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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
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AGRONOMIC PERFORMANCE OF THE F1, F2 AND F3 GENERATIONS OF RICE CROSSES Taiwan Agricultural Research Institute
W.L. Chang; E.H. Lin; 張萬來; 林恩輝.
[[abstract]]The performance of grain yield, days to heading, plant height, and number of panicles per hill was evaluated in the F1, F2 and F3 generations of early maturing japonica, indica, and late maturing japonica crosses at the Chiayi Agricultural Experiment Station over the 3-crop period from the second crop of 1970 to the second crop of 1971. The mean F1 yield of all 21 crosses was 6.7, 12.9, and 19.2% greater than the higher parent, mid-parent and check variety, respectively. The F2 yield, relative to the higher parent, mid-parent, and check variety was 95.6, 101.4, and 111.9%, respectively. The average percentage of decrease of heterosis for grain yield from F1 to F2 was 6.4%. The mean F3 yield of 10 late maturing japonica crosses was 93.4, 99.0...
Palavras-chave: [[classification]]14.
Ano: 1972
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MANIFESTATION OF HYBRID VIGOR IN RICE Taiwan Agricultural Research Institute
W.L. Chang; E.H. Lin; C.N. Yang; 張萬來; 林恩輝; 楊建南.
[[abstract]]The manifestation of heterosis for grain yield, yield components and several important agronomic characters by a group of 265 F1 hybrids of rice over a six-crop period from the second crop of 1967 to the first crop of 1970 are reported. Among 265 F1 hybrids evaluated, a total of 192 or 72.5% of the total hybrids outyielded their mid-parent and check varieties while grain yield of 145 or 54.7% of the hybrids exceeded their respective high-parent. The average heterosis for these outstanding F1 hybrids was 20.3, 19.1 and 18.3% in relation to mid-parent, check varieties and high-parent, respectively. However, the magnitude of hybrid advantage over the mid-parent and check varieties reduced to 10.6 and 6.3% respectively when the average data of the...
Palavras-chave: [[classification]]14.
Ano: 1971
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Performance of Vegetatively Propagated F1 Plants in Rice Taiwan Agricultural Research Institute
W.L. Chang; S.T. Chen; E.H. Lin; 張萬來; 陳瑞庭; 林恩輝.
[[abstract]]The performance of three vegatatively propoageted F1 hybrid crosses of rice evaluated at the Chiayi Agricultural Experiment Staion in the first and second corps of 1970 are reported. More than 70% of cuttings taken from F1 stubbles germinated in the first crop but less than 7% of them germinated in the second crop. However, more than 90% of replanted tillers at the tillering stage survived in both crops. The growth of F1 plants raised form rice cuttings appeared normal in both crops. In early maturing jqponica group, F1 plants from cuttings were found to grow better than those grown from seeds but F1 plants from cuttings of indica cross headed too early to attain their full growth in the first crop. F1 plants developed by division method were...
Palavras-chave: [[classification]]14.
Ano: 1971
Registros recuperados: 3
Primeira ... 1 ... Última
 

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