As compared with radiation at normal temperature, radiation at -1.96℃ induced less mutations of leaf colours, heading date and plant height, while seed-setting percentages were higher.
Mutation frequencies of leaf colours, heading date and plant height were higher when seeds were irradiated at normal temperature and then post-treated with caffeine.
Pass to study the effect that cultivated density on rice growth and yield, the result showed that: as cultivated density diminish, ex-period the growth measure varied small, middle-later period increased obviously, dominate tillering period and height tillering period postponed, and leaf colours varied steady on the whole growth period, rice yield increased.
This paper introduced the define and type of plant with changing leaf colours,and concluded as well as illustrated the ordinary garden application mode of plant with changing leaf colours according to the garden design practice.
Dry rice seeds of early Hsien rice variety Guangluai No. 4 were irradiated with gamma-rays at - 196℃ and then subjected to post-treatment with caffeine at a concentration of 5.6×10-3M. Radiation-induced injuries in M1 generation and mutations of leaf colours, plant height and heading date in M2 generation were observed. As compared with radiation at normal temperature, radiation at -1.96℃ induced less mutations of leaf colours, heading date and plant height, while seed-setting percen...
This paper introduced the define and type of plant with changing leaf colours,and concluded as well as illustrated the ordinary garden application mode of plant with changing leaf colours according to the garden design practice.
Pass to study the effect that cultivated density on rice growth and yield, the result showed that: as cultivated density diminish, ex-period the growth measure varied small, middle-later period increased obviously, dominate tillering period and height tillering period postponed, and leaf colours varied steady on the whole growth period, rice yield increased. Optimum cultivated density is 30 cm × 20 cm, per cave plant 3, its yield is 725.2 kg/667 m2.