EFFECT OF SOIL SALINITY AND SOME ANTIOXIDANTS ON JEW’S MALLOW (Corchorus olitorus L.): 1-VEGETATIVE GROWTH AND QUALITY PARAMETERS

2015 ◽  
Vol 6 (7) ◽  
pp. 1231-1245
Author(s):  
A. Hamail ◽  
H. Abd El-Nabi ◽  
E. Tartoura ◽  
M. Abd El-Hady
Keyword(s):  
Soil Salinity ◽  
Vegetative Growth ◽  
Quality Parameters

scholarly journals Effect of the application of prohexadione-calcium on the growth of ‘Packham’s Triumph’ and ‘Hosui’ pears (Pyrus communis L.)

2021 ◽  
Vol 10 (8) ◽  
pp. e3110816801
Author(s):  
Odair Ângelo Dalzochio ◽  
Wendel Paulo Silvestre ◽  
Gabriel Fernandes Pauletti
Keyword(s):  
Growth Regulator ◽  
Vegetative Growth ◽  
Fruit Trees ◽  
Fruit Production ◽  
Quality Parameters ◽  
Agricultural Practice ◽  
Pyrus Communis L ◽  
Pear Trees ◽  
Prohexadione Calcium ◽  
Different Doses

The necessity of controlling the vegetative growth of fruit trees is a growing concern for farmers since vigorous plants tend to have lower fruit yields. The use of chemicals that inhibit the vegetative growth of plants, such as prohexadione-calcium (PCa), an inhibitor of gibberellins which is currently used as a growth regulator for apple trees, is an agricultural practice aimed to help in reducing pruning time and cost. Pear trees grafted on vigorous rootstocks tend to present high rates of vegetative growth, hindering fruit production. Thus, this work aimed to evaluate the effect of the application of different doses of the plant growth regulator PCa on the vegetative growth, pruning time, radiation incidence, and productive and quality parameters of ‘Packham’s Triumph’ and ‘Hosui’ pears grafted on vigorous rootstocks. Two PCa applications were carried out, the first after the falling of petals (2009-10-10), and the second twenty-one days after the first (2009-11-02). The observed results showed a significant effect of PCa in reducing the vegetative growth of the pear trees and the pruning time in both cultivars. The effect on photosynthetic active radiation (PAR) was observed only in the ‘Packham’s Triumph’ variety, not being observed for the ‘Hosui’ pear trees. No statistical difference was observed relative to the quality parameters and yield of the fruits, in both cultivars, showing that PCa application has not caused any deleterious effect on fruit development.

scholarly journals Interactive Effects of Soil Salinity and Temperature on Vegetative Growth of Rice after Flooded by TSUNAMI 11 March 2011

2012 ◽  
Vol 81 (4) ◽  
pp. 441-448
Author(s):  
Hiroyuki Shimono ◽  
Etsushi Kumagai ◽  
Noboru Kiminarita ◽  
Miho Ito ◽  
Yoshinori Takahashi ◽  
...  
Keyword(s):  
Soil Salinity ◽  
Vegetative Growth ◽  
Interactive Effects

scholarly journals Vegetative Growth and Quality of Blueberry Fruit Cultivated in Chihuahua, Mexico

2018 ◽  
Vol 47 (2) ◽  
pp. 450-457
Author(s):  
Jessica Iveth CERA-CAMPOS ◽  
Juan Luis JACOBO-CUELLAR ◽  
María Janeth RODRIGUEZ-ROQUE ◽  
Rafael Angel PARRA-QUEZADA ◽  
Mayra Cristina SOTO-CABALLERO ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Vegetative Growth ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Flowering Stage ◽  
Flower Buds ◽  
Physicochemical Quality ◽  
Total Anthocyanins ◽  
Solids Content

