This study was conducted to analyze seasonal and annual variations in rice quality and factors affecting the quality, for quality evaluation of the brand rice varieties produced in Jeonnam region. Coefficient of variation (CV) values for the seasonal variation in the rice quality were 3.1% in Toyo value, 2.1% in whiteness, 1.6% in protein content, 1.0% in moisture content, and 0.4% in head rice ratio. Quality characteristics of the brand rice varieties generally showed a decreasing tendency after April, as the months progressed. CV values for the annual variation in the rice quality were relatively high at 5.6% in protein content and 5.2% in Toyo value whereas those for whiteness and head rice ratio were relatively low, at 2.7% and 1.8%, respectively. Palatability and protein content showed high correlations with minimum air temperature, sunshine hours, rainfall, and daily temperature range. Head rice ratio had a negative correlation with daily temperature range whereas chalky rice ratio had a positive correlation with rainfall. Based on these results, we formulated a multiple regression equation to estimate palatability of cooked rice using protein content, whiteness, head rice ratio, and moisture content as follows:y ＝－6.71a ＋ 2.27b ＋ 1.29c ＋ 0.51d － 15.34 (R2=0.51*)(y: palatability of cooked rice, a: protein content, b: moisture content, c: whiteness, d: head rice ratio).

나물용 녹두 신품종 '주현'은 금성녹두와 VC1834-4-B-2-B-3B-B를 인공교배하여 2009년에 육성되었다. '주현'의 생육습성은 직립, 잎 모양은 심장형, 백축색은 녹색, 성숙기에 꼬투리는 검고 곧으며, 종피는 광택이 없는 녹색이다. 개체당 협수는 26개로 표준품종인 '어울녹두'보다 8개 많고, 녹두나물 수율은 표준품종보다 18% 많다. '주현'은 바이러스, 갈색무늬병, 흰가루병 및 도복에 대한 포장저항성은 강하고, 평균수량은 1.84 MT/h

A new bright pink gladiolus “May Queen” was released by the National Horticultural Research Institute (NHRI) in 2004. A cross was made between early flowering pink cultivar “Calista” and early flowering white cultivar “White Friendship”. It was crossed in 1999 and finally selected in 2004 after investigation of the characteristics for 5 years from 2000 to 2004. “May Queen” has a bright pink color with white core as a cut flower. This cultivar is early flowering without stem bending. It has good production of cormels and resistant to Fusarium and Thrips. The width of “May Queen” flower is 11.0 cm. The plant height is 121 cm. Days to flowering of “May Queen” is average 92days in summer season.

This study was carried out to determine the effects on rice growth, yields and soil improvement under the different nitrogen levels in machine-transplanted rice after plowing at the fruiting stage of milk vetch. The fresh weight of milk vetch at plowing time was 20.95 ton/ha. In dry weight, T-N and C/N were 1.58%, 21.8%, respectively. Organic matter, total nitrogen and exchangeable calcium of soil after the experiment in the plot of milk vetch were higher than those before the experiment. Leaf area and dry weight of rice plants at heading date increased as nitrogen level increased. The number of panicle and spikelets per ~textrmm2 were not different except for the 110 kg/ha nitrogen level plot with milk vetch. Brown rice yield ranged from 5.45 to 6.08 ton/ha, in creasing with increased nitrogen level. So the yield increased by 1% at 77 kg/ha nitrogen level, 7% at 110 kg/ha nitrogen level plot with milk vetch compared with conventional level (rice straw 5.4 ton/ha and nitrogen 110 kg/ha).