摘要
以新合成的NAT配制成不同浓度(0.1、1.0、10.50mg·L^(-1))的水溶液,对小麦进行漫种、水培幼苗和大田灌浆期叶面喷洒处理,以与NAT相同浓度的NAA作对比,研究了喷后一定时期小麦叶片生理活性和收割时籽粒千粒重。结果表明,NAT使小麦在不同生长发育时期叶片中的叶绿素含量均增加;幼苗叶片呼吸速率下降;幼苗期低浓度处理NR活性增高,高浓度显著抑制,灌浆期则随处理浓度的升高而显著增加;籽粒千粒重明显高于对照。不论对叶片生理活性还是对籽粒千粒重的影响,NAT的总体效果均明显优于NAA,其中以1 mg·L^(-1)左右浓度的NAT处理效果最佳。
A series of solutions (0.1, 1.0, 10, 50 mg·L-1) were made with newlysynthesized N-(1-Naphthaleneacetyl)-N'-(4-Aminopyryl) thiourea, with which wheats were treated by seed soaking and by spraying solution-cultured plants in seedling stage and field plants ingrain filling stage. The same treatments were carried out using NAA instead of NAT as comparison. Leaf physiological activities and 1000-grain-weight were measured and relevant results wereas follows: NAT may increase chlorophyll content of leaves during wheat development. Respiratory rate can be reduced by NAT treatment and NR activities can be increased by treatment oflower-concentration of NAT at seedling stage, but at grain filling period, NR activities growssharply with increase in concentration of NAT. 1000-grain-weight is strikinghy higher than thatof control. Both on leaf physiological activity and 1000-grian-weight, total effects of NAT aremarkedly better than those of NAA, out of which, the best results exist with the treatment ofNAT of about 1.0 mg·L-1.
出处
《作物学报》
CAS
CSCD
北大核心
1998年第6期899-902,共4页
Acta Agronomica Sinica
基金
国家"九五"重中之重科技攻关项目"小麦大面积高产综合配套技术研究开发与示范"
项目编号:95-001-02
关键词
NAT
小麦
叶绿素含量
生理活性
NAT
Triticum aestivum L.
Chlorophyll content
NR activity
Respiratory rate
