scholarly journals Beneficial microorganisms enhance the growth of basil (Ocimum basilicum L.) under greenhouse conditions

2021 ◽  
Vol 49 (4) ◽  
pp. 12452
Author(s):  
Yonger TAMAYO-AGUILAR ◽  
Porfirio JUAREZ-LOPEZ ◽  
Jose A. CHAVEZ-GARCIA ◽  
Iran ALIA-TEJACAL ◽  
Dagoberto GUILLEN-SANCHEZ ◽  
...  
Keyword(s):  
Chlorophyll Concentration ◽  
Ocimum Basilicum ◽  
Leaf Length ◽  
Organic Production ◽  
Stem Length ◽  
Greenhouse Production ◽  
Beneficial Microorganisms ◽  
Growth Increase ◽  
Management Alternatives ◽  
Spad Readings

The integration of healthy management alternatives continues to be a challenge in the organic production of aromatic and medicinal plants, including of basil (Ocimum basilicum L.). The objective of this work was to evaluate the effects of three beneficial microorganisms (1) Trichoderma harzianum (TH), (2) Bacillus subtilis (BS), (3) Glomus cubense (GC) and their combinations on the growth of basil. A completely randomised design was used with a control and seven treatments with six repetitions. The control (1) was with no microorganism inoculation and the seven treatments were inoculations with the single or the combined microorganisms as follows: (2) TH, (3) BS, (4) GC, (5) TH+BS, (6) TH+GC, (7) BS+GC and (8) TH+BS+GC. Three harvests of fresh biomass were made and a number of growth variables were recorded: fresh and dry biomass, leaf area, number of commercial stems, stem length and thickness, Leaf length and width, relative chlorophyll concentration (SPAD readings) and the levels of N, P, K, Ca and Mg. Overall growth increased by 58% with TH+GC compared with the control and by 55% compared with the single inoculations (TH, BS and GC) and with the triple inoculation (TH+BS+GC). A growth increase of 51% was obtained with BS+GC compared with the control and of 38% compared with the other treatments. These results indicate co-inoculation of TH+GC or of BS+GC are useful alternative managements to increase greenhouse production of basil.

Development of REDCAHOR—a Vegetable Research and Development Network in Central America

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 531b-531
Author(s):  
J. Nienhuis
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Central America ◽  
Organic Production ◽  
Vegetable Production ◽  
Greenhouse Production ◽  
Short Course ◽  
Development Network ◽  
Breeding And Genetics ◽  
The Impact

REDCAHOR is the Spanish acronym for “Central American Vegetable Network.” Vegetables have traditionally been an important source of nutrients and vitamins in the diet in Central America. Vegetable production in this region is now changing as local consumers are demanding increased diversity and quality and international markets are expanding with “non-traditional” vegetable exports. The present restraints to expanded research and production of vegetables in the region include i) need for cultivars with increased insect and disease resistance, ii) poor and excessive use of pesticides, and iii) inadequate postharvest technology. In addition, there are few vegetable researchers in the region and response to their activities have not been coordinated. The goal of REDCAHOR is to develop a regional network of national institutions that can prioritize agendas and cooperate to maximize the impact of available resources. Establishment of a system of regional trials and cooperative regional programs in integrated pest management and plant breeding are currently under development. A series of regional workshops are planned, including integrated pest management, maintenance and use of genetic resources, organic production, and greenhouse production. In addition, REDCAHOR, in collaboration with the Escuela Agricola Panamerica in Honduras, will offer regional short-course training in vegetable breeding and genetics as well as vegetable production and management, including integrated pest management.

scholarly journals Reducing Substrate Moisture Content during Greenhouse Production of Poinsettia Improves Postproduction Quality and Economic Value

HortScience ◽  
2018 ◽  
Vol 53 (11) ◽  
pp. 1618-1628
Author(s):  
Yanjun Guo ◽  
Terri Starman ◽  
Charles Hall
Keyword(s):  
Moisture Content ◽  
Economic Value ◽  
Growth Index ◽  
Dry Weight ◽  
Leaf Number ◽  
Stem Length ◽  
Total Production ◽  
Greenhouse Production ◽  
Ethylene Concentration ◽  
Substrate Moisture

