Evaluating Performance of Sixteen Upland Rice Genotypes under Field Conditions for Further Breeding Process

Abstract

Rice is second most consumed cereal after wheat and it is considered as staple food in Thailand and most of the ASEAN countries. Analyzing yield performance of upland rice genotypes under field conditions is a key step in rice crop breeding program for improved rice production and ensuring food security. The objective of this research was to conduct a yield trial to assess performance of sixteen Thai upland rice genotypes under field conditions for further breeding process. Data from field trial that was conducted in 2016 in field research area

Synchronizing Nitrogen Fertilization and Planting Date to Improve Resource Use Efficiency, Productivity, and Profitability of Upland Rice

“…Our results indicate the impact of N fertilization and improvement in productivity with N fertilization according to various PDs. We have determined that the N fertilizer recommendations for upland rice production (DRRD, 2016 , 2017 ; Norsuwan et al, 2020 ) and N fertilizer application rate practiced in Thailand (CARSR, 2003 ; Hussain et al, 2018a , b ; Suwanasa et al, 2018 ; Islam et al, 2020 ) are not adequate. Another study conducted under partially controlled conditions in sheds also exhibited comparable results (Hussain et al, 2022 ).…”

“…In northern areas of Thailand, the application of 10–75 kg N ha −1 by farmers in upland rice fields was reported in a survey conducted by Chiang Mai University, Thailand (CARSR, 2003 ). Different NFRs have been observed as N fertilization of 61.25 kg N ha −1 (Suwanasa et al, 2018 ), 61.25 kg N ha −1 (Hussain et al, 2018a , b ), and a basal fertilization of 15 kg N ha −1 (Islam et al, 2020 ) in upland rice farming in southern Thailand. Corresponding to the Division of Rice Research and Development (DRRD) of Thailand (DRRD, 2016 ; Norsuwan et al, 2020 ), 48.75–82.5 kg N ha −1 based on soil N status was recommended to be used as N fertilization management for rice production.…”

“…Planting date affect rice productivity, as soil water status and environmental conditions differ over time. Upland rice is grown during the rainy season in Thailand (Hussain et al, 2018b ), and the rainy season lasts from May to October (Limsakul and Singhruck, 2016 ; Ullah et al, 2019 ). High variability prevails in the climate of Thailand, and most rain in the east of southern Thailand occurs from November to February of the subsequent year (Limsakul and Singhruck, 2016 ).…”

“…The yield potential of a cultivar depends on tillering that occurs at vegetative stages and panicle density that is achieved at panicle formation stages. Unsuitable planting dates and less precipitation at the reproductive stage of upland rice results in higher yield losses (Hussain et al, 2018b ). Planting photosensitive upland cultivars in southern Thailand (Watcharin et al, 2020 ) is another critical aspect affecting upland rice productivity.…”

Impacts of Drought Stress on Water Use Efficiency and Grain Productivity of Rice and Utilization of Genotypic Variability to Combat Climate Change

“…Rain-fed lowland rice production systems, which are a major production system in Thailand, are highly susceptible to climatic variability [5] and drought stress occurrence. Water shortages and drought stress occurrence have been forecasted in numerous studies to be severe due to the influence of climate change in the future, i.e., Ullah et al [6], El Sherbiny et al [7] and Hussain et al [8]. The occurrence of drought stress due to the impact of climate change affects the crop performance and production potential [9,10].…”