{"title":"除去子蘖对黑麦草茎根生长的影响","authors":"Arif Hasan Khan Robin, Cory Matthew","doi":"10.1002/glr2.12023","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>This study investigated the effects of daughter tiller removal on parent tiller development in <i>Lolium perenne</i>.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>Plants of <i>L. perenne</i> were grown hydroponically to allow separation of roots by phytomer position on the tiller axis and allowed to form two daughter tillers. In Experiment 1, adult daughter tillers were excised and effects on subsequent main tiller growth were observed for 16 days, on average. In Experiment 2, the growth of main tillers with or without daughter tillers was compared over 90–100 days. Two cultivars, ‘Alto’ bred from New Zealand germplasm and ‘Aberdart’ bred from United Kingdom germplasm were tested.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Excision of adult daughter tillers reduced the dry weight of older roots at the base of parent tiller axes and accelerated new phytomer appearance. Preventing tillers from forming daughter tillers by new tiller excision resulted in increased individual leaf and root dry weight in tillers without daughter tillers.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>The data indicated that daughter tillers contributed substrate for root development of their parent tillers. The presence of daughter tillers reduced the size of their main tiller but greatly enhanced whole plant yield.</p>\n </section>\n </div>","PeriodicalId":100593,"journal":{"name":"Grassland Research","volume":"1 2","pages":"103-110"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glr2.12023","citationCount":"0","resultStr":"{\"title\":\"Effects of daughter tiller removal on shoot and root growth of the parent tiller in Lolium perenne\",\"authors\":\"Arif Hasan Khan Robin, Cory Matthew\",\"doi\":\"10.1002/glr2.12023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Background</h3>\\n \\n <p>This study investigated the effects of daughter tiller removal on parent tiller development in <i>Lolium perenne</i>.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>Plants of <i>L. perenne</i> were grown hydroponically to allow separation of roots by phytomer position on the tiller axis and allowed to form two daughter tillers. In Experiment 1, adult daughter tillers were excised and effects on subsequent main tiller growth were observed for 16 days, on average. In Experiment 2, the growth of main tillers with or without daughter tillers was compared over 90–100 days. Two cultivars, ‘Alto’ bred from New Zealand germplasm and ‘Aberdart’ bred from United Kingdom germplasm were tested.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>Excision of adult daughter tillers reduced the dry weight of older roots at the base of parent tiller axes and accelerated new phytomer appearance. Preventing tillers from forming daughter tillers by new tiller excision resulted in increased individual leaf and root dry weight in tillers without daughter tillers.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusions</h3>\\n \\n <p>The data indicated that daughter tillers contributed substrate for root development of their parent tillers. The presence of daughter tillers reduced the size of their main tiller but greatly enhanced whole plant yield.</p>\\n </section>\\n </div>\",\"PeriodicalId\":100593,\"journal\":{\"name\":\"Grassland Research\",\"volume\":\"1 2\",\"pages\":\"103-110\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glr2.12023\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Grassland Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/glr2.12023\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Grassland Research","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/glr2.12023","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effects of daughter tiller removal on shoot and root growth of the parent tiller in Lolium perenne
Background
This study investigated the effects of daughter tiller removal on parent tiller development in Lolium perenne.
Methods
Plants of L. perenne were grown hydroponically to allow separation of roots by phytomer position on the tiller axis and allowed to form two daughter tillers. In Experiment 1, adult daughter tillers were excised and effects on subsequent main tiller growth were observed for 16 days, on average. In Experiment 2, the growth of main tillers with or without daughter tillers was compared over 90–100 days. Two cultivars, ‘Alto’ bred from New Zealand germplasm and ‘Aberdart’ bred from United Kingdom germplasm were tested.
Results
Excision of adult daughter tillers reduced the dry weight of older roots at the base of parent tiller axes and accelerated new phytomer appearance. Preventing tillers from forming daughter tillers by new tiller excision resulted in increased individual leaf and root dry weight in tillers without daughter tillers.
Conclusions
The data indicated that daughter tillers contributed substrate for root development of their parent tillers. The presence of daughter tillers reduced the size of their main tiller but greatly enhanced whole plant yield.
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