ASSESSMENT OF THE COLLECTION AND OBTAINING HIGHLY PRODUCTIVE FORMS OF COTTON BY THE SIZE OF THE TOTAL LITHUANIA SURFACE OF THE PLANT - AS A BREEDING SIGN

Abstract

The results of breeding experiments on the study of the size of the total leaf surface of the plant as a breeding trait for the evaluation and selection of highly productive genotypes (donors) of cotton are presented. The obtained data confirm that this trait is a good photosynthetic index of plants and strongly correlates with the yield of raw cotton and it is reasonable to select according to its values mainly in the fruiting and maturation phase.  The analysis of the results of the study on 10 hybrids indicates that 6 combinations were allocated to the maximum values of TLSP, their yield, respectively, is in the range of 68,6-112,3 g/plant.