干旱区生态环境知识资源中心(Arid): Low soil temperature reducing the yield of drip irrigated rice in arid area by influencing anther development and pollination

Arid

	Low soil temperature reducing the yield of drip irrigated rice in arid area by influencing anther development and pollination
	Zhang Jun; Dong Peng; Zhang Haoyu; Meng Chaoran; Zhang Xinjiang; Hou Jianwei; Wei Changzhou
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2019
卷号	11 期号:3 页码:419-430
英文摘要	Drip irrigation can produce high rice yields with significant water savings; therefore, it is widely used in arid area water-scarce northern China. However, high-frequency irrigation of drip irrigation with low temperature well water leads to low root zone temperature and significantly reduce the rice yield compared to normal temperature water irrigated rice, for example, reservoir water. The main purpose of this paper is to investigate the effects of low soil temperature on the yield reduction of drip irrigated rice in the spike differentiation stage. The experiment set the soil temperatures at 18°C, 24°C and 30°C under two irrigation methods (flood and drip irrigation), respectively. The results showed that, at the 30°C soil temperature, drip irrigation increased total root length by 53% but reduced root water conductivity by 9% compared with flood irrigation. Drip irrigation also increased leaf abscisic acid and proline concentrations by 13% and 5%, respectively. These results indicated that drip irrigated rice was under mild water stress. In the 18°C soil temperature, drip irrigation reduced hydraulic conductivity by 58%, leaf water potential by 40% and leaf net photosynthesis by 25% compared with flood irrigation. The starch concentration in male gametes was also 30% less in the drip irrigation treatment than in the flood irrigation treatment at soil temperature 18°C. Therefore, the main reason for the yield reduction of drip irrigated rice was that the low temperature aggravates the physiological drought of rice and leads to the decrease of starch content in male gametes and low pollination fertilization rate. Low temperature aggravates physiological water deficit in drip irrigated rice and leads to lower starch content in male gametes and low pollination fertilization rate, which is the main reason for the reduced yield of drip irrigated rice. Overall, the results indicated that the low soil temperatures aggravated the water stress that rice was under in the drip irrigated environment, causing declines both in the starch content of male gametes and in pollination rate. Low temperature will ultimately affect the rice yield under drip irrigation.
英文关键词	soil temperature drip irrigation root hydraulic conductivity starch concentration rice yield arid area
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:6533719
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336143
作者单位	Zhang Jun, Shihezi University;;Nanyang Normal University, Key Lab of Oasis Ecology Agriculture of Xinjiang Production and Construction Group;;Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Shihezi;;Nanyang, ;; 832000;;473061.; Dong Peng, Nanyang Academy of Agricultural Sciences, Nanyang, Henan 473083, China.; Zhang Haoyu, Shihezi University, Key Lab of Oasis Ecology Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832000, China.; Meng Chaoran, Shihezi University, Key Lab of Oasis Ecology Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832000, China.; Zhang Xinjiang, Shihezi University, Key Lab of Oasis Ecology Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832000, China.; Hou Jianwei, Shihezi University, Key Lab of Oasis Ecology Agriculture of Xinjiang Production and Construction Group, Shihezi, Xinjiang 832000, China.; Wei Cha...
推荐引用方式 GB/T 7714	Zhang Jun,Dong Peng,Zhang Haoyu,et al. Low soil temperature reducing the yield of drip irrigated rice in arid area by influencing anther development and pollination[J],2019,11(3):419-430.
APA	Zhang Jun.,Dong Peng.,Zhang Haoyu.,Meng Chaoran.,Zhang Xinjiang.,...&Wei Changzhou.(2019).Low soil temperature reducing the yield of drip irrigated rice in arid area by influencing anther development and pollination.Journal of Arid Land,11(3),419-430.
MLA	Zhang Jun,et al."Low soil temperature reducing the yield of drip irrigated rice in arid area by influencing anther development and pollination".Journal of Arid Land 11.3(2019):419-430.