共查询到20条相似文献，搜索用时 78 毫秒
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特优７０系以龙特浦Ａ为母本，明恢７０年为父本育成的灿稻组合，具有高产稳产，中抗稻瘟病、白叶枯病，米质优良，适应性好，制种产量高等特点，１９９９年３月通过福建省品种审定委员会审定。 相似文献
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分析2000—2009年浙江省审定通过的55个常规早籼稻品种的产量、产量构成因素、稻瘟病、白叶枯病抗性和生育期等主要农艺性状，发现近10年来区试及生产试验产量增加的趋势明显，产量的增加主要是由每穗实粒数和干粒重的增加而引起，每穗实粒数的增加主要是由于提高了结实率。近10年来审定通过的常规早籼稻品种的生育期变化不大。2004—2009年审定的常规早籼稻品种稻瘟病及白叶枯病抗性也没有发生太大的变化。分析结果说明，浙江省审定的常规早籼稻品种在抗病性、生育期等性状保持稳定的同时，产量性状向着大粒且高结实率的方向发展。 相似文献
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湛油30是以粤油223为母本，汕油523为父本进行杂交选育而成的花生新品种。具有高抗锈病，抗倒伏，产量高，品质优，出仁率高等优点。在各级区域试验中，其平均荚果产量为3114．6～4058．6kg／hm2，比对照种汕油523增产3．75～12．2％。该品种于1999年和2002年分别通过了广东和全国农作物品种审定委员会的审定，适宜我国南方花生产区推广种植。 相似文献
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W. L. Porter 《American Journal of Potato Research》1967,44(10):382-382
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Effects of timing and rate of N fertilizer application on concentrations of P, K, S, Ca, Mg, Na, Cl, Mn, Fe, Cu and Zn in herbage from perennial ryegrass/white clover pastures were studied at two sites in south-western Victoria, Australia. Nitrogen fertilizer (0, 15, 25, 30, 45 and 60 kg ha–1 ) was applied as urea in mid-April, early May, mid-May, early June and mid-June 1996 to pastures grazed by dairy cows. At Site 1, N fertilizer resulted in a linear increase in P, K, S, Mg and Cl concentrations in herbage and a linear decrease in Ca concentration. For all times of application, concentrations of P, K, Ca, Mg and Cl in herbage increased by 0·0048, 0·08, −0·010, 0·0013 and 0·053 g kg–1 dry matter (DM) per kg N applied respectively. For S concentration, maximum responses occurred in mid-May (0·012 g kg–1 DM per kg N applied). At Site 2, N fertilizer resulted in a linear increase in P, S and Na concentrations in herbage, a linear decrease in Ca concentration and a curvilinear increase in K and Cl concentration. The maximum responses for P, S and K concentrations in herbage occurred for the N application in mid-June and were 0·015, 0·008 and 0·47 g kg–1 DM per kg N applied respectively. For Cl concentration, the maximum response occurred for the N application in early June and was 0·225 g kg–1 DM per kg N applied. Overall, applications of N fertilizer up to 60 kg ha–1 did not alter herbage mineral concentration to levels that might affect pasture growth or animal health. 相似文献
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Krishna Kumari S Thayumanavan B 《Plant foods for human nutrition (Dordrecht, Netherlands)》1998,53(1):47-56
Scanning electron microscope (SEM) pictures of small millet starch granules showed more large polygonal and few small spherical or polygonal granules. The granules of small millets resembled those of rice starch granules. The size of the starch granules ranged from 0.8–10 m. The size of the granules was larger in barnyard millet and smaller in proso millet. Several granules showed deep indentation caused by protein bodies. SEM of starch isolated from 24 hour-germinated kodo millet showed pitting or pinholes at some points due to the attack of amylases (preferentially on bigger granules). Brabender viscoamylograph studies on small millet starches revealed that the gelatinization temperatures ranged from 75.8 to 84.9 ° C. Barnyard millet possessed lower amylograph viscosity, minimum breakdown, and relative breakdown values when compared to the other small millets. 相似文献