Sequence the principal stages of biological nitrogen fixation in their correct order of occurence-
(A). Formation of infection thread
(B). Rhizobium multiply to colonise.
(C). Curling of root hair
(D). Differentiation of cortical cells into nitrogen fixing cells
Choose the correct answer from the options given below.
The sequence for nitrogen fixation by Rhizobium in legumes involves: (B) Rhizobium multiply to colonize: Bacteria colonize the root surface. (C) Curling of root hair: Root hairs curl in response to bacterial signals.
What is a key financial metric that Agribusiness cooperatives often use to measure profitability?
Concept of allelopathy was given by
Panchayati Raj was started on the recommendation of ……………. Committee
Which one of the following correlation type when one variable increases the other tends to increase?
Which law states that the profit from a limited amount of variable input is maximized when that input is used in such a way that marginal return from th...
Which chemical is used for cryopreservation of seeds?
Gypsum is recommended in cultivation of:
NABARD, which stands for National Bank for Agriculture and Rural Development, is an apex development bank in India. NABARD celebrated its foundation day on
Trichogrammaspp is ___________ parasitoid:
Which of the following is artificial ecosystem?
