食用向日葵杂交种龙食葵4号的选育及配套栽培技术

Breeding and Cultivation Technology of Confectionery Sunflower Hybrid Longshikui No.4

食用向日葵杂交种龙食葵4号是以育成的胞质雄性不育系LCMS2A为母本,同型恢复系R7-1为父本杂交育成。该杂交种生育日数106 d左右,全生育期活动积温2 075℃,叶片数30片,花盘直径24.0 cm,百粒重17.6 g,子仁率52.5%,子仁蛋白质含量33.62%。在黑龙江省生产试验中,籽实平均产量3 001.1 kg/hm2,较对照甘葵1号增产21.6%。适于黑龙江省一、二、三积温带的齐齐哈尔、大庆、绥化等市(县)种植,也适宜其他省(区)的同积温地区种植。同时,提出了龙食葵4号的优质、高产栽培技术。

The confectionery sunflower hybrid Longshikui No.4 was bred by using CMS ＂LCMS2A＂ as female parent and restoring line ＂R7-1＂ as male parent. The growth period was about 106 days, the activity accumulated temperature was about 2 075 ℃, the plant height was 196.6 cm and the stem diameter was 3.3 cm, leaves number was 30, the flower disc diameter was 24.0 cm,the kernel weight 17.6 g, seeds rate 52.5%, the seed protein content 33.62%, the average grain yield was 3 001.1 kg /hm2, 21.6% higher than that of the control Gankui No.1. The variety is suitable to plant in the 1st, 2nd and 3rd accumulated temperature zones in Heilongjiang province, such as Qiqihaer, Daqing and Suihua, etc., as well as the equivalent areas of other provinces. Moreover, the high-quality and high-yield cultivating technology for Longshikui No.4 is put forward.