'M1004'是以M2010-ZLK1-12-V为母本,M2010-FZ-A为父本杂交选育的早中熟厚皮甜瓜新品种.果实椭圆形,单果质量1.45 kg,果皮金黄色,果肉乳白色,腔色红,果肉厚2.45 cm,肉质较松脆,果肉纯甜,中心可溶性固形物含量16.2％左右.全生育期88～95 d,果实发育期32～38 d.中抗白粉病和霜霉病.产量34 200kg·hm-2左右.

‘M1001’是早中熟杂交厚皮甜瓜新品种.生长势较强.果实椭圆形,单果质量1.36 kg,果皮乳白色,老熟时微泛黄,覆10条左右浅绿色暗沟,果肉乳白色,肉质较松脆,厚2.3 cm,中心可溶性固形物含量17.6％.全生育期86～90d,果实发育期32～38 d.中抗白粉病和霜霉病.产量33 450 kg ·hm-2.适合湖北地区春秋季保护地栽培.

西瓜是夏季消费的主要时令水果,也是带动农民快速增收的高效园艺作物.随着消费需求的多样化发展,中小果型西瓜备受青睐. 目前大面积种植的小西瓜品种主要为早春红玉类型,存在种植年限较长,品种本身的抗性、品质、含量等方面开始退化,连作障碍显著的现象. 诸多育种单位着力选育优质花皮红肉小果型西瓜品种.武农8号是武汉市农业科学院选育的杂交一代有籽西瓜品种,于2015年通过湖北省农作物品种审定委员会审定,审定编号鄂审瓜2015001,2017年获得农业部新品种登记,登记证号GPD西瓜(2017)420128. 介绍了西瓜新品种武农8号在湖北、山东、海南等地的试种表现,以供参考借鉴.

To study the yield potential and its component factors of new cotton variety Jinkeza 1,the author discusses the coordination of yield component factors and determines the main target of its high-yielding cultivation.Based on the data of Jinkeza 1 in the regional experiment(C group) of hybrid spring cotton varieties in the Yellow River Basin in two consecutive years of 2006-2007 and the national production test of cross-bred spring cotton in 2008,this paper analyzes the plan-ting density,yield and yield traits by the methods of partial relation and path analysis and multipleliner regression analysis.It is made clear that the 4 yield component factors can promote the direct path coefficient of the lint yield,ordered as follow:density(0.806 0)boll weight(0.640 7)bolls(0.640 3)lint percentage(0.310 4).Through the regression equation simulation,the index value of the yield component factors is exported at different lint yield levels.The results show that it needs to increase 429 plants/ha in density,0.25 boll per plant in number,0.16 g per boll in weight and 0.45% in lint percentage to achieve each additional 100 kg/ha of lint yield within the total lint yield from 1 300 kg/ha to 2 000 kg/ha.In summary,the high yield cultivation measures aim at striving for 16-18 bolls,stabilizing boll weight(6.2-6.5 g) and ensuring lint percentage(43%-45%) as the main direction based on the average density in this experiment(45 000 plants/ha).

用浸根接种法对来自武汉市郊西瓜主产区,经单孢分离得到的12个西瓜枯萎病菌株进行了生理小种分化鉴定。根据这12个菌株在3个鉴别寄主上的反应,初步将它们划分为2类:一类为1号生理小种,另一类为0号生理小种。