This study was conducted to characterize quality of the soybean seed harvested in 1989, 1990 and 1991 each and stored in the refrigerator. Storage time did not affect the phytate and total sugar content, whereas longer storage reduced nitrogen solubility index (NSI). There was no difference in amylogram viscosity characteristics of soybean seeds harvested in 1989 and 1990, which was lower than those in 1991. The production yield of soybean sprout and total sprouting rate of soybean seeds harvested in 1989 were 334.8% and 57.4%, respectively, which were lower than those in 1990 and 1991.
Kim, Hong-Sik;Lee, Suk-Ha;Park, Keum-Yong;Lee, Yeong-Ho
KOREAN JOURNAL OF CROP SCIENCE
/
v.45
no.4
/
pp.227-231
/
2000
Small seed size is one of the major traits of soybean cultivars for sprouts with regard to high sprout yield. This study was conducted to identify quantitative trait loci (QTL) for seed size and weight in a set of F 6 seeds of 89 lines derived from a cross between 'Pureunkong', a soybean cultivar developed for sprouts and 'Jinpumkong 2', a soybean cultivar with no beany taste in seed due to the lack of lipoxygenases. The genetic map of 25 linkage groups with a total of 98 markers including RFLP, RAPD, SSR and classical markers was constructed from this F/sbu 5/-derived population and was used for QTL analysis. 'Pureunkong' was significantly smaller (P<0.01) than 'Jinpumkong 2' in seed size and seed weight. Genetic variation was detected and transgressive segregation was common in the population for these traits. Seven DNA markers including opT14-1600 in LG A2, opF02-400 in LG B2, Satt100, opC09-700, opG04-730 and opQll-650 in LG C2, and opY07-1100 & 1000 in LG(unknown) were significantly associated and accounted for 4.7 to 10.9% and 5.1 to 10.1 % of the phenotypic variation in seed size and seed weight, respectively. 'Pureunkong' alleles increased seed size and seed weight at the all four significant marker loci on the LG C2. These marker loci in LG C2 were closely linked and were presumed to be a single QTL. Overall, at least three independent QTLs from 3 linkage groups (A2, B2, and C2) were putatively involved in the control of seed size and seed weight.
Kim, Dong-Kwan;Lee, Ya-Seong;Jung, Byung-Joon;Son, Dong-Mo;Moon, Jung-Kyung;Oh, Young-Jin;Kim, Jung-Bong;Kim, Kyong-Ho
Korean Journal of Breeding Science
/
v.40
no.4
/
pp.507-511
/
2008
A new mungbean cultivar "Sohyeon" (Vigna radiata (L.) Wilczek) was bred from the cross between "Suwon28" and "KM94004" at the Jeollanamdo Agricultural Research & Extension Services (JARES) in 2006. "Sohyeon" has erect type, heart shape leaflet, green hypocotyl, black and straight pod when matured, and dull green seed surface. This new cultivar shows 42 g per a thousand seed weight. And sprout yield was up to 9% more than that of comparison cultivar "Owool". It contains 12.0, 12.4 mg/g of vitexin and isovitexin, respectively, which was shown about 38, 31% more than comparison cultivar. It shows resistance to mungbean mottle virus, cercospora leaf spot, and powdery mildew in the normal cultivate condition. The average yield of this cultivar shows 1.62 ton/ha, which was 7% more than comparison cultivar.
Appropriate soil temperature and early planting of potato is very important for the successful potato-soybean cropping system in central region of South Korea. This experiment was carried out to determine the effect of mulching materials on the growth and yield of potato (Solanum tuberosum L.). Five different mulch treatments were had been applied on an upland soil as follows ; no mulch (NM), transparent film (TF), transparent film + additional transparent film (TF + ATF), black film (BF), and black film + additional transparent film (ATF). In the period of sowing time to removing additional films, mean soil temperature of the treatments was in the order of TF+ATF > TF > BR+ATF > BF as $20.3^{\circ}C$ > $18.5^{\circ}C$ > $16.1^{\circ}C$ > $15.4^{\circ}C$, respectively and that of NM was $13.8^{\circ}C$. The accumulated soil temperature was TF > NM > BF during the removing additional films to earthing at inter-tillage. On the changes in the soil temperature during a whole day, the temperature in the BF was lower than NM during around 18:00 PM to 12:00 NM, while NM was higher than BF in the time period of 10:00AM to 21:00PM. The sequence of potato sprout emergence was 15 > 18 > 20 > 22 days of TF+ATF, TF, BF+ATF, and BF, respectively and that of NM was 24 days. Comparing to the NM, potato sprout emergence was observed on the TF+ATF treated plot as early as 9 days. At 10 days before harvest, the significant difference in the tuber dry weight had been observed and the sequence tuber weight was in the order of TF > TF+ATF > BF+ATF > BF > NM. The potato yields of TF, TF+ATF, and BF+ATF were increased of 40.7, 37.3, and 22% as compared to NM ($2,805kg\;10a^{-1}$), but almost same yield in the BF. The differences of tuber dry weight and potato yields was co-related with the temperature rise of soil by the application of mulching materials on soil. Based on these results, application of mulching film had been very effective to increase the tuber size and the yield of potato by the temperature rise during seedling stage of potato. Transparent mulching was better than black mulching especially for the emergence of sprout of potato in relation to minimizing cooling injury.
