The study was conducted to evaluate the performance of the popular isoflavone-rich soybean 'agakong' in upland and in drained-paddy fields. Analysis revealed no significant variation in terms of plant height, number of seeds per pod, number of nodes, and 100-seed weight between the two cropping system. Number of pods was significantly higher in paddy field(234.2kg 10a-1) compared to those harvested in the upland field, which was later manifested on the yield where paddy soybeans obtained 278.1kg 10a-1 whereas upland only obtained 179.3kg 10a-1. This observed difference in yield was attributed to the observed higher amount of N in the paddy soil (0.907%) as compared to the upland soil (0.458%). In terms of nutritional content, protein and phytic acid contents were the only parameters that showed significant differences while oil, sugar, reducing power and fatty acids were all comparable in paddy and filed condition. Protein content was higher in upland soil (47.4%) than that of the paddy (44.9%) soil. On the opposite, phytic acid was higher in paddy (2.90%) than in upland (1.09%). This study showed that the yield of soybean is generally a factor of soil N, drained-paddy field production of soybean is comparable to upland-filed production with the benefit of increasing phytic acid content while maintaining its nutritional value.

This study was conducted in 2002 and 2003 to investigate variation on rice quality associated with cooking, and eating qualities under the three different fertilizer levels, none fertilizer level(N-P2O5-K2O=0-0-0kg/ha ), ordinary fertilizer level(N-P2O5-K2O=1l0-45-57kg/ha ), and heavy fertilizer level(N-P2O5-K2O=180-90-110kg/ha ). The eight resistant near-isogenic lines(NILs) for bacterial blight in rice were examined for grain appearances, several physicochemical properties, and palatability value measured by Toyo taste meter. Significant variations in NILs(V), Years(Y), and VxY interaction were recognized in grain length and palatability value under the none fertilizer cultivation, in grain width under the heavy fertilizer cultivation, and in white belly ratio under the three different fertilizer cultivations, respectively. According to increase the fertilizer application rate, variation in grain length and grain width were not significant, but grain thickness was thinner under the ordinary and heavy fertilizer cultivations than under the none fertilizer cultivation. On the other hand, white belly ratio, protein content and Mg/K ratio increased, while amylose content and palatability value lowered. Alkali spreading value lowed under the heavy fertilizer cultivation than under the none and ordinary fertilizer cultivations. Palatability value was significantly low in the line carrying XalJ than in the other lines under the ordinary fertilizer cultivations.

The effect of biofertilizer (compound of microbial inoculants or groups of micro-organisms) on growth and yield of rice was investigated. The experiment was carried out in a randomized complete block design with 3 replications and 7 treatments namely: RF=N-P2O5-K2O (11-5.5-4.8 kg 10a-1 ); half of the recommended fertilizer rate, HRF=N-P2O5-K2O (5.5-2.75-2.4 kg 10a-1 ); HRF+Bio 250=HRF combined with 250 kg biofertilizer 10a-1 ; HRF+Bio 500=HRF combined with 500 kg biofertilizer 10a-1 ; Bio 250=250 kg biofertilizer 10a-1 ; Bio 500=500 kg biofertilizer 10a-1 ; and NF = No Fertilizer. Results showed that the recorded values of plant height, tiller number and chlorophyll content at 40 to 60 days after transplanting (DAT) in HRF+Bio 500 were significantly higher than those recorded in the RF treatment. Similar observations between these two treatments were only recorded from 60 DAT onwards. Yield components were also superior in HRF+Bio 500 treatment and comparable to that of RF. The highest grain yield obtained in HRF+Bio 500 treatment (785.8 kg 10a-1 ) was statistically similar to that of RF (739.8 kg 10a-1 ) but significantly higher than that of NF (506.7 kg 10a-1 ). Finally, head grain recovery (90.9) was low while chalkiness (0.03) was high at HRF+Bio 500 treatment as compared with RF, which were (96.1) and (0.3), respectively. Results showed that combined treatment of HRF and 500 kg biofertilizer 10a-1 has similar effects on the growth and yield of rice with that of RF.

In this study, the PHYTO-PAM-fluorometric method was used to evaluate the ETRmax in terms of sensitivity to DIN/DIP against 14 microalgae: Prorocentrum micans, Heterocapsa triquetra, Gymnodinium impudicum, Gymnodinium catenatum, Amphidinium caterae, Chlorella vulgaris, Chroococcus minutus, Microcystis aeruginosa, Chlorella ellipsoidea, Nannochloris oculata, Oocystis lacustris, Chroomonas salina, Gloeocystis gigas, and Prymnessium parvum. We found that P. micans, H. triquetra, and A. caterae exposed to the maximum level of DIN/DIP were significantly smaller in the ETRmax than that of the minimum and moderate mixture. Unlikely the ETRmax, the initial slope alpha was not significantly different at the level of 60 DIN/DIP. In G. catenatum, the moderate levels of 15 and 20 in DIN/DIP were found to be significantly different from the ETRmax at Ch1-Ch4. Gymnodinium impudicum had a higher value than that of the ETRmax than that of dinoflagellates used in this study, ranging from 306.1 (Ch4, DIN/DIP: 10) to 520.1 (Ch4, DIN/DIP: 30). The ETRmax value obtained from other microalgae was similar to G. impudicum at any of the ratios of DIN/DIP and channels. Consequently, the influence of offshore water current assures us of the suppression of photosynthesis and electron transport rate in dinoflagellates. Gymnodinium impudicum has not been researched in the area of red tides in Korea, but it will be enough to creat the massive algal blooms in the future because of higher potential photochemical availability.

A new oat (Avena sativa L.) cultivar 'Darkhorse' was developed by Honam Agricultural Research Institute (HARI) m2005. It was released because ofits earlmess, high forage yield potential and adaptability for late summer sowing. It was devel-oped from the a

A new oat (Avena sativa L.) cultivar, "Highspeed" was developed by Honam Agricultural Research Institute (HARI) in2005. It was released because of its earliness, high forage yield potential, and good adaptability for late summer sowing. "High-speed" was s

A population ofrecombinant inbred lines derived from a cross between Ilpumbyeo, a blast-susceptibleyopowca cultivarofhigh eating-quality and high yield potential, and GL33, a blast-resistance/apowca weedy rice was used to identifv QTLs affect-ing importan

With 3 diferent recurrent parents (RPs) (‘Suwon 345’, ‘Iri 390’ and ‘Milyang 95’) and 3 diferent donor parents (‘Dae-cheongbyeo’, ‘RantaiEmas’ and ‘Chugoku 69’ for Xa1, Xa2 and Xa3, respectively), 9 near isogenic lines (NILs) were developedand subjected t

A six-rowed naked barley cultivar, Donghanchal (Hordeum vulgare L.), with low-amylose, winter hardiness, viral disease resistance and good quality, was developed from the cross between the advanced line “Masangwamac/Kangbori*7” and Naehanssalbori in 1993.