Growth and development of spring-planting garlic in cold climate regions of Japan

Growth and development of spring-planting garlic in cold climate regions of Japan

1989

A:PS

The growth and development of several garlic cultivars planted in autumn and spring were compared in a cold district, and principles of spring-planting culture were studied. The shoot growth of autumn-planted garlics during the autumn was generally small. Local cultivars in cold districts (= north cultivars) made less growth during the autumn than warm-district cultivars (= south cultivars), and the north late-maturing cultivars made the least growth. The shoot sizes and bulb yields of the north late-maturing cultivars planted in spring were not much less than those of the autumn-planted ones. However, the sizes and yields of the spring-planted south cultivars were much less than those of the autumn-planted ones. The maturity dates of autumn- and spring-planted garlics of each cultivar were almost the same. However, in the north cultivars, spring-planted garlics continued vigorous bulb growth until later than autumn-planted ones. In spring-planting culture, most cultivars formed intermediate and/or single-cloved bulbs. The rates of such abnormal bulbs of the north cultivars were lower than those of the south ones, and those of the north late-maturing cultivars were much lower. Maximum bulb yield of spring-planted garlics was produced when cloves were first stored at outdoor temperatures and then at -2 C from early winter to the planting date. Spring-planting culture of garlic in cold districts was a promising cropping procedure when the north late-maturing cultivars were used. [AS]

v.58(1):139-147, JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE, JOURNAL OF THE

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