Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Vernon, Gracen"'
Autor:
Saba Baba Mohammed, Daniel Kwadjo Dzidzienyo, Muhammad Lawan Umar, Mohammad Faguji Ishiyaku, Pangirayi Bernard Tongoona, Vernon Gracen
Publikováno v:
CABI Agriculture and Bioscience, Vol 2, Iss 1, Pp 1-15 (2021)
Abstract Background Low plant density and wide intra-plant spacing in traditional cowpea cropping systems are among the factors responsible for low yield on farmers’ fields. Sole cropping and improved intercropping systems have been advocated in th
Externí odkaz:
https://doaj.org/article/dc3988fb06e343dda80c001f73249888
Autor:
Mohammed, Saba B., Mohammad, Ishiyaku F., Pangirayi, Tongoona B., Vernon, Gracen, Dzidzienyo, Daniel K., Umar, Muhammad L., Umar, Sulaiman
Publikováno v:
In Heliyon October 2020 6(10)
Publikováno v:
Rice Science, Vol 26, Iss 1, Pp 32-41 (2019)
FUNAABOR-2 is a popular Ofada rice variety grown in a large area under rainfed upland condition across western states of Nigeria. We used the combination of phenotypic and marker-assisted selection (MAS) to improve grain yield of FUNAABOR-2 under dro
Externí odkaz:
https://doaj.org/article/211dbd0d2fa14e93915b0c47a284eb8d
Autor:
Joseph Adjebeng-Danquah, Edward Martey, Joseph Manu-Aduening, Vernon Gracen, Isaac Kwadwo Asante, Samuel Kwame Offei
Publikováno v:
Sustainable Futures, Vol 2, Iss , Pp 100041- (2020)
Cassava farmers from three production districts in Northern and Savannah Regions were sampled for their perceptions on drought, production constraints and preferences for new cassava varieties. The levels of agreement of farmers’ responses were tes
Externí odkaz:
https://doaj.org/article/2b148e4afd44426a83db2bb4bfe68702
Autor:
Massaoudou Hamidou, Oumarou Souleymane, Mahamadou Salifou, Malick N. Ba, Issoufou Kapran, Vernon Gracen, Kwado Ofori, Eric Yirenkyi Danquah
Publikováno v:
International Journal of Agronomy, Vol 2020 (2020)
Sorghum is the second most grown cereal crop in Niger. However, sorghum production in the country is dominated by indigenous cultivars with low productivity. Productivity in grain sorghum has been achieved in developing countries around the world usi
Externí odkaz:
https://doaj.org/article/8ba9585befc24d439dcef9494844d95a
Autor:
Joseph Adjebeng-Danquah, Joseph Manu-Aduening, Isaac Kwadwo Asante, Richard Yaw Agyare, Vernon Gracen, Samuel Kwame Offei
Publikováno v:
Heliyon, Vol 6, Iss 1, Pp e03154- (2020)
Genetic diversity is fundamentally important in crop improvement and provides plants with the capacity to meet the demands of changing environments. This work was carried out to assess the diversity and the extent of genetic relatedness among a numbe
Externí odkaz:
https://doaj.org/article/de010e07dbee466fa8d1adbd0bc69e05
Autor:
Saba B. Mohammed, Daniel K. Dzidzienyo, Adama Yahaya, Muhammad L. Umar, Mohammad F. Ishiyaku, Pangirayi B. Tongoona, Vernon Gracen
Publikováno v:
Agronomy, Vol 11, Iss 4, p 802 (2021)
To ameliorate the impact of soil phosphorus (P) deficiency on cowpea, the use of P-based fertilizers is recommended. Plant zinc (Zn) is an essential nutrient required by plants in a wide range of processes, such as growth hormone production and metab
Externí odkaz:
https://doaj.org/article/2fa1d5857acd49709389f9edac75ae5b
Autor:
Ijeoma Chinyere Akaogu, Baffour Badu-Apraku, Vernon Gracen, Pangirayi Tongoona, Melaku Gedil, Nnanna Unachukwu, Samuel Kwame Offei, Daniel Kwadjo Dzidzienyo, Sarah Hearne, Ana Luisa Garcia-Oliveira
Publikováno v:
Agronomy, Vol 10, Iss 10, p 1478 (2020)
Accurate estimation of genetic variability present in tropical maize inbreds with varying reactions to Strigahermonthica infestation is essential for efficient and sustainable utilization to ensure increased genetic gain in a breeding program. Thirty
Externí odkaz:
https://doaj.org/article/8b9ae9fb05ce40e09484e60937e9b4cb
Autor:
Massaoudou Hamidou, Abdoul Kader M. Souley, Issoufou Kapran, Oumarou Souleymane, Eric Yirenkyi Danquah, Kwadwo Ofori, Vernon Gracen, Malick N. Ba
Publikováno v:
International Journal of Agronomy, Vol 2018 (2018)
Sorghum is the second most important cereal crop in Niger. The crop is grown in a wide range of ecological environments in the country. However, sorghum grain yield in Niger is limited by both abiotic and biotic constraints. Recombinant inbred lines
Externí odkaz:
https://doaj.org/article/e719804d383f40b6ab32cb4e4478bc67
Autor:
Chiaka Diallo, H. Frederick W. Rattunde, Vernon Gracen, Aboubacar Touré, Baloua Nebié, Willmar Leiser, Daniel K. Dzidzienyo, Ibrahima Sissoko, Eric Y. Danquah, Abdoulaye G. Diallo, Bakary Sidibé, Mamourou Sidibé, Eva Weltzien
Publikováno v:
Agronomy, Vol 9, Iss 11, p 742 (2019)
Sorghum, a major crop for income generation and food security in West and Central Africa, is predominantly grown in low-input farming systems with serious soil phosphorus (P) deficiencies. This study (a) estimates genetic parameters needed to design
Externí odkaz:
https://doaj.org/article/d1caa4c5a314455689603878ba6fbd16