北缘蔗区甘蔗专用留种田栽培技术研究──Ⅰ.植物生长调节剂对甘蔗生长影响的研究  

A Study on Cultivation Techniques of Sugarcane Special Seed-tuber in the North Marginal Cane-growing Region Ⅰ.A Study about Plant Growth Regulator which Affects Growth of Sugarcane

作　　者：毛先清 翦豪 周金明 宋仁恒 刘玉文 

机构地区：[1]湖南省西洞庭农场,湖南415137

出　　处：《甘蔗糖业》1998年第1期12-17,共6页Sugarcane and Canesugar

摘　　要：本研究以湘北蔗区常规品种NCo310为材料，在1996年进行喷施几种植物生长调节剂和加大播种密度的试验。观察了甘蔗的总茎数、株高的变化，考察了甘蔗的总芽数、茎粗、节间长度、单茎重等农艺性状。结果表明：所喷植物生长调节剂对节间长度有明显影响，但对总芽数无显著影响。在北缘蔗区建立甘蔗专用留种田只有加大种植密度才能够增加甘蔗总芽数。一般每公顷增加总芽数36·46万个，增加比例为23.93％。采用甘蔗专用田种田栽培技术，可以明显地提高北缘蔗区甘蔗生产水平。A study was conducted in 1996 with leading variety i. e. NCo310 in NortherHunan Several kinds of the plant growth regulartors and higher plant density wereappl ied to sugarcane special seed-tuber field. The total of buds and hight of theplants were observed and the agricultural properties such as the total of the buds.The diameter of the single plant, the length between nodes, the weight of the singleplant were researved. The results revealed that these plant growth regulartorsobviously affected the length between nodes, but gave little effect to total amountof buds. Increasing plant densi ty of special seed-tuber f ield contributed to producemore buds,Generally, 364600 buds must be added in each hectare, the proportion can be 23. 91%.It is clear that these cultivation techniques can obviously improve the production ofsugarcane in north marginal cane growing region.

关 键 词：植物生长调节剂 甘蔗 栽培 

分 类 号：S566.104.4[农业科学—作物学]