Gene Action and Heterosis Studies for Growth, Earliness, Yield and  Downy Mildew Disease [Pseudoperonospora cubensis (Berk. and Curt.) Rostow.] in Ridge Gourd [Luffa acutangula (Roxb.) L.]

Anggraini et al, 2018. Host-Range Analysis of Downy Mildew (Pseudoperonospora cubensis) and Anthracnose (Colletotrichum Sp.) on some Cucurbitaceae Plants. JLSO 7(2): Inhibiting factors of cucumber cultivation is Downy mildew disease that is caused by Pseudoperonospora cubensis and Anthracnose by Colletotrichum sp. The objective of this research was to observe pathogenicity of activity caused by Pseudoperonospora cubensis and Colletotrichum sp. isolated from cucumber towards Cucurbitaceae plants. The research was conducted at greenhouse and Phytopathology Laboratory, Department of Plant Pests and Diseases Faculty of Agriculture, University of Sriwijaya in September to December 2016. This study used Randomized Block Design (RBD), with four types of plants, 2 treatments and 4 replications. The results showed that the incubation period of the plant inoculation Downy mildew by Pseudoperonospora cubensis range between 4.5-5.0 days. Result of broadest spot area was on melon leaf 2.05 cm2 with the chlorophyll content of 0.4928 mg/g and the lowest result was on cucumber leaf 0.90 cm with the chlorophyll content of 0.7628 mg/g. While the results showed that the incubation period of the applied plant pathogen Colletotrichum sp. ranging from 3.0-4.5 days. Result of broadest spot area was on melon leaf 4.00 cm2 with the chlorophyll content of 0.3932 mg/g and the lowest result was on cucumber leaf 2.42 cm2 with the chlorophyll content of 0.7588 mg/g.

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IMPACT OF DOWNY MILDEW DISEASE CAUSED BY PSEUDOPERONOSPORA CUBENSIS ON CUCUMBER GERMPLASM AND ITS HORTICULTURAL ATTRIBUTES

Pakistan Journal of Phytopathology ◽

10.33866/phytopathol.033.01.0668 ◽

2021 ◽

Vol 33 (1) ◽

Author(s):

Sabir H. Khan ◽

Iqra Mubin ◽

Abdul Jabbar ◽

Hafiz M.F. Shaheen ◽

Kiran Fatima ◽

...

Keyword(s):

Downy Mildew ◽

Pseudoperonospora Cubensis ◽

Downy Mildew Disease

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EVALUATION OF DIFFERENT FUNGICIDES AGAINST DOWNY MILDEW OF CUCUMBER CAUSED BY PSEUDOPERONOSPORA CUBENSIS

Pakistan Journal of Phytopathology ◽

10.33866/phytopathol.029.01.0294 ◽

2017 ◽

Vol 29 (1) ◽

pp. 153

Author(s):

Muhammad Waris ◽

Ahmad Khan ◽

Lut Fullah ◽

Atta Ullah

Keyword(s):

Downy Mildew ◽

Cucumis Sativus ◽

Positive Response ◽

Effective Control ◽

Pseudoperonospora Cubensis ◽

Vegetable Crop ◽

Different Types ◽

And Control ◽

Downy Mildew Disease

Cucumis sativus is one of the most important vegetable crop being grown in Pakistan, cucumber is being affected by different types of pathogens and downy mildew is one of the detrimental disease causing losses upto 40%. RCBD design was used for fungicide evaluation, Varieties viz., beithoalfa, Marketmore-76, Cucumber 363, Anmol , Marketmore and Desi were evaluated it was found that all varieties were showed positive response in minimizing disease disease out of which variety Beithoalfa showed the most effective control of disease followed by Marketmore-76, Cucumber 363, Anmol, Marketmore and Desi/Control. Among the treatment of fungicides: Moral fungicide showed most effective control of disease followed by Agrohut, Acute, Antracol, Cabriotop and Control, out of all fungicides “cabriotop” showed the least effective results against downy mildew disease.

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