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大豆品系试验结果表明,品系周zk0949-3-4-1等13个品系超过对照20%,有22个品系超过对照5%。可见,河南、山东等地来源的品种在安徽也有较好的丰产性和适应性,鉴定初步筛选出一部分丰产性好,适应性好的新品系。 相似文献
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花生新品种引进对比分析 总被引:1,自引:0,他引:1
试验选用11个花生品种(品系),采用随机区组排列,3次重复,大垄双行覆膜栽培模式。对各个花生品种(品系)的产量、品质、抗逆性、种子的休眠性、适应性的分析结果如下:花育23、铁引花1号比对照白沙1016增产显著,增幅分别为40.23%和32.59%:花育23属疏枝直立型小花生品种,种子休眠性、抗旱性强,较抗叶斑病,生育期128 d。产量高,品质优,抗病性强。铁引花1号整齐度好,耐旱、抗病性强,果形大,出仁率高,生育期122 d。 相似文献
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安徽省马铃薯新品种(系)引进及比较试验 总被引:3,自引:0,他引:3
《中国马铃薯》2016,(5):261-267
为了选育适合安徽地区种植的马铃薯新品系,从中国农业科学院蔬菜花卉研究所引进了13个新品系,以‘中薯3号’为对照,对参试品系的植物学特性、生育期、丰产性、抗性和块茎品质等进行观察记载、调查和测定。经过综合性状评价,新品系‘D671’、‘D514’和‘N138’较对照分别增产13.93%,10.70%和8.10%,且这3个品系综合性状优良,具有较好的适应性。 相似文献
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2015—2016年度在大理州农科院粮作所试验基地对本院新选育的大麦新品系的丰产性、生育期、抗病性、抗逆性以及适应性等综合性状与利用价值进行鉴定和筛选。结果显示:这11个品系的产量较对照S500显著增产(P0.05),增幅在10.18%~33.55%之间,其中10个品系较对照呈极显著增产(P0.01),增幅在13.04%以上,且1014DM7-9-5-7、1014DM7-9-1-4、101DM8-26-6-3、106DM12-24-1-14、1226DM15-8、1203DM2-5这6个品系的丰产性好,综合性状优良,具有较好的应用前景。 相似文献
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甜菜多倍体新品种-包育302的选育 总被引:6,自引:2,他引:4
甜菜多倍体新品种—包育302系多倍体高糖型杂交种,由四倍体品系BS95429作母本,与自育二倍体品系BS79-1作父本杂交育成,该品种丰产性稳定,含糖高,抗病性强,对丛根病有较强耐病性。在2000~2001年的内蒙古自治区甜菜品种区域试验中,两年均达到高糖型品种标准,其块根产量、含糖率、产糖量两年平均比对照分别提高3.5%、1.00度和9.7%;在2001年的生产试验中,根产量、含糖率和产糖量分别比对照提高28.1%、1.28度和37.1%。 相似文献
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采用苗期产量预测方法对未知产量品系的3龄胶树进行产量预测,结果如下: 用“小叶柄胶法”,高产品系的选对率达80%,低产品系的误选率为10%;3龄幼树小叶柄胶值与其成龄芽接树头三割年平均产量之间呈极显著相关(n=42,r=0.5559~**)。用“叶脉胶法”,高产品系的选对率为63.6%,低产品系的误选率为8%;3龄幼树叶脉胶等级与其成龄芽接树头三割年平均产量之间亦呈极显著相关(n=42,r=0.5218~(**))。 相似文献
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马铃薯主要生理性状和产量性状相关性的研究 总被引:1,自引:0,他引:1
以大西洋、滇薯6号、PB04和PB08 4个加工型马铃薯品种(系)为供试材料,进行不同品种块茎形成期主要生理性状和收获时产量特性的比较及部分性状间的相关性研究。结果表明:在马铃薯的块茎形成期大西洋的光合速率最强,根系活力较强,抗逆性较强,其农艺性状和块茎产量特征均表现较好。相关分析结果显示,马铃薯的块茎数量、块茎产量、干物质含量和块茎淀粉含量与光合速率呈正相关,生物产量、块茎数量、块茎产量、干物质含量和块茎淀粉含量与叶片电导率呈负相关,而生物产量与根系活力呈正相关。 相似文献
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秦豆10号是通过有性杂交和混合个体选择法,历经12 a选育而成的中熟、高产、抗病大豆新品种.该品种综合性状优良,籽粒品质好,高产稳产,抗逆性强,适宜黄淮区夏大豆推广种植. 相似文献
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《Journal of Crop Improvement》2013,27(1-2):221-247
SUMMARY Rubber production has been extended to many sub-optimal environments worldwide during late 1970s. Prominent among them are northeast India, highlands and coastal areas of Vietnam, southern China and southern plateau of Brazil. In addition to near-ideal growing conditions, these areas offer stresses like low temperature, higher altitude, diseases and wind. South China experiences all these stresses due to expanse of land mass and extremely diverse climate. A number of rubber clones are being evaluated along with derivation of new recombinants adaptable to these areas. Rubber clones are seen to exhibit specific adaptation in these areas. A negative relationship of yield with minimum temperature, wind velocity and evaporation is very distinct in all clones in Tripura (NE India). While RRIM 600 can be adjudged as a universally adapted clone with moderate yield under all these sub-optimal environments, specificity in yield adaptation goes in favor of PB 235, RRII 208, RRII 203 and HAIKEN 1 (India); RRIM 600, GT 1 (Vietnam); REYAN 8-333, PB 235 (China) and PB 235, FX-3864 (Brazil). Though PB 235 gave higher yield in these areas, recommendations for commercial cultivation are impeded as a result of high wind damage. Clonal specificity for adaptation is distinct. 相似文献
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Effects of Neotyphodium endophytes on growth, reproduction and drought-stress tolerance of three Lolium perenne L. genotypes 总被引:1,自引:0,他引:1
U. Hesse W. Schöberlein L. Wittenmayer† K. Förster K. Warnstorff‡ W. Diepenbrock W. Merbach† 《Grass and Forage Science》2003,58(4):407-415
Three Lolium perenne L. genotypes collected from different natural habitats were tested for the effects of their fungal endophyte Neotyphodium spp. on plant growth and seed yield. Half the clones of the originally infected plants were subjected to fungicide treatment to eradicate the endophytes. In an experiment, the clones were planted separately into pots and were either watered adequately or subjected to drought stress. In the genotype collected from a dry site, the endophyte infection reduced plant growth at an adequate water supply, but increased regrowth under drought. In the genotype from a periodically either flooded or dry site, endophyte infection significantly promoted the development of reproductive tillers and seed production (effects which are associated with adaptation to drought). In contrast, the genotype that originated from a wet site showed higher sensitivity to drought stress when endophyte infection was present. The results suggest that environmental conditions in the original habitat of the plants may influence the symbiotic interaction between plant and fungus, probably through natural selection. However, endophyte‐induced increases in root dry weight and root/shoot ratio were recorded for all three genotypes. These features could be beneficial for plant persistence, especially on sites where water is the growth‐limiting factor. 相似文献