More on cowpea breeding

Hot on the heels of a recent nibble on breeding cowpeas for Striga resistance comes a paper in GRACE on the diversity being exploited by cowpea breeding programmes in the US and Africa. It turns out that these programmes are using non-overlapping sets of genetic material and that therefore

US and Asian breeding programs could increase genetic variability in their programs substantially by incorporating germplasm from West Africa, while national programs in West Africa should consider introgression of Asian germplasm and germplasm from other parts of Africa into their programs to ensure long-term gains from selection.

That’s what we mean when we talk about global interdependence in plant genetic resources, I guess. And that’s why the International Treaty was negotiated: to facilitate the exchanges of germplasm necessary to broaden plant breeding programmes worldwide.

More doom and gloom for agricultural research

I ((This article was sent in by Danny Hunter.)) was encouraged to read a couple of interesting news stories on SciDevNet highlighting useful efforts to improve scientific capacity in developing countries, only to be disheartened by another article identifying important gaps and weaknesses in many Poverty Reduction Strategy Papers (PRSPs) in this very area. PRSPs are the multi-year plans that developing countries now have to draw up and adopt as a pre-condition of support from funding agencies such as the World Bank. Not good news for agricultural research and researchers in these countries.

The article highlights a warning for the world’s poorest nations to place more emphasis on using scientific knowledge and technological innovation if they wish to escape growing unemployment and poverty. The warning is contained in a major report — “The Least Developed Countries Report 2007: Knowledge, Technology Learning and Innovation for Development” — published by the United Nations Conference on Trade and Development (UNCTAD).

The PRSPs seek to reduce poverty through sustained economic growth, but fail to give importance to the role of scientific and technological change in achieving sustainable development. No wonder national budgets and donor aid for science, technology and innovation in general, and for agricultural research and extension and capacity-building in particular, are dwindling. ((“…although agriculture remains the principal source of livelihood in LDCs, spending on agricultural research has fallen from 1.2 per cent of agricultural gross national product in the late 1980s to less than 0.5 per cent today.”)) While there are no easy solutions to this complex problem, the report does highlight strategies for donors and LDCs that can improve capacity for science, technology and innovation,

from encouraging “technological learning” in both “farms and firms”, to making better use of international legislation on intellectual property rights, and encouraging donors to increase support for what it describes as “knowledge aid”.

However, while it is important to make such high-minded pronouncements, let us not forget that individual scientists carrying out research in LCDs have much to offer on a day-to-day basis in terms of enhancing national scientific capacity. Such capacity-enhancing activities might involve providing training and mentoring to young scientists, helping young scientists and scientific groups to form networks, ensuring young local scientists are acknowledged and included as co-authors on scientific publications, and so forth. I am sure there are other, more innovative approaches to capacity-enhancing that have been used by scientists working in the field of agricultural biodiveristy. If so, I would love to learn about them.

Stover quality

A couple of papers today on stover quality, and how to get it. Stover is just the dried stalks and leaves of a crop, left in the field after the grain has been harvested. In many places around the world, it is almost as important as the grain itself, because it is used as animal forage or fodder. Sheep and goats and other animals are often allowed to roam around the harvested fields and eat their fill of the dried remains of the crop as well as any weeds and other volunteer plants they may find.

How to get the best quality stover, in terms of its digestibility and nutrient compositions? Well, as in so many things, genetics and management, according to work by three CG Centres. A paper on pearl millet in India by ICRISAT and ILRI researchers points to the importance of genetics: landraces had better quality stover than hybrids, though it came at the expense of yield. On the other hand, a paper from ICARDA in Syria found that rotations involving growing legumes such as medics or vetch in alternate years improved the protein content of both the grain and stubble of durum wheat. Now, I wonder, is there an interaction between the two? Do some varieties respond better than others to management in terms of their nutritional quality?