JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Home
    Editor in Chief
    Editorial Board
    Reviewer Panel
    Publication Policies
    Guidelines for Editors
    Guidelines for Reviewers
    Abstracting and Indexing
    Subscription and Payments
    Contact Journal
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Guidelines for Authors
    Terms and Conditions
    Fees and Payments
    Track Paper Status
 
Announcements
    JEB Awards
 

Google Search the Journal web-site:


    Abstract - Issue Nov 2014, 35 (6)                                     Back


nstantaneous and historical temperature effects on a-pinene

Changes in growth, photosynthetic activities,

biochemical parameters and amino acid profile of

Thompson Seedless grapes (Vitis vinifera L.)

 

 

R.G. Somkuwar*, Anita Bahetwar, I. Khan, J. Satisha, S.D. Ramteke,? Prerna Itroutwar, Aarti Bhongale and Dashrath Oulkar

Department of Horticulture, National Research Centre for Grapes, Pune - 412 307, India

*Corresponding Author E-mail: rgsgrapes@gmail.com

  

 

 

Publication Data

Paper received:

19 July 2013

 

Revised received:

06 December 2013

 

Accepted:

08 March 2014

 

Abstract

The study on photosynthetic activity and biochemical parameters in Thompson Seedless grapes grafted on Dog Ridge rootstock and its impact on growth, yield and amino acid profile at various stages of berry development was conducted during the year 2012-2013. Leaf and berry samples from ten year old vines of Thompson Seedless were collected at different growth and berry developmental stages. The analysis showed difference in photosynthetic activity, biochemical parameters and amino acid status with the changes in berry development stage. Higher photosynthetic rate of 17.39 umol cm-2 s-1 was recorded during 3-4mm berry size and the lowest (10.08 umol cm-2 s-1) was recorded during the veraison stage. The photosynthetic activity showed gradual decrease with the onset of harvest while the different biochemical parameters showed increase and decrease from one stage to another in both berry and leaves. Changes in photosynthetic activity and biochemical parameters thereby affected the growth, yield and amino acid content of the berry.? Positive correlation of leaf area and photosynthetic rate was recorded during the period of study. Reducing sugar (352.25 mg g-1) and total carbohydrate (132.52 mg g-1) was more in berries as compared to leaf. Amino acid profile showed variations in different stages of berry development. Marked variations in photosynthetic as well as biochemical and amino acid content at various? berry development stages was recorded and thereby its cumulative effect on the development of fruit quality.

 

Key words

 

Amino acid, Berry, Biochemical, Harvest, Photosynthesis, Veraison

 

Copyright ? 2014 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).