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1992~1993年在江苏沿海地区农科所,对江苏省70~90年代育成的抗枯萎病棉花品种进行产量及有关性状的比较试验。结果表明:90年代品种比70年代品种产量提高近两成。80年代品种铃重的增加,90年代单株铃数和衣分率的提高是棉产上升的主导因素。不同时期育成的品种纤维品质变化不显著。在棉铃空间分布上,90年代品种纵向上部铃及横向第一、二果节内围铃比例均比70年代品种增加。棉株光合强度、生物产量及收获指数等生物学性状90年代品种也有明显提高,群体消光系数则相反,90年代品种显著降低。对枯萎病,70、80、90年代品种均保持高抗水平。今后江苏省抗枯萎病棉花品种的选育方向,是在现有高产、高抗水平的基础上,继续进行超高产品种选育,并主攻纤维品质的改良及兼抗黄萎病品种的选育
From 1992 to 1993, Jiangsu Provincial Coastal Agricultural Science Institute conducted comparative experiments on yield and related traits of cotton varieties resistant to Fusarium wilt that were bred in Jiangsu Province from 1970s to 1990s. The results showed that the yield of varieties in the 1990s increased by nearly 20% compared with that of the 1970s. The increase of boll weight in the 1980s and the increase of the number of bolls per plant and the percentage of clothing in the 1990s are the dominant factors for the cotton production to rise. The fiber quality of varieties cultivated in different periods did not change significantly. In the spatial distribution of cotton bolls, the percentage of ring bells in the vertical direction of the varieties in the 90s and in the horizontal first and second fruit types all increased more than those in the 1970s. The photosynthetic rate, biomass and harvest index of cotton plants also increased significantly in the 90s, while the population extinction coefficient was the opposite. The varieties in the 90s significantly decreased. Fusarium wilt, 70, 80, 90 varieties are maintained high anti-level. In the future, the breeding direction of cotton varieties resistant to Fusarium wilt in Jiangsu Province is based on the existing high yield and high resistance level. The breeding of super high-yielding varieties is continued and the improvement of fiber quality and the selection of resistant varieties of Verticillium wilt