Studies on Cold Resistance and Breeding Techniques of Ginkgo Seedling

doi:10.3321/j.issn:1000-7091.2001.04.028

Abstract

Abstract: Sowing time, sow ing density, shade effect and cold resistance of ginkgo seedling were conducted in south Hebei. The result show ed that suitable sow ing t ime was middle of March;proper density was 60000 grains/ 666.7m₂;seedling could live 72h at 0℃, bud injured at -2℃ for 1h and dead at -4℃; new leaves were dead by 14% at -4℃ for 1h and all dead at -6℃ for 1h; growth leaves survived 26% at -8℃ for 1h and all dead at -10℃ for 1h.

Key words: Ginkgo, Sowing time, Breeding technique, Shade effect, Cold resistance

CLC Number:

S792.95

CHEN Puhong, HUO Chaozhong, LU Zhanyuan, CHEN Guohai. Studies on Cold Resistance and Breeding Techniques of Ginkgo Seedling[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(4): 136-139. doi: 10.3321/j.issn:1000-7091.2001.04.028.

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