The aim of this investigation was to evaluate the vegetative growth and some physicochemical quality parameters in fruits of different varieties of blueberries grown with amendments applied to the soil. The experimental design was completely randomized according to factorial treatments with nine replications. Length and number of shoots, flower buds number, total soluble solids (TSS), pH, color, total anthocyanins (TA), total phenols (TP) and antioxidant capacity (AC) were evaluated. The application of gypsum, sulphur and compost increased the shoots number in the varieties ‘Bluejay’ and ‘Duke’ with values from 15 and 17.5, respectively. The ‘Duke’ variety was the latest with regard to the flowering stage, evading the problem of frost. Among varieties, ‘Bluejay’ and ‘Blueray’ stood out for presenting fruits with greater acidity and antioxidant capacity (89.1 and 91.5% DPPH inhibition, respectively), however, the TP was higher in ‘Bluejay’ (701.6 mg gallic acid 100 g-1). The use of gypsum, sulphur and compost allows obtaining fruits with high soluble solids content (9.8 °Brix), however, the antioxidant capacity was similar when pine peel was included, with AC values from 91.4 and 88.8% DPPH inhibition, respectively. The amendments such as gypsum, sulphur and compost incorporated into the soil allow an adequate vegetative growth and the obtaining of blueberry fruits with physicochemical quality characteristics acceptable for their commercialization.

scholarly journals Effect of phosphorous in combination with biofertilizers on growth, yield and quality of strawberry cv. Winter Dawn

2021 ◽  
Vol 42 (3) ◽  
pp. 727-734
Author(s):  
G. Chandramohan Reddy ◽  
◽  
R.K. Goyal ◽  
A.K. Godara ◽  
◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Vegetative Growth ◽  
Growth Yield ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Growth And Yield ◽  
Combined Application ◽  
Yield And Quality ◽  
Minimum Number

Aim: This study was carried out to investigate the effect of biofertilizers in combination with phosphorus rates on growth, yield and quality of strawberry. Methodology: The experiment was conducted during the year 2017-18 and 2018-19 at hi-tech greenhouse of the Department of Horticulture, CCS Haryana Agricultural University, Hisar. The experiment was arranged in a factorial completely randomized design with four phosphorus fertilizer rates (0, 80, 100 and 120% RDP per plant) and three biofertilizers (control, VAM and PSB) at five replicates. Growth and yield parameter were estimated. Quality traits, viz., TSS, acidity, ascorbic acid, anthocyanin and juice content of fruits were also measured at maturity stages. Results: All the possible combinations of phosphorous and biofertilizers were found to have significant influence on the vegetative growth, yield and quality parameters of strawberry. The minimum number of days taken to first flowering, maximum fruit weight, size and fruit yield per plant were recorded with 100% RDP along with VAM. TSS and ascorbic acid were noted maximum with combined application of 120% RDP and biofertilizers. Interpretation: VAM and PSB inoculation in combination with 100 percent recommended dose of phosphorous showed maximum vegetative growth, yield and quality of strawberry as compared to non-biofertilizer inoculation.

Automated soil water content-based irrigation under high and low water availability scenarios for a nectarine orchard

2021 ◽  
Author(s):  
María R. Conesa ◽  
Wenceslao Conejero ◽  
Juan Vera ◽  
Mª Carmen Ruiz-Sánchez
Keyword(s):  
Soil Water ◽  
Fruit Quality ◽  
Water Availability ◽  
Water Scarcity ◽  
Vegetative Growth ◽  
Deficit Irrigation ◽  
High Water ◽  
Quality Parameters ◽  
Threshold Values ◽  
Regulated Deficit Irrigation

<p>In a low water availability scenario, as is increasingly frequent in Mediterranean areas threatened by climate change and endemic water scarcity, to achieve the best irrigation water efficiency is of vital importance. This study aimed to assess the feasibility of an automated irrigation scheduling strategy based on real-time threshold volumetric soil water content values (VSWC), monitored with capacitance probes, in adult early-maturing nectarine orchard (Prunus persica (L.) Batsch cv. `Flariba’, on GxN-15 rootstock). Two drip irrigation practices were tested: one control treatment (T-0) based on conventional crop evapotranspiration calculations (ETc, FAO-56), and one automated treatment (T-A) based on management allowed depletion (MAD) threshold values, derived from VSWC data, with a feed-back control system. Furthermore, for both treatments agro-physiological responses were evaluated under two different water availability scenarios (each one comprised of three consecutive growing seasons): no water restrictions (high water availability), and deficit irrigation (low water availability), in which reduced water to irrigate nectarine trees involved regulated deficit irrigation criteria.  In the high water availability scenario, T-A (MAD = 10%) and T-0 (ETc = 100%) irrigation treatments showed no significant differences in the plant-soil water status, vegetative growth, yield, and nectarine fruit quality parameters. The VSWC was not a limiting factor and full irrigating to achieve a maximum yield was a profitable option. In the low water availability scenario, the T-A treatment (subjected to MAD = 10% during pre-harvest and 30% during post-harvest) received 43% less water than the control, which promoted moderate plant and soil water deficits, leading to a decrease in vegetative growth (winter pruning weight and tree canopy cover), without compromising the total yield and nectarine fruit quality parameters (including an increase in the total soluble solid content). The crop water use efficiency increased by an average of 34%. The proposed automated irrigation strategy, based on MAD seasonal threshold values, combined with regulated deficit irrigation phenological criteria could be considered a promising tool that could be eventually extrapolated to other stone fruit orchards under water scarcity conditions. Acknowledgements: This work was funded by Spanish Agencia Estatal de Investigación (PID2019-106226RB-C21/AEI/10.13039/501100011033) and Fundacion Séneca, Región de Murcia (19903/GERM/15) projects.</p>

