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一、品种简介 “吉农大7号”是吉林农业大学水稻研究室选育而成。1998年通过省级审定,成为吉林省中晚熟、晚熟区推广品种。 1.特征特性:株高约100厘米,株型紧凑,叶片数16,叶片上举。穗长20厘米左右,主蘖穗整齐,平均每穗105粒,着粒密度适中,谷粒椭圆形,结实率90%以上,无芒或稀间短芒,颖及颖尖黄色,千粒重26克。生育期143—145天,需有效积温2900—3000℃。分蘖力强,耐肥,抗倒伏,子粒灌浆速度快,对温光反应钝感,活秆成熟。中抗苗、叶瘟,稻瘟表现中感,苗期较抗立枯病,耐纹枯病。
First, the species profile “Ji Nongda 7 ” is the Jilin Agricultural University rice research and breeding. 1998 passed the provincial-level validation, a late-maturing, late-maturing areas in Jilin Province to promote varieties. 1. Characteristics: height of about 100 cm, plant compact, the number of leaves 16, the leaves on the move. Spike length of about 20 cm, the main tiller spike neat, average of 105 grains per spike, grain density moderate, grain oval, seed setting rate of 90% or more, . The growth period of 143-145 days, the effective accumulated temperature 2900-3000 ℃. Strong tillering ability, resistance to fertilizer, lodging, grain filling fast, insensitive to temperature and light, living stalk maturity. In the anti-seedlings, leaf blast, rice blast in the performance of flu, seedling more resistant to blight, resistance to sheath blight.