Effects of daughter tiller removal on shoot and root growth of the parent tiller in Lolium perenne

作     者：Arif Hasan Khan Robin Cory Matthew 

作者机构：The School of Agriculture and EnvironmentCollege of SciencesMassey UniversityPalmerston NorthNew Zealand Department of Genetics and Plant BreedingBangladesh Agricultural UniversityMymensinghBangladesh 

出 版 物：《Grassland Research》 (草地研究（英文）)

年 卷 期：2022年第1卷第2期

页      面：103-110页

学科分类：0502[文学-外国语言文学] 050201[文学-英语语言文学] 05[文学] 

基　　金：supported by a‘Massey University Vice‐Chancellor's Doctoral Scholarship’and study leave from Bangladesh Agricultural University 

主　　题：daughter tiller dry weight main tiller perennial ryegrass phytomer 

摘      要：Background:This study investigated the effects of daughter tiller removal on parent tiller development in Lolium ***:Plants of *** were grown hydroponically to allow separation of roots by phytomer position on the tiller axis and allowed to form two daughter *** Experiment 1,adult daughter tillers were excised and effects on subsequent main tiller growth were observed for 16 days,on *** Experiment 2,the growth of main tillers with or without daughter tillers was compared over 90–100 *** cultivars,‘Alto’bred from New Zealand germplasm and‘Aberdart’bred from United Kingdom germplasm were ***:Excision of adult daughter tillers reduced the dry weight of older roots at the base of parent tiller axes and accelerated new phytomer *** tillers from forming daughter tillers by new tiller excision resulted in increased individual leaf and root dry weight in tillers without daughter ***:The data indicated that daughter tillers contributed substrate for root development of their parent *** presence of daughter tillers reduced the size of their main tiller but greatly enhanced whole plant yield.