甜瓜新品系的选育及可用性评价

Selective Breeding and It's Available Judgement of New Strain in Muskmelon

利用网纹甜瓜和哈密瓜类型材料杂交,经6～7代系谱选择,选育出了3个网纹甜瓜新品系,并对其稳定性、抗病性和配合力进行了综合评价。结果表明:品系1、品系2表现出高度的一致性和遗传稳定性;品系1对白粉病呈HR抗性,品系2呈R抗性,品系3呈MR抗性;品系1和品系3单果重的一般配合力效应呈正向效应(GCA值分别为0 02和0 09),品系2的网纹一般配合力高(GCA值为0 16),品系3的单果重、果肉厚、糖含量均呈正向效应。

Stability,disease resistance and combining ability are evaluated comprehensive after was selectived 3 new netted melon strains crossed with Muskmelon and Hami melon types by 6～7 eras.It indicates that the characters of strain 1 and 2 are homogeneity and hereditary stability;strain 1 is high resistant to powdery mildew,strain 2 is resistant.General combining ability of per fruit weight for strain 1,3 are positive(GCA=0.02,0.09).Combining ability of netted trait is high for strain 2(GCA=0.16) and per fruit weight,fruit thickness,sugar contant for strain 3 positive too.