Effects of planting date and variety on flooded rice production in the deepwater area of Thailand

Field level damage of deepwater rice by the 2011 Southeast Asian Flood in a flood plain of Tonle Sap Lake, Northwest Cambodia

“…Flat and vast area, with relatively fertile soil type in deepwater rice ecosystem in Cambodia (Nesbitt 1997), was suitable for large-scale lowland rice/floating rice production in rainy season, while storage of irrigation water for dry season rice was limited by this geomorphological nature. The conversion of cropping system from long duration floating rice production during rainy season to short duration rice production during dry season has been done in some part of deepwater rice ecosystems in tropical Asia, such as in Bangladesh and Thailand (Buddhaboon et al 2011;Catling et al 1983;Hossain et al 2004;Puckridge et al 2000). Dry season rice was also known to be cultivated in the floodplain of Mekong River in Cambodia where receding water was more easily stored and more readily available during dry season.…”

“…The difficulty was unpredictably happening big flood incidences, such as the one in 2011 that nullifies cultivation efforts. In some formerly deepwater rice growing area such as in Thailand and Bangladesh, planting pattern has been changed, in which deepwater rice stopped growing during deep flooding season, but instead short stature lowland rice was planted during dry season using the remaining water (Buddhaboon et al 2011;Catling et al 1983;Sommut et al 2004). The applicability and the magnitude of feasibility of this alternative option in the flood plain of Cambodia were not clarified.…”

Effect of genetic and climatic variability on the metabolic profiles of black gram (Vigna mungo L.) seeds and sprouts

“…The dry season in Thailand occurs between November and April, whereas the rainy season is between May and October. For the dry season crop, the only source of water was pumped from the river leading to the limitation of water for agricultural activity which can delay maturity of crops . Higher lipid contents in the seeds from the dry season could reflect more storage fat according to slower maturation stage than the samples from the rainy season.…”

“…For the dry season crop, the only source of water was pumped from the river leading to the limitation of water for agricultural activity which can delay maturity of crops. 34 Higher lipid contents in the seeds from the dry season could reflect more storage fat according to slower maturation stage than the samples from the rainy season. On the contrary, the sprouts produced from the intact seeds grown in the rainy season contained higher polar metabolites indicating higher catabolism activities in accordance with perfect maturity of the seeds by adequate water and moisture content.…”

Methodology to estimate rice genetic coefficients for the CSM-CERES-Rice model using GENCALC and GLUE genetic coefficient estimators

“…-Description of field experiment site: Latitude, longitude, elevation and slope as above -Weather data: Maximum and minimum temperature, precipitation and solar radiation on a daily basis -Soil data: Soil analysis by layer, bulk density, organic carbon, organic nitrogen, pH, phosphorus (P) and potassium (K) ( Table 1) Biomass sampling for growth measurement and dates of phenology development were collected throughout the growing season (Buddhaboon et al, 2011;Hoogenboom et al, 2013). A rice plant has three major developmental phases: vegetative phase, the reproductive phase and ripening phase (Department of Agriculture, 2004a).…”