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우리나라에서의 임목육종에 (林木育種) 의한 생산성 증가
류장발,심상영 ( Jang Bal Ryu,Sang Yung Shim ) 한국산림과학회 1988 한국산림과학회지 Vol.77 No.4
Improvement of productivity by forest tree breeding work in Korea was estimated for a few important tree species. Progenies of 17 plus trees of red pine (Pines densiflora) outgrew by 57 percentage compared with progenies of unselected trees at age 15. If best three families are selected among the 17, more than double in volume grow-th is expected. The hybrid Pinus rigida × P. taeda showed more than double volume growth compare to P. rigida at a southern plantation at age 15. However, the superiority of the hybrid decreased at northern plantations, mainly because of low coldhardiness of the hybrid. At a northern plantation, the hybrid grew less than the P. rigida on upper hill, while the hybrid grew much better than the P. rigida on flat area. Another hybrid Populus alba × P. glandulosa grew faster than both parents by two to two and half times according to planting sites at age 10. Introduction of Pinus rigida also showed increased volume growth. Volume increase by selection of best five provenances among 45 at age 12 was estimated as 53 percent compare to progenies of plus trees in Korea, Additional 19 percent of volume increase was expected by selection of the best families within the best provenances. Annual production of chestnuts reached about 70,000 M/T by planting resistant clones to chestnut gall wasp (Dryocosmus kuriphilus), which killed almost all susceptible trees. Although polyploid trees and mutants have been produced by colchicine treatments in over 10 tree species, none of them is economically important Remarkable improvement of productivity is expected by biotechnology in future through selection, hybridization, introduction of foreign genes at cell, cell organelle and gene level, and gene transformation. At present, mass propagation of superior planting materials by tissue culture will increase the productivity.
동위효소분석에 의한 테다소나무 ( Pinus taeda L . ) 클론의 식별
류장발,나천수 ( Jang Bak Ryu,Chun Soo Na ) 한국산림과학회 1987 한국산림과학회지 Vol.76 No.4
Megagametophyte tissues from seeds of 45 loblolly pine clones were subjected to horizontal starch-gel electrophoresis. The resulting gels were tested for activity of five enzyme systems (GOT, SDH, PGM, MDH, and AP). Isozymes observed were under control of 11 loci. All 45 clones could be identified with unique genotypes at above 10 loci.
포플러류의 식물체와 미토콘드리아의 동위효소 분석에 의한 몇 동위효소의 세포소기관적 (細胞小器管的) 위치
류장발,노은운,손두식 ( Jang Bal Ryu,Eun Woon Noh,Doo Sik Son ) 한국산림과학회 1991 한국산림과학회지 Vol.80 No.1
Subcellular location of five isozymes in Populus species was studied by isozyme analysis with plant and mitochondria. Isozymes analyzed were ADH, 6-PGD, MDH, PGI, and Diaptrorase. ADH seems to be cytosolic isozyme encoded with nuclear genes at one locus, while 6-PGD seems to be mitochondrial one. MDH showed three hands in cytosol and four other bands in mitochondria. Three cytosolic hands were showed for PGI. Diaphorase showed one mitochodrial band and two cytosofic bands which seemed to the encoded by nuclear genes at one locus.
잡종채종원(雜種採種園) 조성을 위한 조기개화(早期開花) 리기다소나무의 선발
류장발,장대경 한국임학회 1984 한국산림과학회지 Vol.65 No.1
리기테다소나무 雜種種子를 풍매에 의하여 生産할 수 있는 雜種採種園을 만들 리기다소나무를 選拔하기 위하여, 美國과 카나다의 45개 産地 200여 가계의 種子를 도입하여 造成한 山地試驗林에서 '83, '84 이년간 약 3,000本의 開花調査를 하였다. 암꽃의 開花日과 花粉 비산일은 모두 産地와 가계간에 차이가 있었으며 북쪽 産地의 나무가 빨랐고, 開花日에 대한 협의의 유전력은 0.5內外로 비교적 높았다. 二年間의 觀察을 토대로 早期開花 리기다소나무 277本을 選拔하였다. 이 選拔集團의 開花平均日은 母集團 開花平均日보다 약 2일 빨랐다. 리기다소나무와 테다소나무의 開花日 차이 6일을 극복하기 위한 방안을 검토하였다.