EVALUATION OF Psidium guajava LEAVES AND ACETIC ACID AS NATURAL HERBICIDES FOR CONTROLLING SOME WEEDS OF Capsicum annuum CROP

2020 ◽  
Vol 27 (2) ◽  
pp. 103-117
Author(s):  
Mona Adel El-Wakeel
Keyword(s):  
Acetic Acid ◽  
Capsicum Annuum ◽  
Growth Parameters ◽  
Soil Surface ◽  
Psidium Guajava ◽  
Growth And Yield ◽  
Allelopathic Effect ◽  
Yield Traits ◽  
Acetic Acid Treatment ◽  
Leaf Powder

Allelopathy and natural products are safe non-chemical modern techniques that applied as alternative to synthetic herbicides for controlling weeds. So, two pot experiments were conducted to evaluate the allelopathic effect of Psidium guajava leaf powder (PLP) and Acetic acid 5% as a natural product on the growth and yield of Capsicum annuum plants and both associated weeds: Phalaris minor (grassy weed) and Malva parviflora (broad-leaved weed). PLP was mixed with in the soil surface at successive rates (15, 30, 45 and 60 g/pot). In the corresponding treatments PLP at the same sequenced rates was mixed with the soil then sprayed with acetic acid 5% immediately. Moreover, sole spraying of acetic acid 5% treatment was sprayed on the soil surface. All treatments were applied before transplanting directly. Results revealed that the maximum inhibition of both weeds in both seasons was recorded by PLP at 60g + Acetic acid 5% as compared to unweeded control. Concerning to C. annuum growth parameters and yield traits, sole application of PLP at successive rates is more effective than PLP at the same successive rates with acetic acid 5%. So, it was observed that PLP at 60g/pot and 45 g/pot significantly developed most of growth parameters and yield traits of C. annuum than the healthy plants in both seasons. On the contrary, acetic acid treatment alone recorded the lowest value of all growth parameters and yield traits of Capsicum annuum plants.Allelopathy and natural products are safe non-chemical modern techniques that applied as alternative to synthetic herbicides for controlling weeds. So, two pot experiments were conducted to evaluate the allelopathic effect of Psidium guajava leaf powder (PLP) and Acetic acid 5% as a natural product on the growth and yield of Capsicum annuum plants and both associated weeds: Phalaris minor (grassy weed) and Malva parviflora (broad-leaved weed). PLP was mixed with in the soil surface at successive rates (15, 30, 45 and 60 g/pot). In the corresponding treatments PLP at the same sequenced rates was mixed with the soil then sprayed with acetic acid 5% immediately. Moreover, sole spraying of acetic acid 5% treatment was sprayed on the soil surface. All treatments were applied before transplanting directly. Results revealed that the maximum inhibition of both weeds in both seasons was recorded by PLP at 60g + Acetic acid 5% as compared to unweeded control. Concerning to C. annuum growth parameters and yield traits, sole application of PLP at successive rates is more effective than PLP at the same successive rates with acetic acid 5%. So, it was observed that PLP at 60g/pot and 45 g/pot significantly developed most of growth parameters and yield traits of C. annuum than the healthy plants in both seasons. On the contrary, acetic acid treatment alone recorded the lowest value of all growth parameters and yield traits of Capsicum annuum plants.

Response of red chilli (Capsicum annuum L.) to fertigation and mulching

2017 ◽  
Vol 2 (02) ◽  
pp. 169-173
Author(s):  
G. Chandramohan Reddy ◽  
S. S. Hebbar
Keyword(s):  
Leaf Area ◽  
Capsicum Annuum ◽  
Growth Parameters ◽  
Fruit Yield ◽  
Water Soluble ◽  
Growth And Yield ◽  
Index Number ◽  
Area Index ◽  
Capsicum Annuum L ◽  
Dry Fruit

Experiments were conducted to evaluate the performance of red chilli (Capsicum annuum L.) during 2015-16 at the Division of vegetable crops, Indian Institute of Horticulture Research, Hessaraghatta, Bangalore to determine the effect of different fertigation sources and mulching on growth parameters, yield and fertilizer use efficiency (FUE). Fertigation was done both water soluble fertilizers and normal fertilizers with different doses. The results revealed that significantly higher growth and yield parameters viz., plant height (cm), number of branches per plant, leaf area and leaf area index, number of fruits per plant, length of the fruit (cm), girth of the fruit (cm), fruit weight (g) dry fruit yield per plant (g), dry fruit yield per hectare (t) were observed by the treatments viz., application of water soluble fertilizers 100 per cent (Recommended dose of fertilizers) RDF using urea, 19:19:19 and KNO3 through fertigation with mulching, followed by Normal fertilizers 100 per cent RDF using Urea, DAP, MOP through fertigation with mulching. From this investigation it is concluded that water soluble fertilizers as well as normal fertilizers fertigation with mulching ideal for maximum growth and yield of the chilli crop.

scholarly journals Effect of organic manures as INM component on growth and yield of chilli (Capsicum annuum L.)

