摘要
以瓶插寿命、弯颈率、复水率、鲜重损失率、花朵开放直径为衡量指标,筛选出水分胁迫耐性品种‘夏克拉’和敏感品种‘友谊’月季切花。并以耐性和敏感品种为材料,研究月季切花采后水分胁迫耐性与脯氨酸积累的关联性。结果表明:随着水分胁迫的加强,游离脯氨酸的累积显著增加,且水分胁迫耐性强的品种在轻度水分胁迫时游离脯氨酸累积量小于敏感的品种,但深度胁迫时其累积量则明显大于水分胁迫耐性弱的敏感品种。因此,脯氨酸的积累可作为月季切花水分胁迫耐性差异的筛选指标。
‘Shakira’,a rose cultivar with strong tolerance to water stress and‘Friendship’,a sensitive rose cultivar to water stress,were screened out from 12 cut rose cultivars which are popular in the current market,according to vase life,bent neck rate,water recovery rate,fresh weight loss and flowers diameter. The two cultivars were used to study the relationship between tolerance to water stress and accumulation of proline. The result showed that with the increasing of water stress,the content of free proline was significantly increased. The accumulation of proline in‘ Shakira’was less than that of ‘Friendship’under the light water stress,but became much higher than that of ‘Friendship’ with the severe water stress. Therefore,the accumulation of proline can be considered as the indicator of tolerance to water stress in the cut roses.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2010年第2期74-79,共6页
Scientia Silvae Sinicae
基金
教育部春晖计划项目(KX140407)
