The phrase "improved variety" is correct and usable in written English.
It is usually used to describe a new kind of something which is an improvement over a previous version or type. For example, you could say "This new improved variety of apple is far juicier than the last."
In this paper, let us assume the binary variable w to be an indicator for exposure to the improved varieties where w = 1 denotes exposure to at least one improved variety and w = 0, otherwise.
There is as a universal awareness (99%%) of at least one pigeonpea (local + improved) variety by the respondents.
A TPE is the set of all environments, farms, and future seasons in which an improved variety will be grown (IRRI International Rice Research Institute 2006; Fischer et al. 2012).
In general, 54 % of the sample households reported that they grew at least one variety (local/improved) of pigeonpea in 2006/07, however only 14%% grew at least one improved variety of pigeonpea.
Farmers that had planted at least one improved variety over the last one year were classified as adopters and those that have engaged in the cultivation of traditional cassava varieties or have adopted briefly and discontinued adoption as at the time of the survey were classified as non-adopters.
Sixty growers were given improved variety seeds before the rainy season last year and were helped to make them multiply.
We will need improved varieties with improved traits targeting the consumer, while still satisfying the needs of the industry.
included improved varieties from South-East Asia; J3 included a small set (5 acc). of improved varieties derived from Colombia 1; J4 (8 acc).
Improved varieties include "Altifolius," somewhat taller, and "Potter's Wheel," with broader sepals.
Improved varieties of seed are estimated to have boosted yields by 21-43%, independently of fertilisers and other inputs.
These collections preserve rare and endangered plants and their unique characteristics, so that scientists can study them and breeders can use them to develop improved varieties.
