scholarly journals Effect of Temperature and Leaf Wetness Period on the Components of Resistance to Late Leaf Spot Disease in Groundnut

2004 ◽  
Vol 20 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Suresh Pande ◽  
T.Ratna Rajesh ◽  
G.Krishna Kishore
Keyword(s):  
Leaf Spot ◽  
Effect Of Temperature ◽  
Leaf Wetness ◽  
Leaf Spot Disease ◽  
Late Leaf Spot ◽  
Spot Disease ◽  
Components Of Resistance ◽  
Wetness Period ◽  
Leaf Wetness Period

scholarly journals Registration of three peanut allotetraploid interspecific hybrids resistant to late leaf spot disease and tomato spotted wilt

2021 ◽  
Author(s):  
Ye Chu ◽  
H. Thomas Stalker ◽  
Kathleen Marasigan ◽  
Chandler M. Levinson ◽  
Dongying Gao ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Interspecific Hybrids ◽  
Leaf Spot Disease ◽  
Late Leaf Spot ◽  
Spot Disease ◽  
Tomato Spotted Wilt

scholarly journals Effect of Temperature on Pathogen Growth and Damage Analysis of Leaf Spot Disease on Grapevine Caused by Paeudocercospora vitis in Korea

2006 ◽  
Vol 12 (1) ◽  
pp. 10-14 ◽  
Author(s):  
Jong-Han Park ◽  
Kyeong-Suk Han ◽  
Jung-Sup Lee ◽  
Sang-Tae Seo ◽  
Han-Ik Jang ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Effect Of Temperature ◽  
Leaf Spot Disease ◽  
Damage Analysis ◽  
Spot Disease

scholarly journals Lack of Induced Systemic Resistance in Peanut to Late Leaf Spot Disease by Plant Growth-Promoting Rhizobacteria and Chemical Elicitors

Plant Disease ◽  
2001 ◽  
Vol 85 (8) ◽  
pp. 879-884 ◽  
Author(s):  
Shouan Zhang ◽  
M. S. Reddy ◽  
Nancy Kokalis-Burelle ◽  
Larry W. Wells ◽  
Stevan P. Nightengale ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Acquired Resistance ◽  
Plant Growth Promoting Rhizobacteria ◽  
Systemic Resistance ◽  
Leaf Spot Disease ◽  
Late Leaf Spot ◽  
Spot Disease ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Significant Disease

A disease assay was optimized for late leaf spot disease of peanut using Cercosporidium per-sonatum in the greenhouse, and this assay was used in attempts to elicit induced systemic resistance using strains of plant growth-promoting rhizobacteria (PGPR) and chemical elicitors. Nineteen strains of spore-forming bacilli PGPR, including strains of Paenibacillus macerans, Brevibacillus brevis, Bacillus laterosporus, B. subtilis, B. pumilus, B. amyloliquefaciens, B. sphaericus, B. cereus, and B. pasteurii, which previously elicited systemic disease control activity on other crops, were evaluated in greenhouse assays. Seven PGPR strains elicited significant disease reduction in a single experiment; however, none repeated significant protection achieved in the greenhouse assay, while significant protection consistently occurred with the fungicide chlorothalonil (Bravo). In other greenhouse trials, neither stem injections of C. personatum nor foliar sprays of chemicals, including salicylic acid, sodium salicylate, isonicotinic acid, or benzo[1,2,3]thiadiazole-7-carbothioc acid S-methyl ester (Actigard), which elicit systemic acquired resistance on other crops, elicited significant disease protection. In contrast, foliar sprays with DL-β-amino-n-butyric acid (BABA), which is an elicitor of localized acquired resistance, resulted in significantly less late leaf spot disease in one of two tests. Combination treatments of four PGPR strains with BABA in the greenhouse did not significantly protect peanut from late leaf spot. Field trials conducted over two growing seasons indicated that none of the 19 PGPR strains, applied as seed treatments at two concentrations, significantly reduced late leaf spot disease. The same chemical elicitors tested in the greenhouse, including BABA, did not elicit significant disease protection. Some combinations of four PGPR and BABA significantly reduced the disease at one but not at two sample times. Collectively, these results suggest that late leaf spot resistance in peanut is not systemically inducible in the same manner as is resistance to diseases in other crops by PGPR and chemical inducers.

scholarly journals Impact of Different Factors on the process of Leaf Spot Disease in Mulberry

2021 ◽  
Vol 9 (VII) ◽  
pp. 1644-1647
Author(s):  
Pudi Nageswarara Rao
Keyword(s):  
Leaf Spot ◽  
Effect Of Temperature ◽  
Leaf Spot Disease ◽  
Plant Spacing ◽  
Manure Application ◽  
External Temperature ◽  
Spot Disease ◽  
Critical Effect ◽  
Compost Treatment

The effect of temperature, relative mugginess, adjusted compost, and plant spacing on the improvement of Cercospora moricola leaf spot disease in mulberry was investigated. At the point when the external temperature and relative dampness were 25-30 oC and more than 80%, disease advancement was at its top in August and September. The impacts of adjusted manure and plant spacing on disease advancement were additionally investigated, and they uncovered a critical effect on disease seriousness. Disease seriousness was decreased by 6-8 percent when a reasonable dose of NPK compost was applied. As opposed to unequal manure application in the dirt, adjusted compost treatment brought about decreased leaf microorganism infection. Close plant spacing (60 cm) was additionally demonstrated to be more helpful for disease advancement than distance spacing (90 cm).

Metabolic profiling for dissection of late leaf spot disease resistance mechanism in groundnut

2021 ◽  
Author(s):  
M. K. Mahatma ◽  
Lokesh Kumar Thawait ◽  
K. S. Jadon ◽  
P. P. Thirumalaisamy ◽  
S. K. Bishi ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Leaf Spot ◽  
Metabolic Profiling ◽  
Resistance Mechanism ◽  
Leaf Spot Disease ◽  
Late Leaf Spot ◽  
Spot Disease
Sign in / Sign up

Export Citation Format

Share Document