植物生长调节剂对大豆氮代谢相关生理指标以及产量和品质的影响

Effects of Plant Growth Regulators (PGRs) on Nitrogen Metabolism Related Indicators and Yield in Soybean

在大田栽培条件下,以垦农4号为材料,在始花期叶面喷施不同植物生长调节剂,比较大豆叶片中游离氨基酸含量、硝态氮含量、可溶性蛋白含量和硝酸还原酶活性的变化差异,研究叶面喷施植物生长调节剂6-苄基腺嘌呤(6-BA)、脱落酸(ABA)对大豆氮代谢相关生理指标以及对大豆产量品质的调控效应。结果表明:叶面喷施6-BA和ABA分别提高了大豆叶片中游离氨基酸含量、硝态氮含量、可溶性蛋白质含量和硝酸还原酶活性。综合分析表明,R1期叶面喷施植物生长调节剂6-BA、ABA调控了大豆叶片中氮代谢相关生理指标,极显著提高了大豆单株粒数、粒重等产量构成因素,其中6-BA还能够极显著提高大豆籽粒中脂肪含量。

Sprayed different plant growth regulator on Kennong 4 in early flowering season and compared the changing deviations of free amino acids,nitrate-nitrogen,soluble protein and NR activities in leaves.The regulation effect of 6-BA and ABA on nitrogen metabolism,yield and quality of soybean were studied.The results showed that sprayed 6-BA and ABA on leaves regulated the nitrogen metabolism,enhanced the contents of free amino acids,nitrate-nitrogen,soluble protein and NR activities and very significantly improved seeds number per plant and seeds weight.6-BA could significantly increase the fat content in soybean seeds.