[1]邓西平,山仑.糜、谷不同成苗阶段的需水特性[J].水土保持研究,1988,(02):59-64.
Deng Xiping,Shan Lun.The Water Requirement Characteristics of Proso and Millet Seedlings at Different Developmental Stages[J].Research of Soil and Water Conservation,1988,(02):59-64.
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Deng Xiping,Shan Lun.The Water Requirement Characteristics of Proso and Millet Seedlings at Different Developmental Stages[J].Research of Soil and Water Conservation,1988,(02):59-64.
糜、谷不同成苗阶段的需水特性
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
期数:
1988年02期
页码:
59-64
栏目:
出版日期:
1900-01-01
- Title:
- The Water Requirement Characteristics of Proso and Millet Seedlings at Different Developmental Stages
- 摘要:
- 在水和0.3M甘露醇溶液的模拟水分胁迫条件下,对糜、谷不同或苗阶段的含水率、水势、呼吸速率、淀粉酶活力和幼苗生长量进行了测定及结果分析,根据幼苗生长发育的不同,以水分界限为基础,可将糜、谷的成苗阶段划分为:风干种子的假死阶段;以微弱的呼吸作用转向呼吸作用明显上升的吸涨阶段;淀粉酶活力增大、呼吸作用加强的萌发阶段以及生命代谢活动旺盛的根、芽伸长阶段.试验还表明:在两种水分条件下,谷子的吸水速率及水势值均高于糜子,萌发时间也早于麋子.
- Abstract:
- Under the water and water stress of 0.3M mannitol solution moderling conditions,during the different developmental stages of proso and millet seedlings,water content,water potential,respiratory rate,amylase activity and seedling growth were measured and analysed,with the water conditions as a major factor.Considering the difference between seedling growth and development,through controlling water regimes,the developmental stages of Proso and Millet seedlings may be divided as follows:(1) quiesent stage in which metabolic activity is very weak;(2) imbibitional stage in which respiration from weak become to strong;(3) germinating stage in which amylase activity and respiratory rate increase rapidly and(4) radicle and plumule extensive stage in which metabolism and growth are very actively.The results also showed that under the two kinds of water conditions,water absorbing rate,water potential and germination time of the Millet were more higher and erlier than that of the Proso.
参考文献/References:
[1] 山仑、郭礼坤:春播谷类作物成苗期间的抗旱性及需水条件,《作物学报》,1984(10),第4期,257-263页.
[2] 陈培元等:不同水分张力和亚适温条件下冬小麦种子萌发特性和抗旱性的关系,《植物生理学报》1982(8),第6期,117-121.
[3] A.M,Mayer,The germinatioa of seeds,Press by Per Ganson.1982,P25-27,P170-180.
[4] S,J.Scott,ect,Review of Data Analysis Methods for seed Germination.Coop Science.Novetmber-December,1984,P1192-1199.
[5] 赵淑橘:绿豆上胚轴伸长生长与细胞渗透势的相关性,《植物生理学报》,1985(11),4期,392-401.
更新日期/Last Update:
1900-01-01