scholarly journals Exogenous Application of Amino Acids Improves the Growth and Yield of Lettuce by Enhancing Photosynthetic Assimilation and Nutrient Availability

Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 266 ◽  
Author(s):  
Shumaila Khan ◽  
Hongjun Yu ◽  
Qiang Li ◽  
Yinan Gao ◽  
Basheer Noman Sallam ◽  
...  
Keyword(s):  
Amino Acids ◽  
Plant Growth ◽  
Growth And Yield ◽  
Chlorophyll Contents ◽  
Plant Parts ◽  
Yield And Quality ◽  
Plant Area ◽  
Butterhead Lettuce ◽  
Photosynthetic Assimilation

As natural plant growth stimulators, amino acids are widely used to improve the yield and quality of crops. Several studies have illustrated the effects of different amino acids on lettuce plant parts. However, the effects of applying single amino acids on root growth remain elusive. The objective of this study was to evaluate the effect of root application of L-methionine on the growth of lettuce. In this study, two successive experiments on butterhead lettuce were conducted under hydroponic conditions. Three amino acids, L-methionine (20 mg/L), L-glycine (210 mg/L), and L-tryptophan (220 mg/L), were applied separately. L-methionine significantly increased the growth performance by 23.60%, whereas growth using L-tryptophan and L-glycine decreased by 98.78% and 27.45%, respectively. Considering the results of the first experiment, a second experiment was established with different concentrations of L-methionine (2200 mg/L, 220 mg/L, 22 mg/L, 2.2 mg/L, 0.2 mg/L, and 0.02 mg/L). The plants were allowed to grow for four weeks. Leaf width, plant area, leaf area, chlorophyll contents, etc., were evaluated. The results show that plant growth significantly improved by applying L-methionine at the lowest concentrations of 0.2 mg/L and 0.02 mg/L, which can, therefore, improve hydroponic production of lettuce and, accordingly, human nutrition.

scholarly journals The influence of NANO-GRO® organic stimulator on the yielding and fruit quality of field tomato (Lycopersicon esculentum Mill.)

2016 ◽  
Vol 28 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Elżbieta Jędrszczyk ◽  
Anna M. Ambroszczyk
Keyword(s):  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Significant Influence ◽  
Tomato Plant ◽  
Growth Yield ◽  
Growth And Yield ◽  
Marketable Yield ◽  
Yield And Quality ◽  
Lycopene Content

AbstractThe effect of different methods of NANO-GRO®application on tomato plant growth and yield and its quality was determined. Four treatments were used: soaking seeds with NANO-GRO®, plants spraying, double application: soaking seeds + plants spraying and a control without NANO-GRO®. The cultivar Mieszko F1was used for the study. A significant influence of NANO-GRO®application method on tomato plant growth, yield and quality was observed. Pre-sowing application positively influenced plant height and the thickness of the stems. The highest total and marketable yield was observed in plants whose seeds were soaked with NANO-GRO®(respectively 87.02 and 53.13 t ha−1) and in those with double application (respectively 73.48 and 45.67 t ha−1). The lowest marketable yield was found in the plants from the control (37.01 t ha−1). The highest lycopene content compared to the control was measured in fruits from plants sprayed with NANO-GRO®.

scholarly journals Effect of NPK on Plant Growth, Yield and Quality of Capsicum (Capsicum annum L.) c.v. Swarna Under Shade Net Condition

2017 ◽  
Vol 6 (3) ◽  
pp. 1085-1091 ◽  
Author(s):  
Ashish Kumar Dubey ◽  
Devi Singh ◽  
Pranjal Singh Rajput ◽  
Yogesh Kumar ◽  
Ajay Kumar Verma ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Yield ◽  
Capsicum Annum ◽  
Yield And Quality

scholarly journals Biofumigation efficacy of spider plant (Cleome gynandra L.) accessions on nematode control in tuberose (Polianthes tuberosa L.)

