EFFECTS OF PHOTOPERIOD ON KINETIN-INDUCED TUBERIZATION OF ISOLATED POTATO STOLONS CULTURED INVITRO

被引:19
作者
PELACHO, AM
MINGOCASTEL, AM
机构
[1] Dept. of Plant Production, Agronomical Engineering School, Polytechnical University of Catalonia, Lérida, 25006, Rovira Roure
[2] Dept. Agricultural Production, Public University of Navarra, Pamplona, 31006, Sadar
来源
AMERICAN POTATO JOURNAL | 1991年 / 68卷 / 08期
关键词
KINETIN; PHOTOPERIOD; SOLANUM-TUBEROSUM L;
D O I
10.1007/BF02853770
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Are short-day (SD) conditions inductive or permissive for potato tuberization? This question was addressed using an in vitro culture system. Kinetin induction of in vitro tuberization in potato stolons cultured in the dark can be partially inhibited by light treatments. Photoperiod required for a major inhibition varied with cultivars: 8 hours for cv. Red Pontiac and 16 hours for cv. Kennebec. Short photoperiods decreased kinetin-induced tuberization for all cultivars. Stolons cultured on kinetin-free medium generally did not tuberize, regardless of light treatment. Effects of kinetin and photoperiod on stolon and tuber development are observed. Relationships among kinetin, photoperiod and tuber-inducing stimulus produced under short days are discussed.
引用
收藏
页码:533 / 541
页数:9
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