棉花超高产群体质量与产量关系研究

The Study on the Relationship Between Yield and Population Quali- ty for Super High Yield in Cotton

试验结果表明，皮棉产量在１８７５ｋｇ．ｈｍ￣（－２）以上时，必须保持较高的群体质量。其中果节量为２２５～３２２．５万个·ｈｍ￣（－２），富照期成铃强度在２１６００个·ｈｍ￣（－２）·日以上，晚秋桃形成期成铃强度在１０９８２．７个，ｈｍ￣（－２）·日以上。株型较紧凑，最大ＬＡＩ在３．８７～４．４５范围内，成熟期（９月１５日）ＬＡＩ保持在２．３５～２．５７，叶铃比３．５５～４．１１：１，叶面积载铃量在３２个·ｍ￣（－２）叶以上。

The result of the experiment of super high yield of cotton culture in Jiangsushowed that there must be the high plant population for good development of cotton to ob- tain lint cotton yield 1875kg/ha. The boll retained intensity during rich day- shinning isover 21600 bool/ha· and over 10982.7 boll/ha during later autumn boll development.theplant shape is compact,the maxi.LAI is 3.87～4.45,the LAI is 2,35～2.57 in the open-ing period(15th,ept),leaf numbers/boll is 3.55～4.11:1.0,boll load of unit leafarea is over 32 boll/m2。