摘要
在河北省承德市鱼儿山牧场中国农业大学科技攻关实验站 ,以生长二年的老芒麦为试验材料 ,研究不同生长时期老芒麦植株幼穗的分化规律。试验结果表明 ,老芒麦幼穗分化过程中茎尖生长锥出现一系列的形态变化 ,并根据分化的特征将其分为初生期、伸长期、结节期、二棱期、小穗突起期、颖片突起期、小花突起期和雌雄蕊形成期
The experiments were conducted at Yuershan Farm of Chengde City in Hebei province to study the differentiation and formation of young spike of siberian wildrye seeded two years ago.The morphological changes of shoot apex appeared with siberian wildrye plants growing.According to the characters of the differentiation,the course of differentiation of young spike of siberian wildrye can be divided into vegetative stage,elongation stage, single ridge stage, double ridge stage, spikelet protuberances stage, glume protuberances stage, floret initiation stage, stamen and gynoecium initiation stage.
出处
《中国草地》
CSCD
2004年第5期15-20,共6页
Grassland of China
关键词
老芒麦
幼穗
分化
Siberian wildrye
Young spike
Differentiation