2021 ◽  
Vol 23 (2) ◽  
pp. 223-227
Author(s):  
SAKTHIVEL B ◽  
Keyword(s):  
Capsicum Annuum ◽  
Tamil Nadu ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Organic Manures ◽  
Neem Cake ◽  
Capsicum Annuum L ◽  
Yield Parameters ◽  
Canopy Volume

A field experiment was conducted during rabi season of 2019 at farmer’s field in Panruti near Cuddalore district (Tamil Nadu) to study effect of organic manures as INM component on growth, yield and quality of chilli (Capsicum annuum L.) in a randomized block design. The treatments consisted of recommended dose of fertilizers at two levels (160:60:30 and 120:45:22.5 kg NPK ha-1) and organic manures (20 t FYM ha-1, 50 kg Bio ash ha-1, 5 t press mud granules ha-1, 20 kg Sea weed extract granules ha-1 and 5 t neem cake ha-1) and replicated three times. The growth and yield parameters of chilli were significantly influenced due to application of organic manures. Among the treatments, 75% RDF + 20 t FYM + 20 kg Sea weed extract granules + 5 t neem cake ha-1 (T8) exhibited better performances of growth and yield parameters of chilli cv. Indus 13. The maximum values of growth parameters such as plant height, leaves plant-1, branches plant-1, canopy volume, chlorophyll content in the leaves and net photosynthetic rate were observed in this treatment (T8). The yield parameters such as days to first flowering, days to 50% flowering, flowers plant-1, fruit set, fruits plant-1, fruit length, fruit girth, pericarp thickness, pulp seed ratio, single fruit weight, total fruit yield (28.18 t ha-1) and quality parameters like capsaicin content (0.76%) and ascorbic acid content (171.3 mg g-1) were highest in this treatment (T8) suggested this is the best integrated nutrient management combination for chilli. Application of 100% RDF (160 : 30 : 30 kg ha-1) proved inferior in respect of growth and yield of chilli.

Allelopathic efficiency of orange fruit waste as a natural bioherbicid in controlling canarygrass and cheeseweed infested common bean plants.

2020 ◽  
Vol 27 (2) ◽  
pp. 179-193
Author(s):  
Mona Adel El-Wakeel
Keyword(s):  
Common Bean ◽  
Growth Parameters ◽  
Soil Surface ◽  
Inhibitory Effect ◽  
Yield Traits ◽  
Orange Peels ◽  
Bean Plants ◽  
Orange Fruit ◽  
Canary Grass ◽  
Common Bean Plants

This study was conducted to evaluate the bioherbicidal properties of orange peelsagainst canary grass and cheeseweed mallow and the response of common bean plants.Two successive pot experiments were conducted with twelve treatments. The first fourtreatments were applied by incorporating of orange peels powder with the soil surface atsuccessive rates (10, 20, 30 and 40 g/pot) one week pre-sowing of common bean. Inthe other corresponding four treatments, the orange peels powder was incorporated withthe soil surface at the same rates but directly at the same time with sowing of commonbean seeds. Additionally, four untreated control treatments were applied for comparison.The recorded results revealed the inhibitory allelopathic effects of orange peels powderon both weeds with direct relationship between the orange peels rate and it's inhibitoryeffects. However, the pre-sowing treatments were more effective than the others whichapplied at the time of sowing. Orange peels at 40g/pot at one week pre-sowing gave thehighest inhibitory effect on both weeds. This superior treatment subsequently recordedthe highest growth parameters and yield traits of common bean. Estimated phenoliccompounds, flavonoids and essential oils in orange peels may be responsible for thisinhibitory effect.

scholarly journals TiO2 Nanoparticles Enhancing Germination, Growth and Yield of Rice

