scholarly journals Efficacy of N-phenylphtalamic acid in some Solanaceae species

2005 ◽  
Vol 11 (4) ◽  
Author(s):  
S. V. S. Chauhan ◽  
H. H. Singh ◽  
H. K. Gupta
Keyword(s):  
Lycopersicon Esculentum ◽  
Capsicum Annuum ◽  
Fruit Set ◽  
Solanum Melongena ◽  
Fruit Production ◽  
The Other ◽  
Vegetable Crops ◽  
Other Hand ◽  
Solanaceae Species

: N-phenylphthalamic acid — Cl4H1 1 NO3 (Nevirol 60 WP) was successfully used for enhancing yield in some important vegetable crops namely, tomato (Lycopersicon esculentum), chilli (Capsicum annuum) and brinjal (Solanum melongena) of Solanaceae. Aqueous sprays with 0.2% and 3.0% significantly enhanced fruit production in chilli and tomato respectively. On the other hand, various treatments in brinjal failed to enhance yield significantly. The increase in yield in both tomato and chilli is largely due to increase in the number of flowers and fruit-set percentage.

Reproductive Responses of Capsicum annuum to High Temperatures

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 543c-543
Author(s):  
Ami N. Erickson ◽  
Albert H. Markhart
Keyword(s):  
Capsicum Annuum ◽  
High Temperatures ◽  
Fruit Development ◽  
Flower Development ◽  
Fruit Set ◽  
Fruit Production ◽  
Yield Reduction ◽  
Bud Size ◽  
Growth Chambers ◽  
Constant Growth

Fruit yield reduction due to high temperatures has been widely observed in Solanaceous crops. Our past experiments have demonstrated that Capsicum annuum cultivars Ace and Bell Boy completely fail to produce fruit when grown at constant 33 °C. However, flowers are produced, continually. To determine which stages of flower development are sensitive to high temperatures, pepper buds, ranging in size from 1 mm to anthesis, were exposed to high temperatures for 6 hr, 48 hr, 5 days, or for the duration of the experiment. Fruit set for each bud size was determined. Exposure to high temperatures at anthesis and at the 2-mm size stage for 2 or more days significantly reduced fruit production. To determine whether inhibition of pollination, inhibition of fertilization, and/or injury to the female or male structures prevents fruit production at high temperatures, flowers from pepper cultivars Ace and Bell Boy were grown until flowers on the 8th or 9th node were 11 mm in length. Plants were divided between 25 °C and 33 °C constant growth chambers for 2 to 4 days until anthesis. At anthesis, flowers from both treatments were cross-pollinated in all combination, and crosses were equally divided between 33 or 25 °C growth chambers until fruit set or flowers abscised. All flower crosses resulted in 80% to 100% fruit set when post-pollination temperatures were 25 °C. However, post-pollination temperatures of 33 °C significantly reduced fruit production. Reduced fruit set by flowers exposed to high temperatures during anthesis and pollination is not a result of inviable pollen or ovule, but an inhibition of fertilization or initial fruit development.

scholarly journals Effects of different levels of humic acid on seedling growth and macro and micronutrient contents of tomato and eggplant

2013 ◽  
Vol 55 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Atilla Dursun ◽  
Ismail Güvenç ◽  
Metin Turan
Keyword(s):  
Growth Rate ◽  
Humic Acid ◽  
Lycopersicon Esculentum ◽  
Root Growth ◽  
Solanum Melongena ◽  
Vegetable Crops ◽  
Egg Plant ◽  
Plant Seedlings ◽  
Different Levels ◽  
Direct Sowing

As opposed to direct sowing, production of seedlings of vegetable crops for transplanting is commonly practiced by vegetable growers. This study was undertaken to determine the effects of humic acid on the growth and the macro and micro nutrients contents in tomato (<i>Lycopersicon esculentum</i>) and eggplant (<i>Solanum melongena</i> var. <i>esculentum</i>) seedlings under greenhouse conditions. Different levels of humic acid (50, 100, 150, 200 ml l<sup>-1</sup>) were applied to growing media (peat) after transplanting of examined seedlings of the species every ten days by the time of planting. The highest growth rate for leaf stem and root growth were obtained at 50 and 100 ml l<sup>-1</sup> HA and 50, 100, 150 ml l<sup>-1</sup> HA for tomato and eggplant seedlings., respectively as compared to the control. The highest content of macro and micronu trient contents were obtained at 100 ml l<sup>-1</sup> HA and 200 ml l<sup>-1</sup> HA for tomato and egg plant seedlings, respectively as compared to the control.

