scholarly journals Studies on effects of graded levels of zinc and Trichoderma viride, Pseudomonas strita on yield and quality attributing characters in tomato (Lycopersicon esculentum L.)

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 1-12
Author(s):  
H. R. Galande ◽  
A.M. Bhosale ◽  
S.J. Syed ◽  
Basir Ahmad Ahmadi

The present investigation “Studies on effects of graded levels of zinc and Trichoderma viride, Pseudomonas strita on yield and quality attributing characters in tomato (Lycopersicon esculentum L.)”. The experiment was laid out in Factorial RBD with two factor i.e. factor first is zinc solubilizers and factor second is levels of zinc, it has twelve treatments replicated three times. Trichoderma viride and Pseudomonas strita are used as source zinc solubilizers along with different levels of zinc. The experiment framed was intended to study the effect of zinc solubilizers and levels of zinc on yield and quality of tomato.The results revealed that effect of zinc solubilizers on yield and quality parameters of tomato indicated that the zinc solubilizer B2 (Trichoderma viride) recorded maximum fruit yield per plant (1458.76 gm), fruit yield per plot (20.42 kg), fruit yield per hectare (567.15 qt.), maximum titrable acidity (0.38 %), TSS (5.22%), ascorbic acid (22.81 mg/100gm), reducing sugars (1.61 %), non reducing sugars (2.70 %), totalsugars (4.31 %). The effect of different levels of zinc on yield and quality parameters of tomato indicated that the levels of zinc Zn3 (30 kg ZnSO4/ha) recorded maximum fruit yield per plant (1305.09 gm), fruit yield per plot (18.26 kg), fruit yield per hectare (507.43 qt.), maximum titrable acidity (0.36 %), TSS (4.77%), ascorbic acid (22.04 mg/100gm), reducing sugars (1.48 %), non reducing sugars (2.61 %), total sugars (4.09 %).The interaction effect of different zinc solubilizers and levels of zinc on yield and quality parameters of tomato indicated that the B2Zn3 (Trichoderma viride + 30 kg ZnSO4/ha) recorded maximum fruit yield per plant (1698.33 gm), fruit yield per plot (23.77 kg), fruit yield per hectare (660.27 qt.), maximum titrable acidity (0.43 %), TSS (5.39%),ascorbic acid (23.35 mg/100gm), reducing sugars (1.71 %), non reducing sugars (2.80 %), total sugars (4.51 %).

1965 ◽  
Vol 5 (18) ◽  
pp. 289 ◽  
Author(s):  
PA Wills

Tasmanian Up-to-date, Kennebec, Sebago, and Sequoia tubers were treated with low doses of gamma radiation to inhibit sprouting and were subsequently stored at 68�F or 45�F. Tubers were examined at bi-monthly intervals for some, or all, of the following biochemical constituents : dry matter, thiamin, reduced ascorbic acid, dehydroascorbic acid, total ascorbic acid, soluble reducing sugars, sucrose, total sugars, and starch. Radiation, independent of dose level, led to lower dry matter contents in the Up-to-date, Kennebec, and Sequoia tubers after four months storage, and in the Sebago tubers after six months storage at 68�F, but not at 45�F, when compared to the controls. The thiamin content of Up-to-date tubers w-as not influenced by radiation (16,000 rads). Storage w-as a more important factor than radiation in altering the ascorbic acid content of tubers. Radiation maintained, or even increased the normal level. Radiation increased the soluble reducing sugar content of Sequoia tubers, the total sugar of Sequoia and Sebago tubers, and the sucrose content of the Sebago tubers, but had little effect on the starch content of these varieties. Storage influenced some of these constituents, particularly in the Sebago variety.


