摘要
本研究探讨了通过培育理想株型以克服母本撒播制种潜在的倒伏危机的技术途径。该文表述了3个主攻要素的集合:1.培育庞大、高活力的根系群,改善耕层土壤结构,提高稻株固着力。2.培育矮壮、竖立、紧凑型植株,保持良好的光合姿态,降低重心,提高稳定性能。3.应用生化调控手段,使之既解除包颈,又不使植株伸长超高。其技术途径可归纳为:起垄栽培、节水勘灌;适时、适量喷施植物生长调节剂多效唑(MET)、九二○(GA3)。它们之间促进与制约的交互作用,成功地实现了理想株型的塑造。
The research on rice resistance to lodging by means of broadcasting female parent inseed production can be realized through directive cultiveation of ideal plant type.This paperdeals with three major factors in it:1.Cultivating large,vigorous root systems of riceand improving soil structure in top soil for closer adhesiveness between soil and rice roots2.Cuitiveating short,sturdy and erect plants for rice to have a good photosynthesis andlodging resistance;and 3.Adopting bio-chemical measures to reduce enclosed pani-clesand prevent riceplants from growing over-high,Its practi-cal methods are ridge culture,frequent water-saving irrigation;and proper spray application of plant growth regulatorssuch as MET,GA_3,in order to obtaing the ideal plant type.
出处
《种子》
CSCD
北大核心
1992年第3期31-34,共4页
Seed
关键词
配套模式
制种
株型
定向培育
Hybrid rice seed prodution
Ideal plant type
Directive cultivation
Biochemical regulation
