衡阳引种沾化冬枣第一年枣头生长规律的研究初报

Research about Growth Rhythm of once Branch of Zizyphus jujube cv Zhanhua-Dongzao in First Year in Hengyang

根据当前衡阳地区栽种冬枣表现生长势弱、年生长量小的现象,我们从山东引进了沾化冬枣优良品种,并以本省的鸡蛋枣作对照进行研究,通过第一年的生长规律观察,得知沾化冬枣在湘南地区定植后第一年枣头伸长生长规律,沾化冬枣头年生长节律表现:其枣头在开始生长后的第四周伸长生长速度达最大值,部分植株的枣头有二次伸长生长现象,但生长持续时期不如鸡蛋枣长,年生长量不如鸡蛋枣大。定植后第一年沾化冬枣枣头伸长生长的关键时期是第一次生长。

Because of the growth slowly and quantity of growth small of Ziziphus jujube cv zhanhua -dongzao in Hengyang, we have researched it comparison with Zizyphus jujube cv jidangzao, By observed about develop - rule of once branch of Zizyphus jujube cv zhanghua - dongzao at first year, we knew it growth rhythm in Hengyang: Its growth rate is max at fourth week,. Some Zizyphus jujube cv zhanhua -dongzao grow twain time, and growth continuance period is shorter than Zizyphus jujube cv jidangzao, and capacity is litter than that . The key time of growth of once branch ofZiziphus jujube cv zhanhua - dongzao in first year is the first growth. .