摘要：用9个亲本按NCII设计配制的20个杂交籼稻组合在同一地点3个季节的试验资料,分析了整精米率性状在3种环境下的遗传及配合力效应。结果表明:①3种环境下亲本整精米率的一般配合力方差表现不一致,亲本对杂种一代整精米率的作用在特定环境下得以表现;②非加性效应对籼型杂交稻整精米率性状起决定作用;③不育系、恢复系在不同环境下对杂种一代的整精米率的作用不一样,而同一组合在不同环境中的特殊配合力效应的作用大小和方向是不同的;④9个亲本中P4(II 32A)、P7(R5531)、P9(R5429)的一般配合力较好,可加以利用;⑤整精米率的广义遗传力较高,而狭义遗传力较低;⑥在育种中既要注重亲本的选择,更重要的是广泛测交,同时还要注重环境条件。

摘要：通过6个处理的试验设计,研究了在自然条件下不同晾晒方式对国审优质杂交稻泸香615裂纹米形成和整精米率的影响。结果表明,竹制躺席隔地晾晒,晾晒稻谷厚度为3cm,晾筛过程定时均匀翻动的晾晒方式对降低泸香615裂纹米粒和裂纹米率,提高整精米率有极显著的作用。晾晒时稻谷厚度对降低裂纹米率很关键,建议晾晒稻谷厚度在3cm以上。

摘要：选用自育的20个糯玉米杂交种为供试材料,采用随机区组设计,对鲜穗采收期和成熟期产量、穗长、穗粗、穗行数、行粒数等穗部性状进行相关和通径分析。结果表明,出籽率、穗长、百粒重性状对鲜穗产量作用大。通径分析显示各性状对鲜穗产量作用大小顺序为:行粒数>百粒重>穗行数>穗粗>出籽率。在完熟期,穗粗、着粒深、百粒重对干籽粒产量贡献较大,进一步通径分析表明各性状对干籽粒产量作用排序为:百粒重>穗粗>穗行数>行粒数>出籽率>秃尖长>着粒深。

摘要：以萝卜为主要原料进行速成时鲜泡菜的研究,探索零排放循环生产新工艺,促进四川泡菜的创新发展。

摘要：[Objective] This study was conducted to analyze the difference in the general combining ability of yield traits of rice varieties in China and South Asia and to provide reference for the introduction and utilization of rice restorer lines from South Asia. [Method] A total of 111 hybrids were obtained by crossing 37 restorer lines in China and South Asia with Gang 46A, Lu 98A and Dexiang 074 following a NC II design. The combining ability of eight yield traits of the hybrids was analyzed in Luzhou and Deyang bases of Sichuan Province. [Result] In both bases, the eight yield traits had significant or extremely significant differences between the combina- tions, restorer lines, sterile lines or sterile line^restorer line, suggesting that there were d^erences in the genetic effects between the combinations or lines. The gen- eral combining ability （GCA） variances were all higher than special combining ability （SCA） variances in parents, which indicated that these traits were affected by gene additive effect. Restorer lines contributed more to F1 generation than male sterile liens in the eight yield traits. Nine restorer lines from India and Bangladesh were ranked in the top 15 lines with high GCA in the number of productive tillers in both bases. [***] There was significant differences in the combining ability in the eight yield traits between the restorer lines from China and South Asia. The lines from India and Bangladesh were better than those from China in the GCA of the number of productive tillers, and the lines from China were better than those from India and Bangladesh in the GCA of other traits.