穗伴侣调理剂对小麦生长发育及产量的影响  

Effect of Suibanlyu Conditioner on Growth and Yield of Wheat

作　　者：赵群[1] ZHAO Qun(Agricultural Technology Extension Center in Huaiyin District,Huaian City,Huaian Jiangsu 223300)

机构地区：[1]淮安市淮阴区农业技术推广中心,江苏淮安223300

出　　处：《现代农业科技》2023年第9期1-3,6,共4页Modern Agricultural Science and Technology

摘　　要：为研究在始穗期应用穗伴侣调理剂对小麦抗倒性及产量的影响,以淮麦44为试验材料,开展了不同用量的穗伴侣对小麦株高、节长、节粗、壁厚、穗长、抗折力及产量性状的影响试验。结果表明:在小麦始穗期喷施穗伴侣750~1500 mL/hm^(2)可以使小麦株高下降1.7~3.3 cm、相对重心高度下降0.3~0.9 cm;穗茎节缩短0.5~1.8 cm,倒二节缩短0.1~0.3 cm;小麦穗茎节的茎粗增加0.29%~0.42%,倒二节和倒四节茎粗增加0.02%~0.09%;穗茎节壁厚增加0.87%,其他节间的壁厚也都有增加;小麦倒四节、倒五节的抗折力分别增加7.4%~19.4%、2.4%~14.5%;产量增加5.43%~7.95%。从抗倒增产的效果来看,建议在小麦始穗期喷施穗伴侣1500 mL/hm^(2)。In order to study the effect of Suibanlyu conditioner on lodging resistance and yield of wheat in the beginning heading stage,taking Huaimai 44 as the test material,this paper carried out the effects test of Suibanlyu at different dosages on plant height,joint length,joint diameter,wall thickness,ear length,folding resistance and yield of wheat.The results showed that the plant height and relative gravity height of wheat decreased by 1.7-3.3 cm and 0.3-0.9 cm when spraying Suibanlyu at the first heading stage of wheat.The panicle segment was shortened by 0.5-1.8 cm,and the second segment was shortened by 0.1-0.3 cm.The stem diameter of the stem joints of wheat ear increased by 0.29%-0.42%,and the stem diameter of the inverted second and inverted fourth joints increased by 0.02%-0.09%.The wall thickness of wheat ear was increased by 0.87%,and the wall thickness of other internodes was also increased.Folding resistance of fourth and fifth sections of wheat increased by 7.4%-19.4% and 2.4%-14.5%,respectively.The yield increased by 5.43%-7.95%.In view of the effect of lodging resistance and yield increase,it is recommended to spray Suibanlyu 1500 mL/hm^(2) at the beginning of wheat heading period.

关 键 词：小麦 穗伴侣调理剂 生长发育 产量 抗倒伏 

分 类 号：S435.12[农业科学—农业昆虫与害虫防治]