1989 ◽  
Vol 29 (5) ◽  
pp. 727 ◽  
Author(s):  
GG Johns ◽  
KJ Scott

A field study was conducted to examine the effects of various bunch covering and harvest delay combinations on the environment inside bunch covers, and on fruit yield and quality parameters. Treatments included the use of both unsealed and initially sealed (but often ultimately leaky) clear covers under the industry standard blue/silver cover, and the inclusion of an ethylene absorbent inside 'sealed' covers. The finger length, girth and weight of 'sealed' cover bunches that were harvested late were increased by up to 11, 13, and 37% respectively. Maturity bronzing increased with increasing delay of harvest of 'sealed' cover fruit. Greenlife was increased by the 'sealed' cover treatment, but decreased with increasing delay of harvest of 'sealed' cover bunches, and was increased by the presence of KMnO,. Greenlife was inversely related to finger size such that any treatment resulting in larger fruit tended also to reduce greenlife. The peel of ripe fruit from 'sealed' covers was greyer than that of the controls. Delaying harvesting increased the pulp to peel ratio of ripe fruit by 4%. The flavour of 'sealed' cover fruit was blander than that of their counterparts, with delay of harvest further reducing flavour. Up to about 40% of bunches were lost before harvest, due to snapped stems or to rotting of the bunch when the harvest of 'sealed' cover bunches was delayed during the warmer part of the year. Consequently, the yield of fruit with greenlife in excess of 10 days was as high from the standard treatment as from any of the more elaborate treatments. However, the 'sealed' cover treatment, when harvested at the normal time, produced the most fruit with a greenlife greater than 30 days.


HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 536c-536
Author(s):  
Judith Zambrano ◽  
Juan Manzano

The effect of applying Ca++ in two forms: infiltration and dipping on mango fruit cv `Haden' was investigated. This effect was evaluated by measuring some quality parameters in the flesh and in the skin of the fruit. It was found that postharvest application of Ca++ extent the storage life of the fruit by a week. This fact, together with the results obtained from the quantification of sugars, ascorbic acid, total soluble solids alcohol. insoluble solids, starch and titrable acidity seem to indicate that the application of Ca++ delays slightly the process associated with ripeness. Furthermore, no significant difference between the two forms of Ca++ applied was found, except for the amount of ascorbic acid and total sugar. Finally, dipping application of Ca++ is easier than infiltration and it is therefore suggested.


2016 ◽  
Vol 8 (3) ◽  
pp. 1649-1653 ◽  
Author(s):  
G. Pandove ◽  
P. Sahota ◽  
N. Gupta

A pure yeast Clavispora lusitaniae, isolated from whey beverage, phenotypically characterized and molecularly characterized by sequencing of D1/D2 domain of 26S rRNA and Internal Transcribed Spacer (ITS) region was used to produce low alcoholic naturally carbonated fermented debittered beverage from Grapefruit. C. lusitaniae produces enzyme naringinase. This enzyme is a mixture of α-L-rhamnosidase and β-D-glucosidase. The bitter component in citrus fruit, naringin can be hydrolyzed by α-L-rhamnosidase to rhamnose and prunin then by β-glucosidase to glucose and naringenin. The freshly prepared fermented Grapefruit beverage had TSS 14 °B, pH 4.7, acidity 0.26%, brix acid ratio 53.85, total sugars 11.6%, reducing sugars 3.34%, ascorbic acid 21.9 mg/100 ml, naringin 643.2 ppm, alcohol 0.00% (v/v), CO2 0.00 bar and total yeast count 5.83 (Log no.of cells/ml). Physico-chemical changes recorded after three months of storage at refrigerated temperature revealed TSS 12.0 °B, pH 4.2, acidity 0.54%, brix acid ratio 22.22, total sugars 8.97%, reducing sugars 1.94%, ascorbic acid 18.45 mg/100 ml, naringin 365.2 ppm, alcohol 0.76 % (v/v), CO2 1.35 bar and total yeast count 8.54 (Log no.of cells/ml). Naturally produced CO2 by C. lusitaniae during fermentation adds effervescence, sparkle, tangy taste to the beverage in addition to its antimicrobial properties. Thus bio-enzymatic debittering by C. lusitaniae may become the new direction of citrus juice processing in the future, due to its economical viability with strong ability to remove the bitter taste from citrus juice beverage.


2020 ◽  
Vol 11 ◽  
pp. 1-13
Author(s):  
Salma I. Abdalbagi ◽  
Maarouf I. Mohammed

