Analyzing the functional association among seed traits, berry growth and chemical composition in Cabernet-Sauvignon berry (Vitis vinifera L.) using a mathematical growth function

OENO One ◽  
2009 ◽  
Vol 43 (1) ◽  
pp. 35
Author(s):  
Zhan Wu Dai ◽  
Michel Génard ◽  
Shao-hua Li ◽  
Philippe Vivin
Keyword(s):  
Growth Phase ◽  
Rapid Growth ◽  
Skin Color ◽  
Seed Weight ◽  
Color Change ◽  
Growth Function ◽  
Seed Traits ◽  
Seed Number ◽  
Diameter Increment ◽  
Berry Size

<p style="text-align: justify;"><strong>Aims</strong>: This study aimed at assessing the functional linkage among seed traits (including seed number, seed weight), berry growth and berry sugar and acid concentration by adapting a mathematical growth function with parameters having biological importance.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The evolution of berry diameter of Cabernet- Sauvignon was satisfactorily fitted to a bi-phasic growth function with six parameters. Correlations between the parameters and berry characteristics, including time of skin color change, seed number, seed weight, final berry size and chemical composition, were analyzed. Results showed that berry growth within a bunch deviated according to seed number, which positively related to parameters describing diameter increment (D1) and initial growth rate (GRini) during the first rapid growth phase, but not related to any parameters involved in the second growth phase. The time of skin color change was negatively associated with mean seed weight, and coincided with growth parameter DABmax that denotes the time when growth rate is maximum during the second rapid growth phase. Sugar concentration was negatively correlated to final berry fresh weight (BFW), seed fresh weight (SFW), GRini and diameter increment during the second rapid growth phase (D2). Path analysis further revealed that the negative effects of SFW and D2 were indirectly mediated via BFW and GRini.</p><p style="text-align: justify;"><strong>Conclusions</strong>: We thus conclude that seed affects berry growth and exerts its influence only during the first growth phase via modifying the parameters D1 and GRini. The time of colour change is also affected by seed, and might not be a good indicator of growth restoration after the lag phase. Sugar concentration is linked to final berry size, specific berry growth parameters and seed weight, for the last mainly in an indirect manner.</p><p style="text-align: justify;"><strong>Significance of the study</strong>: This study, integrating the analysis of berry growth and composition with a mathematical growth function, provides a valuable approach for deeper understanding of the functional associations among seed traits, berry growth and berry sugar and acid concentration at the berry level.</p>

scholarly journals Reversible reddish skin color change in a patient with compressive radial neuropathy

BMC Neurology ◽  
2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Jong Hyeon Ahn ◽  
Dae Joong Kim ◽  
Jung-Joon Sung ◽  
Yoon-Ho Hong ◽  
Suk-Won Ahn ◽  
...  
Keyword(s):  
Skin Color ◽  
Color Change

scholarly journals Action of growth regulators on production of soybean cultivar Davis

1981 ◽  
Vol 38 (1) ◽  
pp. 127-138 ◽  
Author(s):  
Paulo R.C. Castro ◽  
Roberto S. Moraes
Keyword(s):  
Glycine Max ◽  
Gibberellic Acid ◽  
Growth Regulators ◽  
Seed Weight ◽  
Dry Weight ◽  
Soybean Plant ◽  
Trimethylammonium Chloride ◽  
Seed Number ◽  
Exogenous Growth ◽  
Soybean Plants

This research deals with the effects of exogenous growth regulators on production of soybean plant (Glycine max cv.. Davis) under greenhouse conditions, At the flower anthesis, 2,3,5-triiodobenzoic acid (TIBA) 20 ppm was applied. Other two applications with TiBA, with intervals of four days, were realized. Before flowering, Agrostemin (1 g/10 ml/3 1), gibberellic acid (GA) 100 ppm, and (2-chloroethyl) trimethylammonium chloride (CCC) 2,000 ppm were applied. It was observed that CCC and TIBA reduced stem dry weight. Soybean plants treated with TIBA reduced weight of pods without seeds , seed number and seed weight.

scholarly journals Rapid Growth Phase of Ovum in the Guinea Fowl.

1996 ◽  
Vol 33 (5) ◽  
pp. 300-304
Author(s):  
Hiroshi OGAWA ◽  
Takehito KUWAYAMA ◽  
Katuhide TANAKA
Keyword(s):  
Growth Phase ◽  
Rapid Growth ◽  
Guinea Fowl

scholarly journals Coated Vesicle-Mediated Transport and Deposition of Vitellogenic Ferritin in the Rapid Growth Phase of Snail Oocytes

1982 ◽  
Vol 53 (1) ◽  
pp. 173-191 ◽  
Author(s):  
W. BOTTKE ◽  
I. SINHA ◽  
I. KEIL
Keyword(s):  
Growth Phase ◽  
Rapid Growth ◽  
Lymnaea Stagnalis ◽  
Follicle Cells ◽  
Coated Vesicle ◽  
Secretory Cells ◽  
Basal Region ◽  
Coated Pits ◽  
Iron Storage ◽  
Basement Lamina

