论文部分内容阅读
1.栽培管理 (1)种子处理:把亲本种子放入50～55℃温水内搅拌10～15分钟后方可浸种催芽,用以消灭种子带菌 (2)错期播种、无土育苗:为确保父母本花期相遇,父本必须提前种20天,赤峰地区2月20日育苗盘内播父本,3月10日播母本。育苗茎质为筛选消毒后的炉渣,催芽期间保持茎质湿润,出苗后开始每天喷施氮磷钾及由微量元素配制的营养液一次,清水2次,约15～20天幼苗长出2片真叶时分苗于温室内。 (3)定植:选用土质肥沃、浇灌方便的蔬菜生茬地块进行,制种田要求隔离100米以上。父本比母本提前7～10天定植在塑料大棚内.其密度分别为每亩4000株和3500株。为使授粉期操作方便。母本采用大小行定植,大行65厘米,小行35厘米,株距35厘米。
1. Cultivation and Management (1) Seed Treatment: Put the parent seeds into warm water at 50-55 ℃ and stir for 10-15 minutes before seed soaking for germination (2) The flowering meet, the father must be planted in advance 20 days, February 20 in Chifeng nursery tray broadcast pens, March 10 broadcast mother. Nursery stems for the screening of disinfection of the slag, keep the stems moist during germination, after the start spraying NPK and nutrition formulated by trace elements once a day, water twice, about 15 to 20 days to grow two seedlings True leaf horizons in the greenhouse. (3) colonization: Use of fertile soil, convenient irrigation of vegetable stubble plots, farming system requirements isolation of more than 100 meters. The parents were planted in plastic greenhouses 7 to 10 days earlier than their mothers, and their densities were 4,000 and 3,500 respectively. Poll for the convenience of operation. The size of the female parent plant, large firms 65 cm, 35 cm small lines, plant spacing 35 cm.