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材料与方法 1984年采用本校产的V98,赤霉素用量3水平,次年4月播种,每处理3×100克。 1986年采用本校产的V64,赤霉素用量3水平,1988年4月播种,每处理3×100克。 1988年采用道县种子公司产的V6,赤霉素用量6水平,当年11月播于温室,每处理3×100粒。赤霉素均为湖南生物制药厂晶体,于破口抽穗始期喷施。以恶苗病菌种子接种诱发徒长苗作为对照。诱发的徒长苗出现后,拔取各处理部分样本,测量各叶长度。结果与分析 1.当年或次年播种,表现随赤霉素用量增加、株高增加,24克达到峰值,30克反而减少。用量间的
MATERIALS AND METHODS 1984, the school produced V98, gibberellic acid dosage 3 level, April planting the following year, each processing 3 × 100 grams. In 1986, the school produced V64, gibberellin dosage 3 levels, April 1988 planting, each processing 3 × 100 grams. In 1988, D6 produced by Daoxian Seed Company was used in 6 levels of gibberellin. In November of that year, it was sown in the greenhouse with 3 × 100 grains per treatment. Gibberellin are biological crystals factory in Hunan, the beginning of breaking heading spraying. Inoculation induced seedlings were used as control. Induced apprentice long seedlings appear, remove each part of the sample processing, measuring the length of each leaf. Results and Analysis 1. The year or the following year sowing, the performance of gibberellin increased dosage, plant height increased, 24 grams peak, 30 grams but decreased. The amount of room