RESPONSE OF ROOTSTOCKS TO STEM CANKER AND THE PRODUCTION AND QUALITY OF MELON UNDER PROTECTED CULTIVATION

2008 ◽  
pp. 151-155
Author(s):  
L.A. Ito ◽  
L.T. Braz ◽  
R. Castoldi ◽  
H.C.O. Charlo
2009 ◽  
pp. 381-386
Author(s):  
S.M. Singer ◽  
U.A. El-Behairy ◽  
A.F. Abou-Hadid ◽  
G. Noha ◽  
A. El-Rahman

2012 ◽  
Vol 64 (2) ◽  
pp. 3-14 ◽  
Author(s):  
Joanna Kaczmarek ◽  
Małgorzata Jędryczka

Stem canker of brassicas, also known as blackleg is the most damaging disease of many Brassicaceae. The disease is caused by <i>Leptosphaeria maculans</i> (Desm.) Ces et de Not. and <i>L. biglobosa</i> sp. nov., Shoemaker & Brun, which coexist in plants and resulting in disease symptoms and decreased yield, quantity and quality of cultivated vegetables and oilseed rape. The paper presents taxonomic relationships between these coexisting pathogen species, describes particular stages of their life cycles, summarizes the differences between the species, and reviews methods for their identification.


2018 ◽  
pp. 615-622
Author(s):  
Léia Carla dos Santos Rodrigues Larson ◽  
Aparecida Conceição Boliani ◽  
Tiago Lima do Espírito Santo ◽  
Paulo Eduardo Teodoro ◽  
Edilson Costa

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1442 ◽  
Author(s):  
Maryam Mozafarian ◽  
Nazatul Syaima Binti Ismail ◽  
Noémi Kappel

This study aimed to investigate the effect of different rootstocks on the yield and quality of eggplant cv. ‘Madonna’ in soilless pot culture in an unheated polyethylene greenhouse. The eggplant was grafted onto several rootstocks, including tomato rootstocks Optifort (O) and Emperador (E), and four Solanum rootstocks; Solanum grandiflorum × Solanum melongena (SH), Solanum torvum (ST), Solanum melongena × Solanum integrifolium (SI), and Solanum integrifolium (A) compared with self-grafted (SG) and self-rooted (SR) as control. The results showed that the total marketable yield significantly increased by grafting onto ST (3.94 kg/plant), SH (3.36 kg/plant), and A (3.34 kg/plant) relative to SR (1.65 kg/plant). The chromatics characters of skin and pulp are slightly influenced by rootstocks. Our findings confirmed that grafting eggplant decreased firmness (except SH) of the flesh. Fruit harvested from the Optifort/Madonna combination had the rounded shape, lowest firmness, and Brix value, while the lowest oxidation potential was observed in this combination. The highest seed number was observed in SH/Madonna and SI/Madonna combinations. During the sensory evaluation, the lightest fruit flesh was found in SR, ST, and O, and the sweetest taste was observed in fruits harvested from ST rootstock.


2018 ◽  
Vol 3 (1) ◽  
pp. 478-489 ◽  
Author(s):  
Radha Prasanna ◽  
Garima Saxena ◽  
Babita Singh ◽  
Kunal Ranjan ◽  
Rishi Buddhadeo ◽  
...  

Abstract Availability of nutrients in soil plays an important role in the productivity and quality of flowers in chrysanthemum. A set of novel biofilm inoculants- Anabaena-Azotobacter, Anabaena-Pseudomonas fluorescens (An-Psf) and Anabaena-Trichoderma (An-Tr) were applied as carrier based dry formulation or soil drench and their performance compared in two varieties of chrysanthemum (White Star and Zembla), in a climate-controlled greenhouse. Both the An-Psf and (An-Tr) inoculants enhanced glomalin related soil proteins in the rhizosphere of White Star, while in terms of polysaccharide content of soil, both these inoculants performed better in Zembla variety. Significant increases in the availability of selected macro and micronutrients in rhizosphere soil samples, in both chrysanthemum varieties were recorded, particularly when the inoculants were applied as soil drench. Principal Component analysis illustrated the significant interaction among soil and plant parameters, more specifically, the distinct effect of the inoculants, as compared to the application of carrier alone or control treatment. This investigation demonstrated the varietal effects on soil biological activities and significance of mode of application of microbial inoculants in influencing plant growth and rhizospheric metabolic activities.


