September 22, 2023 – Faculty of Agricultural Science

September 22, 2023ByJanetNews & Updates

UCU researchers develop three new nakati varieties

By Jimmy Siyasa
Renowned for its research excellence, the Uganda Christian University (UCU) Faculty of Agricultural Sciences, previously led by Prof. Elizabeth Kizito, proudly presents three extraordinary varieties of Solanum aethiopicum shum, commonly known as nakati – the beloved African eggplant.

Introduced as the UCU-Nakati 1, UCU-Nakati 2, and UCU-Nakati 3, these innovative nakati varieties mark a significant milestone in Uganda and Africa. The varieties offer farmers a reliable and easily accessible source of African nakati seed. Previously, nakati farmers relied on saved seeds from previous seasons or obtained them from neighbors, friends, and relatives, leading to limited availability and inconsistent quality. One will no longer need to rely on uncertain or unreliable sources as UCU’s nakati varieties ensure consistent quality and ample supply for farming needs.

The development of these nakati varieties involved making crosses over multiple generations, meticulous selection, and ensuring distinctiveness, and uniformity for improved yield and desirable plant characteristics. Each variety has been carefully tailored to meet the expectations of farmers and consumers, incorporating valuable feedback from end-users and thorough market surveys.

These varieties have received certification by the National Variety Release Committee: A Committee of the Ministry of Agriculture, Animal Industry, and Fisheries, ensuring the highest standards of excellence.

Characteristics of the Nakati varieties
Each of the varieties has unique characteristics.

UCU-Nakati 1:

UCU-Nakati 1 is green-stemmed, has green leaves and leaf veins, and the leaf margins (the boundary area of the leaf that is extending along the edge of the leaf) are generally whole. Nakati-1 is not drought tolerant. In sensory evaluations with consumers and market vendors, it was found to be relatively bitter. Its average yield per acre is 982.4 kg/acre.

UCU-Nakati 2:

UCU-Nakati 2 has green, purple stems, green leaves, and green leaf veins. The leaf margins are moderately serrated. Nakati-2 has green-purple stems and green leaf blades. The mean fresh leaf yield at harvest is 936.9 kg/acre. Nakati-2 was identified as a drought-tolerant genotype. In sensory evaluations with consumers and market vendors, products had a generally appealing aroma, appearance, and flavour.

UCU-Nakati 3

UCU-Nakati 3, on the other hand, is purple-stemmed, has green leaves with green-purple leaf veins, and has a deeper serrated leaf margin. The leaf yield at harvest maturity, about 8 weeks after planting, is 976.3 kg/acre. Nakati-3 is moderately drought tolerant and has a generally appealing aroma, appearance and flavour in sensory evaluations with consumers and market vendors.

Implications and Applications

The potential impact on the field or society
The implications of these groundbreaking developments are far-reaching. Previously, there were limited systematic efforts to improve African Indigenous Vegetables (AIVs) in Uganda. The new nakati varieties are the first of their kind. UCU has developed nutritionally rich improved varieties of nakati. This intervention will not only offer farmers quality-assured varieties of AIVs but also set standards for subsequent variety evaluation for distinctiveness, uniformity, and stability (DUS) as well as value for cultivation and use. Releasing these varieties brings to the fore, especially for Africans, the availability of quality seed to meet nutritional and income security needs because these can now be potentially accessed in agro-shops or stores, something that was impossible until recently.

Practical applications and real-world scenarios
With over 200 tons of nakati traded weekly in major markets, this crop plays a crucial role in Uganda’s urban and peri-urban areas, surpassing even the country’s main cash crop – coffee. The popularity of nakati extends beyond Uganda, reaching Cameroon, Burkina Faso and Nigeria. Its nutritional and economic value makes it an indispensable part of traditional dishes and a means of livelihood for poor and unemployed women and youth.

