scholarly journals Effect of different irrigation and fertilizer levels on growth, yield and cost economics of papaya (Carica papaya L.) cv. red lady under open field conditions

2020 ◽  
Vol 8 (4) ◽  
pp. 2184-2191
Author(s):  
Vinod Godi ◽  
Mahabaleshwar Hegde ◽  
Vidya A ◽  
Thimmegouda MN ◽  
Subbarayappa CT ◽  
...  
Keyword(s):  
Open Field ◽  
Carica Papaya ◽  
Growth Yield ◽  
Field Conditions

scholarly journals Growing Tomato under Protected Cultivation Conditions: Overall Effects on Productivity, Nutritional Yield, and Pest Incidences

Crops ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 97-110
Author(s):  
Paola Sotelo-Cardona ◽  
Mei-Ying Lin ◽  
Ramasamy Srinivasan
Keyword(s):  
Open Field ◽  
Growth Yield ◽  
Field Conditions ◽  
Leaf Miners ◽  
Tomato Production ◽  
Protected Cultivation ◽  
Lycopene Content ◽  
Growing Conditions ◽  
Protective Structures ◽  
Positive Effect

Tomato continues to be one of the most important crops worldwide, and protected cultivation is practiced to overcome the biotic and abiotic stresses to which the plant are exposed during growth. In this study we evaluated the effect of colored net houses on the growth, yield and nutritional values, as well as the incidence of common pests under three different light conditions: (1) colored (magenta), (2) conventional (white), and open field conditions. A colored net house led the plants to grow taller with higher lycopene content, but recorded a higher number of whiteflies, compared to the conventional net house and open field conditions. Furthermore, plants under protected structures recorded lower SPAD values, but larger terminal leaflets, lower damage by leaf miners, but more damage caused by spider mites compared to those plants grown under open field conditions. Overall, we found that the use of colored net houses provided a positive effect on tomato production in terms of improvement in morphometric parameters, however, to obtain higher yields under this production system, it is important to reduce the elevated temperature and increase the relative humidity inside the protective structures to be adapted for local growing conditions in Taiwan.

Effect of colored plastic mulch on growth, yield and nutrient status in cucumber under shade house and open field conditions

2016 ◽  
Vol 39 (14) ◽  
pp. 2144-2152 ◽  
Author(s):  
Vicente Torres-Olivar ◽  
Luis Alonso Valdez-Aguilar ◽  
Antonio Cárdenas-Flores ◽  
Hugo Lira-Saldivar ◽  
Marcela Hernández-Suárez ◽  
...  
Keyword(s):  
Open Field ◽  
Growth Yield ◽  
Nutrient Status ◽  
Field Conditions ◽  
Plastic Mulch

scholarly journals Influence of Biostimulants on Important Traits ofZinnia elegansJacq. under Open Field Conditions

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ishan Saini ◽  
Ashok Aggarwal ◽  
Prashant Kaushik
Keyword(s):  
Open Field ◽  
Mycorrhizal Fungi ◽  
Block Design ◽  
Trichoderma Viride ◽  
Growth Yield ◽  
Arbuscular Mycorrhizal ◽  
Field Trials ◽  
Morphological Characters ◽  
Field Conditions ◽  
Flower Quality

The efficacy of microbial treatment on growth, yield, and nutrient uptake is very well acknowledged for field crops. However, the use of microbes forZinnia eleganshas rarely been exploited under field trials. Therefore, in this study, we have evaluated the efficacy of different microbial bioinoculants on sixteen morphological and nine biochemical traits ofZ.elegans. We used two arbuscular mycorrhizal fungi (AMF) (Glomus mosseae(G) andAcaulospora laevis(A)) along withTrichoderma viride(T) andPseudomonas florescence(P) as five different treatments under open field conditions, in a randomized complete block design. There were significant differences for all of the traits studied. Treatment 5 (G + A + T + P) was noted as the best treatment for the improvement of morphological characters, whereas Treatment 4 (G + A + P) was most significant for the biochemical trait improvement inZ. elegans. Overall, this study provides useful insight into the bioinoculant treatment that can be applied to improve the yield and flower quality ofZ.elegansunder open field conditions.

scholarly journals Application of Bio-Friendly Formulations of Chitinase-Producing Streptomyces cellulosae Actino 48 for Controlling Peanut Soil-Borne Diseases Caused by Sclerotium rolfsii

2021 ◽  
Vol 7 (3) ◽  
pp. 167
Author(s):  
Gaber Abo-Zaid ◽  
Ahmed Abdelkhalek ◽  
Saleh Matar ◽  
Mai Darwish ◽  
Muhammad Abdel-Gayed
Keyword(s):  
Open Field ◽  
Biocontrol Agent ◽  
Sclerotium Rolfsii ◽  
Dry Weight ◽  
Culture Broth ◽  
Field Conditions ◽  
Damping Off ◽  
Mycelium Growth ◽  
Particle Size Analyzer ◽  
Cell Pellet

Of ten actinobacterial isolates, Streptomyces cellulosae Actino 48 exhibited the strongest suppression of Sclerotium rolfsii mycelium growth and the highest chitinase enzyme production (49.2 U L−1 min−1). The interaction between Actino 48 and S. rolfsii was studied by scanning electron microscope (SEM), which revealed many abnormalities, malformations, and injuries of the hypha, with large loss of S. rolfsii mycelia density and mass. Three talc-based formulations with culture broth, cell-free supernatant, and cell pellet suspension of chitinase-producing Actino 48 were characterized using SEM, Fourier transform infrared spectroscopy (FTIR), and a particle size analyzer. All formulations were evaluated as biocontrol agents for reducing damping-off, root rot, and pods rot diseases of peanut caused by S. rolfsii under greenhouse and open-field conditions. The talc-based culture broth formulation was the most effective soil treatment, which decreased the percentage of peanut diseases under greenhouse and open-field conditions during two successive seasons. The culture broth formulation showed the highest increase in the dry weight of peanut shoots, root systems, and yielded pods. The transcriptional levels of three defense-related genes (PR-1, PR-3, and POD) were elevated in the culture broth formulation treatment compared with other formulations. Subsequently, the bio-friendly talc-based culture broth formulation of chitinase-producing Actino 48 could potentially be used as a biocontrol agent for controlling peanut soil-borne diseases caused by S. rolfsii.

scholarly journals Chrysodeixis chalcites nucleopolyhedrovirus (ChchNPV): Natural occurrence and efficacy as a biological insecticide on young banana plants in greenhouse and open-field conditions on the Canary Islands

PLoS ONE ◽  
2017 ◽  
Vol 12 (7) ◽  
pp. e0181384 ◽  
Author(s):  
Ernesto Gabriel Fuentes ◽  
Estrella Hernández-Suárez ◽  
Oihane Simón ◽  
Trevor Williams ◽  
Primitivo Caballero
Keyword(s):  
Open Field ◽  
Canary Islands ◽  
Field Conditions ◽  
Natural Occurrence ◽  
Biological Insecticide ◽  
Chrysodeixis Chalcites
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