共查询到20条相似文献,搜索用时 31 毫秒
1.
该文论述了双季杂交稻亩产吨粮的穗粒结构特点,指出栽培策略上要主攻增穗增粒,并以水稻叶龄进程为生育诊断指标,育壮秧、促早发、争足苗大穗夺高产,并注重分类管理,实现平衡增产。 相似文献
2.
通过分析衡阳地区近年来杂交中稻连遭高温危害和一季杂交晚稻屡获高产等典型事例,认为丘陵地区将杂交中稻改为一季杂交晚稻可以有效避开高温干燥天气对抽穗结实的不利影响,确保水稻生产安全。其高产栽培关键措施是:选用高产组合,配套以先进栽培技术争足穗、大穗,提高结实率和粒重。 相似文献
3.
4.
5.
莆大麦8号是2004年获得福建省农作物品种认定的大麦新品种,为了充分揭示其性状特征、发挥其增产潜力,给高产栽培提供依据,在连续五年省、市大麦品种试验中摘录莆大麦8号的产量性状数据,进行变异系数分析,简单相关分析和通径分析,并以莆大麦5号为对照品种进行经济性状的系统比较和特征特性的综合评价,从而提出主攻有效穗数,以多穗争高产;主攻结实粒数、以大穗促高产和穗数、粒数及粒重并举的三种高产栽培策略,供探讨和实际生产上选择应用。 相似文献
6.
7.
8.
盐麦2号高产栽培中,在争足穗的前提下,适当控制播种量,协调群个体生产力同步提高,以充分发挥其固有的大穗大粒遗传潜势,具有重要的实践意义。为此,我们进行了不同播种量试验,旨在描述籽粒产量及其性状表现的基础上,分析盐麦2号获得最佳产量水平时的适宜播量范围,为其大面积推广应用提供科学依据。 相似文献
9.
临澧县通过3 a 的实践,总结出了香两优68 高产栽培宜采用“高群体、多成穗、增粒数”的生长发育模式和适期播种、培育壮秧、插足基本苗、早促蘖、争多穗、攻粒数、保后劲的栽培技术措施。 相似文献
10.
介绍了杂交水稻赣优明占品种的特征特性。并对其产量构成因素的相关及对产量的贡献进行分析,明确4个产量构成因素中,每穗总粒数与产量的关系最密切,次为有效穗数,结实率、千粒重与产量的密切程度较低。每穗总粒数对形成产量的贡献率最大(Pr=0.514 1),次为每穗总粒数(Pr=0.391 3),每穗总粒数与有效穗数对产量的贡献率之和达90.54%。据此提出赣优明占高产栽培主要策略:培育足够有效穗的基础上争大穗多粒。 相似文献
11.
12.
《Journal of Crop Improvement》2013,27(1-2):227-260
Abstract Pigeonpea (Cajanus cajan [L.] Millsp.), known by several vernacular and trade names such as red gram, tuar, Angola pea, Congo pea, yellow dhal and oil dhal, is one of the major grain legume crops of the tropics and sub-tropics. It is a favorite crop of small holder dryland farmers because it can grow well under subsistence level of agriculture and provides nutritive food, fodder, and fuel wood. It also improves soil by fixing atmospheric nitrogen. India by far is the largest pigeonpea producer where it is consumed as decorticated split peas, popularly called as ‘dhal’ In other countries, its consumption as whole dry seed and green vegetable is popular. Its foliage is used as fodder and milling by-products form an excellent feed for domestic animals. Pigeonpea seeds contain about 20-22% protein and appreciable amounts of essential amino acids and minerals. Dehulling and boiling treatments of seeds get rid of the most antinutritional factors such as tannins and enzyme inhibitors. Seed storage causes considerable losses in the quality of this legume. The seed protein of pigeonpea has been successfully enhanced by breeding from 20-22% to 28-30%. Such lines also agronomically performed well and have acceptable seed size and color. The high-protein lines were found nutritionally superior to the cultivars because they would provide more quantities of utilizable protein and sulfur-containing amino acids. 相似文献
13.
概述会计信息的定义、特征及作用;阐述会计信息失真的涵义、类型、特点、手段及具体表现;指出其对经济秩序乃至整个社会的危害;并针对目前我国经济管理活动中会计信息失真的现状、探索防范与治理策略。 相似文献
14.
樱桃番茄为小型多汁浆果,不仅品质好,糖度和维生素C 含量高于普通番茄,且富含矿质,是菜中佳肴尧果中美品。樱桃番茄具有喜温、喜光尧耐肥、半耐旱等生物学特性遥进行适时播种、培育壮苗、搞好田间管理是其丰产增收的关键。本文概述了樱桃番茄的营养特性、食用性、生物学特性,以及相应的栽培管理技术。 相似文献
15.
本文是有关国兰种苗工厂化生产技术研究系列报道之四,主要报道国兰工厂化育苗技术过程中有关工艺流程及产业化问题.提供了国兰外建时成功率高达66.7 %、年最高增殖倍率达1000倍以上和国兰瓶苗移栽成活率高达95 %以上等方面的技术指标. 相似文献
16.
Tea seed is a byproduct in tea production and also a source of nutritional and bioactive compounds.There have been studies showing that extracts of tea seeds offered many physiological functions including anti-inflammatory,anti-oxidant,anti-tumor,anti-obesity,hepatoprotective and gastroprotective effects.The tea seed oil is also an acceptable biodiesel and the saponin-rich tea seed meal can be used as vermicide to expel earthworms from the soil of golf courses and sports fields.The bioactive functions of tea seed extracts and their potential uses in agricultural and industrial sectors were reviewed in the present paper. 相似文献
17.
马铃薯块茎借休眠以渡过不利其生长的条件,从而保证世代繁衍的遗传特性。马铃薯块茎的大小和休眠时间的长短影响其商品价值和利用时间,储藏过程中的休眠解除会造成水分、养分大量消耗,以至丧失应用价值。随着生产发展的需要,有关马铃薯休眠的研究已经被提出,了解休眠特征和打破休眠的方法,对于栽培和储藏保鲜具有十分重要的意义。 相似文献
18.
19.