scholarly journals Inventory of the potato diseases and impact on growth and yield traits in far North Cameroon

2020 ◽  
Vol 14 (8) ◽  
pp. 2826-2836
Author(s):  
Jules Patrice Ngoh Dooh ◽  
Frederic Ulrich Boydoul ◽  
Abdoul Madjerembe ◽  
Dany Brice Tchoupou Tsouala ◽  
Djile Bouba Hawaou Adagoro ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Late Blight ◽  
Solanum Tuberosum L ◽  
Leaf Roll ◽  
Morphological Characteristics ◽  
Growth And Yield ◽  
Potato Leaf ◽  
Potato Diseases ◽  
Far North ◽  
Number Of Stems

Potato (Solanum tuberosum L) production in the Far North Region of Cameroon is faced with scarcity or inequality of rains and with diseases that affect yields. To improve the production a study was conducted in the production area of Mogode subdivision with the objective of identifying potato diseases and pathogens agents. The experimental design was in complete randomized blocks. The plant material used was a local variety of potato (Dosa). Diseases and pathogens have been identified on a base of symptoms and morphological characteristics. The incidence, severity and rainfall were assessed. Yield, number of stems and diameter of the tubers were evaluated. The diseases identified are fungal (late blight, Alternaria or early blight and Fusarium wilt), viral (Virosis M, Rust stain and Potato leaf roll (PLR) and bacterial (Bacterial wilt and Common scab). Conidia of Phytophthora infestans, and Alternaria spp. were found.Whatever the site and disease, the incidence has remained below 25%. Late blight was more present in the Gouria site, Alternaria and virosis M more present in the Mouvou site. The yield was roughly the same at the two sites, around 3 t/ha. The highest number of stems was obtained at Gouria, 18 ± 0.75. The potato is attacked by several diseases. The results of this study represent an important baseline data for the implementation of integrated disease management in Cameroon.Keywords: Solanum tuberosum, diseases, pathogens, incidence, severity, yield.

Effect of Plant Container Type on Seed Potato (Solanum tuberosum L.) Growth and Yield in Substrate Culture

2021 ◽  
Author(s):  
Gyu-Bin Lee ◽  
Hyun-Jin Park ◽  
Chung-Gi Cheon ◽  
Jang-Gyu Choi ◽  
Jin-Hee Seo ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Seed Potato ◽  
Solanum Tuberosum L ◽  
Growth And Yield ◽  
Container Type

scholarly journals Genome-Wide Association Mapping of Late Blight Tolerance Trait in Potato (Solanum tuberosum L.)

2021 ◽  
Vol 12 ◽  
Author(s):  
Fang Wang ◽  
Meiling Zou ◽  
Long Zhao ◽  
Zhiqiang Xia ◽  
Jian Wang
Keyword(s):  
Solanum Tuberosum ◽  
Late Blight ◽  
Potato Breeding ◽  
Genome Wide Association Study ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
Genome Wide Association ◽  
Genome Wide ◽  
Population Structure Analysis ◽  
A Genome

Uncovering the genetic basis and optimizing the late blight tolerance trait in potatoes (Solanum tuberosum L.) are crucial for potato breeding. Late blight disease is one of the most significant diseases hindering potato production. The traits of late blight tolerance were evaluated for 284 potato cultivars to identify loci significantly associated with the late blight tolerance trait. Of all, 37 and 15 were the most tolerant to disease, and 107 and 30 were the most susceptible. A total of 22,489 high-quality single-nucleotide polymorphisms and indels were identified in 284 potato cultivars. All the potato cultivars were clustered into eight subgroups using population structure analysis and principal component analysis, which were consistent with the results of the phylogenetic tree analysis. The average genetic diversity for all 284 potato cultivars was 0.216, and the differentiation index of each subgroup was 0.025–0.149. Genome-wide linkage disequilibrium (LD) analysis demonstrated that the average LD was about 0.9 kb. A genome-wide association study using a mixed linear model identified 964 loci significantly associated with the late blight tolerance trait. Fourteen candidate genes for late blight tolerance traits were identified, including genes encoding late blight tolerance protein, chitinase 1, cytosolic nucleotide-binding site–leucine-rich repeat tolerance protein, protein kinase, ethylene-responsive transcription factor, and other potential plant tolerance-related proteins. This study provides novel insights into the genetic architecture of late blight tolerance traits and will be helpful for late blight tolerance in potato breeding.

Integration of different sources of nutrients on growth and yield of potato (Solanum tuberosum L.) CV. Kufri Chipsona

2021 ◽  
Vol 14 (1) ◽  
pp. 46-50
Author(s):  
Arvind Kumar ◽  
Vipin Kumar ◽  
S K Tripathi ◽  
Satya Prakash ◽  
B. Singh
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Growth And Yield ◽  
Different Sources
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