新型调节剂NP-2000对水稻苗期主要生理性状的影响  

Effect of a New Regulator NP-2000 on Primary Physiological Characteristics of the Rice Seedlings

作　　者：史齐[1] 萧浪涛[1] 郭兆武[1] 刘清[1] 童建华[1] 

机构地区：[1]湖南省植物激素与生长发育重点实验室,湖南长沙410128

出　　处：《湖南农业科学》2007年第4期49-51,54,共4页Hunan Agricultural Sciences

基　　金：国家自然科学基金2005(30540019)

摘　　要：用新型植物生长调节剂NP-2000原液的3种浓度100、2003、00倍液喷施水稻苗期叶片,研究了NP-2000对水稻苗期生长及生理特性的影响。结果表明,此调节剂对水稻株高分蘖数无影响,但可有效提高水稻苗期的净光合速率,低浓度的NP-2000在喷施后12 d能有效提高水稻叶片IAA、GA1、Z的含量,对ABA的含量影响不显著。此调节剂对水稻苗期的调控作用值得进一步研究。The effects of NP-2000,a new regulator,on the growth and physiological characteristics of rice seedlings were studied by spraying different concentration（100 x,200 x and 300 x） of NP-2000.It showed that NP-2000 had no significant effects on stem length and tiller numbers,but sigrificantly improved photosynthetic rate.IAA,GA1 and Z contents increased when treated with low NP-2000 concentration for 12 days.

关 键 词：NP-2000 水稻苗期 净光合速率 内源激素 

分 类 号：S482.8[农业科学—农药学] S511.012[农业科学—植物保护]