertilizers.

Effect of Urea and Nano-Nitrogen Fertigation and Foliar Application of Nano-Boron and Molybdenum on some Growth and Yield Parameters of Potato

2020 ◽  
Vol 10 (1) ◽  
pp. 253-263
Author(s):  
Hayyawi W.A. Al-juthery ◽  
Estabraq Hilal Obaid Al-Maamouri
Keyword(s):  
Foliar Application ◽  
Growth Traits ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Acid Yield ◽  
Biological Yield ◽  
Starch Yield ◽  
Private Farm

Investigating the effect of urea and nano-nitrogen fertigation and foliar application of nano B and Mo on growth and yield of potato Solanum tuberosum L. [Rivera-A]. The study was conducted in a private farm located in the Al-Taleah area - Babylon governorate. The experiment consisted of (12) treatments consisting of separated fertigation of nano nitrogen (25% N) and urea (46% N), single treatments of leaf spraying of nano Mo (5%), Nano B (9%), nano-binary combinations (Mo+B) and (U+ Nano Mo), (U+Nano B), Nano (N+Mo), Nano (N+B), and tricombination treatments of (U+Mo+B), Nano (N+Mo+B) additional to the control treatment. Randomize Complete Block Design (RCBD) and one way simple experiment with three replicates. Fertilizers were applied at levels of 40 liters h-1 of Nano-N fertilizer (25% N) and 300 kg h-1 urea fertilizer (46% N). They were sprayed early in the morning after (40) days after planting four times. Two weeks is the period between an application and another according to the recommendation of (1) kg  h-1 nano-fertilizer of (B) and (500) g h-1 of  Mo. Fertilizers were injected and sprayed at (10, 20, 30 and 40)% of the total amount of the fertilizer were applied as the first, second, third and fourth applications, respectively. Some growth traits were tested including the chlorophyll content in the leaves, the total dry vegetative yild, the soft tubers yield, and the biological yield, proteins and ascorbic acid yield compared to the control (spray water only). The results of the Duncan test showed a significant increase in most of the studied traits of nano-tricombination (N+Mo+B) in the fresh tubers yield,  dry vegetative yield  , the biological yield, starch yield ,the total protein and ascorbic yield (37.53, 1.799, 8.138,4.152 , 481.3and 653.8 meg ha-1) respectively .compare to control (21.58 , 0.890, 4.463  ,2.323 , 366.1 and 215.5 meg ha-1) respectively.

scholarly journals EC Sensitivity of Hydroponically-Grown Lettuce (Lactuca sativa L.) Types in Terms of Nitrate Accumulation

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 315
Author(s):  
Noémi Kappel ◽  
Ildikó Fruzsina Boros ◽  
Francia Seconde Ravelombola ◽  
László Sipos
Keyword(s):  
Lactuca Sativa ◽  
Nitrate Content ◽  
Saline Condition ◽  
Fresh Weight ◽  
Nitrate Level ◽  
Nitrate Accumulation ◽  
Strong Negative Correlation ◽  
Lactuca Sativa L ◽  
Hydroponically Grown ◽  
European Markets

The goal of this research was to investigate the effect of electrical conductivity (EC) levels of the nutrient solution on the fresh weight, chlorophyll, and nitrate content of hydroponic-system-grown lettuce. The selected cultivars are the most representative commercial varieties grown for European markets. Seven cultivars (‘Sintia,’ ‘Limeira,’ ‘Corentine,’ ‘Cencibel,’ ‘Kiber,’ ‘Attiraï,’ and ‘Rouxaï’) of three Lactuca sativa L. types’ (butterhead, loose leaf, and oak leaf) were grown in a phytotron in rockwool, meanwhile the EC level of the nutrient solutions were different: normal (<1.3 dS/m) and high (10 dS/m). The plants in the saline condition had a lower yield but elevated chlorophyll content and nitrate level, although the ‘Limeira’ and ‘Cencibel’ cultivars had reduced nitrate levels. The results and the special characteristic of the lollo-type cultivars showed that the nitrate level could be very different due to salinity (‘Limeira’ had the lowest (684 µg/g fresh weight (FW)) and ‘Cencibel’ had the highest (4396 µg/g FW)). There was a moderately strong negative correlation (−0.542) in the reverse ratio among the chlorophyll and nitrate contents in plants treated with a normal EC value, while this relationship was not shown in the saline condition. Under the saline condition, cultivars acted differently, and all examined cultivars stayed under the permitted total nitrate level (5000 µg/g FW).

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