共查询到20条相似文献，搜索用时 67 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
采用常规育种方法与分子标记辅助选择育种技术相结合,同时采用海南加代穿梭育种方法培育出抗小西葫芦黄化花叶病毒病（Zucchini yellow mosaic virus,ZYMV）西葫芦一代杂种京葫CRV4。父本为06-2-6-38-15-26-18,母本为08-19-15-29-18-20-58。该品种早熟,生长势中等,短蔓;瓜码密,连续结瓜能力强;商品瓜翠绿色,光泽度好,中长柱形,顺直均匀;耐热,不易早衰,适应性强,抗ZYMV 和白粉病;适合南北方春秋大棚和露地种植。 相似文献
12.
‘霞光’是由母本西藏虎头兰‘黄素花’（Cymbidium tracyanum L. Castle）和父本大雪兰
（Cymbidium mastersii）杂交选育而成的兰花新品种。四季常绿，叶带状，14 ~ 20 枚；花葶高52 ~ 55 cm，
着花6 ~ 12 朵，花朵自然水平展开9.6 ~ 13.2 cm，有香味。萼片和花瓣均为金黄至卵黄色，切花瓣稍宽
（1.4 ± 0.2）cm，唇瓣左右裂片之间有两行金黄色毛，合蕊柱背和腹面为红色。花期40 ~ 60 d，瓶插期
20 ~ 45 d。适宜在亚热带或气候相近的温暖地区保护地栽培。 相似文献
13.
14.
15.
16.
17.
津优308 号是以X8-24 为母本,以35-1-12-6 为父本配制而成的保护地黄瓜一代杂种。植株生长势强,叶片中等大小;抗霜霉病、枯萎病、角斑病,中抗白粉病;耐低温弱光性好,不早衰,持续坐果能力强;生长后期耐高温,在34～36 ℃条件下亦可正常结瓜。瓜条顺直,瓜把短,皮色深绿,光泽度好,刺密,瘤中等,商品性好;瓜条长34 cm 左右,单瓜质量220 g 左右,日光温室越冬栽培产量16 000 kg·（667 m2）-1 以上,早春大棚栽培产量可达7 000 kg·（667 m2）-1,适宜我国北方地区越冬温室和早春大棚栽培。 相似文献
18.
19.
Haifa Kchaou Ajmi Larbi Kamel Gargouri Mohamed Chaieb Fermín Morales Monji Msallem 《Scientia Horticulturae》2010
Changes caused by NaCl-induced salinity on several growth parameters and ions accumulation have been measured in five olive (Olea europaea L.) cultivars (‘Chemlali’, ‘Chetoui’, ‘Koroneiki’, ‘Arbequina I18’, and ‘Arbosana I43’) growing in a greenhouse in nutrient solution pot experiment. One-year-old plants were transplanted to sand–perlite (1:1) culture, and were irrigated with half-strength Hoagland nutrient solution containing NaCl at various levels (0.5, 50, 100 and 200 mM). Salinity induced significant decrease in growth parameters, but to a different extent in each cultivar. Leaf growth and total leaf area per plant were significantly affected by all salinity treatments in all studied cultivars, being ‘Arbequina I18’ the most sensitive cultivar. Leaf drop phenomenon was observed from 60 days after salt application at high salinity treatments, mainly in Arbequina I18. Contrary to leaf area, leaf thickness increased progressively during the experiment. ‘Chemlali’ developed thicker leaves at the two highest salinity treatments when compared to the other cultivars. Na+ and Cl− concentrations were higher in roots than in shoots and leaves in most of the cultivars investigated. The effectiveness of Na+ exclusion mechanism in the roots differed significantly among studied cultivars, working effectively in ‘Chemlali’ (by inhibiting translocation of Na+ to the aerial part) and being much less efficient in ‘Arbequina I18’. Furthermore, leaf abscission can be considered as an additional tolerance mechanism of olive cultivars allowing the elimination of leaves that had accumulated Na+ and Cl− ions. Tolerance to salinity stress was as follows: ‘Chemlali’ > ‘Chetoui’ > ‘Arbosana I43’ > ‘Koroneiki’ > ‘Arbequina I18’. This order of salt tolerance was indicated by lower reduction in plant growth parameters (shoot elongation, trunk diameter, total plant dry weight, internodes length, and total leaf area), the increase of leaf thickness, and by the effectiveness of the exclusion mechanism of Na+ and Cl− in the root system. 相似文献