2020 ◽  
pp. 25-30
Author(s):  
Keya Debnath ◽  
Aparajita Das ◽  
Bimal Das ◽  
J. Karfoma
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Yield Traits ◽  
Dose Limit ◽  
Tio2 Nps ◽  
Randomized Block Design ◽  
Almost All

Background: Titanium dioxide (TiO2) NPs are used in agriculture to increase seeds germination and seedlings growth and can improve yield by approximately 30%. The present experimental investigation demonstrated the effect of nanoparticles (NPs) Anatase - TiO2 (<100 nm size) on germination, seedling growth and yield attributing traits of rice. Methods: Rice seeds were treated with six concentrations (0, 10, 20, 50, 80 and 100 ppm) of nanoTiO2 and placed in Petri plates. Some amount was sown in the field following Randomized Block Design (RBD) with three replications for each treatment. Results: Application of TiO2 NPs significantly enhanced germination, seedling growth and yield traits for most of the concentrations as compared to the control. About 85% significant improvement of seed germination occurred by 20 ppm of TiO2 NPs. The results of TiO2 treated samples were higher in almost all the growth parameters, but the treatment was highly effective for 20 ppm followed by 50 ppm for grain yield. The response to nano-treatment on seed germination along with yield traits suggested the optimum TiO2 dose limit on these characters on rice.

scholarly journals Efficacy of Guava (Psidium guajava) Mulch Allelopathy in Controlling Tomato (Solanum lycopersicum) Weeds

2020 ◽  
Vol 1 (1) ◽  
pp. 7-11
Author(s):  
Anthony Simiyu Mabele ◽  
Millicent Florence Owuor Ndong’a
Keyword(s):  
Solanum Lycopersicum ◽  
Block Design ◽  
Soil Surface ◽  
Psidium Guajava ◽  
Management Tool ◽  
Control Treatment ◽  
Allelopathic Effect ◽  
Tomato Production ◽  
Plant Parts ◽  
Impact On Biodiversity

Tomato (Solanum lycopersicum) is one of the most important vegetable crop whose production involves the use of synthetic herbicides with detrimental impact on biodiversity. Allelopathy effectively controls horticultural crop weeds. Different plant parts (flowers, leaves, stems, bark, roots) have allelopathic activity that varies over a growing season when used as mulch.  Mulching is a horticultural technique that protects the roots of plants from heat and cold by use of mulch to cover the soil surface around plants. Tomato production in Kakamega County is below 2% and weeds are ranked high among the yield reducing factors. This study assessed the allelopathic effect of guava leaves mulch type (18.0 cm thick) as a management tool for weed control in tomato crops and no mulch as control treatment with three most popular determinate tomato varieties. The mulch treatments were arranged as factorial in a Randomized Complete Block Design (RCBD) to minimize non–experimental bias. Tomato variety sub-treatments were replicated three times in the experimental plots at Masinde Muliro University of Science and Technology (00171N, 340451E). The field project was conducted during the short rains and long rains season of 2016-2017. Data obtained was subjected to analysis of variance (ANOVA) using SAS software, version 9.3 at p<0.05 confidence level. Least Significance Difference (LSD) was used to separate the means. Weed density incidence was significantly highest in control plots up to 100% and lowest in mulched plots (13.41%). Allelopathic control of weeds sustains global food and nutrition security for future generations.

scholarly journals Influence of naphthalene acetic acid (NAA) and integrated nutrient management (INM) on yield and economics attributes of chilli (Capsicum annuum L.)

2017 ◽  
Vol 9 (1) ◽  
pp. 311-315
Author(s):  
Amrita Kumari ◽  
V. K. Singh ◽  
Vikash Kumar ◽  
Vishal Nirgude
Keyword(s):  
Acetic Acid ◽  
Capsicum Annuum ◽  
Nutrient Management ◽  
Growth And Yield ◽  
Naphthalene Acetic Acid ◽  
Integrated Nutrient Management ◽  
Inorganic Fertilizers ◽  
Yield Attributes ◽  
Capsicum Annuum L ◽  
Gross Income