The objective was to determine the effect of substrate moisture content (SMC) during poinsettia (Euphorbia pulcherrima) greenhouse production on plant quality, postproduction longevity, and economic value. Two experiments were conducted, one in 2016 with ‘Freedom Red’ and the other in 2017 with ‘Christmas Eve Red’. Treatments included two SMC levels (20% or 40%) applied in four timing of application combinations. Total production (TP) time was 14 (2016) or 12 (2017) weeks in which vegetative production (VP) occurred from week 33 (2016) or 35 (2017) to week 39 and reproductive production (RP) continued from week 40 to 47. The four timing of application treatments were 40/40 = TP at 40% SMC; 20/40 = VP at 20% + RP at 40%; 40/20 = VP at 40% + RP at 20%; 20/20 = TP at 20% SMC. After simulated shipping in the dark, plants were evaluated in a simulated retail environment with two packaging treatments: no sleeve covering or plastic perforated plant sleeves covering container and plant. At the end of greenhouse production, plants grown in 20% SMC during RP (20/20 and 40/20) had shorter bract internode length, stem length, and smaller growth index (GI), decreased shoot and root dry weight (DW), and bract and leaf surface area compared with those in 40% SMC during RP (40/40 and 20/40). Photosynthetic rate was higher when plants were watered at 40% SMC regardless of production stage compared with those in 20% SMC. Leaf thickness, petiole thickness, total bract and leaf number were unaffected by SMC treatments. Plants in 20% SMC during RP (20/20 or 40/20) had earlier bract coloring despite days to anthesis being the same for all SMC treatments. Compared with 40/40, 40/20, and 20/20 could save 44.2% or 43.6%, respectively, irrigation and fertilizer usage, and 39.1% and 47.8%, respectively, labor time. During postharvest, ethylene concentration was unaffected by packaging method. Sleeved plants, regardless of SMC treatment, received lower light intensity in the middle of the plant canopy, causing plants to have lower total leaf number due to abscission and SPAD reading at the end of postproduction. The 40/40 treatment abscised more bracts during five weeks (in 2016) of postproduction and with no sleeve had higher number of bracts with bract edge burn (BEB). In summary, reducing SMC to 20% during TP or RP reduced water usage during production and produced more compact plants with increased postproduction quality.

scholarly journals Effects of earthworms and mycorrhizal fungi on the growth of the medicinal herb Calendula officinalis (Asteraceae)

2011 ◽  
Vol 57 (No. 11) ◽  
pp. 499-504 ◽  
Author(s):  
J.G. Zaller ◽  
F. Saccani ◽  
T. Frank
Keyword(s):  
Biomass Production ◽  
Mycorrhizal Fungi ◽  
Plant Biomass ◽  
Arbuscular Mycorrhizal ◽  
Lumbricus Terrestris ◽  
Leaf Length ◽  
Stem Length ◽  
Shoot Biomass ◽  
Calendula Officinalis ◽  
Amf Inoculation

  Both earthworms and symbiotic arbuscular mycorrhizal fungi (AMF) often co-occurr in ecosystems, however very little is known on their interrelationships. Here we tested to what extent earthworms (Annelida) or AMF (Glomales) separately or in combination affect the growth of the pharmaceutical plant species, pot marigold (Calendula officinalis, Asteraceae). We conducted a greenhouse experiment using non-sterilized field soil where we manipulated the factors earthworms (addition/no addition of the vertical burrowing species Lumbricus terrestris) and AMF (addition/no addition of a mix of the four Glomus taxa G. geosporum, G. mosseae, G. intraradices, G. claroideum). Leaf length and flower stem length was significantly increased by earthworms but remained unaffected by additional AMF. The longest leaves and flower stems were observed in pots containing earthworms but no additional AMF. The number of flower buds was unaffected by earthworms but marginally significantly increased by AMF. Plant shoot biomass production was significantly higher when earthworms were present; AMF inoculation had no effect on biomass production. Root biomass production and total plant biomass production remained unaffected by earthworms or AMF. These results indicate that in soil already containing AMF earthworm addition primarily affects vegetative growth while additional AMF inoculation tended to affect reproductive plant parts.

scholarly journals Effect of different soil types on growth and production of Napier-4 at the Regional Station of BLRI

2017 ◽  
Vol 3 (2) ◽  
pp. 182-185 ◽  
Author(s):  
Mohammed Sirajul Islam ◽  
Nathu Ram Sarker ◽  
MA Habib ◽  
Md Yousuf Ali ◽  
Tahera Yeasmin
Keyword(s):  
Plant Height ◽  
Sandy Soil ◽  
Biomass Yield ◽  
Leaf Length ◽  
Production Performance ◽  
Stem Length ◽  
Soil Types ◽  
Total Biomass ◽  
Fodder Production ◽  
Normal Soil