Effects of mycorrhizae, established from an existing intact hyphal network, on the growth response of capsicum (Capsicum annuum L.) and tomato (Lycopersicon esculentum Mill.) to five rates of applied phosphorus

1999 ◽  
Vol 50 (2) ◽  
pp. 223 ◽  
Author(s):  
J. K. Olsen ◽  
J. T. Schaefer ◽  
D. G. Edwards ◽  
M. N. Hunter ◽  
V. J. Galea ◽  
...  
Keyword(s):  
Lycopersicon Esculentum ◽  
Capsicum Annuum ◽  
Growth Medium ◽  
Growth Response ◽  
Dry Weight ◽  
Vegetable Crops ◽  
Low Light ◽  
Growth Depression ◽  
Capsicum Annuum L ◽  
Lycopersicon Esculentum Mill

The growth response of 2 vegetable crops to 5 rates of applied phosphorus (P)in the presence or absence of an existing network of extraradical mycorrhizalmycelium was determined in 2 greenhouse pot experiments (Expt 1, autumnwinter; Expt 2, summer autumn) using a low-P growth medium (6 or 5 mgNaHCO3-extractable P/kg for Expt 1 or 2,respectively). In both experiments, capsicum(Capsicum annuum L.) and tomato(Lycopersicon esculentum Mill.) plants were grown at 0(P1 ), 9.2 (P2), 27.5(P3 ), 82.5 (P4 ), or 248(P5) mg P/kg oven-dry soil (spot-placed at sowing)within a nylon mesh (pore size 44 µm). The mesh excluded roots from theoriginal sunflower (Helianthus annuus L.) host plants,to which either live (VAM+) or killed (VAM–) mycorrhizal[Glomus etunicatum Becker & Gerdemann andGlomus mosseae (Nicol. & Gerd.) Gerdemann & Trappe] inoculum was added at sowing. The mesh did allow fungal hyphae togrow into the growth medium contained by the mesh.Whereas VAM+ plants generally had higher P concentrations in indextissues than VAM– plants at low P rates, a concomitant increase in drymatter yield was restricted to the P1 rate. AtP1 in Expt 2, the increase in the dry weight of wholeplants as a result of VAM colonisation was as large as 91.7-fold and 17.9-foldfor capsicum and tomato, respectively. Root starch analysis indicated that thelower dry matter yields of VAM+ plants than of VAM– plants at≥P2 could be attributed to insufficient photosynthateproduction by VAM+ plants to meet the carbon (C) demand of both host andendophytes within the relatively low-light environment of the greenhouse(average daily solar irradiance of 8.4 MJ/m2 forExpt 1 and 13.4 MJ/m2 for Expt 2).The growth response of vegetable crops grown within the greenhouse fromcolonisation by an established mycorrhizal mycelium appears to depend on acritical balance of P and C supply; i.e. at P1, P wasmore limiting than C, and the increased uptake of P as a result ofcolonisation of plant roots by VAM resulted in a growth response. At higher Prates, C was more limiting than P due to low light in the greenhouse, and theadditional demand for photosynthate imposed by the endophytes on the hostresulted in a growth depression relative to non-mycorrhizal plants.

scholarly journals Murcha bacteriana no estado do Amazonas, Brasil

2004 ◽  
Vol 29 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Rosalee A. Coelho Netto ◽  
Bianca G Pereira ◽  
Hiroshi Noda ◽  
Bernard Boher
Keyword(s):  
Lycopersicon Esculentum ◽  
Capsicum Annuum ◽  
Cucumis Sativus ◽  
Ralstonia Solanacearum ◽  
Moringa Oleifera ◽  
Solanum Melongena ◽  
Musa Spp ◽  
Musa Sp

