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INFLUENCE OF ROOTSTOCKS ON PETIOLE NUTRIENT CONTENT, YIELD, QUALITY AND SHELF LIFE OF TABLE VARIETIES OF GRAPES

KrishiKosh

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Title INFLUENCE OF ROOTSTOCKS ON PETIOLE NUTRIENT CONTENT, YIELD, QUALITY AND SHELF LIFE OF TABLE VARIETIES OF GRAPES
 
Creator B. MANJUVANI
 
Contributor Dr. B. SRINIVAS RAO
 
Subject Rootstocks,Petiole Nutrient Content,Yield, Quality ,fruit bud fertility,,High vigour
 
Description The present investigation entitled “Influence of Rootstocks on Petiole Nutrient Content, Yield, Quality and Shelf Life of Table Varieties of Grapes” was carried out at Grape Research Station, Dr. Y. S. R Horticultural University, Rajendranagar, Hyderabad during April 2011 – March 2012.
An experiment was carried out with three rootstocks (1103 P, SO 4 and Dog Ridge) and three varieties (Thompson Seedless, Flame Seedless and Kishmish Chorni) with own roots as control in Factorial Randomized Block Design replicated four times. The observations were recorded and analysed for percent N, P, K, Ca, Na contents at bud differentiation and full bloom stages, yield attributes like fruit bud fertility, pruning weight, number of canes per vine, number of fruitful canes per vine, number of bunches per vine, bunch weight, 100 berry weight, berry diameter and yield per vine, quality attributes viz., TSS, acidity, brix-acid ratio, shelf life attributes viz., PLW, pedicel browning, berry drop, berry rot; and organoleptic evaluation.
Scions grafted to rootstocks and own roots had no significant influence on percent N content, while own rooted and scions on 1103P recorded high P content, Dog Ridge recorded high K content, SO 4 recorded high Ca content while low Na content was recorded with 1103P and SO4 at both the stages of analysis .Among varieties Thompson Seedless recorded high N and P levels, while Kishmish Chorni recorded high Ca content at bud differentiation and Flame Seedless registered high Ca at full bloom. No differences among varieties were observed with regards to K content.
High vigour in terms of pruning weight was recorded with varieties grafted on rootstocks when compared to those raised on own roots. Own rooted varieties performed well compared to grafted varieties with respect to number of fruitful canes per vine and number of bunches per vine subsequently resulting in higher yield per vine. Scions on Dogridge recorded high bunch weight, 100 berry weight, berry diameter. Among the varieties Thompson Seedless was more vigorous. Kishmish Chorni recorded more number of fruitful canes, bunches per vine and high yields. Highest bunch weight and berry diameter was obtained with Flame Seedless.
High TSS and low acidity was recorded with scions on 1103 P and Dog Ridge rootstocks. Brix-acid ratio was high in scions on 1103 P. Flame Seedless and Kishmish Chorni recorded high TSS.
Scions on Dog Ridge recorded the least PLW, pedicel browning and berry drop which indicates that it has more shelf life. Among the varieties Kishmish Chorni and Thompson Seedless recorded more shelf life.
Rootstocks had not influenced fruits of scions with respect to colour and appearance. Grapes on scions of 1103 P and Dog Ridge scored highest for taste and over all acceptability. Among varieties Flame Seedless scored highest for colour and appearance. Flame Seedless and Kishmish Chorni scored highest for taste and over all acceptability.
 
Date 2016-07-23T09:39:38Z
2016-07-23T09:39:38Z
2012-11
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69463
 
Language en
 
Format application/pdf
 
Publisher DR.Y.S.R.HORTICULTURAL UNIVERSITY