Studies On The Differences Of Agronomic Traits And Rice Quality And Their Relations Among Different Types Of Hybrid Rice

This study chose the early rice cooked, early rice, late ripe, two high-yielding rice, three rice, were late rice, three late rice six different types of hybrid rice combinations, different combination types were studied the difference of the difference of agronomic traits, quality traits, analyzed the different types of hybrid rice combinations, the correlation among the quality traits and yield traits, and different types of hybrid rice combination relationship between the main agronomic traits. The results showed that:l.The combination of early rice cooked in the whole growth period on average at around108d, late rice cooked combination average at around114d, in the whole stages were the whole growth period of late rice was an average of around125d, three the whole growth period of late rice was average at around118d, in the early rice cooked material mature after harvest, better collocation planting were late rice material, and mature after harvest late rice cooked material, good collocation three-line late rice planting material. Two lines or three rice combinations the whole growth period is longer, around140d.2.Two high-yielding rice combinations yield the highest, followed by three rice, rice cooked in the lowest, but its growth period is shorter, conducive to collocation planting were late rice combination; The effective panicles:early rice combination> late rice combination> rice combinations; Total grain number per panicle, per panicle with two high-yielding hybrid rice most; Three per spike of rice combinations, the largest two high-yielding rice combinations at the close, were late rice kernels per minimum; Rice combinations plant height was the largest, the second for late rice combination, combination of early rice cooked in plant height is minimal.3. Different types of rice varieties of the correlation between agronomic traits, six combination type of rice yield were positively related to the daily output was very significant or significant difference, suggested that the main way to increase rice production per mu to raise its. Early rice cooked in the combination between grains, growth period and yield, the effective ear and late ripe early rice yield, between two high-yielding rice total grain number per panicle, plant height and yield, and between the three departments between middle-season rice plant height and yield, three late rice seed setting rate, growth period and yield were significant or extremely significant difference between positive correlation.4. Closed to all combinations of the roughness, at around82%. White rice rate was highest for three-line late rice combination, reached73.3%, but all combination was greater than70%), the difference was not big. Whole polished rice rate highest for three-line late rice combination, reached63.13%, the lowest for early rice cooked in Two lines combination, combination of late rice, grain length in the longest, with an average of7.0mm. Length/width was close to all combinations, at about3.0. Early late ripe combination rate, chalk white degree was the highest (chalky rice percentage), followed by early rice cooked in combination, minimum two high-yielding rice combinations. Early rice cooked and three-line late rice combinations amylose content in the highest,20.8%. Gel consistency with two high-yielding hybrid rice highest, reaching78.5%. Alkali value level was higher in late rice combinations, elimination three-line late rice, the highest on average of5.47.5. Early rice cooked in the combination between the whole polished rice rate and per mu yield, rate and chalk white degree (chalky rice percentage and grain were extremely significant difference between the positive correlation, grain length, level of transparency and seed setting rate was negatively related to the extremely significant difference; Between the roughness and per mu, the degree of roughness, chalk white, amylose, between the level of transparency and total grain number per panicle, the roughness, amylose and grain length, grain was significant difference between the positive correlation; Chalk white degree was negatively related to the seed setting rate show significant difference. Early late ripe combination between effective panicles, grain length between amylose and total grain number per panicle, the roughness, polished rice rate and amylose, and had significant negative correlation between the whole growth period, the whole polished rice rate, level of transparency and effective ear, rate (chalky rice percentage and grain, between aspect ratio and the growth period was significant difference between the positive correlation. Two high-yielding hybrid rice combinations were extremely significant difference between aspect ratio and seed setting rate of positive correlation, between the whole polished rice rate and total grain number per panicle and grain length, grain was significant difference between the positive correlation, between the whole polished rice rate and grain, grain length and the whole growth period was negatively related to the significant difference. Three-line rice combinations between the whole polished rice rate and per mu yield, polished rice rate, alkali value between level and output, the roughness and thousand seed weight was negatively related to the extremely significant difference, aspect ratio and daily production, chalk white degree and grain was significant difference between positive correlation. Were late rice combination between the whole polished rice rate and thousand seed weight was negatively related to the extremely significant difference, alkali value level and the difference between the total grain number per panicle significantly negative correlation, chalk white degree and grain was significant difference between positive correlation. Three-line late rice combination between the whole polished rice rate and total grain number per panicle, alkali value grade and difference between effective panicle very significant positive correlation, between the total grain number per panicle and grain length was negatively related to the extremely significant difference, between amylose and effective panicle and grain length, grain, the roughness and the whole growth period show differences between significant positive correlation, gel consistency between effective panicles, rate, chalk white degree (chalky rice percentage and total grain number per panicle, alkali value between magnitude and seed setting rate was negatively related to the significant difference.