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豫南稻区是我省水稻主产区,常年种植水稻700万亩左右,约占全省水稻种植面积的70％。自推广三系杂交水稻以来,常规水稻种植面积越来越少。目前豫南稻区推广的三系杂交水稻品种为汕优63。由于其品种单一,不抗白叶枯病,而且生产上所用杂交水稻种子有99％靠外省调入,种子质量难以保证。因此,我们于1988年引进广东省农科院选育而成的特青2号水稻品种,经试验、示范,于1992年通过河南省农作物品种审定委员会认定。现将其产量表现及利用情况简结如下。1 特青2号产量表现1.1 试验、示范产量结果 1989年在5个点试种,共种特青2号182.8亩,平均亩产稻谷497.7kg,其中有8.2亩平均亩产稻谷550.3kg,比同等条件下汕优63略为增产,比桂朝2号增产8.8％。1990年参加河南省南部稻区中籼水稻良种区域试验,试验
South of Henan Province is the main rice-growing areas in our province, perennial planting of about 7000000 acres of rice, accounting for about 70% of the province’s rice acreage. Since the promotion of three-line hybrid rice, conventional rice planting area less and less. At present, the three-line hybrid rice variety popularized in the south of Henan Province is Shanyou 63. Because of its single species, not resistant to bacterial leaf blight, and the production of hybrid rice seeds used 99% transferred by the provinces, the seed quality is difficult to guarantee. Therefore, we introduced the Teqing No.2 rice variety bred from Guangdong Provincial Academy of Agricultural Sciences in 1988 and passed the test and demonstration. In 1992, it was approved by Henan Province Crop Variety Approval Committee. Now the performance of its production and utilization are summarized below. 1 Teqing 2 yield performance 1.1 test, demonstration yield results In 1989 at 5 point trial, a total of 182.8 acres of special Teqing No. 2, the average yield of 497.7 kg of rice, of which an average of 8.2 mu per mu yield of rice 550.3kg, Under the same conditions, Shanyou 63 slightly increased production, an increase of 8.8% over the No. 2 Guizhao. In 1990 to participate in southern Henan Province Rice Indica rice varieties regional trials, experiments