A comparative agronomical trial was conducted to know the effect of two different soil types on growth and production performance of BLRI Napier-4 fodder production at BLRI regional station, Baghabari, Shahzadpur, Sirajganj. Soil components are the determinant factors for growing any crops or fodders. Soil samples from sandy soil and normal soil (loamy) were analazed for soil pH, nitrogen, organic matter, salinity, Ca, K, S, Zn, Pb, Co, Mg, Fe etc. at the Central Laboratory of Soil Resource Development Institute (SRDI), Dhaka. Data were recorded on plant height, stem length, leaf length, number of leaf per stem, number of till per hill, yield per hill and total biomass yield per plot. Plant height, stem length and leaf length produced in normal soil were significantly higher (p<0.001) than those produced in sandy soil. Irrespective of soil type, the plant height, stem length, leaf length, yield per hill and biomass yield per plot produced in second harvest were significantly higher (p<0.001) than those produced in first harvest. But, number of leaf per stem and number of till per hill did not differ significantly (p>0.05) between two cuttings. It can be concluded from the present findings that BLRI Napier-4 cultivar may be produced in the sandy soil.Asian J. Med. Biol. Res. June 2017, 3(2): 182-185

scholarly journals Heritability of Morphological Traits in Apple Early-ripening Full-sib and Half-sib Offspring and Its Potential Use for Assisted Selection

HortScience ◽  
2012 ◽  
Vol 47 (3) ◽  
pp. 328-333 ◽  
Author(s):  
Hassan Hajnajari ◽  
Bahaeddin Chashnidel ◽  
Kourosh Vahdati ◽  
Mohsen Ebrahimi ◽  
Alireza Nabipour ◽  
...  
Keyword(s):  
Morphological Traits ◽  
High Efficiency ◽  
Chlorophyll Concentration ◽  
Leaf Length ◽  
Breeding Program ◽  
Seedling Height ◽  
Early Screening ◽  
Narrow Sense Heritability ◽  
Early Ripening ◽  
Sib Families

To select the superior parents for the breeding program we oriented to produce new early-ripening cultivars, we evaluated more than 60 productive and vegetative characters in 108 native and imported cultivars grown in national collection for commercial apples located in Karaj, Iran, using an apple descriptor. The germination percentage of 100,000 hybrid seeds was 7% in the first year. In the second year, only 3000 from 7000 seedlings had to pass the final screening. Use of morphological markers as an early selection technique showed high efficiency in the apple breeding program. This study was conducted to determine heritability of certain morphological traits potentially used for selection of fruit early-ripening progenies in apple (Malus ×domestica Borkh.). Morphological traits in 3- and 4-year-old seedlings from 28 half-sib and 16 full-sib families were studied in 2007 and 2008, respectively. Parent–progeny correlations were analyzed using true-to-type progenies and their relative parents, all in the juvenile phase. Significant variations were observed between parental cultivars and half-sib and full-sib progenies for most of the studied traits. Positive correlations were found between seedling height and other morphological characters. A highly significant correlation (r = 0.98) was observed between branch distance along seedling stem and number of branches. The results showed that the heritability varied among the traits, ranging from moderate to high values. A high level of heritability was found in leaf chlorophyll concentration (LCC) and seedling heights in both half-sib and full-sib families. Heritability of half-sib progenies derived from the early-ripening parents was higher than the late-ripening parents. The relatively high heritability estimates for morphological traits, particularly in early-ripening cross combinations, suggested narrow-sense heritability as a criterion for early screening. The progenies of early cultivars exhibited the maximum and minimum heritability for seedling height (0.91) and leaf length (0.56), respectively. Oppositely, in the late-ripening progenies, the maximum and minimum heritability were found in LW and TD traits (0.79 and 0.42), respectively.

scholarly journals The Growth Improvement of Grammatophyllum scriptum (Lindl.) Bl. In Vitro Plantlet using Photoautotrophic Micropropagation System

2017 ◽  
Vol 21 (2) ◽  
pp. 109 ◽  
Author(s):  
Aries Bagus Sasongko ◽  
Asruwaidah Fatumi ◽  
Ari Indrianto
Keyword(s):  
Carbon Dioxide ◽  
Root Length ◽  
Unit Area ◽  
Leaf Length ◽  
Growth Increase ◽  
Photoautotrophic Micropropagation ◽  
Average Quantity ◽  
Chlorophyll A And B ◽  
Number Of Leaves