Durante 1998 e 2000, a incidência de murcha bacteriana causada por Ralstonia solanacearum foi registrada em 25 municípios do estado do Amazonas. A bactéria foi encontrada nas seguintes espécies vegetais: Capsicum annuum, C. chinense, C. frutescens, Cucumis sativus, Heliconia sp., Lycopersicon esculentum, Melanthera discoidea, Moringa oleifera, Musa sp., Solanum melongena, S. gilo, e S. nigrum. Em tomateiros (Lycopersicon esculentum), a murcha bacteriana estava presente em todos os plantios. Em bananeiras (Musa spp.), a incidência do Moko foi menor nas várzeas dos rios Madeira e Negro do que nas dos rios Solimões e Amazonas. Caracterizaram-se 320 isolados de R. solanacearum, obtidos no levantamento, com relação a raça e a biovar. A biovar 1 predominou em todos os hospedeiros, com exceção de C. annuum e C. chinense, onde estirpes da biovar 3 foram maioria. Apenas 7,8% das estirpes foram da biovar N2. A sensibilidade de 56 estirpes da raça 1 a 23 bacteriocinas foi avaliada. As estirpes da biovar 3 apresentaram uma menor variabilidade, na sensibilidade a bacteriocinas do que as estirpes das biovares 1 e N2.

scholarly journals Comparative karyotype and RAPD analysis for characterizing three varieties of Lycopersicon esculentum Mill.

2013 ◽  
Vol 41 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Sheikh Shamimul Alam ◽  
Elham Ishrat ◽  
Md Yahia Zaman ◽  
Md Ahashan Habib
Keyword(s):  
Lycopersicon Esculentum ◽  
Rapd Markers ◽  
Rapd Analysis ◽  
Karyotype Analysis ◽  
The Other ◽  
Rapd Fingerprinting ◽  
Lycopersicon Esculentum Mill ◽  
Other Hand ◽  
Agriculture Research Institute ◽  
Research Institute

Three tomato varieties (Lycopersicon esculentum Mill.) viz. BARI tomato-11, BARI tomato-2 and BARI tomato-3 released from Bangladesh Agriculture Research Institute (BARI) were characterized by karyotype analysis and RAPD markers. BARI tomato-11 and BARI tomato-2 were found to possess 2n = 24 metacentric chromosomes. On the other hand, 2n = 25 metacentric chromosomes were observed in BARI tomato-3 revealing a trisomic variety. The karyotype of the three varieties was very symmetric and each of the varieties showed specific and unique RAPD fingerprinting. Therefore, based on karyotype and RAPD analysis the three tomato varieties could be characterized. DOI: http://dx.doi.org/10.3329/bjb.v41i2.13439 Bangladesh J. Bot. 41(2): 149-154, 2012 (December)

scholarly journals The Response of Eggplant (Solanum Melongena L.) Growth Planted on Raised-Bog Peatland towards the Provision of Chicken Dung and Swallow Guano

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Solanum Melongena ◽  
Fruit Weight ◽  
The Body ◽  
The Other ◽  
Optimum Dose ◽  
Average Weight ◽  
Fertilizer Treatment ◽  
Raised Bog ◽  
Other Hand ◽  
Agricultural Extensification