An experiment was conducted in Shambat (2012-2013) during the summer and winter seasons to study the stalk-juice quality parameters of 29 exotic and local sweet sorghum varieties as affected by season. The objectives were to provide basic data attributing to syrup and sugar (jaggery) production in the Sudan. The materials were arranged in RCB design. Data were collected on brix, pol (sucrose %), reducing sugars, total sugars, purity and pH. The single and combined analysis of variance revealed highly significant differences among varieties for all traits studied. The variety x season interaction was significant for all traits other than total sugars %, implying the need for considering the variety choice in each season. The results of juice quality parameters were mostly within the range reported in the literature. The exotic materials excelled the local ones in brix, pol%, total sugars% and purity. The exotic varieties: N100, Red-X, Hastings and N110 as well as the local Ankolib selections: AnkNyala and Ank36 were identified as having juice quality traits suitable for syrup production. The exotic varieties: BlueRibbon, KansasCollies and Brawley were identified for sugar (jaggery) production. It was concluded that interaction of variety x season and yield parameters for juice, grain and stover should be considered when determining the choice of the variety. Future research should focus on developing multi-purpose varieties capable for concurrent production of syrup/sugar, grain and stover.


Author(s):  
A. Vidya ◽  
B. G. Hanumantharayya ◽  
R. Vasantha Kumari

An experiment was conducted during 2012-2014 at Kittur Rani Channamma College of Horticulture, Arabhavi, Gokak (Karnataka), India to study the effect of silicon on  yield and quality of mango cv. Kesar. The experiment was laid out in a randomized complete block design with nine treatments replicated five times. The results revealed that, the highest yield per tree (140.93 kg/tree) was recorded in the treatment supplemented in (T5) Half of RDF + DE 600 kg/ha which significantly more than the compared to control during 2012-2013, 2013-2014 and pooled data. It was noticed that the (T7) RDF + DE 300 kg per hectareas RDF + DE 300 kg/ha was best on the basis of physical characteristics like increased in length, diameter and volume of the fruit, and the treatment was significantly higher than the untreated control mango fruits. The treatment also helped in better chemical characteristics like increased TSS, total sugars, and reducing sugars and optimum physiological loss in weight, resulting in improved keeping quality at ambient conditions (25-350C, 50-60% RH). The T7 treatment was judged as the most effective soil application for the mango cv. Kesar that helped in increasing the quality of the mango fruits during storage even after 18 days of storage. The same treatment was also found to be more effective and significantly more than the compared to control during 2012-2013, 2013-2014 and pooled data with respect to organoleptic parameters for the mango cv. Kesar.


Author(s):  
Xuan Shang ◽  
Chih-Yu Hung ◽  
Barry Husk ◽  
Valerie Orsat ◽  
Joann K. Whalen

The market for small fruits (grapes, blueberries, strawberries, and raspberries) is valued at more than CAD100 million per year in Quebec, Canada. Wood-based biochar is an amendment that improves soil quality, which may boost small fruit growth and production. The objective of this research was to determine if wood-based biochar could increase the yield and quality of grape, blueberry, strawberry, and raspberry in southern Quebec. We evaluated the fruit yield as well as the quality parameters like average fruit weight, fruit firmness, color, juice pH, total soluble solids, total phenolic content, and antioxidant activity. Field trials were established on commercial farms with grape, blueberry, strawberry, and raspberry production systems in plots that received wood-based biochar and no biochar in spring (April to May). Small fruits were harvested at their ripening stage for yield and quality evaluation in fall (July to October). Biochar application did not improve yield and quality parameters of small fruits except it gave a marginal higher yield of grape (3.7 vs. 4.4 t ha-1, P = 0.08) and a higher average fruit weight of strawberry (11.9 vs. 13.2 g, P < 0.05). There was no difference in the quality of the fruit from biochar-amended and control plots in the first year of biochar application, possibly because the quality parameters are affected more by weather conditions, handling, and storage than by soil quality. This work suggests that wood-based biochar (<5 t ha-1) has a limited first-year impact on small fruit yield and quality in southern Quebec, Canada.


2016 ◽  
Vol 1 (01) ◽  
pp. 116-118
Author(s):  
Anant Kumar ◽  
Virendra Pal ◽  
S. P. Singh ◽  
Santosh Verma

A field experiment was carried out during summer season of 2013 and 2014 to find out the effect of inorganic and bio-fertilizers on the growth, yield and quality of tomato (Lycopersicon esculentum Mill.) cv. Pusa Hybrid -2. The results revealed that plants growth and yield of tomato can be increased with the application of Azospirillum along with recommended dose of NPK (120kg N + 60kg P + 60kg K/ha). The ascorbic acid content of fruits were found maximum with the 80kg N + 40kg P + 60kg K/ha with Azospirillum. The TSS was improved by the application of 80kg N + 40kg P + 60kg K/ha with Phosphobacteria.


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