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Stella Jerono Keter ◽  
Samuel Nyalala ◽  
Joshua Ogweno
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Research Field ◽  
Growth And Yield ◽  
Yield And Quality ◽  
Flower Yield ◽  
Cleome Gynandra ◽  
Randomized Complete Block Design ◽  
Spider Plant

Tuberose (Polianthes tuberosa L.) is a perennial summer flower grown by smallholders in Kenya for export. However, its production and export volumes have declined drastically due to nematodes infestation. This study evaluated the effect of Cleome gynandra accessions on nematode management on tuberose. Experiment was conducted at the Horticulture Research Field, Egerton University, Kenya using a randomized complete block design with four replications. The treatments were: five accessions of C. gynandra namely ‘Simlaw’, ‘Egerton’, ‘Taastrup’, ‘PS’ and ‘IP8’, applied at 6 kg/m2 and compared with Brassica napus, solarization and untreated control. Data was collected on growth and yield parameters, nematode infestation and quality of tuberose. Data collected was subjected to analysis of variance at p≤0.05 and means separated using Tukey’s test. Biofumigation with Cleome gynandra accessions helped to reduce nematode population by 34%, gall numbers by 83% and galling index by be 96% when compared with the control. Use of biofumigation helped to improve plant height and leaf number of tuberose by 16% and 87%, respectively, when compared with the control. Use of biofumigation helped to improve spike length by 32%, marketable spikes by 80%, and flower yield by 90% and reduced nonmarketable spikes by 95% when compared with the control. Based on the above results, use of Cleome gynandra accessions and other biofumigants such as rape seed can be used to manage nematodes and improve growth, yield and quality of tuberose. 

scholarly journals Gibberellic Acid Induced Changes on Growth, Yield, Superoxide Dismutase, Catalase and Peroxidase in Fruits of Bitter Gourd (Momordica charantia L.)

Horticulturae ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 72
Author(s):  
Mazhar Abbas ◽  
Faisal Imran ◽  
Rashid Iqbal Khan ◽  
Muhammad Zafar-ul-Hye ◽  
Tariq Rafique ◽  
...  
Keyword(s):  
Plant Growth ◽  
Gibberellic Acid ◽  
Growth Yield ◽  
Growth And Yield ◽  
Bitter Gourd ◽  
Antioxidant Enzyme Activities ◽  
Yield And Quality ◽  
Dual Action ◽  
Induced Changes ◽  
The Impact

Bitter gourd is one of the important cucurbits and highly liked among both farmers and consumers due to its high net return and nutritional value. However, being monoecious, it exhibits substantial variation in flower bearing pattern. Plant growth regulators (PGRs) are known to influence crop phenology while gibberellic acid (GA3) is one of the most prominent PGRs that influence cucurbits phenology. Therefore, a field trial was conducted at University of Agriculture Faisalabad to evaluate the impact of a commercial product of gibberellic acid (GA3) on growth, yield and quality attributes of two bitter gourd (Momordica charantiaL.) cultivars. We used five different concentrations (0.4 g, 0.6 g, 0.8 g, 1.0 g, and 1.2 g per litre) of commercial GA3 product (Gibberex, 10% Gibberellic acid). Results showed that a higher concentration of gibberex (1.0 and 1.20 g L−1 water) enhanced the petiole length, intermodal length, and yield of bitter gourd cultivars over control in Golu hybrid and Faisalabad Long. A significant decrease in the enzyme superoxidase dismutase, peroxidase, and catalase activities were observed with an increasing concentration of gibberex (1.0 and 1.20 gL−1 water) as compared to control. These results indicate that the exogenous application of gibberex at a higher concentration (1.2 g L−1) has a dual action in bitter gourd plant: i) it enhances the plant growth and yield, and ii) it also influenced the antioxidant enzyme activities in fruits. These findings may have a meaningful, practical use for farmers involved in agriculture and horticulture.

Effect of dietary protein and energy on growth and fibre characteristics of british angora goats

1990 ◽  
Vol 1990 ◽  
pp. 68-68
Author(s):  
Md. Shahjalal ◽  
H. Galbraith ◽  
J.H. Topps
Keyword(s):  
Dietary Protein ◽  
Block Design ◽  
Live Weight ◽  
Fibre Production ◽  
High Energy ◽  
Metabolizable Energy ◽  
Growth And Yield ◽  
Yield And Quality ◽  
Angora Goats