The present experiment was conducted to study the response of naphthalene acetic acid NAA and integrated nutrient management on yield and yield attributes as well as and economics of chilli (Capsicum annuum L.) with four levels of NAA (0 ppm, 25 ppm, 50 ppm and 75 ppm) and five levels of vermicompost (VC) along with RDF (V0-100% Recommended dose of fertilizer i.e. 120:60:60 Kg N P K /ha ), V1-100% N through Vermicompost, V2-75% N through VC + 25% (RDF), V3-50% N through VC + 50% (RDF) , V4-25% N through VC + 75% (RDF), having 20 treatment combinations. The results revealed that the combine application of 50 ppm NAA and 100% N through vermicomposti.e. P2V1 performed well in respect of fruit length (8.73 cm), fruit diameter (1.46 cm) and fruit weight (2.91 g) while the application of NAA 50 ppm + 50% N through vermicompost along with 50% RDF i.e. P2V3 gave significantly (P=0.05) maximum number of fruits/plant (73.86) and fruit yield per hectare (121.20 q) with higher gross income (Rs.2,66,640.00/ ha), net profit (Rs.1,98,946.00/ ha) and benefit - cost ratio (2.94). Therefore, it can be concluded that the combine effect of NAA 50 ppm along with 50 % N through vermicompost +50% inorganic fertilizers (RDF) gave better result regarding growth and yield attributes and also generated maximum gross income, net return and B:C ratio while the next best treatment was application of NAA 75 ppm along with 25 % N through vermicompost + 75 % inorganic fertilizers (RDF).

scholarly journals Effect of pruning systems on growth and yield traits of greenhouse grown bell pepper (Capsicum annuum L. var. grossum)

2018 ◽  
Author(s):  
Ismeet Singh ◽  
Amarjeet Kaur
Keyword(s):  
Plant Growth ◽  
Plant Height ◽  
Capsicum Annuum ◽  
Block Design ◽  
Growth And Yield ◽  
Yield Traits ◽  
Quality Traits ◽  
Capsicum Annuum L ◽  
Yield And Quality ◽  
Randomized Block Design

The present investigation was carried out during 2016-2017 with the objective of observing the effect of the tested systems of pruning on vegetative, fruiting, yield and quality traits of capsicum varieties. The experiment was laid out in a factorial randomized block design with four replications and nine treatments with Indra, Bachata and Inspiration cultivars of capsicum pruned with three intensities i.e. two shoots, four shoots and un-pruned (control). The results showed that the two stem pruning treatment significantly affected the plant growth and flowering characteristics in terms of plant height (194.75cm), number of days to first flower (20.25 days) in cv. Indra. Same cultivar when left un-pruned recorded more number of fruits per plant (23.64 fruits), but fruit yield per plant (4.14kg) was observed in four stem pruning treatment in Indra cultivar of capsicum than other cultivars tried.

scholarly journals Responses of Water and Pigments Status, Dry Matter Partitioning, Seed Production, and Traits of Yield and Quality to Foliar Application of GA3 in Mungbean (Vigna radiata L.)

2021 ◽  
Vol 2 ◽  
Author(s):  
Mohammad Sohidul Islam ◽  
Md. K. Hasan ◽  
Bushra Islam ◽  
Nowrin Akhter Renu ◽  
Mohammad A. Hakim ◽  
...  
Keyword(s):  
Protein Content ◽  
Vigna Radiata ◽  
Foliar Application ◽  
Growth Parameters ◽  
Growth And Yield ◽  
High Yield ◽  
Yield Traits ◽  
Quality Traits ◽  
Dry Matter Partitioning ◽  
Yield And Quality

This study evaluated the role of gibberellic acid [GA3; (0, 100, 200, and 300 ppm)] in modulation of the growth, physiology, yield, and quality traits in two varieties (BARI Mung-6 and BARI Mung-8) of mungbean (Vigna radiata L.). Irrespective of the two varieties (BARI Mung-6 and BARI Mung-8), 100, 200, and 300 ppm of GA3 differentially modulated the tested parameters (relative water content, RWC; photosynthetic pigments: chlorophyll a, chlorophyll b, and carotenoids; growth parameters: fresh and dry weights of leaves, petioles, stems, and roots; yield contributing traits such as plant height, number of pods plant−1, number of grains pod−1, pod length, and 100-grain weight; quality traits such as grain nitrogen and protein). However, compared to the lowest GA3 (100 ppm) and the highest GA3 (300 ppm), the moderate concentration of GA3 (200 ppm) led to highest values of leaf-RWC, where this parameter exhibited 16.1 and 13.4% increase in BARI Mung-8 and BARI Mung-6, respectively. Similarly, the tested herein growth parameters and the yield traits significantly increased up to the foliar application of the moderate GA3 concentration (200 ppm), and thereafter these traits decreased with 300 ppm GA3. The 200 ppm-led changes in the growth and yield traits were significantly higher in BARI Mung-8 when compared to BARI Mung-6. Considering the quality traits, GA3 positively influenced the nitrogen and protein content in grains, where 200 ppm of GA3 led to increases of 25.2% in N, and 17.7% in protein over control in BARI Mung-6; whereas, BARI Mung-8 exhibited 28.3% in N, and 18.3% in protein with 200 ppm GA3 over control. Overall, BARI Mung-8 significantly responded to the foliar supply of 200 ppm GA3 when compared to BARI Mung-6. Hence, in order to high yield and grain protein content, the application of 200 ppm GA3 may be applied in V. radiata before and during flowering. The major mechanisms underlying the responses of the water relation, growth, and yield traits to the GA3 concentrations need to be explored.

