The principle of the creation of the watermelon no seed is, with the shed colrachicine, substances alkaloids in the extracts from the plants daffodils (genus Colchicum), on the shoots of the sprouts watermelon. Sprouts watermelon regular berkromosom 22 (watermelon diploid = 2N), after the bud of the bud spilled colchicine, will mutate into berkromosom 44 (watermelon tetraploid = 4N).
When watermelon tetraploid it was cross with the fruit watermelon diploid, the result is three types of watermelon, namely 2N, 3N and 4N. Watermelon 3N ( triploid ) berkromosom 33, if in the plants produce watermelon without seeds ( seedles ). Although to form the fruit, watermelon 3N this should powders by watermelon 2N.
Because watermelon round would be wasteful place when transported and kept in cold stroage. With a box shape (cube), the fruit of the watermelon into compact in box cars and cold stroage. But watermelon box may not be obtained through genetic engineering as well as create a watermelon without seeds.
Then Zentsuji ”memasung” every watermelon in the field with a glass box. Since still big. Because of the crowded glass box, then growth is not to be round but rather cubes. The glass material is selected as to provide the color of the natural skin of the fruit. With box not glass, the skin of the watermelon will become white turbid.
In Indonesia, the cultivation of watermelons is generally carried out in-land wetland in the dry season. Irrigation comes from the pump or suction pump pliers a pick from the river. Techniques of cultivation, there are only with the overlay and without plastic mulch, without a stake and without wasting fruit.
There is also the cultivation of mulsa plastic, ajir and just let one fruit in each individual plants. The seeds of planted farmers, most of the seeds of imports from Taiwan, and Japanese. The seeds of local also there, but less intriguing farmers. The kind of watermelon cultivated ranging from the form round until elongated ( oblong ).