AIVs such as the UCU Nakati varieties, hold immense practical applications and can address real-world challenges in achieving sustainable development goals (SDGs). These vegetables have the potential to alleviate hidden hunger (SDG 2 – End hunger) and poverty (SDG 1 – Zero poverty), particularly among vulnerable groups like women and children under five. In Uganda, a country with high levels of undernutrition, where 3 in 10 children under five are stunted and about 3.5% body wasting, the nutritional value of nakati is significant. It is rich in fiber, minerals, carotene, proteins, fats, ash, crude fiber, carbohydrates, calcium, magnesium, iron, and phytochemicals with therapeutic properties, making it essential in preventing nutrient deficiency diseases and non-communicable diseases. By improving crop varieties and enhancing productivity and incomes for farmers, poverty reduction and improved food security can be achieved, as farmers who cultivate improved varieties often earn more and enjoy better livelihoods.

Expert Reviews
Dr. Ssebuliba James, agronomist and former head of the Department of Crop Production at Makerere University College of Agricultural and Environmental Sciences:

“This is a great addition to knowledge. Research plays a crucial role in the addition of new knowledge, which ultimately advances our understanding of the world and contributes to various areas of daily life. When new knowledge is curated and put in the right hands, it has the power to bring about high-value change in society.”

Dr. Godfrey Asea, Director of Research, National Crops Resources Research Institute, Namulonge:

“This is a good opportunity as a starting point to harness the indigenous vegetable resources.”

Dr. Flavia Kabeere, Seed Technologist and Consultant:

“These varieties will guarantee quality for consumers.”

Collaborations and Funding
The UCU community, leadership, and researchers (Prof. Elizabeth Kizito, Dr. Sseremba Godfrey, Mildred Nakanwagi, and Pamel Kabod) expressed appreciation to the European Union, PAEPARD (Platform for African-European Partnership in Agricultural Research for Development) and The World Academy of Sciences (TWAS) for their valuable support. Funding from the EU through PAEPARD initiated this research, while TWAS contributed to basic research and the selection of drought-tolerant varieties.

Call to Action
Others are invited to delve deeper into this groundbreaking research and its potential applications. Seed companies or other stakeholders interested in the multiplication of seeds are invited to place their orders. For more information, visit the Directorate of Research, Partnerships and Innovation website (https://grants.ucu.ac.ug) or directly contact .

Recap

UCU researchers develop three Nakati varieties UCU-Nakati 1; UCU-Nakati 2; UCU-Nakati 3; with immense promise for enhancing food security, reducing poverty, and promoting better health in Uganda and Africa.
Nakati is considered an African Indigenous Vegetable.
Nakati is one of the most important local vegetable species in terms of providing income and food in urban and peri-urban areas of Uganda.

September 22, 2023ByJanetNews & Updates

Raising a child while searching for knowledge

Ugandan agronomist Rosemary Bulyaba is exploring how to find varieties of cowpea that are more resilient to adverse climatic conditions, can thrive in various soils types and environments, and whose leaves can be utilized as vegetables and are rich in vital nutrients such as iron and folate. Bulyaba however must also balance her research work with her role as a mother of two children, a 2-year-old boy and a 4-year-old girl.

However, her second maternity leave has been much easier than the first one, because, while working at the Uganda Christian University (UCU), in Mukono, Uganda, she received a special grant that TWAS established in collaboration with the German Federal Ministry of Education and Research (BMBF). Called the Seed Grant for New African Principal Investigators (SG-NAPI), itoffers an unprecedented mother-friendly component called ‘Scientist after Child’ scheme. This scheme allows pregnant scientists and new mothers to receive extra funding to hire a lab assistant, thus obtaining reliable maternity leave support.

“Receiving the SG-NAPI was a huge help for my scientific career. I could continue my research with the aid of an assistant while staying at home and breastfeeding,” she explained. “This grant has strengthened my reputation and increased my value at UCU. My career was uplifted: I was head of the department and now I am the Dean of the Faculty of Agricultural Sciences.”

The SG-NAPI grant meets the needs of early-career scientists from developing countries, and, in particular, from the least developed countries (LDCs). With funding entirely from BMBF, it allows young scientists to purchase the research facilities they need to enhance their productivity. Its ‘Scientists after Child’ scheme seeks to enhance the productivity of female scientists returning to academia after maternity leave. Another component of the programme, the ‘Master of Science training grant’, allows scientists to train master’s students within their research group. Bulyaba benefitted from both these components.