scholarly journals Optimizing Planting Time for Some Selected Commercial Gladiolus Cultivars under Agro-Climatic Conditions of Faisalabad, Pakistan

2018 ◽  
pp. 21-27
Author(s):  
Nasar Amjad ◽  
Iftikhar Ahmad ◽  
Muhammad Qasim
Keyword(s):  
Vegetative Growth ◽  
Growth Response ◽  
Interval Data ◽  
Research Area ◽  
Quality Parameters ◽  
Climatic Conditions ◽  
Vase Life ◽  
Number Of Leaves ◽  
Quality Production ◽  
Stem Production

A field experiment was conducted at Commercial Floriculture Research Area, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, during 2017-18 to evaluate different planting times for quality production of selected gladiolus cultivars. Sixcommercial gladiolus cultivars, viz., Advance, Amsterdam, Essential, Grand Prix, Rose Supreme and White Prosperity were compared by planting at five different planting times from September to November at 15 days interval. Data regarding vegetative growth, flowering and quality parameters were collected. Early sprouting, best vegetative growth and higher quality gladiolus stems were produced when planted in September for all tested cultivars, while among cultivars, ‘Rose Supreme’ proved best for all planting times in the agro-climatic conditions of Faisalabad. Early planting of gladiolus crop in the season with favourably high temperature and longer photoperiod produced strong growth response as compared to late plantings when temperature dropped below 20 °C with photoperiods became shorter. The minimum time to 50% sprouting (7.0 days) along with the highest sprouting percentage (95%), number of leaves per plant (9.6), leaf area (67.6 cm2), plant height (96.4 cm), spike length (73.0 cm), the longest vase life (11.9 d), the best spike quality (8.3) and the greatest number of cormels per clump (30.5) were recorded for September plantation, which gradually decreased with delayed planting. In summary, the best time of planting gladiolus under agro-climatic conditions of Faisalabad, Punjab (Pakistan) is September, which may be adopted by growers for quality stem production.

scholarly journals Relationship of severity pruning and weather variables on quality fruit production of ber (Ziziphus mauritiana L. cv. Sanaur-2)

2020 ◽  
Vol 49 (1) ◽  
pp. 65-70
Author(s):  
Yogesh Khokhar
Keyword(s):  
Powdery Mildew ◽  
Vegetative Growth ◽  
Growth Parameters ◽  
Fruit Production ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Vital Role ◽  
Ziziphus Mauritiana ◽  
Weather Variables ◽  
Severity Of The Disease

Pruning had a vital role on the quality of fruit production in ber fruit crop under lower Shiwaliks of Punjab. The severity of pruning intensity significantly influenced the tree vegetative growth parameters and flowering behaviour of ber cv. Sanaur-2 viz. number of emerged shoots per branch, shoot length and girth of primary shoot. A significant higher percentage of fruit set, fruit retention, higher percentage of ‘A’ grade fruits and other fruit quality parameters viz., fruit weight, TSS, acidity, vitamin C, total sugars was recorded significantly higher in pruning treatment by removal 50 per cent vegetative growth over other treatments. Powdery mildew incidence steadily increased from standard meteorological weeks (SMW) 36 - 39 to 40 - 43 and then decreased under different pruning treatments. The severity of pruning reduces the incidence of powdery mildew. The meteorological knowledge on various weather variables at 3 - 4 weeks to actual incidence also can be effectively used to check the spread and severity of the disease.

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