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除草剂Oryzalin诱变西瓜四倍体及倍性鉴定
西瓜 Oryzalin 四倍体 诱变
2012/2/15
以两个二倍体西瓜自交系为实验材料,研究除草剂Oryzalin不同滴苗浓度(30,40,50,60mg/L)和不同处理时间(1,2,4,6d)对西瓜四倍体的诱变效果,同时进行变异植株的外部形态和气孔观察及染色体鉴定。结果表明:以50mg/L浓度,2d滴苗处理诱变效果最佳,两个材料四倍体诱变率分别达到1563%和1719%。其变异植株通过染色体计数法鉴定得出染色体数为44,确定为四倍体植株,植株表现为...
Cost reduction in cabbage cultivation by weed control using oryzalin herbicide and hoeing technology
Cabbage cultivation oryzalin herbicide economics analysis
2009/3/4
One pre‑emergent application of oryzalin 40% SC herbicide and one hoeing was found to control maximum pests of cabbage crop. By following proper date of sowing of cabbage crop and contr...