การศึกษาสายพันธุ์ข้าวเจ้าหอมไม่ไวต่อช่วงแสงที่มีรูปลักษณ์ใหม่

   Aromatic rice is highly demanded in the global market due to its unique fragrant quality. However, the existing constraints in cultivating aromatic rice in Thailand primarily relate to the low yield potential of current varieties. Thus, developing high-yielding aromatic rice presents a significant opportunity to increase market access and revenue for farmers. Furthermore, developing new varieties that align with the specific needs of both farmers and consumers in terms of cooking quality, physical grain characteristics, and desirable agronomic traits is crucial for adoption. To enhance the quality of aromatic rice, various new lines with unique characteristics are being developed. During this development process, it is essential to rigorously evaluate their expression of morphological traits, quality attributes, yield components, and overall grain yield. This study aimed to evaluate five newly developed, non-photoperiod sensitive aromatic rice lines (RJP-ARO-1, RJP-ARO-2, RJP-ARO-3, RJP-ARO-4, and RJP-ARO-5) and two standard check varieties (Pathum Thani 1 and RJ44). The experiment was conducted using a Completely Randomized Design (CRD). Data collected included key agronomic traits, yield components, and analysis of physical and chemical grain quality. The findings indicate that the non-photoperiod sensitive aromatic rice line RJP-ARO-5 exhibited the most favorable characteristics. This line is aromatic, has a short plant stature, upright leaves, a high number of filled grains per panicle, and several potential tillers capable of producing panicles. The grains are long and slender, and the physical and chemical properties of the milled rice are comparable to the standard check varieties. RJP-ARO-5 shows great potential for further development, expansion into diverse production areas, and subsequent promotion to farmers.