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低温反应敏感型供试品种中有不发生ＳＧｏ（外层型二次生长）和ＳＧｉ（内层型二次生长）及不发生ＳＧｏ只发生ＳＧｉ两类。播种前４０ｄ用３５℃处理蒜种使ＳＧｉ减轻；鳞芽分化发育期光周期对ＳＧｉ的发生影响不大。低温反应中间型包括发生ＳＧｏ和ＳＧｉ及不发生ＳＧｏ只发生ＳＧｉ两类品种。５℃处理蒜种诱发ＳＧｏ和ＳＧｉ，３５℃减轻ＳＧｏ的发生，但有使ＳＧｉ加重的趋势。光周期对ＳＧｏ的发生无明显影响，１２ｈ以下短日照促进ＳＧｉ发生。低温反应迟钝型品种一般不发生ＳＧｏ只发生ＳＧｉ．５℃处理蒜种或１２ｈ以下短日照对ＳＧｉ的发生有利
There was no SGo (outer secondary growth) and SGi (inner secondary growth) and no SGo SGi occurred in the low temperature sensitive test varieties. SGi was treated with garlic at 35 ℃ for 40 days before sowing, and the photoperiod of the shoot-bud differentiation had little effect on the occurrence of SGi. The low temperature reaction intermediate type includes SGo and SGi and SGo does not occur only two types of SGi. Treatment of garlic at 5 ℃ induced SGo and SGi, 35 ℃ to reduce the occurrence of SGo, but SGI aggravate the trend. The photoperiod had no significant effect on the occurrence of SGo, and SGi occurred under the short photoperiod below 12h. Low temperature insensitive varieties do not generally occur SGo SGi only occurs. Treatment of garlic at 5 ℃ or 12h short sunshine on the occurrence of SGi favorable