Agronomic and physiological characteristics of high‐yielding ratoon rice varieties

2021 ◽  
Author(s):  
Qiang Zhang ◽  
Xiangchen Liu ◽  
Guilong Yu ◽  
Hao Wang ◽  
Daqing Feng ◽  
...  
Keyword(s):  
Physiological Characteristics ◽  
Rice Varieties

scholarly journals The agro-physiological characteristics of three rice varieties affected by water depth in the coastal agricultural land of Yogyakarta, Indonesia

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
Nasrudin Nasrudin ◽  
Budiastuti Kurniasih
Keyword(s):  
Leaf Area ◽  
Water Depth ◽  
Agricultural Land ◽  
Physiological Activity ◽  
Proline Content ◽  
Physiological Characteristics ◽  
Growth And Yield ◽  
Strong Wind ◽  
Rice Varieties ◽  
Main Plot

Abstract. Nasrudin, Kurniasih B. 2021. The agro-physiological characteristics of three rice varieties affected by water depth in the coastal agricultural land of Yogyakarta, Indonesia. Biodiversitas 22: 3656-3662. Coastal agricultural land has many obstacles of abiotic stress for plant cultivation, including waterlogging, strong wind, and high salt concentration. Therefore, the use of adaptive rice varieties, as well as good land management, are expected to be a solution for rice cultivation in the coastal agricultural land. The objective of this study was to examine the agro-physiological characteristics of three rice varieties planted in coastal agricultural land which were affected by water salinity up to more than 10 dS m-1. This study was conducted from February to July 2017 at Tirtohargo, Bantul District, Special Region of Yogyakarta. The experiment was arranged in a split-plot design, with the depths of sunken-bed as a main plot consisted of 25 cm and 50 cm, and variety as a subplot consisted of IR 64, Inpara 4, and Dendang. The experiment results showed that Dendang had the highest growth and yield in coastal agricultural land compared to Inpara 4 and IR64. The highest value is indicated in plant height, leaf area, proline content, and productivity. The depths 50 cm of sunken-bed increased leaf area and proline content, whereas the depths of 25 cm sunken-bed increased productivity. Dendang showed better agro-physiological activity and had the highest productivity. The depths of 50 cm increased several parameters in agro-physiological characteristics, however, the depths of 25 cm increased grain yield. Among the varieties tested, in salinity, the highest growth and yield variables were shown by Dendang, followed by IR 64 and Inpara 4.

Difference of Root Morphological and Several Physiological Characteristics betweenIndicaandJaponicaSuper Rice Varieties

2014 ◽  
Vol 40 (6) ◽  
pp. 1066 ◽  
Author(s):  
Jin-Long GONG ◽  
Zhi-Peng XING ◽  
Ya-Jie HU ◽  
Hong-Cheng ZHANG ◽  
Qi-Gen DAI ◽  
...  
Keyword(s):  
Physiological Characteristics ◽  
Rice Varieties

Effects of Soda Saline-Alkali Stress on Physiological Characteristics of Rice in Different Concentrations

2014 ◽  
Vol 1010-1012 ◽  
pp. 1225-1229
Author(s):  
Ming Xia Zhu ◽  
Feng Jin ◽  
Xi Wen Shao ◽  
Xian Ying Gao ◽  
Yan Qiu Geng ◽  
...  
Keyword(s):  
Salt Stress ◽  
Sugar Content ◽  
Rice Variety ◽  
Soluble Sugar ◽  
Soil Improvement ◽  
Salt Resistance ◽  
Physiological Characteristics ◽  
Alkali Stress ◽  
Rice Varieties ◽  
Reference Index

Taking Changbai 9 and Changbai 22 as experiment material, using pot experiment, to study of different concentration effect of saline alkali stress on physiological characteristics of rice in different growth periods. The results showed that, effect of saline alkali stress on the physiological characteristics of the same rice variety and soil characteristics of different resistant rice varieties are different. Weak salt resistance of Changbai 22 of chlorophyll , soluble sugar and MDA of salt stress more sensitive than saline resistance strong of Changbai 9,and the change trend of the physiological indexes of two cultivars under saline alkali stress is consistent, with the increasing concentration of salt stress, leaf chlorophyll content, soluble sugar content and soluble protein content firstly increased and then decreased,while the MDA concentration showed an increasing trend. At the same time with the increase of salt stress concentration, accumulation of soluble sugar in leaves of Changbai 9 increased even more than Changbai 22,indicating the Changbai 9 may be mainly through the accumulation of soluble sugar to alleviate the toxic effects of osmotic stress. This study can be used as an important reference index for soda saline alkali soil rice planting, soil improvement and comprehensive utilization.

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