scholarly journals Comparative study of qualitative and quantitative characters of grape cultivar 'Mavrodafni' (Vitis vinifera L.) and 'Renio' grown in different regions of the Protected Designation of Origin Mavrodafni Patras

2019 ◽  
Vol 1 ◽  
Author(s):  
Katerina Biniari ◽  
Ioannis Daskalakis ◽  
Despoina Bouza ◽  
Maritina Stavrakaki
Keyword(s):  
Vitis Vinifera ◽  
Vitis Vinifera L ◽  
Total Polyphenol ◽  
Grape Cultivar ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Protected Designation Of Origin ◽  
Different Types ◽  
Total Anthocyanins ◽  
Berry Skins

'Mavrodafni' (Vitis vinifera L.) is considered one of the oldest grapevine cultivars indigenous to the Greek vineyards, with western Peloponnese being its primary centre of cultivation. 'Renio' is considered to be either a biotype of 'Mavrodafni' or an altogether different cultivar. Both 'Mavrodafni' and 'Renio' can be found in the vineyards of the areas of cultivation, since 'Renio' is considered to be more productive compared to 'Mavrodafni' and, for this reason, it has gradually replaced 'Mavrodafni' from cultivation over the course of time. 'Mavrodafni' and 'Renio' contain appreciable amounts of quality characters of grape and must in terms of total polyphenol and total anthocyanins content in berry skins, depending on the different regions where they are cultivated and they would be worthy of further study and use for the production of different types of wines.

scholarly journals Mutation induction using Co60 in Pembe cekirdeksiz (Vitis vinifera L.) grape cultivar

2017 ◽  
Vol 6 (2) ◽  
pp. 101-106
Author(s):  
Hatice BİLİR EKBİÇ ◽  
Semih TANGOLAR ◽  
Ercan EKBİÇ
Keyword(s):  
Vitis Vinifera ◽  
Mutation Induction ◽  
Vitis Vinifera L ◽  
Grape Cultivar

scholarly journals Leaf-to-Fruit Ratios in Vitis vinifera L. cv. “Sauvignon Blanc”, “Carmenère”, “Cabernet Sauvignon”, and “Syrah” Growing in Maule Valley (Chile): Influence on Yield and Fruit Composition

Agriculture ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 176
Author(s):  
Gastón Gutiérrez-Gamboa ◽  
Irina Díaz-Galvéz ◽  
Nicolás Verdugo-Vásquez ◽  
Yerko Moreno-Simunovic
Keyword(s):  
Vitis Vinifera ◽  
Yield Components ◽  
Soluble Solids ◽  
Vitis Vinifera L ◽  
Cabernet Sauvignon ◽  
Clear Trend ◽  
Total Polyphenol ◽  
Sauvignon Blanc ◽  
Fruit Composition ◽  
Berry Composition

A trial was conducted during the 2005–2006 season in order to determine the effects of different leaf-to-fruit ratios on yield components and fruit composition in four Vitis vinifera L. cultivars. The treatments consisted of selecting shoots of four lengths (>1.3 m, 1.3–0.8 m, 0.8–0.4 m, and <0.4 m) with two crop levels (1–2 clusters/shoot), which allowed defining eight ratios. Berry composition and yield components were measured. The treatments affected the accumulation of soluble solids in “Sauvignon blanc”, “Cabernet Sauvignon”, and “Syrah”, delaying it as the ratio decreased. All yield components were affected in “Sauvignon blanc”, while bunch weight and the number of berries per bunch were altered without a clear trend. None of the yield components were affected in “Cabernet Sauvignon”, while the lowest ratio presented the lowest number of berries per bunch in “Syrah”. Total polyphenol index (TPI) was affected in “Carmenère” without a clear trend. A highly significant correlation was found between shoot length and leaf area in all studied cultivars. As the ratio increased, the shoot lignification increased in “Sauvignon blanc”. However, studies must be conducted during more seasons to establish better conclusions about the effects of leaf-to-fruit ratios on yield and fruit composition.

