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我们于一九七二年开始开展番茄杂交一代优势利用的研究工作,一九七三年至一九七六年共作早熟品种杂交组合305个、中晚熟品种杂交组合90个,选出了一些较好的组合,并在一九七六年进行了制种,今年可应用于生产。 番茄杂交一代好 一九七六年以苹果青为母本的五个杂交组合(3亩地),总产量36,054斤,平均亩产12,018斤,亩产值1,073元,比大田苹果青增产30.83％,增加收入12.7％。贫下中农高兴地说:“杂交一代就是好,产量高,成熟早。” 番茄杂交一代优势表现在以下几方面: 1.早熟性。番茄杂交一代的早熟性表现在两方面,即始收期提前和早期产量高,而早期产量的提高又是早熟性的主要标志。 杂种一代的早熟性与亲本的生育期密切相关。当两个生育期差别较大的亲本杂交时,其杂种显著早熟。以始收期为例:以晚熟品种为母本、早熟品种为父本的杂种,始收期比母本提早3天,以晚熟品种为父母本的杂种始收期与母本相同,早期产量的提高
In 1972, we started to carry out research on the superior utilization of tomato hybrid generation. From 1973 to 1976, we had 305 hybrid combinations of early-maturing varieties and 90 hybrid combinations of middle-late maturing varieties. We selected some The better combination, which was planted in 1976, can be applied to production this year. The tomato hybrid generation was good for five hybrid combinations (3 mu) with apple green as its mother in 1976 with a total output of 36,054 catties, with an average mu yield of 12,018 catties and a mu output value of 1,073 yuan, 30.83% more than that of the field apple. Increase revenue by 12.7%. Poor middle peasants are happy to say: “The hybrid generation is good, high yield, mature early.” Tomato hybrid generation advantages in the following areas: 1. Prematurity. The early maturity of the tomato cross is manifested in two aspects, that is, the early harvest and the early yield are high, while the increase of the early yield is the main mark of the precociousness. The maturity of the hybrid generation is closely related to the parental growth period. When the parents of two different growth stages of hybrids, the hybrids were significantly precocious. Taking the period of initial harvest as an example: the hybrid of late-maturing varieties as the female parent and the precocious varieties as the male parent, the initial harvest period is three days earlier than the female parent, the hybrids with the late maturing varieties as the parents have the same ending time as the female parent, and the early yield Improve