To improve the growth of Grammatophyllum scriptum (Lindl.) Bl. in vitro plantlet, a photoautotrophic micropropagation system (PMS) was developed by growing in vitro plantlet on VW medium with varying concentration of sucrose (0, 5, 10, and 20 g/L) and additional carbon dioxide from the air (bottle covered with cap or filter). The result showed that the leaf length would increase up to 6.5 cm with PMS and it would keep growing by the adding of 5 g/L sucrose. Average number of leaves increased by 6.7 strands with PMS and the addition of sucrose increased the average quantity of leaves up to 7.7 strands. Average number and root length would increase with PMS and would even increase more with 5 g/L sucrose addition. PMS with 5 g/L sucrose can increase chlorophyll a and b concentration. The number of stomata per unit area in PMS was lower than closed culture. This shows that PMS can increase the growth of G. scriptum in vitro plantlet and the growth increase would be effective if it is combined with sucrose addition.

scholarly journals Determining Optimal Production Temperature, Transplant Stage, and Postharvest Protocols for Cut ‘Esprit’ Penstemon

2014 ◽  
Vol 24 (1) ◽  
pp. 71-75 ◽  
Author(s):  
Alicain S. Carlson ◽  
John M. Dole
Keyword(s):  
Cold Storage ◽  
Stem Length ◽  
Vase Life ◽  
Cut Flower ◽  
Greenhouse Production ◽  
Optimal Production ◽  
Postharvest Treatments ◽  
Production Temperature ◽  
Locally Grown

The effects of production temperature and transplant stage on stem length and caliper of cut stems and postharvest treatments on vase life of ‘Esprit’ penstemon (Penstemon grandiflorus) were examined. Plugs transplanted with eight to nine sets of true leaves had a longer stem length (64.3 cm) at harvest than those transplanted with two to three sets (57.7 cm) or five to six sets (60.8 cm). Time to flowering from transplant shortened as production temperature increased and when transplants had a greater number of true leaves. The addition of 2% or 4% sucrose with 7 ppm isothiazolinone as a vase solution resulted in the longest vase life (9.4 days) of all treatments compared with the control (4.5 days). A holding solution increased vase life to 7.0 days for Floralife holding solution and 5.9 days for Chrysal holding solution from the 4.3 days control, although hydrating solutions and preservative brand had no effect. The use of floral foam or antiethylene agents, ethylene exposure, or sucrose pulses also had no effect on vase life. Extended cold storage lengths either wet or dry for 2 or 3 weeks caused vase life to decrease to 2.0 days when compared with 5.6 days for the unstored control and 7.6 days for 1 week storage. ‘Esprit’ penstemon may be suitable for greenhouse production and has acceptable potential as a locally grown specialty cut flower.

scholarly journals Penampilan Karakter Morfologi dan Fisiologi Tiga Kelapa Hibrida Kopyor dan Tetuanya [Performance Of Morphology And Physiology Characters Of Three Coconut Hybrids Of Kopyor and Its Parent]

Buletin Palma ◽  
2020 ◽  
Vol 21 (2) ◽  
pp. 88
Author(s):  
M Nur ◽  
Jeanne Palit ◽  
Putri Wulan Adiningrum ◽  
Djuito Lumintang ◽  
NFN Miftahorrachman
Keyword(s):  
Leaf Length ◽  
Yellow Dwarf ◽  
Stem Length ◽  
Good Growth ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Open Pollination ◽  
Brown Dwarf ◽  
Number Of Leaves ◽  
Physiological Characters

