@Article{phyton.2022.018328,
AUTHOR = {Xiaofeng Ai, Ruoyu Xiong, Xueming Tan, Haixia Wang, Jun Zhang, Yongjun Zeng, Xiaohua Pan, Qinghua Shi, Taoju Liu, Yanhua Zeng},
TITLE = {Effects of High Temperature and Strong Light Combine Stress on Yield and Quality of Early <i>Indica</i> Rice with Different Amylose Content during Grout Filling},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {91},
YEAR = {2022},
NUMBER = {6},
PAGES = {1257--1267},
URL = {http://www.techscience.com/phyton/v91n6/46806},
ISSN = {1851-5657},
ABSTRACT = {High temperature (HT) accompanied with strong light (SL) often occurs in early <i>indica</i> rice production during
grout filling stage in southern China, which accelerates grain ripening. Two <i>indica</i> rice cultivars with different
amylose content (Zhongjiazao17, ZJZ17, high amylose content; Xiangzaoxian45, XZX45, low amylose content)
were grown under control (CK), HT, and HT+SL conditions during grout filling to determine the effects on grain
yield and quality of rice. The results showed that compared with CK, HT and HT+SL significantly reduced the
1000-grain weight and filled grain rate whether in high or low amylose content early <i>indica</i> rice cultivars during
grout filling, resulting in a significantly lower grain yield. Meanwhile, HT and HT+SL significantly decreased the
milled rice rate, brown rice rate and head rice rate, whereas significantly increased chalky rate and chalky degree;
and breakdown decreased and setback, pasting temperature increased in the cultivars, leading to the poor processing, appearance and cooking and eating quality of early <i>indica</i> rice cultivars. Compared with HT, the yield of
ZJZ17 was significantly decreased under HT+SL, due to the lower 1000-grain weight. However, the effect of
HT+SL on rice quality varied in the cultivars. In general, the yield and rice quality of ZJZ17 were relatively poor
under HT+SL. Our results suggested that HT and HT+SL during grout filling had significant damage to the yield
and quality of early <i>indica</i> rice cultivars, especially HT+SL, while the high amylose cultivar ZJZ17 showed a higher
negative effect under HT+SL.},
DOI = {10.32604/phyton.2022.018328}
}