Evaluation and Comparative Analysis of Meteorological Data, Moisture Content, and Rice Panicle Threshability

Abstract

Harvesting and threshing are crucial processes that influence the quantity, quality, and economic efficiency of rice production. Therefore, the threshability of rice varieties is an important agronomic trait for breeding programs. However, selection for threshability is hardly standardized. With the application of an improved threshing meter, the threshability of four local temperate japonica rice varieties was determined during the ripening phase (DAF 37–60) in three consecutive years. Panicle threshing force (TF in N) was measured parallel with seed moisture content (MC) to describe differences in ripening habits of the genotypes. Shapes of the separation pilei were observed and the relationship with the different types of grain shattering was found. The different threshability patterns of the genotypes were found as quite stable along these periods. Moreover, correlation among TF, MC, and 5-day averages of meteorological parameters during the ripening phase was determined. Precipitation, Tmean, Tmax, and relative humidity had a significant influence on the MC. Based on our results, the MC had a low but significant positive correlation with the TF (0.312 *).

Strategies for Reducing Arsenic Content in Rice: A review

“…No significant differences were recognized among the varieties in aerobic conditions. In one case, however, we found a significant difference between two tested varieties ('M 488' and 'Nembo') in flooded conditions on soil treated with Humin Power G soil conditioner (SZALÓKI et al, 2022).…”

“…In our previous greenhouse pot experiment, the As concentration of the above-ground biomass was significantly higher in flooded than in aerobic conditions, as Figure 1. shows (SZALÓKI et al, 2022).…”

The Reaction of Rice Growth to the Arsenic Contamination under Various Irrigation Methods

“…In our previous study, we examined the As content of shoots of four rice varieties in different irrigation systems (flooded and aerobic). No significant differences were found among the varieties in aerobic conditions [33].…”

“…We found that the As concentration of the straw was significantly higher with flooded irrigation than with aerobic irrigation. However, due to the relatively low As concentration in the soil (10.6 mg kg −1 ), no phytotoxic effects on the plants were observed [33]. Several researchers have also reported that aerobic water management practices significantly decreased the total As concentration of rice straw as well as grain compared to anaerobic systems [32,[49][50][51].…”

Evolution of Compounds and Characteristics of Crops during Ripening and after Harvest

“…In the first article, Szalóki et al [21] determined the threshability of four local temperate japonica rice varieties during the ripening phase over three consecutive years with the application of an improved threshing meter. In this context, harvesting and threshing are crucial processes that influence the quality, quantity, and economic efficiency of rice production.…”