Low resistant clones enrich merely about 0. 357.Analysis of tea leaf color and chlorophyll a/b indicates light-colored tea blades and little ratio of chlorophyll a/b is characteristics of high resistance.
5. The chlorophyll content, senescence index and the leaf color were surveyed. The results showed that the chlorophyll content and the senescence index of SH881 which contained PPFl, shortened as SH881-PPF1, was higher than SH881. While the SH881-PPF1's leaf color was darker than the control plant. It showed that the PPF1 was expressed in transgenic lines.
The color mutation was the main type in kernel mutation of M2. In M2 seedling, leaf color mutants constituted the major part. In M2 adult, the mutation character including leaf color, plant height was observed.
The morphological characteristics of the Elymus spp consisted of the single plant weight, single ear weight, tiller number, reproduction shoot length, distance between boot leaf and ear, ear color, spikelet length, lemma, awn length, spikelet width, ear width, growth rate during seedling stage, glume width, plant villus grade, growth rate from seedling to tiller, leaf color and plant height.