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Bananas and Food Security - Bioversity International

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Asie/Pacifique - Asia/Pacific : A. Molina <strong>and</strong> R.V. Valmayor<br />

cater to the exacting requirements of the banana export trade. Corporate farms are<br />

capital intensive <strong>and</strong> involve heavy investments in plantation infrastructure. Production<br />

practices are applied at optimum levels <strong>and</strong> productivity is very high. Quality of the<br />

produce is of primary consideration.<br />

Banana production under<br />

adverse environments<br />

Abiotic factors<br />

The most serious climatic problem that confront commercial producers of banana in<br />

Asia <strong>and</strong> the Pacific are the tropical storms <strong>and</strong> typhoons. <strong>Bananas</strong> are sensitive to<br />

strong winds, especially for tall cultivars bearing a heavy bunch of fruit. Storms at 54 to<br />

72 kph cause serious blowdowns <strong>and</strong> typhoons at more than 72 kph can result in<br />

complete destruction of banana plantations. Taiwan, South China, Vietnam, northern<br />

<strong>and</strong> central Philippines <strong>and</strong> many isl<strong>and</strong> countries in the South Pacific are annually<br />

subjected to this calamity. But the occurrence of typhoons is seasonal <strong>and</strong> it coincides<br />

with the monsoon months. After consistently suffering heavy losses caused by tropical<br />

storms <strong>and</strong> typhoons that occur with predictable regularity, the banana growers in<br />

Taiwan <strong>and</strong> the Ilocos region in northern Philippines have adapted a planting calendar<br />

with corresponding plantation management practices that ensures minimal damage<br />

caused by strong winds. In the case of northern Philippines, the tropical cyclones begin<br />

in June <strong>and</strong> cease in November with highest frequency during the months of July, August<br />

(mm)<br />

600<br />

500<br />

400<br />

300<br />

200<br />

100<br />

M J J A S O N D J F M A<br />

Average monthly rainfall Total monthly distribution of Tropical cyclones<br />

Figure 2. Monthly average rainfall <strong>and</strong> frequency of tropical cyclones (1981-1995) plotted<br />

against different stages of plant growth <strong>and</strong> development in the recommended annual<br />

cropping system for Ilocos region.<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

429<br />

Number of tropical cyclones

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