诱抗剂对水稻秧苗抗寒效果的研究

• 作 者: 何可佳 王国平 柏连阳 罗宽
• 机 构: 湖南农业大学植保系
• 出 处: 湖南农业大学学报
• 发表日期: 1997年01期
• 关键词: 诱抗剂 水稻秧苗 水稻种子 旱育秧 死苗率 育秧方式 寒剂 田间试验 成苗率 湘早籼

用筛选出的诱抗剂１０００倍液浸水稻种子４８ｈ，在培养土旱育秧、普通土旱育秧和普通土水育秧３种育秧方式下，都能显著提高水稻种子成苗率和秧苗的干重，比用植物抗寒剂１００倍液浸种效果好．在湖南省１９个县（市）３８个试验点，用诱抗剂１０００倍液浸种，发芽率、成苗率、干重、株高和白根数比对照分别增加４．４％，１０．５％，２．２％，１．８％和１．６％，死苗率和病苗率比对照分别降低２．４％和５．６％．

1000 times with the selected antagonist immersed rice seeds 48h, in the cultivation of dry soil seedlings, ordinary soil dry seedlings and ordinary soil watering seedling three ways, can significantly improve the seedling rate of rice seedlings and seedlings dry weight , 100 times better than plant cold agent soaking effect. In 38 counties of 19 counties (cities) in Hunan Province, seed germination rate, seedling emergence rate, dry weight, plant height and white root number increased by 4.4% and 10.5% %, 2.2%, 1.8% and 1.6% respectively. The rate of dead seedling and the disease-free seedling were reduced by 2.4% and 5.6% respectively compared with the control.