摘要
通过对１９９８年３月２０～２４日不同小麦品种晚霜冻害的观察表明：小麦对晚霜冻害的敏感期是雌雄蕊原基形成到药隔前期之间、幼穗冻伤率与霜冻时茎节长度呈显著的正相关。从小麦形态长相划分，竖叶型、叶色深绿、分蘖力强的品种较抗晚霜冻，春性品种较半冬性品种抗晚霜冻。
Late frost injury observations on different wheat cultivars were made on March 20￣24, 1998 The result showed that the most sensitive period to it is between the formation of pistil and stamen primordia and the antephase of anther isolator the rate of frost injured young spike was significatly and positively correlated with wheat stem height at that period Judging by morphological classification, if a cultivar belongs to vertical leaf type, with dark green leaf and strong tillering ability, it will has relatively higher resistance to late frost The investigations have proved that the springness form wheat has relatively stonger resistance to late frost than semiwinterness form wheat
出处
《中国农业气象》
CSCD
1999年第3期28-30,共3页
Chinese Journal of Agrometeorology
关键词
幼穗
冻伤率
晚霜冻
小麦
冷害
Young spike
Late frost
Rate of frost injured spike
Wheat
