豇豆新品种鄂豇豆13的选育

摘要

V igna unguiculata (L.) Walp. cv. E-Jiangdou 13 is a new early-maturing cowpea variety,hybridized through systemic selection,with ealy-maturing strain V. unguiculata cv. Cuiguan 101 as its female parent and medium-maturing V. unguiculata cv. E-Jiangdou No.8 as its male parent. Cowpea pods grow on the main stems with the average length of 60.26 cm, while the first inflorescences grow from 2 to 4 section. It is about 58 days from Spring sowing to first collection and about 45 days from Autumn sowing. Compared with the contrasted cowpea variety,the yield is 2246.46 kg/667 m2,with an increase of 21.29％ which is 394.27 kg/667 m2.%鄂豇豆13[Vigna unguiculata(L.)Walp.cv.E-Jiangdou 13]是以优选的早熟品种翠冠101(V.un-guiculata cv.Cuiguan 101)为母本,以优良中熟品种鄂豇豆8号(V.unguiculata cv.E-jiangdou No.8)为父本,配组杂交,通过系统选育而成的早熟豇豆新品种.其主蔓结荚,第一花序着生于主蔓第二至第四节,春季从播种到始收58 d左右,秋播从播种到始收45 d左右.平均荚长60.26 cm,折合产量2246.46 kg/667 m2,比对照增产394.27 kg/667 m2,增幅达到21.29％.