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| heat and drought stress are among the two most important environmental factors influencing rice growth, development, yield and quality. a comprehensive understanding of the impact of heat and drought stress will be critical in evaluating the impact of climate change on rice production. the objective of this review is to provide an overview of the influences of these two stresses on the above processes independently and in combination. this paper reviewed the effects of heat and drought combination on rice yield and grain quality and its physiological mechanism involved from the aspects of photosynthesis, stress resistance, proline, hormones, enzymatic activities, genomics and metabolomics. the regulation techniques to reduce the harms of heat, drought and combined heat and drought and issues for further studies were discussed. ¸ßκ͸ɺµÊÇÓ°ÏìË®µ¾Éú³¤¡¢·¢Óý¡¢²úÁ¿ºÍÆ·ÖʵÄÁ½¸ö×îÖØÒªµÄ»·¾³Òò×Ó£¬È«ÃæÀí½â¸ßκ͸ɺµÐ²ÆÈ¶ÔÆÀ¼ÛÆøºò±ä»¯¶ÔË®µ¾Éú²úµÄÓ°ÏìÖÁ¹ØÖØÒª¡£±¾ÎĸÅÊöÁ˸ßΡ¢¸Éºµ¼°Æä¸´ºÏвÆÈ¶ÔË®µ¾Éú³¤·¢Óý¡¢²úÁ¿Ðγɺ͵¾Ãׯ·ÖʵÄÓ°Ï죬´Ó¹âºÏ×÷Óᢿ¹ÄæÏµÍ³¡¢¸¬°±Ëá»ýÀÛ¡¢ÄÚÔ´¼¤ËØ¡¢ÕáÌÇ-µí·Û´úл;¾¶¹Ø¼üø»îÐÔ¡¢»ùÒò×éѧºÍ´úл×éѧµÈ·½Ãæ²ûÊöÆäÉúÀí»úÖÆ¡£Ö¼ÔÚ½øÒ»²½²ûÃ÷¸ßΡ¢¸Éºµ¼°Æä¸´ºÏвÆÈΣº¦Ë®µ¾Éú³¤¡¢·¢ÓýºÍ²úÁ¿½ø³ÌµÄÉúÀí»úÖÆ£¬Ìá³ö¼õÇáË®µ¾¸ßθɺµÐ²ÆÈµÄµ÷¿Ø´ëÊ©£¬²¢¶ÔδÀ´ÉîÈ뿪չˮµ¾¸ßθɺµÄæ¾³µÄÑо¿Ìá³ö½¨Òé¡£ |
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duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:50:43
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:50:53
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:51:02
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:51:07
fjtony163: ·ÒëEPI+1, ´ú·¢ 2019-01-28 02:51:12
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:50:43
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:50:53
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:51:02
duanhua2004(fjtony163´ú·¢): ½ð±Ò+50, ´ú·¢ 2019-01-28 02:51:07
fjtony163: ·ÒëEPI+1, ´ú·¢ 2019-01-28 02:51:12
|
Heat and drought stress are among the two most important environmental factors influencing rice growth, development, yield and quality. A comprehensive understanding of the impact of heat and drought stress will be critical in evaluating the impact of climate change on rice production. The objective of this review is to provide an overview of the influences of these two stresses on the above processes independently and in combination. This paper reviewed the effects of heat and drought combination on rice yield and grain quality and its physiological mechanism involved from the aspects of photosynthesis, stress resistance, proline, hormones, enzymatic activities, genomics and metabolomics. The regulation techniques to reduce the harms of heat, drought and combined heat and drought and issues for further studies were discussed. ¸ßκ͸ɺµÊÇÓ°ÏìË®µ¾Éú³¤¡¢·¢Óý¡¢²úÁ¿ºÍÆ·ÖʵÄÁ½¸ö×îÖØÒªµÄ»·¾³Òò×Ó£¬È«ÃæÀí½â¸ßκ͸ɺµÐ²ÆÈ¶ÔÆÀ¼ÛÆøºò±ä»¯¶ÔË®µ¾Éú²úµÄÓ°ÏìÖÁ¹ØÖØÒª¡£±¾ÎĸÅÊöÁ˸ßΡ¢¸Éºµ¼°Æä¸´ºÏвÆÈ¶ÔË®µ¾Éú³¤·¢Óý¡¢²úÁ¿Ðγɺ͵¾Ãׯ·ÖʵÄÓ°Ï죬´Ó¹âºÏ×÷Óᢿ¹ÄæÏµÍ³¡¢¸¬°±Ëá»ýÀÛ¡¢ÄÚÔ´¼¤ËØ¡¢ÕáÌÇ-µí·Û´úл;¾¶¹Ø¼üø»îÐÔ¡¢»ùÒò×éѧºÍ´úл×éѧµÈ·½Ãæ²ûÊöÆäÉúÀí»úÖÆ¡£Ö¼ÔÚ½øÒ»²½²ûÃ÷¸ßΡ¢¸Éºµ¼°Æä¸´ºÏвÆÈΣº¦Ë®µ¾Éú³¤¡¢·¢ÓýºÍ²úÁ¿½ø³ÌµÄÉúÀí»úÖÆ£¬Ìá³ö¼õÇáË®µ¾¸ßθɺµÐ²ÆÈµÄµ÷¿Ø´ëÊ©£¬²¢¶ÔδÀ´ÉîÈ뿪չˮµ¾¸ßθɺµÄæ¾³µÄÑо¿Ìá³ö½¨Òé¡£ Heat and drought stresses are the two most important environmental factors influencing rice growth, development, yield and quality. This paper explained the physiological mechanism of these two stresses from the aspects of photosynthesis, stress resistance, proline, hormones, enzymatic activities, genomics£¬and metabolomics and discussed their regulation techniques and future study. |
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