摘要
为了探讨赤霉素对向日葵的杀雄效果及对叶绿素的影响,试验以油用向日葵可育自交系9D002和不育系121010为材料,用5个不同浓度的赤霉素(GA3)进行了向日葵的杀雄研究,结果表明,浓度为0.015mg/g、0.025mg/g、0.035mg/g、0.045mg/g、0.055mg/g的GA3均可以降低向日葵花粉活力,其中在0.035mg/g、0.045mg/g处理条件下,花粉活力小于50%;GA3处理后,植株叶绿素含量均低于对照,0.035mg/g处理下降最显著;自交系9D002结实率低于121010异交结实率;另外,研究表明,0.035mg/gGA3处理下,不育系121010异交结实率较低,为24.499%。初步认为,0.035mg/g的GA3处理对向日葵有较好的杀雄效果。
In order to investigate the effect of GA on emasculation and Chlorophyll of sunflowers ,five different concentrations of GA3 and two sunflowers were used as materials, which were fertile inbred lines 9D002 and sterile lines 121010. The results showed that all five different concentrations of GA3 reduced the pollen viability, with utilized of 0.015 mg/g, 0.025 mg/g, 0.035 mg/g, 0.045 mg/g, 0.055 mg/g GA3. Pollen viability depressed less than 50% under the treatments of 0.035mg/g and 0.045 mg/g. More over, Chlorophyll content of plants was become lower than the control trial after GA3 treatment, and with the most significant decline under 0.035mg/g treatment. However, the outcrossing rate of inbred lines 9D002 was lower than sterile lines 121010. Furthermore, the outcrossing rate of sterile lines 121010 was 24.499 %, which was the lowest with utilized of 0.035mg/g GA3. In summary, it was the initial view that 0.035 mg/g GA3 might have a better effect on Emasculation of sunflowers.
出处
《内蒙古农业科技》
2014年第2期60-62,93,共4页
Inner Mongolia Agricultural Science and Technology
基金
内蒙古自然科学基金资助项目(2010MS0308)
关键词
GA3
向日葵
结实率
GA3
Sunflower
Setting Percentage