The main yolk component in oocytes of the pulmonate freshwater snails Planorbarius corneus L. and Lymnaea stagnalis L. consists of the iron storage protein ferritin and iron-free apoferritin. Both compounds are deposited in the yolk in the form of large paracrystalloids, tubular structures and randomly dispersed particles. In addition, the plasm contains lysosome-like inclusions with depositions of haemosiderin. Haemosiderin is interpreted as the product of proteolytic degradation of ferritin. During the rapid growth phase of the oocytes vitellogenic ferritin is transported across the basement lamina and taken up by adsorptive endocytosis via coated pits and vesicles. Formation of yolk bodies occurs by fusion of ferritin-containing vacuoles and empty vesicles that are probably derived from the Golgi apparatus. Uptake of ferritin is restricted to the basal region of the oocyte. No involvement of the follicle cells in synthesis and deposition of ferritin could be detected. Secretory cells of the midgut gland are the most likely site of synthesis of vitellogenic ferritin. Under conditions of iron overload large masses of ferritin are encountered in the basement lamina of the oocytes. However, no significant increase in the uptake of ferritin could be observed. With the use of a tannic acid-glutaraldehyde fixation procedure a hitherto unobserved filamentous or rod-like material was detected inside the lamina and in coated pits. This material is probably also taken up by the oocytes and integrated into yolk platelets. Though ferritin is a rather unusual vitellogenic protein, the mode of its uptake and deposition in the oocyte plasm is highly reminiscent of that of typical hormone-induced vitellogenins in other animal groups.

scholarly journals Vegetative, productive and qualitative performance of grapevine "Cabernet Sauvignon" according to the use of winter cover crops

Revista CERES ◽  
2016 ◽  
Vol 63 (4) ◽  
pp. 538-544
Author(s):  
Jean Carlos Bettoni ◽  
Nelson Pires Feldberg ◽  
Gilberto Nava ◽  
Milton da Veiga ◽  
Leandro do Prado Wildner
Keyword(s):  
Cover Crops ◽  
Skin Color ◽  
Color Change ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Cabernet Sauvignon ◽  
Qualitative Behavior ◽  
Average Mass ◽  
Winter Cover ◽  
Winter Cover Crops

ABSTRACT To study the effect of winter cover crops on the vegetative, productive and qualitative behavior of "Cabernet Sauvignon" grapevines, an experiment was conducted in two wine harvests by sowing different species of winter cover crops and additional treatments with manual weeding and mechanical mowing in an experimental vineyard located at the Experimental Station of Epagri in Videira, state of Santa Catarina, Brazil. Plant attributes of the grapevine, such as number of rods and weight of pruned material and number of branches per plant. At the time of skin color change, petioles of recently matured leaves were collected for analysis of the levels of N, P, K, Ca, Mg, Fe, Mn, Zn and B. Moments before harvest, 100 grape berries were collected randomly to determine the total soluble solids, titratable acidity and pH. At harvest, the number of bunches per branch, the number and mass of clusters per plant and the average mass of clusters per plot were determined. Fresh and dry matter yields of the cover crop and weed plants were also determined when coverage reached full bloom. The winter cover crops did not alter the yield and quality of "Cabernet Sauvignon" grapes and showed no differences from each other for the management of spontaneous vegetation by hand weeding or mechanical mowing. Rye and ryegrass are effective alternatives for weed control alternatives. The species of white and red clover present difficulty in initial establishment, producing a small amount of biomass.

scholarly journals Skin Color Change in Caucasian Postmenopausal Women Predicts Summer-Winter Change in 25-Hydroxyvitamin D: Findings from the ANSAViD Cohort Study

2011 ◽  
Vol 96 (6) ◽  
pp. 1677-1686 ◽  
Author(s):  
Helen M. Macdonald ◽  
Alexandra Mavroeidi ◽  
Lorna A. Aucott ◽  
Brian L. Diffey ◽  
William D. Fraser ◽  
...  
Keyword(s):  
Cohort Study ◽  
Postmenopausal Women ◽  
Skin Color ◽  
Color Change ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D

Diameter Increment and Survival Equations for Loblolly Pine Trees Growing in Thinned and Unthinned Plantations on Cutover, Site-Prepared Lands

1989 ◽  
Vol 13 (4) ◽  
pp. 170-174 ◽  
Author(s):  
Ralph L. Amateis ◽  
Harold E. Burkhart ◽  
Terese A. Walsh
Keyword(s):  
Loblolly Pine ◽  
Growth Function ◽  
Individual Tree ◽  
Competitive Position ◽  
Probability Of Survival ◽  
Diameter Increment ◽  
Annual Probability ◽  
Pine Trees ◽  
Stand Conditions

Abstract Individual tree dbh increment and survival equations were developed for predicting annual dbh growth and annual probability of survival of loblolly pine trees in thinned and unthinned plantations on cutover, site-prepared lands. The dbh increment equation predicts dbh increment froma potential dbh growth function multiplied by a modifier function. The survival equations predicts the probability of survival as a function of crown ratio and the tree's competitive position in the stand. When used together, the equations should be useful to foresters interested in predictingfuture dbh and survival values for both thinned and unthinned stand conditions. South. J. Appl. For. 13(4):170-174.

Sign in / Sign up

Export Citation Format

Share Document