バレイショのマクロチューバーを種イモとする圃場栽培において 種イモの大きさおよび栽植密度が塊茎数と平均一個重に及ぼす影響

日本作物学会紀事

高田 明子¹  小林 晃¹  浅野 賢治¹  森 元幸¹  津田 昌吾¹  高田 憲和¹  西中 未央¹ 

[1] 北海道農業研究センター

关键词: Microtuber;    マイクロチューバー;    Individual tuber weight;    塊茎一個重;    Planting density;    栽植密度;    Potato;    バレイショ;    Seed tuber size;    種イモの大きさ;    Tuber number;    塊茎数;    品種間差異;   

DOI  :  10.1626/jcs.80.292

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Potato microtubers (MT) (about 1 gram fresh weight) are mass-produced under in vitro conditions, and are used as seed tubers in field. We previously found that potato varieties were divided into two types, larger tuber number with lighter individual tuber weight (type 1), and smaller tuber number with heavier individual tuber weight (type 2) in the plants from MT. The purpose of this study is to ascertain whether the effects of seed tuber size and planting density on the tuber number and individual tuber weight of MT plants vary with the type of varieties. In type 1 variety Norin 1, the plants from MT had larger number of tubers than those from conventional seed tubers (CT). On the other hand, in type 2 variety Nishiyutaka, the plants from MT had heavier individual tuber weight than those from CT. High planting density caused a larger tuber number per unit area and lighter individual tuber weight in both types of varieties, i.e., type 1 variety Irish Cobbler and type 2 variety Toyoshiro. We concluded that planting small size MT at a high density will be useful for the seed tuber production system in fields regardless of variety type.

【 授权许可】

Unknown