<p align="”justify”">Morphological and physiological characters are indicator parameters in plants to determine whether plants have good growth or vice versa. This study aims to determine the morphological and physiological characters of the three kopyor hybrid coconuts with three female parents. The study was designed in a Randomized Block Design consisting of six treatments, namely GKK x DKS, GHK x DKS, and GCK x DKS hybrid coconuts as well as three female parents namely Kopyor Yellow Dwarf (GKK) open pollination, Kopyor Green Dwarf (GHK) open pollination, and Kopyor Brown Dwarf (GCK) open pollination. The replication was three times and each experimental unit consisted of 15 plants. Morphological parameters observed included stem length, girth of stem, number of leaves, leaf length, number of leaflets, length of leaflets, leaflet width, and length of the petiole. Phisiological parameters consist of chlorophyll a, chlorophyll b, total chlorophyll and stomata density. The results of analysis of variance and HSD follow-up tests showed different morphological characters were girth of stem (LB) between the treatment of GKK x DKS and the treatment of GHK x DKS, GCK x DKS, and Kopyor Yellow dwarf open pollination; number of leaves (JD) between GKK x DKS and GCK x DKS, Kopyor Green Dwarf open pollination, and Kopyor Brown Dwarf open pollination treatments; leaf length (PD) between GKK x DKS treatment and GCK x DKS and Kopyor Green Dwarf treatments; the number of leaflets (JAD) between the Kopyor Green Dwarf open pollination and GKK x DKS, Kopyor Brown Dwarf open pollination, and Kopyor Green Dwarf open pollination treatments. The difference ofphysiological characters are chlorophyll b between the GKK x DKS treatment and the GHK x DKS, GCK x DKS, and Kopyor Green Dwarf open pollination treatments; total chlorophyll between GKK x DKS treatment with GHK x DKS, GCK x DKS, Kopyor Green Dwarf open pollination, and Kopyor Brown Dwarf open pollination treatments. The average of the 12 parameters observed, the GHK x DKS treatment was the most vigorous among the treatments, while the weakest was the GKK x DKS treatment and its parent Kopyor Yellow Dwarf open pollination.</p><p align="center"><strong>ABSTRAK</strong></p><p align="”justify”">Karakter morfologi dan fisiologi merupakan parameter indikator pada tanaman untuk mengetahui apakah tanaman memiliki pertumbuhan yang baik atau sebaliknya.Penelitian ini bertujuan untuk mengetahui keragaan karakter morfologi dan fisiologi tiga kelapa hibrida kopyor dengan tiga tetua betinanya.Penelitian dirancang dalam Rancangan Acak Kelompok terdiri dari enam perlakuan, yaitu kelapa hibrida GKK x DKS, GHK x DKS, dan GCK x DKS; serta tiga tetua betinanya yaitu Genjah Kuning Kopyor (GKK) penyerbukan terbuka, Genjah Hijau Kopyor (GHK) penyerbukan terbuka, dan Genjah Cokelat Kopyor (GCK) penyerbukan terbuka. Penelitian diulang sebanyak tiga kali dan setiap unit percobaan terdiri dari 15  tanaman. Parameter morfologi yang diamati meliputi panjang batang, lingkar batang, jumlah daun, panjang daun, jumlah anak daun, panjang anak daun, lebar anak daun, dan panjang petiole. Paramater fisiologi terdiri dari kandungan klorofil a, klorofil b, klorofil total dan kepadatan stomata. Hasil analisis sidik ragam dan uji lanjut HSD menunjukkan karakter morfologi yang berbeda adalah lingkar batang (LB) antara perlakuan GKK x DKS dengan perlakuan GHK x DKS, GCK x DKS, dan GKK penyerbukan terbuka; jumlah daun (JD) antara perlakuan GKK x DKS dengan perlakuan GCK x DKS, GHK penyerbukan terbuka, dan GCK penyerbukan terbuka; panjang daun (PD) antara perlakuan GKK x DKS dengan perlakuan GCK x DKS dan GHK penyerbukan terbuka; jumlah anak daun (JAD) antara perlakuan GHK penyerbukanterbuka dengan perlakuan GKK x DKS, GCK penyerbukan terbuka, dan GKK penyerbukan terbuka.Karakter fisiologi yang berbeda adalah klorofil b antara perlakuan GKK x DKS dengan perlakuan GHK x DKS, GCK x DKS, dan GHK penyerbukan terbuka; klorofil total antara perlakuan GKK x DKS dengan perlakuan GHK x DKS, GCK x DKS, GHK penyerbukan terbuka, dan GCK penyerbukan terbuka. Rata-rata 12 parameter yang diamati, perlakuan GHK x DKS paling vigor diantara perlakuan, sedangkan paling lemah vigoritasnya perlakuan GKK x DKS dan tetuanya GKK penyerbukan terbuka. Hasil penelitian diharapkan bisa  memberipilihanantara hibrida kopyor hasil silangan antara GHK x DKS atau GCK x DKS bagi pengembang tipe kelapa hibrida kopyor yang akan digunakan</p>

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