Im, Ju Sung;Cho, Ji Hong;Cho, Kwang Soo;Chang, Dong Chil;Jin, Yong Ik;Yu, Hong Seob;Lee, Jong Nam
Korean Journal of Environmental Agriculture
/
v.35
no.3
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pp.202-210
/
2016
BACKGROUND: This study was conducted to determine effects of ridging systems and plastic film mulch types on growth, yield, and profitability of potato (Solanum tuberosum L.) in spring cropping using paddy field and to suggest profitable ridging system and plastic mulch type.METHODS AND RESULTS: Two potato cultivars ('Goun', and 'Atlantic') were grown at paddy field located in Gangneung in spring. For treatments, ridging systems were one-row ridge (OR) and two-row ridge (TR). Mulch types were no-mulch (NM), black plastic film mulch (BPM), and transparent plastic film mulch (TPM). Emergence of sprout was affected by the mulch types and the fastest level was shown at TPM treatment. Accumulative soil temperature during sprouting was 16.2℃ higher at TR than at OR and also higher at TPM than at BPM or NM. Stem length was not affected by ridging systems or mulch types. Leaf area index (LAI) was influenced by mulch types, while not by ridging systems. The highest LAI was shown at TR with TPM and OR of BPM. There was no significant difference in specific gravity or dry matter rate by ridging systems and mulch types. Tuber yield was significantly influenced by ridging systems and mulch types. Mean tuber weight was heavier at OR treatment than at TR and also the heaviest at TPM among mulch types. The highest marketable yield was found at OR with BPM. Based on marketable tuber yield and market price, the highest income ratio in two cultivars was found at OR with BPM and it was 20~82% higher than the ratio at TR with TPM.CONCLUSION: In spring potato cropping using paddy field, OR with BPM is better for high yield and is more profitable for farmer's income than the conventional cultivation method, TR with TPM.
To determine the effects of mulching with the hulls of rice on the growth of the ginseng plant and changes of its growing environment-soil moisture content. subterranccan temperature and soil hardness- were investigated under different light intensity such as 5%, 10%, 20%, and 30% light transmittance rate(LTR). The results obtained were as follows; 1. Soil moisture content under the shading was decreased as the increase of light intensity, whereas it was increased about 1.5% in each plot of LTR by the mulching. 2. Suberranccan temperature under the shading was increased as the increase of light intensity. It was decreased on a hot day by the mulching but increased on a cold day. 3. Soil hardness was decreased by the mulching. 4. Sprouting date of the ginseng plants was acclerated for 7 days and sprout periods were shortened for f days by mulching compared to the non-mulching treatment. 5. Missing plant rate was increased severely as the increase of light intensity more Than 20% LTR In the non-mulching plots but did not severe in the mulching plots. Missing plant rate was decreased remarkably by the mulching. The degree of decrease was larger as the increase 6f light intensity. 6. Root yield was increased in the mulching plots compared to the non$.$mulching plots. The degree of increase was larger as the increase of light intensity. The highest yield was obtained at 20% LTR with mulching.
Kim, Dong-Kwan;Choi, Jin-Gyung;Lee, Ya-Seong;Son, Dong-Mo;Moon, Jung-Kyung;Oh, Young-Jin;Kim, Kyong-Ho
Korean Journal of Breeding Science
/
v.41
no.1
/
pp.36-39
/
2009
A new mungbean cultivar "Dahyeon" (Vigna radiata (L.) Wilczek) was derived from the cross between Jeonnam11 and AV-1-3-34-204 at National Institute Crop Science (NICS) and Jeollanamdo Agricultural Research & Extension Services (JARES) in 2006. "ahyeon" has erect growth habit, heart leaflet, green hypocotyl, black and straight pod when matured, and dull green seed surface. The pods number per plant was 21.0, which was 4.0 more than check cultivar "wool" The plant height and thousand seed weight were 57cm and 48 g respectively. The sprout yield was up to 5% more than that of the check cultivar. It was field resistance to mungbean mottle virus, cercospora leaf spot, and powdery mildew. The average yield was 1.90 ton/ha, which was 17% more than the check cultivar.