There is increasing interest in the diversification of animal production systems to produce products which are not in surplus nationally. Fine fibre production from goats is one such subject area. Previous studies (e.g. Huston, 1980; Calhoun et al, 1988) in other countries have suggested that the yield and quality of mohair fibre may be influenced by nutritional factors such as protein and energy. The aim of the work reported here was to investigate the effects of differences in dietary protein and energy on body growth and yield and quality of mohair fibre produced by British Angora goats.Twenty four male castrate British Angora goats of Australasian origin with an initial liveweight of 23.5 kg were used in a 112 day study. The goats were housed in individual pens and introduced to pelleted diets over a period of three weeks. The animals were allocated to four dietary treatments by randomised block design according to liveweight. The animals received diets containing, per kg dry matter, concentrations of estimated metabolizable energy of 10.2 MJ (LE) or 11.9 MJ (HE) and crude protein concentrations of 108 g (LP) or 180 g (HP) in a 2 x 2 factorial experiment. The animals were offered high energy diets (30 g/kg liveweight) which were increased when live weight increased by 1.0 kg. The goats on the low energy rations were offered amounts equivalent to 0.85 of the ME intake from HE diets. The live weight gain and food intake were recorded weekly.

Vermiculture in Greenhouse Plants, Field Crop Production, and Hydroponics

2019 ◽  
Author(s):  
Norman Q. Arancon ◽  
Zachary Solarte
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Raw Materials ◽  
Organic Amendments ◽  
Careful Consideration ◽  
Organic Wastes ◽  
Growth And Yield ◽  
Economic Activities ◽  
Pests And Diseases

Vermiculture is the art, science, and industry of raising earthworms for baits, feeds, and composting of organic wastes. Composting through the action of earthworms and microogranisms is commonly referred to as vermicomposting. Vermiculture is an art because the technology of raising earthworms requires a comprehensive understanding of the basic requirements for growing earthworms in order to design the space and the system by which organic wastes can be processed efficiently and successfully. It is a science because the technology requires a critical understanding and consideration of the climatic requirements, nutritional needs, growth cycles, taxonomy, and species of earthworms suitable for vermicomposting in order to develop a working system that supports earthworm populations to process successfully the intended organic wastes. The nature of the organic wastes also needs to be taken into careful consideration, especially its composition, size, moisture content, and nutritional value, which will eventually determine the overall quality of the vermicomposts produced. The quality of organic wastes also determines the ability of the earthworms to consume and process them, and the rate by which they turn these wastes into valuable organic amendments. The science of vermiculture extends beyond raising earthworms. There are several lines of evidence that vermicomposts affect plant growth significantly. Vermiculture is an industry because it has evolved from a basic household bin technology to commercially scaled systems in which economic activities emanate from the cost and value of obtaining raw materials, the building of systems, and the utilization and marketing of the products, be they in solid or aqueous extract forms. Economic returns are carefully valued from the production phase to its final utilization as an organic amendment for crops. The discussion revolves around the development of vermiculture as an art, a science, and an industry. It traces the early development of vermicomposting, which was used to manage organic wastes that were considered environmentally hazardous when disposed of improperly. It also presents the vermicomposting process, including its basic requirements, technology involved, and product characteristics, both in solid form and as a liquid extract. Research reports from different sources on the performance of the products are also provided. The discussion attempts to elucidate the mechanisms involved in plant growth and yield promotion and the suppression of pests and diseases. Certain limitations and challenges that the technology faces are presented as well.

Effects of Planting on Different Sides of the Ridge on Emergence, Plant Growth, Yield and Quality of Potato (Solanum tuberosum) in the Sudan

1989 ◽  
Vol 25 (3) ◽  
pp. 409-415 ◽  
Author(s):  
A. M. Ali
Keyword(s):  
Solanum Tuberosum ◽  
Plant Growth ◽  
Soil Temperature ◽  
Growth Yield ◽  
Potato Tubers ◽  
Yield And Quality ◽  
Southern Side ◽  
Northern Side

SUMMARYThe effects of planting potato tubers on four different sides of two ridge orientations was investigated. Soil temperature was coolest on the northern side, followed by the western, eastern and southern sides. Fifty percent emergence took place in 24, 42 and 49 days for tubers planted on the northern, western and eastern sides, respectively. Only 22% of tubers planted on the southern side emerged. The best yield and quality was obtained by planting on the northern side, followed successively by the eastern, western and southern sides of the ridge.

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