A mother-friendly scheme

Cowpea (Vigna unguiculata) is an annual herbaceous legume originally used to feed animals, especially by smallholder farmers in sub-Saharan Africa – hence the name cowpea. However, it is becoming increasingly relevant in human nutrition, as it is rich in protein, carbohydrates, vitamins, and fiber, and low in fat content.

Bulyaba’s interest in nutrition-sensitive agriculture and agronomic management practices is not recent. Her early step in science led her to study grain legumes such as cowpeas, common beans, lablab beans, and soybeans. In 2019, she earned a PhD in crop production, physiology, and sustainable agriculture from Iowa State University, US, and then moved back to Uganda. Shortly thereafter, she discovered that she was expecting, just as the COVID-19 pandemic was about to begin.

“I was afraid that I would have to halt my scientific career for a while, because my husband and I already had a young daughter, who was only 1 year old at the time, to take care of. However, field and lab work are often quite demanding,” she recalled.

An agronomist’s life is physically intense. The fieldworkbegins with land preparation and the planting of the seeds. Then weekly monitoring activity requires extra work to ensure that the plants have germinated and are growing well—otherwise a new round of sowing is needed. Sometimes insects ruin the crop, and scientists need to use pesticides to keep those at bay.

When Bulyaba was still a new staff member and a mother for the second time, she learned about a programme that would preserve her work. The former Dean of Bulyaba’s faculty mentioned the SG-NAPI grant and the mother-friendly scheme. Bulyaba applied, and her maternity leave improved. With a two-year long grant covering 2022 and 2023, she could hire an assistant who supports in supervising the research activities while she is at home with her kids. This also ensures that her master’s students have the support they need and prevents a gap in her scientific work.

“I have three sites to check on periodically, in Eastern Uganda, Central Uganda, and in greenhouses,” Bulyaba explained. “With my students, we are now testing over 100 different genotypes, across these sites, to see which ones best adapt to these environments, under those specific conditions. It is interesting to see how plants behave under conditions that are apparently similar, but in practice different.” Some of the cowpea genotypes are from Ghana, others from Makerere University, and from UCU where Bulyaba is employed.

A mother’s impact on child wellbeing

The grant’s impact was enormous, not only on her career. In a more relaxed mood at home, Bulyaba offered her newborn, Shaun, quality time, and the difference from the first pregnancy was evident.

“My presence at home brought several benefits to my son, who is more self-confident, assertive, and prompt from a cognitive point of view,” she observed. He was breastfed for 18 months, while his sister stopped after four. In addition, Shaun, not yet 3, can count one-to-ten, recite the alphabet, identify shapes and colours, and has started speaking both his native language, Luganda, and English without having attended kindergarten yet.

The SG-NAPI grant put Bulyaba in the position to make a difference also for young scientists in her community. She hired two master’s students, Naome Aryatwijuka and Norah Akaba, whose role in this cowpea research is crucial.

Aryatwijuka, who conducts agronomic field work and experimentation, is a master’s student in agriculture research. She handles tasks such as planting the seeds, collecting the leaves, and correlating the quality and yield of the harvested crops with specific genotypes and field locations. Then Akaba steps in.

Thanks to the SG-NAPI grant, Akaba can pursue her master’s degree in human nutrition. She uses Aryatwijuka’s information to select the most potentially nutritious leaves, which are naturally rich in micronutrients that are especially important for reproductive-age women. She is also involved in the preparation and development of a nutritionally dense cowpea soup for the local communities. Additionally, she is working on gathering feedback from community members regarding the quality and acceptability of the meal.

“I feel quite privileged because the SG-NAPI grant gave me the chance to hire two young women and have an impact on their education and career,” Bulyaba said. “Women often face more challenges and have fewer privileges compared to men, and having a child can often so easily lead to the end of their scientific career. I do hope that both Akaba and Aryatwijuka will also pursue a PhD after this master’s experience.”

“Receiving this grant was not only for me but for my students as well,” she concluded

Day

UCU researchers develop three new nakati varieties

Raising a child while searching for knowledge