Vernalisation and photoperiod sensitivity in wheat: The response of floret fertility and grain number is affected by vernalisation status

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• 作者：Ursula Steinfort^a ; ^b ; ¹ ; ^{usteinfo@uc.cl} ; Shu Fukai^b ; ^{s.fukai@uq.edu.au} ; Ben Trevaskis^c ; ^{ben.trevaskis@csiro.au} ; Donna Glassop^d ; ^{donna.glassop@csiro.au} ; Amy Chan^e ; ^{amy.chan@uqconnect.edu.au} ; M.Fernanda Dreccer^a ; ^{fernanda.dreccer@csiro.au}
• 关键词：DC31 ; decimal code detection of the first node on the Zadoks scale ; DC65 ; anthesis defined by the Zadoks scale ; LD ; long day ; LSD ; least significant difference ; NILs ; near isogenic lines ; PAR ; photosynthetically active radiation ; PPD1 ; PHOTOPERIOD1 ; REML ; restricted maximum likelihood ; SD ; short day ; SDW ; spike dry weight ; SD1 ; first sowing date ; SD2 ; second sowing date ; SE ; stem elongation ; VRN1 ; VERNALIZATION1
• 刊名：Field Crops Research
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：203
• 期：Complete
• 页码：243-255
• 全文大小：2786 K
• 卷排序：203

文摘

Reproductive development of wheat near isogenic lines combining VRN1 and PPD-D1 studied. More fertile florets with longer stem elongation and higher anthesis spike biomass if plants vernalised. Vernalised plants had more grains in main shoot and tiller spikes than non-vernalised plants. Non vernalised winter lines had slow growing apex, shorter spikes, high spikelet density and less grains per spike. Regulation of grain set and synchrony as influenced by VRN1 and PPD-D1 deserve further study.