scholarly journals Eco-Physiological Traits and Phenylpropanoid Profiling on Potted Vitis vinifera L. cv Pinot Noir Subjected to Ascophyllum nodosum Treatments under Post-Veraison Low Water Availability

2020 ◽  
Vol 10 (13) ◽  
pp. 4473 ◽  
Author(s):  
Linda Salvi ◽  
Cecilia Brunetti ◽  
Eleonora Cataldo ◽  
Paolo Storchi ◽  
Giovan Battista Mattii
Keyword(s):  
Water Stress ◽  
Secondary Metabolites ◽  
Vitis Vinifera ◽  
Foliar Application ◽  
Sampling Period ◽  
Ascophyllum Nodosum ◽  
Pinot Noir ◽  
Vitis Vinifera L ◽  
Irrigation Regimes ◽  
Berry Skins

In Mediterranean regions, extreme weather conditions during the growing season may alter grapevine physiology and metabolism, thus modifying the quality of wines. The objective of this study was to investigate the effects of Ascophyllum nodosum treatments on plant physiology and berry metabolism in Vitis vinifera exposed to water stress. The experiment was performed on potted vines subjected to two irrigation regimes (well-watered, WW, and water stressed, WS) both associated with A. nodosum treatments (SWE), compared with control plants (CTRL). Gas exchanges, chlorophyll fluorescence, and water relations were monitored on SWE and CTRL leaves, both in WW and WS vines at three times. Moreover, the quantification of secondary metabolites and their partitioning were performed in berry skins. Plants treated with A. nodosum extract showed higher photosynthesis and stomatal conductance than CTRL in both irrigation regimes and maintained a better plant hydraulic conductivity at the end of the sampling period. In addition, secondary metabolites in berry skins and their partitioning were significantly affected by the treatments in both irrigation regimes. Our results suggest that foliar application of A. nodosum extract may help the acclimation of grapevines to post-veraison water stress, likely improving plant physiological and biochemical performances under environmental constraints.

GENETIC TRANSFORMATION OF A SEEDLESS GRAPE CULTIVAR 'AUTUMN ROYAL' (VITIS VINIFERA L.)

2009 ◽  
pp. 405-408
Author(s):  
Y. Jittayasothorn ◽  
J. Lu ◽  
X. Xu ◽  
P. Thipyapong ◽  
N. Boonkerd
Keyword(s):  
Genetic Transformation ◽  
Vitis Vinifera ◽  
Vitis Vinifera L ◽  
Grape Cultivar ◽  
Seedless Grape

scholarly journals KERAGAMAN GENETIKA VARIAN ABAKA YANG DIINDUKSI DENGAN ETHYLMETHANE SULPHONATE (EMS)

2020 ◽  
Vol 14 (1) ◽  
pp. 16
Author(s):  
RULLY DYAH PURWATI ◽  
SUDJINDRO SUDJINDRO ◽  
ENDANG KARTINI ◽  
SUDARSONO SUDARSONO
Keyword(s):  
Genetic Variability ◽  
Somaclonal Variation ◽  
Field Evaluation ◽  
Embryogenic Calli ◽  
Qualitative And Quantitative ◽  
Quantitative Characters ◽  
Ethylmethane Sulphonate ◽  
Different Types ◽  
Fibre Yield

