caa a22 4500 445323256 CHVBK 20180317142711.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10681-010-0332-7 doi (NATIONALLICENCE)springer-10.1007/s10681-010-0332-7 Impact of seasonal changes on spikelets per panicle, panicle length and plant height in rice ( Oryza sativa L.) [Elektronische Daten] [Mallikarjuna Kovi, Xufeng Bai, Donghai Mao, Yongzhong Xing] Temperature and photoperiod fluctuate rapidly in different seasons of the year, and analyzing their effects on rice yield components is crucial for adaptation of rice under various climatic conditions. To study the effects of seasonal changes on yield components, 168 recombinant inbred lines derived from a cross between two Oryza sativa L. indica varieties, Zhenshan 97 and Zhongzao 18 were grown for phenotype collection, in three different seasons, within a year. The results implied that temperatures across the three seasons played a crucial role in determining the trait effects. Spikelets per panicle (SPP), panicle length (PL) and plant height (PH) traits increased with high temperatures in middle season. Genetic analysis detected major quantitative trait loci (QTLs) qSPP10, qPL10 and qPH10 for SPP, PL and PH in the interval between markers RM1375 and RM3229 on chromosome 10, in all the three seasons. Two-way ANOVA showed that genotype by environment and QTL by environment interactions for these traits were highly significant (P<0.0001). The region with a cluster of QTLs detected in all three seasons could be the preferred target to breeders in developing rice varieties that can be accustomed to different seasonal changes. Springer Science+Business Media B.V., 2011 Rice ( Oryza sativa ) nationallicence Recombinant inbred lines nationallicence Seasonal changes nationallicence Temperature nationallicence Quantitative trait locus nationallicence Kovi Mallikarjuna National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut Bai Xufeng National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut Mao Donghai National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut Xing Yongzhong National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut Euphytica Springer Netherlands 179/2(2011-05-01), 319-331 0014-2336 179:2<319 2011 179 10681 https://doi.org/10.1007/s10681-010-0332-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-010-0332-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kovi Mallikarjuna National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Bai Xufeng National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Mao Donghai National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Xing Yongzhong National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, 430070, Wuhan, China aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 179/2(2011-05-01), 319-331 0014-2336 179:2<319 2011 179 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer