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RISS 인기검색어
- 검색키워드
- 주제어 : weight-specific growth rate (검색결과 5 건)
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Quantitative Growth Analysis of White and Reddish Sword Bean
Hong Soo Doo,Sun Young Choi,Seung Kyoung Song,Jeom Ho Ryu 韓國作物學會 2001 Korean journal of crop science Vol.46 No.2
Sword bean belongs to the subgenus Canavalia in the genus Canavalia. White and reddish varieties in sword bean were tested to obtain the basic information for improving the yield, quality, and cultural environments through the quantitative growth analysis. Growing plants were sampled at intervals of 10 days from 20 days after sowing. Whole plant weight increased during the period of 11-20 days after sowing in both varieties. The weight of each organ between two varieties increased similarly except leaf area. Whole plant weight changed more close to pod weight than any other characters. The leaf areas of both varieties increased from 50 days after sowing, var. white displayed S type curved line but var. reddish displayed slow S type curved line. The SGR of whole plant weight in both varieties had 3 maxima and 2 minima, 3 maxima and first minimum were shown at the same period but the second minimum was shown at different period. Both varieties showed bimodal curved line. All SGR of each organ and leaf area were shown the 2 maxima and 1 minimum in both varieties. The changes of SLA and LAR were not remarkable between two varieties but these were united together with the maximum of whole plant weight and root weight. ULWR and ULWR were shown similar in both varieties. Reddish variety was more prosperous in early growth stage than white variety because SLA, LAR and LWR were high. In surplus weight, both varieties increased rapidly during the period of 111-120 days after sowing that was applicable to the maximum SGR of pod weight. Surplus weight of var. white increased markedly during the same period comparing those of var. reddish.
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Quantitative Growth Analysis of White and Reddish Sword Bean
Park, Sun-Young,Doo, Hong-Soo,Song, Seung-Kyoung,Ryu, Jeom-Ho The Korean Society of Crop Science 2001 Korean journal of crop science Vol.46 No.2
Sword bean belongs to the subgenus Canavalia in the genus Canavalia. White and reddish varieties in sword bean were tested to obtain the basic information for improving the yield, quality, and cultural environments through the quantitative growth analysis. Growing plants were sampled at intervals of 10 days from 20 days after sowing. Whole plant weight increased during the period of 11-20 days after sowing in both varieties. The weight of each organ between two varieties increased similarly except leaf area. Whole plant weight changed more close to pod weight than any other characters. The leaf areas of both varieties increased from 50 days after sowing, var. white displayed S type curved line but var. reddish displayed slow S type curved line. The SGR of whole plant weight in both varieties had 3 maxima and 2 minima, 3 maxima and first minimum were shown at the same period but the second minimum was shown at different period. Both varieties showed bimodal curved line. All SGR of each organ and leaf area were shown the 2 maxima and 1 minimum in both varieties. The changes of SLA and LAR were not remarkable between two varieties but these were united together with the maximum of whole plant weight and root weight. ULWR and ULWR were shown similar in both varieties. Reddish variety was more prosperous in early growth stage than white variety because SLA, LAR and LWR were high. In surplus weight, both varieties increased rapidly during the period of 111-120 days after sowing that was applicable to the maximum SGR of pod weight. Surplus weight of var. white increased markedly during the same period comparing those of var. reddish.
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강형구,이창래,최근형 한국해양과학기술원 2011 Ocean science journal Vol.46 No.3
The egg production rate (EPR) of Calanus sinicus was measured from March 2007 to April 2010 at three stations along the Korean coast of the Yellow Sea (in coastal waters off Saemangum, Yeongheungdo, and Asan Bay) to estimate in situ maximum egg production rate (MEPR) and to understand whether the females were limited in their growth or fecundity in the field. The mean EPR of C. sinicus at each sampling date ranged from 10.3-34.9 eggs female^(-1) d^(-1) (mean 23.4 eggs female^(-1) d^(-1)), and the EPR of individual copepods ranged from 0-81 eggs female^(-1) d^(-1). The mean EPR was positively correlated with the body weight of female copepods. The MEPR at each sampling date ranged from 40-81 eggs female^(-1) d^(-1) (mean 50.4eggs female^(-1) d^(-1)). Over 84% of eggs spawned hatched successfully. The weight-specific growth rate (WSGR) ranged from 0.038-0.111 d^(-1) (mean 0.082 d^(-1)), indicating that 3.8-11.1% of the carbon in an adult female was produced daily as female growth. The WSGR was negatively correlated with water temperature. The ratio of mean EPR to observed mean MEPR ranged from 20-70% (mean 46%), indicating that ~54% of a female’s growth might be limited in the field. We suggest that the ratio of observed EPR to mean MEPR of copepod can be applied to understand how the copepod responds to environmental changes, as well as EPR and hatching success.
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Growth Analysis between Determinate and Indeterminate Growth Types in Sesame
Hong Soo Doo,Myung Kyu Oh,Ki Hun Park,Duck Yong Suh,Jeom Ho Ryu 한국육종학회 2003 한국육종학회지 Vol.35 No.2
Growth analysis was conducted with three diff erent growth types of sesame to compare the growth characteristics among types and to obtain the basic information for breeding high yielding sesame. Dif ferent growth types showed dif ferent rate of inrease i
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마늘분말 첨가 사료가 황복, Takifugu obscurus의 성장 및 사료 이용성에 미치는 영향
이동훈(Dong-Hoon LEE) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.1
It takes about 2 to 3 years to raise river puffer (Takifugu obscurus) to selling size of 300g, so it is necessary to develop aquaculture management methods and special feeds that can shorten this. This study was carried out to investigate the supplemental effects of dietary garlic powder (GP) on growth and feed utilization of river puffer fish (averaging weight, 207g) for 9 weeks (60 days). 180 fish were randomly distributed to each of 6 tanks (30 fish/tank) under a RAS (recirculating aquaculture system). The GP of 1.5% (GP1.5) and 2.5% (GP2.5) was added to the control diet (GP0) containing 58% protein and 8% lipid. After the feeding trial, weight gain (WG), feed efficiency (FE), protein efficiency ratio (PER) and specific growth rate (SGR) of fish fed GP1.5 were significantly higher (P<0.05) than those of fish fed GP0 and GP2.5. There was no significant difference in condition factor (CF) and survival rate (SR) among three experimental groups (P>0.05). Second order polynomial regression model analysis relation on the basis of WG and SGR indicated that the dietary optimal GP level could be 1.12% for river puffer fish ranging 200 g to 250 g. The present study suggested that dietary GP for river puffer fish could positively affect growth performance.
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