AB型增粒剂是一种能够显著提高杂交稻繁殖制种异交结实率的最佳新型药剂,是目前国内同类药剂的佼佼者。经多年多地试验证明,使用AB型增粒剂后,一般可提高异交结实率约30个百分点,增产25％左右,每亩还可少用九二○2～3克。 1 增产原理 1.1 能够刺激穗下第一、二节间的迅速伸长,尤其是穗下节的伸长十分显著,从而使不育系包颈程度 AB-type granule enhancer is a new type of medicament that can significantly improve the outcrossing rate of hybrid rice seed production, is currently the leader of similar domestic pharmaceuticals. After many years of tests to prove that the use of AB by the granulation agent, the general can increase the rate of outcrossing about 30 percentage points, an increase of about 25%, but also less per acre 9,202 ~ 3 grams. A yield-increasing principle 1.1 to stimulate the spike in the first, the rapid expansion between the two sections, especially under the spike section elongation is very significant, so that the degree of infertility package neck