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我队64亩四优二号(闽优一号)中稻制种田,共收种子10300斤,其中不套作制种田56.5亩,亩产167斤。套作制种田7.5亩,亩产119斤。在制种技术上,主要抓以下几个环节:一、播种错期调得当父母本花期是否相遇是制种成败的关键,但不育系和恢复系的生育期差异性大,而把花期巧安排在一年中最适宜的天气里相遇,则需要适当调节父母本的播种期。我队地处闽北武夷山下,秋寒来得早,影响晚季制种。为了提高杂优制种质量,保证种子纯度,安排好花期,是夺取制种高产的保证。根据去年的制种经验和教训,参照今年的气象预报,经分析,认为龙湖大队最适宜水稻扬花季节在八月中旬至九月五日之间。因此,把制种田花期安排在这段时间里,我们认为:1.恢复系与不育系生育期比较稳定;2.容易掌握播种期;3.气温衡定,湿
Our team 64 acres of Siu-2 (Min You 1) medium-sized rice farming, received a total of 10300 pounds of seeds, of which 56.5 acres of cropping system, 167 kg per mu. Set system for farming 7.5 acres, 119 pounds per mu. In the seed production technology, mainly in the following areas: First, the sowing of the wrong tune tune when the parents of the flowering is the key to the success of seed production, but sterile and restorer lines of the growth period of the difference, and the flowering clever Arrangements to meet in the most suitable weather throughout the year require the proper sowing of parental books. My team is located in northern Fujian Wuyishan, autumn come earlier, affecting the late season seed production. In order to improve the quality of hybrid seed production, ensure the purity of seeds and arrange the flowering period, it is the guarantee to seize high yield of seed production. According to last year’s seed production experience and lessons, with reference to this year’s meteorological forecast, the analysis shows that the most suitable for the Longhu Brigade is the flowering season between mid August and September 5. Therefore, the system of farming flowering arrangements in this period of time, we think: 1. Recovery line and sterile lines during the relatively stable growth period; 2. Easy to grasp the sowing period; 3. Temperature equilibrium, wet