Kim, Dong-Kwan;Lee, Ya-Seong;Jung, Byung-Joon;Son, Dong-Mo;Moon, Jung-Kyung;Oh, Young-Jin;Kim, Kyong-Ho
Korean Journal of Breeding Science
/
v.40
no.4
/
pp.456-460
/
2008
A new mungbean cultivar Daseon (Vigna radiata (L.) Wilczek) was derived from the cross between KM9003-2B-783 and Keumseong at the Jeollanamdo Agricultural Research & Extension Services (JARES) in 2006. Daseon has erect growth habit, heart leaflet, greenish purple hypocotyl, black and straight pod when matured, and dull green seed surface. A thousand seed weight was 52 g, sprout yield ratio was 630%, and the anthocyanin (delphinidin 3-glucoside) of fresh sprouts contained 1.7 ug/g. The average plant height was 2 cm shorter than the check cultivar (Owool). It is field resistance to mungbean mottle virus, cercospora leaf spot, and powdery mildew. The average yield was 1.76 ton/ha, which was 21% more than check cultivar.
Proceedings of the Plant Resources Society of Korea Conference
/
2019.10a
/
pp.76-76
/
2019
The purpose of this study was to evaluate the antioxidant and whitening action of Fagopyrum esculentum and F. tataricum buckwheat seeds depending on their germination time. In a previous study, we reported significant changes in sprout yield and phytochemical content in ethanol extracts from F. esculentum and F. tataricum seeds with increase in germination times. DPPH radical scavenging activities of F. tataricum increased with increasing germination time, whereas that of F. esculentum decreased. Next, we investigated anti-melanogenic activities of these species by estimation of melanin content and tyrosinase activity. Inhibition of melanin production in ${\alpha}-MSH$ (${\alpha}$-melanocyte stimulating hormone)-induced B16F10 cells by extracts from these seeds were analyzed. Among the two, F. tataricum extracts were characterized by higher inhibitory activity against melanin production. In addition, when B16F10 cells were incubated with L-DOPA for detection of in situ tyrosinase activity, F. tataricum and F. esculentum extracts were observed to reduce melanin production in cells. Taken together, these results indicate that extracts from buckwheat seeds could influence cellular processes via modulation of tyrosinase activity. Hence, buckwheat seeds could be utilized as whitening agents in the cosmetic industries and as therapeutics for hyperpigmentation disorders in a clinical setting.
To find out the most effective method of treatments for the induction of sprouting of dormant seed potato pieces for the fall crop production of Irish cobbler, this experiment was carried out with sprout inducing bed and field performance trial. In GA treatments, about 10 days were required to sprout and resulted uniform and thin 3-4 sprouts per tuber piece, but sprouts were slender and rooting was not observed. In Ethrel treatments, 20-25 days were required, and sprouts were inferior than that of GA treatment in uniformity of sprouting, and percentage of rotten pieces and of healthy sprouted tuber pieces, but number of sprouts per tuber pieces was low, being 1-2, and sprouts were short, thick, and healthy, and showed good rooting. In GA and Ethrel mixture treatments, 1-2 more days were required to sprout than GA treatments, but sprouts were relatively healthy, and other sprouting pattern were like that of GA treatments. In Ethylene chlorohydrin and 6-Benzyl-adenine treatments, sprouting was like that of Ethrel treatments, but much more days were required than Ethrel treatments and tendency of severe rotting was observed. Optimum treating methods of promising chemicals found to be 1-2 and 2-5 ppm GA solution, 500 and 1000-2000 ppm Ethrel solution, and 1-2+250-500 and 5+250-500 ppm GA and Ethrel mixture solution for 60 min. treatment of tuber piece and whole-tuber, respectively. Induction of sprouting in dry and hot time resulted severer rotting of tuber pieces during the induction of sprouting and with the advancement of dormancy, being delayed in date of treatment, tendency of promotion of sprouting and rooting was observed. When sprouted tuber piece was transplanted at the same date, yields were in order of Ethrel, GA and Ethrel mixture, and GA treatment, indicating the correlation between yield and healthiness of sprout and rooting status of sprouted tuber piece. In all treatments, earlier transplanting resulted higher yields.
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