Horticulturae ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 20
Author(s):  
Khamis Youssef ◽  
Osmar Jose Chaves Junior ◽  
Débora Thaís Mühlbeier ◽  
Sergio Ruffo Roberto

The purpose of this research is to test the efficacy of different types of SO2-generating pads on the incidence of gray mold, and on the physicochemical properties of quality of ‘BRS Nubia’ seeded table grapes grown under protected cultivation. Four types of SO2-generating pads, 5 or 8 g of sodium metabisulfite dual release pads, and 4 or 7 g of sodium metabisulfite slow release pads, were used. Grapes bunches were harvested from a vineyard covered with plastic mash and stored in a cold room at 1 ± 1 °C for 45 days followed by 6 days of shelf life at 22 ± 1 °C at a high relative humidity (>95%). The results showed that SO2-generating pads with a dual release of 5 or 8 g completely inhibited the development of gray mold at all evaluation times. Also, a high reduction of the disease incidence was achieved by using a slow release of 4 g. The study confirmed that SO2-generating pads did not alter the physicochemical properties of ‘BRS Nubia’ seeded table grapes including mass loss, berry firmness, color index, total anthocyanin concentration, total soluble solids (TSS), titratable acidity (TA), and the TSS/TA ratio. Slow release pads at 4 and 7 g reduced the percentage of shattered berries by 56 and 48% as compared to control only after 6 days of shelf life. Also, all types of SO2-generating pads reduced the stem browning score at the end of cold storage. The 5 or 8 g dual release pads and 4 g slow release pads can be considered for effective controlling of gray mold for ‘BRS Nubia’ table grapes grown under protected cultivation while maintaining grape quality.


2003 ◽  
pp. 411-415 ◽  
Author(s):  
G. Noha ◽  
A. El-Rahman ◽  
S.M. Singer ◽  
U.A. El-Behairy ◽  
A.F. Abou-Hadid

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 692
Author(s):  
Pramod Kumar ◽  
Amit Kar ◽  
Dharam Raj Singh ◽  
Anbukkani Perumal ◽  
Satish Gowda Chirathahalli Shivamurthy ◽  
...  

In recent times, with the globalization of markets, shrinking of land and climate change, food basket diversification, increase in demand for nutrient-rich food, the protected cultivation of high-value crops (HVCs) have assumed a pivotal role in augmenting higher crop productivity and profitability and enhancing nutritional security of the growing population. In this context, a study was undertaken to analyze the impact of protected cultivation in horticultural crops in the districts of Almora and Dehradun in the Uttarakhand state. It was mainly based on primary data obtained through a primary survey and focus group discussion with the 96 farmers practicing protected cultivation by using a well-structured and pre-tested questionnaire. In economic analysis, the project analysis tools were used to assess the feasibility of the protected cultivation. The study clearly demonstrated that the cultivation of vegetables and flowers under protected cultivation is a highly profitable enterprise. However, the findings of the study indicated that the subsidy scheme needs to be continued to encourage maximum farmers to adopt protected cultivation and farmers need to be encouraged to form farmers producers organizations (FPOs), which would help them in seeking better quality of inputs and enhancing negotiating power in the market to realize maximum returns for their farm produce.


2018 ◽  
Vol 30 (2) ◽  
pp. 183-190 ◽  
Author(s):  
Janina Gajc-Wolska ◽  
Katarzyna Mazur ◽  
Monika Niedzińska ◽  
Katarzyna Kowalczyk ◽  
Paweł Żołnierczyk

AbstractOptimal feeding of field-grown plants is thought to be a key factor modifying their growth and development. Natural biostimulants, foliar fertilizers and plant growth regulators have been applied in horticultural production; however, their effect varies depending on the plant species treated, and those have been mainly cucumber, tomato, pepper, potato, and melon. The aim of the study was to evaluate the effect of preparations produced through nanotechnology on the yield and fruit quality of sweet pepper grown under cover. The experiment comprised plants grown in three different combinations: combination I (plants treated with 2 kg ha−1Nano Active); combination II (plants treated with 1% Nano Active Forte + 4 kg ha−1Nano Active Forte + 2 kg ha−1Nano Active, a single treatment carried out at the initial stage of fruit formation); and combination III (the control, where all plants were sprayed with water).The obtained results showed that Nano Active Forte foliar treatment of sweet pepper plants significantly increased fruit yield in protected cultivation. Supplementation with foliar fertilizers modified the fruit chemical composition. Application of the Nano Active Forte preparation led to an increase in dry matter content as well as in the concentrations of total sugars, vitamin C and carotenoids. Applications of Nano Active Forte and Nano Active enhanced the potassium and phosphorus contents, while the concentrations of nitrates and calcium remained at the same level regardless of the preparations used.


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