"A crop variety that does well in a controlled environment can fail in the uncertain conditions of a farmer's open field." So said Dr Shirin Akter, a Bangladeshi plant researcher at Lanzhou University in China, in an interview with Biggani.org about climate-tolerant crops for the waterlogged and saline land of southern Bangladesh.
In a lab or greenhouse, light, water and temperature can be controlled; in a farmer's field it may be sunny one day and pouring the next, salty in one place and waterlogged in another. Scientists therefore look at which plants' roots reach deep for water and nutrients, which plants' cells cope with excess sodium, and which genes lie behind those traits.
But she does not see one gene as the answer. A variety that tolerates salt may not survive weeks under water, and one with enough water may still lose flowers or grain to heat. Promising varieties must be tested in many places and years for yield, time to maturity and fit with farmers' practices. Developing a variety in a controlled setting is the first step, she said; field results show whether it is ready to be useful.
In another part of the same interview, published separately on Biggani.org, she says: "Genetics alone is not enough." If drainage is blocked, even a salt-tolerant plant's roots stay under water; a drought-tolerant variety can still lose yield if it gets no water at a critical time. Rain forecasts and remote sensing help, but decisions must be checked against local soil and farmers' experience.
Farmers should not be seen only as buyers of new seed, she argues: their knowledge of how long monsoon water stands on a field, where salt rises in the dry season and when disease symptoms appear helps shape research questions. Answering a student, she also raised adulterated fertiliser and irregular supply: good seed can be wasted without quality fertiliser, so fertiliser testing and market monitoring matter too.
Source: Biggani.org
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