National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Among the nine rose genotypes were evaluated for resistance to black spot and powdery mildew disease under natural field conditions, none of the genotype has shown immune or highly resistant reaction for any of the disease. Only one genotype Cherishma showed moderately resistant reaction to black spot. Against powdery mildew, seven genotypes showed moderately susceptible reaction, while genotype, Tajmahal and Papaya Red found showed susceptible reaction. Among the genotypes, Carlet recorded highest total phenols (5.19 mg/100g). Least phenols recorded in Tajmahal and Pappaya red with3.02 and 3.26 mg/100g, respectively. The higher amounts of total sugars were recorded in Tajmahal (49.41 mg/g) while, the least total sugars was noticed in Nobless, Carlet and Tineke with25.08, 25.89 and 25.92 mg/g, respectively. The maximum chlorophyll ’a’ content was recorded in Nobless (2.83 mg/g). Maximum Chlorophyll ‘b’ content of leaves recorded in Bugati (1.26 mg/g) which was on par with Nobless (1.25 mg/g) and Tineke (1.24 mg/g). The maximum total chlorophyll content of 4.28 mg/g was observed in Nobless. Higher amount of phenols, total chlorophyll and lower amounts of sugars were found in resistant (Nobless) genotype.
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