—Eggplant (Solanum Melongena L.) is one of the agricultural commodities needed and a kind of vegetables favored because it is not only good in the taste, it also contains potassium and vitamin A which can be beneficial for the body. Eggplant production in Indonesia is low, but the need is high. So it is necessary to increase production, one of them is conducting agricultural extensification. Agricultural extensification can be carried out on land that has not been used properly, such as raised-bog peatland. On the other hand, raised-bog peatland is marginal land that is poor in nutrients and acidic in nature, so that the condition of the peatland is not supportive for plant growth. Therefore, it is necessary to add organic materials such as chicken dung and swallow guano to support the growth and yield of eggplant on raised-bog peatland. The purpose of this study was to determine the effect of chicken dung and swallow guano and their interaction on the yield of eggplant (Solanum Melongena L.) in the raised-bog peatland. This research used a group-randomized design (GRD) with 2 factors: chicken dung and swallow guano as fertilizer with 3 equal levels (a1/w1 = 5 tons/ha; a2/w2 = 10 tons/ha; a3/w3 = 15 tons/ha). The parameter observed and measured were the yield of eggplant. The results showed that the single use of swallow guano as fertilizer had a significant effect on fruit diameter and length, the quantity of fruit for each plant, the average weight of fresh fruit, fruit weight for each plant, and fruit weight for each hectare. On the other hand, the use of chicken dung as fertilizer had a significant effect on the number of fruit per plant, fruit weight per plant, and fruit weight per hectare. The results showed that the best eggplant yield component was obtained from the addition of swallow guano fertilizer at a dose of 15 t ha-1, namely resulted in a fruit weight per plant of 541,14 g tan-1 and a total fruit weight per ha of 12,88 t ha-1. Whereas in chicken dung fertilizer treatment, the most optimum dose is 10 t ha1 which can produce eggplant fruit weight per plant of 531,56 g tan-1 and 12,66 t ha-1 in total eggplant fruit weight per ha.

scholarly journals The Amendment with Chitin and/or Chitosan Improves the Germination and Growth of Lycopersicon esculentum L., Capsicum annuum L. and Solanum melongena L.

2020 ◽  
Author(s):  
Rkhaila Amine ◽  
El Hartiti Abla ◽  
Bouziani Idrissi Mohammed ◽  
Ounine Khadija
Keyword(s):  
Lycopersicon Esculentum ◽  
Capsicum Annuum ◽  
Solanum Melongena ◽  
Germination Percentage ◽  
In Vivo Test ◽  
Capsicum Annuum L ◽  
Chitin And Chitosan ◽  
Germination And Growth

Background: Chitin and chitosan are natural products extracted from shrimp shells. They are non-toxic, biocompatible and biodegradable which favors many applications in agricultural domain. Moreover, chitin and chitosan are known as stimulators of photosynthetic rates and enhance pants growth through minerals contains (C, O, N ….). In the present study, these co-products are evaluated for their ability to stimulate the germination and growth of Lycopersicon esculentum L., Capsicum annuum L. and Solanum melongena L. Methods: The experiments were conducted at Ibn Tofail University-Kenitra, between July 2016 to January 2018. The experiments are carried out by using a germination test for the three seeds. On the other hand, the in vivo test is used to determine the effect of the biopolymers on plant growth (length, fresh and dry weights of aerial and root parts, number and weight of the obtained fruits). Result: In vitro studies reveal a promoter action of chitosan and the mixture chitin-chitosan on increasing seed germination percentage by 16%, 34% and 22%. Thus, at both 25, 50 and 100 mg/l of chitin or chitosan, increase vigor index, shoot length and root is obtained. In vivo, the effect of chitin and chitosan is limited to stimulation of the lengths, fresh and dry weights of plants. However, a highly significant increase in the number and weight of the fruits is marked by the weekly soil amendment by the chitin-chitosan mixture at 25 mg/l and 100 mg/l.

Transport of fluorescein in trichomes of Lycopersicon esculentum

1982 ◽  
Vol 60 (4) ◽  
pp. 397-402 ◽  
Author(s):  
Gregor F. Barclay ◽  
Carol A. Peterson ◽  
Melvin T. Tyree
Keyword(s):  
Lycopersicon Esculentum ◽  
Cytoplasmic Streaming ◽  
Cytochalasin B ◽  
The Other ◽  
Square Root ◽  
Inhibiting Effect ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Other Hand ◽  
Rate Limiting

Translocation of the dye disodium fluorescein (uranin) in trichomes of Lycopersicon esculentum (tomato) was nonpolar and proportional to the square root of time. Inhibition of cytoplasmic streaming by cytochalasin B had no effect on the rate of dye movement. On the other hand, disruption of plasmodesmatal connections between adjacent cells by plasmolysis strongly diminished the rate of fluorescein translocation. Subsequent deplasmolysis of the cells did not remove the inhibiting effect of plasmolysis. The data are consistent with the interpretation that dye movement proceeds by diffusion, the rate-limiting step being transport through plasmodesmatal connections.

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