scholarly journals Effects of Different Rates of Cattle Manure on Growth, Yield and Quality of Pepper (Capsicum annuum L.) in a Sub-tropical Environment of Eswatini (Swaziland)

2019 ◽  
pp. 1-7
Author(s):  
Tandzisile Z. Mabuza ◽  
Michael T. Masarirambi ◽  
Kwanele A. Nxumalo ◽  
Paul K. Wahome
Keyword(s):  
Capsicum Annuum ◽  
Growth Parameters ◽  
Block Design ◽  
Growth Yield ◽  
Application Rate ◽  
Cattle Manure ◽  
Growth And Yield ◽  
Green Pepper ◽  
Capsicum Annuum L ◽  
To Come

Green pepper (Capsicum annuum L.) is an important vegetable in the Kingdom of Eswatini. However, there is rare information on pepper production using cattle manure.  The experiment was conducted at the University of Swaziland, Luyengo Campus, in the Horticulture Department Lath-house to determine the effects of different rates of cattle manure on the growth and yield of green pepper in order to come up with a suitable application rate for green pepper. Cattle manure was applied at different rates of 20, 40, 60 and 80 tons/ha in a Randomized Complete Block Design, while 2:3:2 which was used as a control was applied at 150 kg/ha. For every increase in the application level/rate of the cattle manure, there was a considerable increase in the growth parameters that were measured. Results obtained from this experiment indicate that applying cattle manure at 80 tons/ha gave relatively higher yields. This cattle manure rate can be used by farmers in green pepper production.

EFFECT OF DIFFERENT DOSES OF BORON ON GROWTH AND YIELD OF OFF-SEASON CAULIFLOWER (BRASSICA OLERACEA VAR. BOTRYTIS) IN ARGHAKHANCHI, NEPAL

2020 ◽  
Vol 1 (1) ◽  
pp. 12-17
Author(s):  
Srijana Pandey ◽  
Sapana Parajuli ◽  
Biplov Oli ◽  
Surya Dhungana
Keyword(s):  
Brassica Oleracea ◽  
Growth Parameters ◽  
Block Design ◽  
Leaf Length ◽  
Growth And Yield ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Net Returns ◽  
Benefit Cost ◽  
Different Doses

The research was conducted at Beltari Sandhikharka-10, Arghakhanchi district to study about the effect of various doses of boron on growth and yield attributing characters of cauliflower (Brassica oleracea var. botrytis) during off-season from February to June in 2020. Five treatments; B0 (control/no application), B1: 2kg/ha, B2: 4kg/ha, B3: 6kg/ha, B4: 8kg/ha which are the different doses of boron application were laid out in Randomized Complete Block Design (RCBD) with 4 replications. The growth parameters like plant height, number of leaves per plant leaf length and leaf breadth of largest leaf were recorded multiple times with 15 days interval. Days to curd initiation and Days from curd initiation to harvest were recorded by regular field observation. The yield parameters; curd weight with leaves, Marketable curd weight, average curd yield, incidence of hollowing were recorded during harvest. The economics from application of boron doses in cauliflower production was obtained in terms of cost of cultivation, gross returns, net returns, and benefit cost ratio. The result showed that the growth and yield attributing characters of cauliflower were significantly affected by application of boron in which the value of these parameters was found significantly higher in B1 followed by other treatments. The average curd yield of cauliflower in B1 was found to be 12.39 mt/ha which was 48.92% higher than that of B0 with curd yield 8.32 mt/ha. Similarly, the net return was found significantly the highest in B1 and the lowest in B0. The result showed that application of boron in the range of 2-4 kg/ha is preferred to control and higher doses in respect of both productivity and economics.

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