杂交中籼新组合的比较试验研究

为了筛选适合安徽省寿县地区种植的中籼组合,为良种推广提供科学依据。设汕优63为对照,对引进的12个中籼组合(品种)进行区域试验,对其产量、生育性状和株高、穗长、穗粒结构、有效穗、成穗率、抗病性、抗倒性和落粒性等经济性状进行了分析,还对品种综合评述,筛选适合寿县地区种植、符合市场需要的新组合(品种)。9个品种比对照产量高,3个品种比对照产量低,其中辐优138、籼杂优0403、丰优18和籼杂优0501 4个品种比对照增产10%以上。所有参试组合均具有良好的抗病性、抗倒性和落粒性。丰优18、籼杂优0403、籼杂优0501、两优827适宜在本生态地区种植,而隆安0402、金23A/R源5可在寿县示范种植。该研究为杂交中籼组合在生产中的应用提供了理论依据。

Analysis of Comparison Experhnent in New Combinations of Medium Indica Hybrid Rice

The objective of the research was to screen the meduim indica hybrid rice combinations which were suitable for its planting in Shou county of Anhui province so as to provide the scientific basis for the popularization of good varieties.With Shanyou 63 as CK,the yield,the characteristics of growth and development,plant height,spike length,the structure of spike and grain,effective spike,spike-formed rate,disease-resistance,lodging resistance and shattering habit of 12 meduim indica hybrid rice combinations were determined in regional experiment to screen the new combinations(varieties) which were suitable for planting in Shou county and could meet the market demands.Compared with CK,the yield of 9 varieties were higher and that of 3 varieties were lower.The yields of Fuyou 138,hybrid indica rice You 0403,Fengyou 18 and hybrid indica rice You 0501 were all increased over 10% than that of CK.Tested combinations all had good disease-resistance,lodging resistance and shattering habit.The results showed that Fengyou 18,hybrid indica rice You 0403,hybrid indica rice You 0501 and Liangyou 827were suitable for planting in this ecological area, and Longan 0402,Golden 23A Yuan 5 could be cultivated for demonstration.The research provided the theoretical basis for the application of meduim indica hybrid rice combinations in the production.