西瓜从开花到成熟需要多少天

2025-02-27 20:41:23
推荐回答(5个)
回答1:

西瓜从开花到生长成熟,通常至少需要一个月的时间。
它的生长速度是很快的,若是早熟的品种,在授粉结果后3天就会成熟,要是中熟和晚熟的品种,一般都要延长5-1天的时间。

回答2:

西瓜从开花到成熟一般需要30-40天左右。西瓜果实生长很快,一般中熟品种在开花授粉后10天可长1千克左右,20天可长4千克左右,30天左右即可成熟,晚熟品种需要40天左右。
西瓜是人们盛夏时最常选用的一种水果,不仅水分多而且营养也很丰富,含有蛋白质、糖、钙、磷、铁、钾、维生素A、果糖、维生素C以及人体所必需的氨基酸,当然西瓜是经常吃的,营养有多少了解?或者好处了解多少?具体功效如下:

1、解暑生津:西瓜清甜多汁、口感爽脆,可以生食也可以榨汁,是纯天然的饮品,富含多种营养素,对人体都是大有益处的,西瓜属于寒味,性寒味甘、生津消渴,适用于暑热烦躁、口舌长疮、消渴多饮、咽喉肿痛;

2、防晒美白:西瓜的含水量很高,富含多种有益于健康和美容的化学成分,西瓜含有的氨基酸,包括腺嘌呤等重要的代谢成分、糖类、维生素、矿物质等营养物质,这些成分很容易被人体皮肤所吸收,对于面部皮肤滋润、防晒、增白的效果非常好,吃完西瓜以后可以用白色的瓜皮敷脸15分钟左右,让皮肤细腻有光泽能起到一点作用;

3、利尿消肿:西瓜有一定利尿作用,加上水分比较多,所以吃完西瓜之后,尿的排量显著增加,从而减少胆色素的含量。西瓜的利尿作用还可以让体内多余的盐分排出体外,减轻浮肿,特别是腿部浮肿,所以说西瓜是美腿消肿的;

4、消除疲劳:西瓜清甜口感是因为富含果糖,夏季昏昏欲睡的午后来一片冰西瓜,可以消除久坐引发的肌无力和疲劳感,驱走懈怠的负面情绪;

5、调节血压:西瓜有能使血压降低的物质,因此血压高的病人常吃西瓜,能够起到降低血压的功效;

6、辅助治疗黄疸:吃西瓜会明显增加尿量,可以减少胆色素含量,并且可以使大便通畅,对于治疗黄疸有一定的作用、有一定的好处。

回答3:

积温法。西瓜从开花到成熟需要一定的积温,一般早中熟品种从开花到成熟需700-800℃,晚熟品种需要1000℃左右。因此,在春季适期播种且气候正常条件下,每个品种的果实发育天数基本上是固定的。早熟品种需28-30天,如京欣一号、中熟品种需30-33天,如暑宝,晚熟品种需35-40天左右,如特大新红宝,故采用计时鉴定果实成熟时对瓜农最为可靠。

回答4:

西瓜的全生育期约80~85天,其生育过程可以分为发芽期、幼苗期、伸蔓期和结果期.
发芽期种子萌动至子叶平展,苗端形成2~3个稚叶.在25℃~30℃条件下,需经10天左右.
幼苗期由第1片真叶露心至5~6叶"团棵期".在20℃~25℃温度下,通常需20天左右,而在15℃~20℃温度下约需30天,
伸蔓期幼苗团棵至坐果期雌花开放.在20℃~25℃温度下,经23~25天.
结果期从坐果节位雌花开放至果实成熟,直至全田采收完毕.主蔓第2、3雌花开放至坐果,在26℃温度下约需4天,此时是由营养生长过渡到生殖生长的转折期,茎叶的增长量和生长速度仍较旺盛,果实的生长刚刚开始,随着果实的膨大,茎叶的生长逐渐减弱,果实为全株的生长中心.果实生长期一般25~28天.
果实的生长主要在前半期,开花后15~18天是果实的膨大阶段.开花后10天果径达成熟期的60%,15天达85%,日增长量最高为开花后6~7天.而果实体积增长高峰较迟,开花后10天约为成熟期的25%,15天约为60%,20天为80%左右,日增长以开花后12天最高.以后继续增长,但增长量小,速度缓慢

回答5:

  • 早熟品种,从播种到收瓜需90-90天,瓜成熟快,从雌花开放到成熟需要25-30d0株酬小,适合密植,优良的品种有京欣、郑杂、早花等小瓜型品种。[17] 

  • 中熟品种,北方从播种到收瓜需90-100天,瓜成熟稍晚,从雌花开放到成熟需要30-40天,株型较大,长势强。该类品种的瓜大、皮厚,较耐运输和贮存,如西农R号等。[18] 

  • 晚熟品种,北方从播种到收瓜需100-120天,软培较少,瓜大,耐贮存,如红优2号等。[

参考资料

百度百科:https://baike.baidu.com/item/%E8%A5%BF%E7%93%9C/333718?fr=aladdin

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