ABSTRAK<br />Mutasi in vitro dengan perlakuan mutagen dapat digunakan untuk<br />meningkatkan keragaman genetika abaka melalui keragaman somaklonal.<br />Penelitian yang dilakukan bertujuan untuk: (1) menentukan konsentrasi<br />optimum EMS untuk induksi keragaman somaklonal dalam kultur kalus<br />embriogen abaka, (2) meregenerasikan bibit abaka varian dari kalus<br />embriogen yang diberi perlakuan EMS, dan (3) mengevaluasi tipe dan<br />frekuensi keragaman karakter kualitatif dan kuantitatif di antara populasi<br />tanaman mutan abaka yang diperoleh dari regenerasi kalus embriogen<br />yang diberi perlakuan EMS. Penelitian dilakukan mulai bulan Agustus<br />2003 sampai Agustus 2006 di Laboratorium Kultur Jaringan dan Kebun<br />Percobaan Karangploso, Malang pada Balai Penelitian Tanaman<br />Tembakau dan Serat, Malang (Balittas). Hasil penelitian menunjukkan<br />bahwa 0,6% EMS merupakan konsentrasi optimum karena pada<br />konsentrasi tersebut diperoleh keragaman somaklonal paling banyak.<br />Varian yang diperoleh menunjukkan karakter kualitatif dan kuantitatif<br />abnormal. Tipe varian tersebut umumnya bersifat negatif dan kurang<br />menguntungkan dibandingkan dengan populasi standar. Tipe dan frekuensi<br />keragaman kualitatif dan kuantitatif pada klon Tangongon berbeda dengan<br />klon Sangihe-1, mengindikasikan adanya pengaruh genotipe terhadap<br />keragaman somaklonal. Varian dari abaka klon Tangongon dengan<br />produksi serat tertinggi (161,0 g dan 154,0 g/tanaman) diperoleh dari<br />perlakuan EMS 0,3% (T1 28.1.1 dan T1 11.2.2), sedangkan dari klon<br />Sangihe-1, hasil serat tertinggi (35,0 g dan 40,0 g/tanaman) diperoleh dari<br />perlakuan EMS 0,6% (S4 28.1.0 dan S4 56.2.0). Produktivitas tersebut<br />lebih rendah dibandingkan dengan produksi serat tanaman kontrol klon<br />Tangongon (193,0 g/tanaman) dan Sangihe-1 (70 g/tanaman).<br />Kata kunci : Abaka, Musa textilis, keragaman somaklonal, EMS, muta-<br />genesis, in vitro, hasil, Jawa Timur<br />ABSTRACT<br />Genetic Variability of Abaca Variants Induced by<br />Ethylmethane Sulphonate (EMS)<br />In vitro mutation with mutagen treatment can be used to increase<br />the genetic variability of abaca by inducing somaclonal variation. The<br />objectives of the experiments were to (1) determine optimum concen-<br />tration of EMS to induce abaca somaclonal variation, (2) produce abaca<br />lines from EMS treated embryogenic calli and evaluate their performance<br />in the field, and (3) evaluate type and frequency of qualitative and<br />quantitative variant characters among regenerated abaca lines. This<br />experiment was conducted in Tissue Culture Laboratory and Karangploso<br />Experiment Station of Indonesian Tobacco and Fibre Crops Research<br />Institute (ItoFCRI) Malang from August 2003 to August 2006. The results<br />showed that EMS treatment on abaca embryogenic calli induced variation,<br />and the optimum EMS concentration was 0.6%. The variants exhibited a<br />number of abnormal qualitative and quantitative characters which were<br />generally negative characters since they showed lower value as compared<br />to control population. The presence of different types of qualitative and<br />quantitative variant characters was genotype dependent. Variants from<br />abaca clone Tangongon having the highest fibre yield (161.0 g and 154.0<br />g/plant) were obtained from 0.3% EMS treatment (T1 28.1.1 and T1 11.2.2<br />variants). While variants from abaca clone Sangihe-1 having the highest<br />fibre yield (35.0 g and 40.0 g/plant) were obtained from 0.6% EMS<br />treatment (S4 28.1.0 and S4 56.2.0 variants). The fibre yield of control<br />clones, Tangongon and Sangihe-1, were 193.0 g and 70 g/plant,<br />respectively.<br />Key words: Abaca, Musa textilis, induced mutation, somaclonal<br />variation, field evaluation, yield, East Java

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