Đánh giá khả năng phối hợp chung của các dòng cà chua bi thế hệ S₄ và sự sinh trưởng của các dòng thế hệ S₅

The study aimed to determine the suitable cherry tomato

lines for using as a hybrid material production. Experiments

were arranged in sequence without repeating. The results

from estimating the General Combining Ability (GCA) of 25

tomato S4 selfing lines showed that ten S4 lines (D3.4; D10.4;

D11.4; D12.4; D14.4; D15.4; D17.4; D19.4; D21.4 and D25.4)

performed high GCA values based on the practical yield

characteristic. Ten tomato S5 selfing lines were characterized

by yielding 41.49 - 50.57 tons per ha, red ripened fruit,

high brix values of 6.9 - 8.1% and medium resistance to

Phytophthora infestans disease. In brief, those tomato lines

could be a suitable material source for the production of F1 -

hybrid tomatoes.