scholarly journals Floral Impotency Due to Cool Weather in Paddy Rice plants in the Early-Season Culture Area.

1991 ◽  
Vol 60 (2) ◽  
pp. 225-233 ◽  
Author(s):  
Tomio WATANABE ◽  
Yoshio TAKEICHI
Keyword(s):  
Paddy Rice ◽  
Early Season ◽  
Rice Plants ◽  
Culture Area

scholarly journals Some Considerations upon the Reason of Increase of Panicles in Number, in Early Season Cultivation of Paddy Rice.

1959 ◽  
Vol 27 (2) ◽  
pp. 182-184 ◽  
Author(s):  
Keichi SAMOTO ◽  
Katsuo SUGIMOTO ◽  
Masayoshi UDA ◽  
Kaichiro SUZUKI
Keyword(s):  
Paddy Rice ◽  
Early Season

Early season detection of rice plants using RGB, NIR-G-B and multispectral images from unmanned aerial vehicle (UAV)

2020 ◽  
Vol 169 ◽  
pp. 105223 ◽  
Author(s):  
Hengbiao Zheng ◽  
Xiang Zhou ◽  
Jiaoyang He ◽  
Xia Yao ◽  
Tao Cheng ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Multispectral Images ◽  
Early Season ◽  
Rice Plants ◽  
Aerial Vehicle

scholarly journals Mitigation Potential and Yield-Scaled Global Warming Potential of Early-Season Drainage from a Rice Paddy in Tamil Nadu, India

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 202 ◽  
Author(s):  
Aung Zaw Oo ◽  
Shigeto Sudo ◽  
Kazuyuki Inubushi ◽  
Umamageswari Chellappan ◽  
Akinori Yamamoto ◽  
...  
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Tamil Nadu ◽  
Rice Yield ◽  
Ghg Emissions ◽  
Paddy Rice ◽  
Wet Season ◽  
Wetting And Drying ◽  
Early Season ◽  
Ch4 Emissions

Water-intensive systems of rice cultivation are facing major challenges to increase rice grain yield under conditions of water scarcity while also reducing greenhouse gas (GHG) emissions. The adoption of effective irrigation strategies in the paddy rice system is one of the most promising options for mitigating GHG emissions while maintaining high crop yields. To evaluate the effect of different alternate wetting and drying (AWD) irrigation strategies on GHG emissions from paddy rice in dry and wet seasons, a field experiment was conducted at the Tamil Nadu Rice Research Institute (TRRI), Aduthurai, Tamil Nadu, India. Four irrigation treatments were included: One-AWD (one early drying period), Two-AWD (two early drying periods), Full-AWD (wetting and drying cycles throughout the rice season), and CF (continuous flooding). Different rice varieties were also tested in the experiment. In this study, we emphasized one factor (irrigation effect) that affects the dependent variable. The results show that early AWD treatments reduced methane (CH4) emissions by 35.7 to 51.5% in dry season and 18.5 to 20.1% in wet season, while full-AWD practice reduced CH4 emissions by 52.8 to 61.4% compared with CF. Full-AWD in dry season not only significantly reduced CH4 emission during that season, it also resulted in the decline of the early season emission in the succeeding wet season. Global warming potential (GWP) and yield-scaled GWP were reduced by early or full season AWD in both rice seasons. The GWP value from nitrous oxide (N2O) was relatively low compared to that from CH4 in both rice seasons. Rice yield was not affected by irrigation treatments although varietal differences in grain and straw yields were observed in both rice seasons. This study demonstrated that early season water managements are also effective in reducing CH4 and total GHG emissions without affecting rice yield.

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