hrvatski

Mogućnost uzgoja nekih suptropskih kultura povrća u Hrvatskoj

Global warming, can not only induce the participation of particular vegetable species but, even more greatly, alter growing methods. Through climate change in Croatia, the majority of, the vegetable crops presently cultivated could also be grown in the future in the same locations, but within a different growing period, and some of them could even be moved to higher altitudes, to mountain regions. Consequently, in accord with such changes, some tropical and subtropical vegetables could be introduced to the flora of Croatia, depending on the climatic region, and the vegetation period of the particular vegetable. The variety of climate in Croatia permits the grown of thermophilic vegetables both over a longer period in the open in the Mediterranean areas, and also during a shorter period in the open, or in greenhouse, in the continental part of Croatia. This paper specifies some of the vegetable crops which might be of interest as regards their nutritional values, the temperatures necessary for growth and their vegetation peiod. Some of the proposed species were under research during recent years in our Vegetable Crop Department of the Faculty of Agriculture in Zagreb, such as: Jerusalem artichoke, yardlong bean, sweet corn, kiwano and okra. The temperature range for the growth of the selected vegetables lies somewhere between 16-30 oC. In accord with nutritive matter contents, they are divided in two groups: those with higher energy values (starch vegetables), and those with higher contents of proteins, vitamins, fibers and minerals. Among starch vegetables are the following: sweet potato (batata), sassava and taro. Vegetables with considerable quantities of proteins are: lima bean, sweet corn, yardlong bean, okra, Jerusalem artichoke. Talking in consideration higher contents of vitamins, minerals, fibers and organic acids the following vegetables are chosen: kiwano, ginger, chayote (Mexican cucumber) and pepino. The vegetables investigated showed very good results. Some of these vegetables could presently be cultivated, yielding a profit. For the others, more or less unknown, the standards of selection could be enlarged, in relation not only to warming, the photoperiod or length of the growing period, but also to the possibilities of marketing.

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